Axion Zt18533 Users Manual

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OPERATOR’S

MANUAL

18.5, 21, 26HP Zero-Turn Riders

Mfg. No. Description

7800611 Simplicity Axion Model ZT18533, 18.5HP w/ 33” Mower

7800616 Simplicity Axion Model CZT18533, 18.5HP w/ 33” Mower (California Model)

7800620 Snapper 150Z Model SC18533, 18.5HP w/ 33” Mower

7800625 Snapper 150Z Model CSC18533, 18.5HP w/ 33” Mower (California Model)

7800612 Simplicity Axion Model ZT2142, 21HP w/ 42” Mower

7800617 Simplicity Axion Model CZT2142, 21HP w/ 42” Mower (California Model)

7800615 Simplicity Axion Model ZT2142, 21HP w/ 42” Mower (Australia Model)

7800621 Snapper 150Z Model SC2142, 21HP w/ 42” Mower

7800626 Snapper 150Z Model CSC2142, 21HP w/ 42” Mower (California Model)

7800624 Snapper 150Z Model SC2142, 21HP w/ 42” Mower (Australia Model)

7800630 Snapper 150Z Model SC26520, 26HP w/ 52” Mower

Axion / 150Z Series

Manual No. 7103857

Revision ‘-’, 10/27/2009

Not for

Reproduction

Not for

Reproduction

3

TABLE OF CONTENTS

Safety Rules

General Operation...................................................4

Transportation & Storage ........................................4

Slope Operation ......................................................5

Towed Equipment....................................................5

Children...................................................................5

Emissions................................................................5

Ignition System .......................................................5

Slope Sighting Guide ..............................................6

Service & Maintenance ...........................................7

Safety & Operation Decals......................................8

Identification Numbers................................................9

Operation

Control Functions..................................................10

General Operating Safety .....................................11

Checks before Starting..........................................12

Fuel Recommendations ........................................12

Emergency Stopping.............................................13

Stopping the Rider and Engine .............................13

Starting the Engine ...............................................13

Mowing..................................................................13

Pushing the Rider by Hand ...................................13

Driving Practice.....................................................14

Mower Deck Removal & Installation......................16

Maintenance

Maintenance Schedule .........................................18

Rider Maintenance

Accessing the Engine Compartment.....................19

Clean Debris from Rider and Engine ....................19

Clean Debris from Engine Cooling Areas .............19

Check Tire Pressure..............................................19

Lubrication ............................................................20

Clean Deck & Check/Replace Mower Blades .......21

Clean the Battery & Cables...................................24

Check Rider Safety System ..................................24

Check/Adjust PTO Clutch......................................25

Engine Maintenance

Check Engine Oil Level .........................................26

Change Engine Oil................................................26

Change Engine Oil & Filter ...................................26

Service Air Filter & Pre-Cleaner............................27

Replace Spark Plug ..............................................29

Service & Adjustments

Ground Speed Control Lever Adjustment .............30

Speed Balancing Adjustment................................30

Cutting Height Adjustment ....................................30

PTO Clutch Adjustment.........................................30

Brake Adjustment..................................................31

Battery Charging ...................................................31

Engine Adjustments ..............................................31

Mower Deck Leveling Adjustments .......................32

Mower Belt Replacement......................................36

Storage..................................................................37

Troubleshooting

Troubleshooting the Rider - Chart .........................38

Troubleshooting the Mower - Chart .......................39

Specifications ............................................................40

Service Items .............................................................41

Lawn Care ..............................................................LC-1

NOTE: In this manual, “left” and “right” are referred to as seen from the operating position.

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4

SAFETY RULES

GENERAL OPERATION

1. Read, understand, and follow all instructions in the

manual and on the unit before starting.

2. Do not put hands or feet near rotating parts or under

the machine. Keep clear of the discharge opening at

all times.

3. Only allow responsible adults, who are familiar with

the instructions, to operate the unit (local regulations

can restrict operator age).

4. Clear the area of objects such as rocks, toys, wire,

etc., which could be picked up and thrown by the

blade(s).

5. Be sure the area is clear of other people before

mowing. Stop the unit if anyone enters the area.

6. Never carry passengers.

7. Do not mow in reverse unless absolutely necessary.

Always look down and behind before and while

travelling in reverse.

8. Never direct discharge material toward anyone. Avoid

discharging material against a wall or obstruction.

Material may ricochet back toward the operator. Stop

the blade(s) when crossing gravel surfaces.

9. Do not operate the machine without the entire grass

catcher, discharge guard (deflector), or other safety

devices in place and operational.

10. Slow down before turning.

11. Never leave a running unit unattended. Always

disengage the blades (PTO), set parking brake, stop

engine, and remove keys before dismounting.

12. Disengage blades (PTO) when not mowing. Shut off

engine and wait for all parts to come to a complete

stop before cleaning the machine, removing the grass

catcher, or unclogging the discharge guard.

13. Operate the machine only in daylight or good artificial

light.

14. Do not operate the unit while under the influence of

alcohol or drugs.

15 Watch for traffic when operating near or crossing

roadways.

16. Use extra care when loading or unloading the unit

into a trailer or truck.

17. Always wear eye protection when operating this unit.

18. Data indicates that operators, age 60 years and

above, are involved in a large percentage of power

equipment-related injuries. These operators should

evaluate their ability to operate the equipment safely

enough to protect themselves and others from injury.

19. Follow the manufacturer’s recommendations for wheel

weights or counterweights.

20. Keep in mind the operator is responsible for accidents

occurring to other people or property.

21. All drivers should seek and obtain professional and

practical instruction.

22. Always wear substantial footwear and trousers.

Never operate when barefoot or wearing sandals.

23. Before using, always visually check that the blades

and blade hardware are present, intact, and secure.

Replace worn or damaged parts.

24. Disengage attachments before: refueling, removing

an attachment, making adjustments (unless the

adjustment can be made from the operator’s

position).

25. When the machine is parked, stored, or left

unattended, lower the cutting means unless a positive

mechanical lock is used.

26. Before leaving the operator’s position for any reason,

engage the parking brake, disengage the blades

(PTO), stop the engine, and remove the key.

27. To reduce fire hazard, keep the unit free of grass,

leaves, & excess oil. Do not stop or park over dry

leaves, grass, or combustible materials.

28. It is a violation of California Public Resource Code

Section 4442 to use or operate the engine on or near

any forest-covered, brush-covered, or grass-covered

land unless the exhaust system is equipped with a

spark arrester meeting any applicable local or state

laws. Other states or federal areas may have similar

laws.

29. OSHA regulations may require the use of hearing

protection when exposed to sound levels greater than

85 dBA for an 8 hour time period.

Read these safety rules and follow them closely. Failure to obey these rules could result in loss of control

of unit, severe personal injury or death to you, or bystanders, or damage to property or equipment.

This mowing deck is capable of amputating hands and feet and throwing objects.

The triangle in text signifies important cautions or warnings which must be followed.

TRANSPORTING AND STORAGE

1. When transporting the unit on an open trailer, make

sure it is facing forward, in the direction of travel. If

the unit is facing backwards, wind lift could damage

the unit.

2. Always observe safe refueling and fuel handling

practices when refueling the unit after transportation

or storage.

3. Never store the unit (with fuel) in an enclosed poorly

ventilated structure. Fuel vapors can travel to an

ignition source (such as a furnace, water heater, etc.)

and cause an explosion. Fuel vapor is also toxic to

humans and animals.

4. Never store the unit or fuel container inside where

there is an open flame or pilot light, such as near a

water heater. Allow unit to cool before storing.

CAUTION

This machine produces sound levels in

excess of 85 dBA at the operator’s ear and

can cause hearing loss though extended

periods of exposure.

Wear hearing protection when operating this

machine.

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CHILDREN

Tragic accidents can occur if the operator is not alert to the

presence of children. Children are often attracted to the unit

and the mowing activity. Never assume that children will

remain where you last saw them.

1. Keep children out of the mowing area and under the

watchful care of another responsible adult.

2. Be alert and turn unit off if children enter the area.

3. Before and during reverse operation, look behind and

down for small children.

4. Never carry children, even with the blade(s) off. They

may fall off and be seriously injured or interfere with

safe unit operation. Children who have been given

rides in the past may suddenly appear in the mowing

area for another ride and be run over or backed over

by the machine.

5. Never allow children to operate the unit.

6. Use extra care when approaching blind corners,

shrubs, trees, or other objects that may obscure

vision.

EMISSIONS

1. Engine exhaust from this product contains chemicals

known, in certain quantities, to cause cancer, birth

defects, or other reproductive harm.

2. Look for the relevant Emissions Durability Period and

Air Index information on the engine emissions label.

IGNITION SYSTEM

1. This spark ignition system complies with Canadian

ICES-002.

SLOPE OPERATION

Slopes are a major factor related to loss-of-control and tip-

over accidents, which can result in severe injury or death.

Operation on all slopes requires extra caution. If you cannot

back up the slope or if you feel uneasy on it, do not operate

on it.

Control of a walk-behind or ride-on machine sliding on a

slope will not be regained by the application of the brake.

The main reasons for loss of control are: insufficient tire

grip on the ground, speed too fast, inadequate braking, the

type of machine is unsuitable for its task, lack of awareness

of the ground conditions, incorrect hitching and load

distribution.

1. Mow up and down the face of slopes, not across.

2. Watch for holes, ruts, or bumps. Uneven terrain could

overturn the unit. Tall grass can hide obstacles.

3. Choose a slow speed so that you will not have to stop

or change speeds while on the slope.

4. Do not mow on wet grass. Tires may loose traction.

5. Avoid starting, stopping, or turning on a slope. If tires

lose traction (i.e. machine stops forward motion on a

slope), disengage the blade(s) (PTO) and drive

slowly off the slope.

6. Keep all movement on slopes slow and gradual. Do

not make sudden changes in speed or direction,

which could cause the machine to rollover.

7. Use extra care while operating machines with grass

catchers or other attachments; they can affect the

stability of the unit. Do not use on steeps slopes.

8. Do not try to stabilize the machine by putting your

foot on the ground (ride-on units).

9. Do not mow near drop-offs, ditches, or

embankments. The mower could suddenly turn over if

a wheel is over the edge of a cliff or ditch, or if an

edge caves in.

10. Do not use grass catchers on steep slopes.

11. Do not mow slopes if you cannot back up them.

12. See your authorized dealer/retailer for

recommendations of wheel weights or

counterweights to improve stability.

13. Remove obstacles such as rocks, tree limbs, etc.

14. Use slow speed. Tires may lose traction on slopes

even through the brakes are functioning properly.

15. Do not turn on slopes unless necessary, and then,

turn slowly and gradually uphill, if possible. Never

mow down slopes.

TOWED EQUIPMENT (RIDE-ON UNITS)

1. Tow only with a machine that has a hitch designed for

towing. Do not attach towed equipment except at the

hitch point.

2. Follow the manufacturer’s recommendations for

weight limit for towed equipment and towing on

slopes. See attaching a trailer under OPERATION.

3. Never allow children or others in or on towed

equipment.

4. On slopes, the weight of the towed equipment may

cause loss of traction and loss of control.

5. Travel slowly and allow extra distance to stop.

6. Do not shift to neutral and coast down hill.

WARNING

Never operate on slopes greater than 17.6 percent

(10°) which is a rise of 3-1/2 feet (106 cm) vertically in

20 feet (607 cm) horizontally.

Select slow ground speed before driving onto slope.

Use extra caution when operating on slopes with rear-

mounted grass catchers.

Mow up and down the face of slopes, not across. Use

caution when changing directions and DO NOT

START OR STOP ON SLOPE.

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WARNING: To avoid serious injury, operate your unit up and

down the face of slopes, never across the face. Do not operate

on slopes greater than 10 degrees. Make turns gradually to

prevent tipping or loss of control. Exercise extreme caution

when changing direction on slopes. Braking may be affected by

attachments. Reduce speed on slopes.

1. Fold this page along dotted line indicated above.

2. Hold page before you so that its left edge is vertically parallel to a tree

trunk or other upright structure.

3. Sight across the fold in the direction of hill slope you want to measure.

4. Compare the angle of the fold with the slope of the hill.

ONLY RIDE UP AND DOWN HILL,

NOT ACROSS HILL

F

O

L

D

A

LON

G

D

OT

TED LI

N

E

THIS IS A

10 DEGREE SLOPE

10 DEGREES MAX.

SUGGESTED GUIDE FOR SIGHTING SLOPES FOR SAFE OPERATION

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7

SERVICE AND MAINTENANCE

Safe Handling of Gasoline

1. Extinguish all cigarettes, cigars, pipes, and other

sources of ignition.

2. Use only approved gasoline containers.

3. Never remove the gas cap or add fuel with the engine

running. Allow the engine to cool before refueling.

4. Never fuel the machine indoors.

5. Never store the machine or fuel container where there

is an open flame, spark, or pilot light such as near a

water heater or other appliance.

6. Never fill containers inside a vehicle or on a truck bed

with a plastic bed liner. Always place containers on

the ground away from your vehicle before filling.

7. Remove gas-powered equipment from the truck or

trailer and refuel it on the ground. If this is not

possible, then refuel such equipment on a trailer with

a portable container, rather than from a gasoline

dispenser nozzle.

8. Keep nozzle in contact with the rim of the fuel tank or

container opening at all times until fueling is

complete. Do not use a nozzle lock-open device.

9. If fuel is spilled on clothing, change clothing

immediately.

10. Never over-fill the fuel tank. Replace gas cap and

tighten securely.

11. Use extra care in handling gasoline and other fuels.

They are flammable and vapors are explosive.

12. If fuel is spilled, do not attempt to start the engine but

move the machine away from the area of spillage and

avoid creating any source of ignition until fuel vapors

have dissipated.

13. Replace all fuel tank caps and fuel container caps

securely.

Service & Maintenance

1. Never run the unit in an enclosed area where carbon

monoxide fumes may collect.

2. Keep nuts and bolts, especially blade attachment

bolts, tight and keep equipment in good condition.

3. Never tamper with safety devices. Check their proper

operation regularly and make necessary repairs if

they are not functioning properly.

4. Keep unit free of grass, leaves, or other debris build-

up. Clean up oil or fuel spillage. and remove any fuel-

soaked debris. Allow machine to cool before storage.

5. If you strike an object, stop and inspect the machine.

Repair, if necessary, before restarting.

6. Never make adjustments or repairs with the engine

running.

7. Check grass catcher components and the discharge

guard frequently and replace with manufacturer’s

recommended parts, when necessary.

8. Mower blades are sharp. Wrap the blade or wear

gloves, and use extra caution when servicing them.

9. Check brake operation frequently. Adjust and service

as required.

10. Maintain or replace safety and instructions labels, as

necessary.

11. Do not remove the fuel filter when the engine is hot

as spilled gasoline may ignite. Do not spread fuel line

clamps further than necessary. Ensure clamps grip

hoses firmly over the filter after installation.

12. Do not use gasoline containing METHANOL, gasohol

containing more than 10% ETHANOL, gasoline

additives, or white gas because engine/fuel system

damage could result.

13. If the fuel tank must be drained, it should be drained

outdoors.

14. Replace faulty silencers/mufflers.

15. Maintain or replace safety and instruction labels as

necessary.

16. Use only authorized replacement parts when making

repairs.

17. Always comply with factory specifications on all

settings and adjustments.

18. Only authorized service locations should be utilized

for major service and repair requirements.

19. Never attempt to make major repairs on this unit

unless you have been properly trained. Improper

service procedures can result in hazardous operation,

equipment damage and voiding of manufacturer’s

warranty.

20. On multiple blade mowers, take care as rotating one

blade can cause other blades to rotate.

21. Do not change engine governor settings or over-

speed the engine. Operating the engine at excessive

speed can increase the hazard of personal injury.

22. Disengage drive attachments, stop the engine,

remove the key, and disconnect the spark plug wire(s)

before: clearing attachment blockages and chutes,

performing service work, striking an object, or if the

unit vibrates abnormally. After striking an object,

inspect the machine for damage and make repairs

before restarting and operating the equipment.

23. Never place hands near the moving parts, such as a

hydro pump cooling fan, when the tractor is running.

(Hydro pump cooling fans are typically located on top

of the transaxle).

24. Units with hydraulic pumps, hoses, or motors:

WARNING: Hydraulic fluid escaping under pressure

may have sufficient force to penetrate skin and cause

serious injury. If foreign fluid is injected into the skin it

must be surgically removed within a few hours by a

doctor familiar with this form of injury or gangrene

may result. Keep body and hands away from pin

holes or nozzles that eject hydraulic fluid under high

pressure. Use paper or cardboard, and not hands, to

search for leaks. Make sure all hydraulic fluid

connections are tight and all hydraulic hoses and

lines are in good condition before applying pressure

to the system. If leaks occur, have the unit serviced

immediately by your authorized service center.

25. WARNING: Stored energy device. Improper release

of springs can result in serious personal injury.

Springs should be removed by an authorized

technician.

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8

SAFETY & OPERATION DECALS

This unit has been designed and manufactured to

provide you with the safety and reliability you would

expect from an industry leader in outdoor power

equipment manufacturing.

Although reading this manual and the safety instructions

it contains will provide you with the necessary basic

knowledge to operate this equipment safely and

effectively, we have placed several safety labels on the

unit to remind you of this important information while you

are operating your unit.

All DANGER, WARNING, CAUTION and instructional

messages on your rider and mower should be carefully

read and obeyed. Personal bodily injury can result when

these instructions are not followed. The information is for

your safety and it is important! The safety decals below

are on your rider and mower.

If any of these decals are lost or damaged, replace them

at once. Contact your dealer for replacements.

These labels are easily applied and will act as a constant

visual reminder to you, and others who may use the

equipment, to follow the safety instructions necessary for

safe, effective operation.

Burn hazard

The exhaust pipe and surrounding

surfaces are hot and can cause

burns.

Avoid contact with hot surfaces.

WARNING

173xxxx

Right Ground

Speed Lever

(Controls Right Drive Wheel)

Forward

Neutral Start / Park

Reverse

174xxxx

Left Ground

Speed Lever

(Controls Right Drive Wheel)

Forward

NeutralStart / Park

Reverse

1733458

Low Cut

1

4

3

2

High Cut

1734276

Decal - Ground

Speed Lever

Part No. 7102576

Decal - Ground Speed Lever

Part No. 1734270

Decal - Cutting Height

Indicator

Part No. 1733458

Decal - Parking Brake

Part No. 7102578

Decal - Amputation Hazard

(42 & 50” Decks)

Part No. 1704276

Decal - Amputation and

Thrown Objects Hazard

(42 & 50” Decks)

Part No. 1704277

Decal - Amputation and

Thrown Objects Hazard

(33” Decks)

Part No. 7101665

Decal - Amputation and

Thrown Objects Hazard

(33” Decks)

Part No. 7101665

Decal - Operation, Lower

Part No. 7103185

Decal - Operation, Upper

Part No. 7102575

Decal - Cutting

Height Switch

Part No. 1734276

Decal - Hot Surfaces

Part No. 1734273

(Located on RH side)

Decal - Transmission

Release

Part No. 1734532

(Located on rear frame)

Decal - Control Panel

Part No. 7103082

DANGER

Amputation Hazard

1704276

To av oid injury from rotating

blades, stay clear of deck edge.

DANGER

Amputation and

Thrown Objects Hazard

1704277

To avoid injury from rotating blades and

thrown debris, stay clear of deck edge

and discharge. Do not mow without

deflector or entire grass catcher in place.

Decal - Tracking

Adjustment

Part No. 1726638

Decal - Cutting Hazard

Part No. 1734672

(Located on rear frame)

Cutting

Height

RAISE

MOWER

LOWER

MOWER

1734276

7102575

To Turn On the Mower Blades:

1. Sit in seat.

2. Start the engine (see “To Start Engine”).

3. Pull the mower blade switch UP to

turn the mower blades ON.

To Stop the Engine:

1. Move ground speed levers to

START/PARK.

2. Move parking brake lever to

ENGAGE position.

3. Move engine speed control

to SLOW.

4. Turn ignition switch to OFF.

To Turn the Mower Blades Off:

1. Push the mower blade switch DOWN to

turn the mower blades OFF.

To D rive:

1. Start the engine (see “To Start Engine”).

2. Move parking brake control to

DISENGAGE position.

3. Move both ground speed levers in from

PARK position.

4. Move levers as shown to travel.

7102576

7102578

DANGER

Amputation and thrown objects hazard

Keep hands and feet

away from deck.

Do not operate mower

unless discharge chute

or entire grass catcher

is in its proper place. 7101665

DANGER

Amputation and thrown objects hazard

Keep hands and feet

away from deck.

Do not operate mower

unless discharge chute

or entire grass catcher

is in its proper place. 7101665

7103082

Sit in the seat.

Move the ground speed levers to ST ART/PARK

positions (move both levers out).

Move par king brake control to ENGA GE position.

Turn the mo wer blades OFF (push switch down).

Move the throttle/choke control to the

CHOKE position.

Turn ignition switch to ST ART to crank the engine .

After the engine star ts:

-release the ignition switch key (it will return to RUN position)

-move the throttle/choke control to the F AST position for

maximum engine speed

Always set the engine speed to F AST for mowing .

1

2

3

4

5

6

7

35

6

4

7103185

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9

IDENTIFICATION NUMBERS

ID Tag

When contacting the service center for replacement

parts, service, or information you MUST have these

numbers.

Record your model name/number, manufacturer’s

identification numbers, and engine serial numbers in the

space provided for easy access.

The identification tag is located on the underside of the

seat. Tilt the seat forward to access the ID tag.

SAMPLE

PRODUCT REFERENCE DATA

Model Description Name/Number

Part Number Unit Serial Number

Date Purchased

ENGINE REFERENCE DATA

Engine Make Engine Model

Engine Type/Spec Engine Code/Serial Number

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OPERATION

10

Ground Speed Levers

These levers control the ground speed of the rider. The

left lever controls the left rear drive wheel and the right

lever controls the right rear drive wheel.

Pushing the levers out to the side, away from the

operator’s lap (top inset, Figure 1), is the proper position

for starting the rider. Pulling the levers in across the

operator’s lap puts the levers in DRIVE positions.

From DRIVE position, moving a lever forward increases

the FORWARD speed of the associated wheel. Pulling

back on a lever increases the REVERSE speed. The

further a lever is pushed, the faster the drive wheel will

turn.

See DRIVING PRACTICE for steering instructions.

Parking Brake Lever

Move the parking brake lever (bottom inset, Figure 1) up

and across and into the locking notch to engage and lock

the parking brake. Move the parking brake lever across

and down to disengage the parking brake. The engine

will not start unless the parking brake is engaged.

Note: The parking brake must be disengaged before

operating the ground speed levers.

Engine Speed Control/Choke

The engine speed control/choke controls the engine

speed and choke. Always set the engine speed to FAST

for driving and mowing. Move the engine speed control

back to SLOW to decrease engine speed. Move the

engine speed control/choke control to the CHOKE

position for starting a cold engine. A warm engine may

not require choking.

Figure 1. Controls

Left

Ground Speed

Control Lever

Right

Ground Speed

Control Lever

Fuel Tank

Cap

Transmission

Release Levers

Parking

Brake

Lever

Mower

Cutting

Height

Switch

Ignition

Switch

Mower Blade

Switch

Engine

Speed

(Fast)

Engine

Speed

(Slow)

Choke

OFF RUN START

Ground Speed Levers -

DRIVE Positons

Ground Speed Levers -

START/PARK Positons

CONTROL FUNCTIONS

The information below briefly describes the

function of individual controls. Starting,

stopping, driving, and mowing require the

combined use of several controls applied in

specific sequences. To learn what combination

and sequence of controls to use for various

tasks please read the entire section.

Parking Brake Lever -

DISENGAGE Positon

Parking Brake Lever -

ENGAGE Positon

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11

Mower Cutting Height Switch

To increase the mower cutting height (raise the mower

deck), press the top of the yellow cutting height switch.

To decrease mower cutting height (lower the mower

deck), press the bottom of the switch. Mower cutting

height range is approximately 3-3/4” to 1-1/2”. The

cutting height gauge indicates the position of the mower

deck. The cutting height gauge is located on the front of

the rider, just behind the driver’s left leg.

Ignition Switch

The ignition switch starts and stops the engine; it has

three positions:

OFF Stops the engine and shuts off the

electrical system.

RUN Allows the engine to run and powers the

electrical system.

START Cranks the engine for starting.

NOTE: Never leave the ignition switch in the RUN

position with the engine stopped. This drains the battery.

Mower Blade Switch

The yellow mower blade switch turns the mower blades

on and off. To turn the mower blades ON, pull the switch

up. To turn the mower blades OFF, push the switch

down. Always set the engine speed control to FAST

before turning the mower blades ON, and while mowing.

Transmission Release Levers

The transmission release levers deactivate the

transmissions so that the unit can be pushed by hand.

See PUSHING THE UNIT BY HAND for operational

information.

Fuel Tank

To remove the fuel tank cap, turn it counterclockwise.

GENERAL OPERATING SAFETY

Before first time operation:

• Be sure to read all information in the Safety and

Operation sections before attempting to operate this

rider and mower.

• Become familiar with all of the controls and how to stop

the unit.

• Drive in an open area without mowing to become

accustomed to driving the unit.

WARNING

If you do not understand how a specific control

functions, or have not yet thoroughly read the

CONTROL FUNCTIONS section, do so now.

Do NOT attempt to operate the rider without first

becoming familiar with the location and function

of ALL controls.

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12

WARNING

Never allow passengers to ride on the unit.

Before leaving the operator’s position for any

reason, engage the parking brake and disengage

the PTO. Never leave the unit unattended (i.e. out

of sight) with the engine running.

To reduce fire hazard, keep the engine, rider and

mower free of grass, leaves and excess grease.

Do not stop or park rider over dry leaves, grass or

combustible materials.

Gasoline is highly flammable and must be

handled with care. Never fill the tank when the

engine is still hot from recent operation. Do not

allow open flame, smoking or matches in the area.

Avoid over-filling and wipe up any spills.

Figure 2. Pre-Start Checks

A. Fuel Tank Cap

A

WARNING

Never operate on slopes greater than 17.6 percent

(10°) which is a rise of 3-1/2 feet (106 cm)

vertically in 20 feet (607 cm) horizontally.

Select slow ground speed before driving onto a

slope. Use extra caution when operating on

slopes with a rear-mounted grass catcher.

Mow up and down the face of slopes, not across.

Use caution when changing directions and DO

NOT START OR STOP ON A SLOPE.

Do not load this zero-turn rider on a trailer or

truck using two separate ramps. Only use a

single ramp that is at least one foot wider than

the width of the rear wheels of this rider. This

rider has a zero turning radius and the wheels

could fall off the ramps, or the rider could tip over

injuring the operator or bystanders.

WARNING - TRAILERS

CHECKS BEFORE STARTING

• Check that the crankcase oil is filled to full mark on

dipstick (see CHECK ENGINE OIL in the

Maintenance section).

• Fill the fuel tank with fresh fuel.

FUEL RECOMMENDATIONS

For daily operation: Use only unleaded gasoline with a

pump sticker octane rating of 87 or higher. Gasohol (up

to 10% ethyl alcohol, 90% unleaded gasoline by volume)

is approved as a fuel. Methyl Teriary Butyl Ether (MTBE)

and unleaded gasoline blends (up to a maximum of 15%

MTBE by volume) are approved as a fuel. Do not use

unapproved gasolines, such as E85. Do not mix oil in

gasoline or modify the engine to run on alternate fuels.

This will damage the engine components and void the

engine warranty. Do not use fuel additives other than

fuel stabilizer.

For storage: CAUTION: Alcohol blended fuels (called

gasohol or using ethanol or methanol) can attract

moisture which leads to separation and formation of

acids during storage. Acidic gas can damage the fuel

system of an engine while in storage.

To avoid engine problems always use fuel stabilizer,

especially before storage of 30 days or longer. Use fresh

fuel next season. See STORAGE instructions for

additional information.

Never use engine or carburetor cleaner products in the

fuel tank or permanent damage may occur. To add fuel:

1. Remove the fuel cap (B, Figure 2).

2. Fill the tank. Do not overfill. Leave 2 inches (5 cm) of

space in the tank for fuel expansion.

3. Install and hand tighten the fuel cap.

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9. Stop the rider and engine (see STOPPING THE

RIDER AND ENGINE).

PUSHING THE RIDER BY HAND

NOTE: Do not disengage the transmissions if parked on

a slope.

1. Turn the mower blades OFF, push the ground speed

control levers out to their START/PARK positions,

engage the parking brake, turn the ignition switch

OFF, remove the key, and wait for all moving parts to

stop.

2. Locate the transmission release levers (C, Figure 3)

at the rear of the unit.

3. Pull both levers back and down to release the

transmissions (position B, Figure 3).

4. Pull the ground speed control levers in to their DRIVE

positions, and disengage the parking brake.

The rider can now be pushed by hand.

5. After moving the rider, set the ground speed control

levers to START/PARK, engage the parking brake,

and push both transmission release levers forward to

re-engage the transmissions (position A, Figure 3).

DO NOT TOW RIDER

Towing the unit will cause transmission

damage. Do not use another vehicle to push

or pull this unit. Do not use this unit to push

or pull another vehicle or object.

Figure 3. Transmission Release Levers

A. Drive Position

B. Push Position

C. Transmission Release Levers

A

B

EMERGENCY STOPPING

In the event of an emergency the engine can be stopped

by simply turning the ignition switch to STOP. Use this

method only in emergency situations. For normal engine

shut down follow the procedure given in STOPPING THE

RIDER AND ENGINE.

STOPPING THE RIDER & ENGINE

1. Return the ground speed control levers to

START/PARK positions to stop rider movement.

2. Engage the parking brake.

3. Turn off the mower blades by pushing the mower

blade switch down to the OFF position.

4. Move the engine speed control to SLOW position and

turn the ignition switch to OFF. Remove the key.

STARTING THE ENGINE

1. While sitting in the seat, make sure the mower blade

switch is OFF, the ground speed control levers are

locked in START/PARK positions, and the parking

brake is engaged.

2. Move the engine speed control/choke to the choke

position for starting a cold engine. A warm engine

may not require choking.

3. Insert the key into the ignition switch and turn it to

START to crank the engine.

4. After the engine starts, release the key. It will return

to the RUN position.

5. Move the engine speed control/choke to the FAST

position to increase engine speed and SLOW

position to decrease engine speed. Always operate

with engine speed set to FAST.

6. Warm the engine by running it for at least a minute

before turning on the mower blades, or driving the

unit.

ALWAYS operate the unit with the engine speed

control set to FAST when mowing or driving.

NEVER engage the mower blades with the engine

speed set to SLOW.

MOWING

1. Start the engine (see STARTING THE ENGINE).

2. Set the mower cutting height to the desired setting

using the mower cutting height switch.

3. Set the engine speed control to FAST.

4. Turn the mower blades ON (pull switch up).

5. Disengage the parking brake.

6. Move the ground speed control levers in from

START/PARK positions to drive positions (levers in

across the operator’s lap).

7. Begin mowing. See DRIVING PRACTICE.

8. When finished, turn the mower blades OFF (push

switch down).

C

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14

DRIVING PRACTICE -

BASIC DRIVING

WARNING: Never operate on slopes greater than 17.6%

(10°). See SLOPE OPERATION in the safety section.

Zero turn riders operate differently from other four-

wheeled vehicles. The drive wheels are also your

steering wheels. If you cannot drive the unit on a hill, you

will not be able to steer the unit on it. Operating zero

turn units on slopes requires extra caution.

The lever controls of the zero turn rider are very

responsive, and learning to gain a smooth and efficient

control of the rider’s forward, reverse, and turning

movements will take some practice.

Spend some time going through the following maneuvers

and becoming familiar with how the unit accelerates,

travels, and steers — before you begin mowing —is

absolutely essential to getting the most out of the zero

turn rider.

Avoid turf damage! To avoid turf damage, keep both

drive wheels moving while executing turns. Pivoting on

one wheel, or dragging a wheel through a turn will

damage your lawn.

Locate a smooth, flat area of your lawn — one with

plenty of room to maneuver. (Clear the area of objects,

people and animals before you begin.) Operate the unit

at mid-throttle during this practice session (ALWAYS

operate at full throttle when mowing), and turn slowly to

prevent tire slippage and damage to your lawn.

We suggest you begin with the Smooth Travel procedure

to the right, and then advance through the forward,

reverse, and turning maneuvers.

Forward Travel Practice

Gradually move both ground speed control levers evenly

FORWARD from neutral. Slow down and repeat.

Reverse Travel Practice

LOOK DOWN & BEHIND, then gradually move both

ground speed control levers evenly BACK from neutral.

Slow down and repeat.

NOTE: Practice backing up for several minutes before

attempting to do so near objects. The rider turns as

sharply in reverse as when going forward, and backing

up straight takes practice.

Figure 5. Forward Travel

Forward Travel

Figure 6. Reverse Travel

Reverse Travel

Smooth Travel

The lever controls of the

zero turn rider are

highly responsive.

The BEST method of

handling the ground

speed control levers is in

three steps — as shown

in Figure 4.

FIRST place your hands

onto the levers as

shown.

SECOND, to go forward

gradually push the levers

forward with your palms.

THIRD, to speed up

move the levers farther

forward. To slow down

smoothly, slowly move

the levers back toward

neutral.

Figure 4. Move Control

Levers Gradually

WARNING

Do not mow in reverse unless absolutely

necessary. Always look down and behind before

and while traveling in reverse.

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15

ADVANCED DRIVING

Executing an End-Of-Row Zero Turn

Your zero turn rider’s unique ability to turn in

place allows you to turn around at the end of a

cutting row rather than having to stop and make

a Y-turn before starting a new row.

For example, to execute a right end-of row zero

turn:

1. Slow down at the end of the row.

2. Move the LEFT ground speed control lever

forward slightly while moving the RIGHT

ground speed control lever back to center

and then slightly back from center. Be sure

to keep both wheels moving to avoid turf

damage.

3. Begin mowing forward again.

This technique turns the rider RIGHT and

slightly overlaps the row just cut —eliminating

the need to back up and re-cut missed grass.

As you become more familiar and experienced

with operating the zero turn rider, you will learn

more maneuvers that will make your mowing

time easier and more enjoyable.

Remember, the more you practice, the better

your control of the rider will be!

Practice Turning Around a Corner

While traveling forward allow one handle to gradually

return back toward neutral. Practice several times before

mowing.

NOTE: To prevent damaging your lawn by pivoting

directly on the tire tread, it is best to keep both wheels

going at least slightly forward.

Executing Turns

Figure 7. Right Turn Figure 8. Turning in Place

Turning In Place

Figure 9. Executing an End-Of-Row Turn

Practice Turning In Place

To “zero turn” means to turn in place. To turn in place,

gradually move one ground speed control lever forward

from neutral and one lever back from neutral

simultaneously. Repeat several times.

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16

MOWER DECK REMOVAL &

INSTALLATION - 33” DECKS

NOTE: Perform mower removal and installation on a

hard, level surface such as a concrete floor.

Removing the Mower Deck

1. Turn the mower blades OFF, put the ground speed

control levers in START/PARK position, engage the

parking brake, turn the ignition OFF, and wait for all

moving parts to stop.

2. Pivot the front wheels forward.

3. Pull the back-side idler pulley (C, Figure 11) forward

to release belt tension. Remove the mower belt from

engine PTO pulley (A).

4. Turn the ignition switch from OFF to RUN without

starting the engine.

5. Use the mower cutting height switch to raise the

mower deck.

6. Place 4x4 wood blocks (D, Figure 10) under the front

and rear lip of the mower deck to securely support it.

7. Use the mower cutting height switch to fully lower the

mower so that is it resting on the 4x4 wood blocks.

8. Turn the ignition switch to OFF and remove the key.

9. Remove the hair pin clips (A) securing the rear

mower lift arms (B) and the front hitch rod (C) to the

mower deck.

10. Separate the rear lift arms from the mower deck.

Repeat on both sides of the mower.

11. Remove the front hitch rod (C) from the front hitch

brackets.

12. Slide the mower deck out from under the rider.

Installing the Mower Deck

1. Slide the mower deck under the right side of the rider.

Align the holes in the front hitch brackets, and insert

the front hitch rod (C, Figure 10). Secure with hair pin

clip (A).

2. Connect the rear lift arms to the mower deck. Secure

with hair pin clips (A).

3. Insert the key into the ignition switch. Turn the switch

from OFF to RUN without starting the engine.

4. Use the cutting height switch to raise the mower until

it is no longer resting on the 4x4 wood blocks (D).

5. Turn the ignition switch OFF and remove the key.

Remove the 4x4 blocks (D).

6. Release mower belt tension, and install the belt as

shown in Figure 11.

WARNING

After lowering the mower cutting height, engage

parking brake, turn off the mower blades, turn the

ignition switch to STOP, and remove key before

attempting to install or remove the mower.

A

B

C

D

Figure 11. Mower Belt Routing - 33” Decks

A. Engine PTO Pulley

B. Mower Drive Belt

C. Back-Side Idler Pulley

D. Stationary Idler Pulley

E. Arbor Pulley

E

Figure 10. Mower Hitch Components - 33” Decks

A. Hair Pin Clips

B. Rear Lift Arms

C. Front Hitch Rod

D. 4x4 Wood Blocks

C

D

B

A

A

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17

MOWER DECK REMOVAL &

INSTALLATION - 42” DECKS

NOTE: Perform mower removal and installation on a

hard, level surface such as a concrete floor.

Removing the Mower Deck

1. Turn the mower blades OFF, put the ground speed

control levers in START/PARK position, engage the

parking brake, turn the ignition OFF, and wait for all

moving parts to stop.

2. Pivot the front wheels forward.

3. Use the mower belt release lever (D, Figure 13) to

release belt tension. Remove the mower belt (B)

from engine pulley (A).

4. Turn the ignition switch from OFF to RUN without

starting the engine.

5. Use the mower cutting height switch to raise the

mower deck.

6. Place 4x4 wood blocks (D, Figure 12) under the front

and rear lip of the mower deck to securely support it.

7. Use the mower cutting height switch to fully lower the

mower so that is it resting on the 4x4 wood blocks.

8. Turn the ignition switch to OFF and remove the key.

9. Remove the hair pin clip (A) securing the rear mower

lift arm. Separate the lift arm from the mower deck.

Repeat on both sides of the mower.

10. Remove the hitch rod (C) from the hitch bracket.

11. Slide the mower deck out from under the rider.

Installing the Mower Deck

1. Slide the mower deck under the right side of the rider.

Slide the mower forward and hook the front hitch rod

(C, Figure 12) to the front mower deck hooks.

2. Slide the mower deck backwards and connect the

rear lift arms to the mower deck. Secure with hair pin

clips (A).

3. Insert the key into the ignition switch. Turn the switch

from OFF to RUN without starting the engine.

4. Use the cutting height switch to raise the mower until

it is no longer resting on the 4x4 wood blocks (D).

5. Turn the ignition switch OFF and remove the key.

Remove the 4x4 blocks (D).

6. Use the mower belt release lever to release mower

belt tension, and install the belt as shown in Figure

13.

WARNING

After lowering the mower cutting height, engage

parking brake, turn off the mower blades, turn the

ignition switch to STOP, and remove key before

attempting to install or remove the mower.

A

B

C

D

E

Figure 13. Mower Belt Routing - 42” Decks

A. Engine Pulley

B. Mower Drive Belt

C. Idler Pulleys

D. Mower Belt Release Lever

E. Arbor Pulleys

C

E

Figure 12. Mower Hitch Components - 42” Decks

A. Hair Pin Clip

B. 3/8-16 x 3/4 Carriage Bolt & Flange Nut

C. Hitch Rod

D. 4x4 Wood Blocks

C

D

AB

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18

Figure 14. Mower Belt Routing

A. Idler Pulley Arm

B. Mower Belt

C. Engine Drive Pulley

D. Fixed Idler Pulley (2)

E. Arbor Drive Pulley (3)

F. Adjustable Tension Idler Pulley

MOWER DECK REMOVAL &

INSTALLATION - 52” DECKS

NOTE: Perform mower removal and installation on a

hard, level surface such as a concrete floor.

Removing the Mower Deck

1. Turn the mower blades OFF, put the ground speed

control levers in START/PARK position, turn the

ignition OFF, and wait for all moving parts to stop.

2. Pivot the front wheels forward.

3. Insert ratchet into 3/8” (9.5 mm) square in idler pulley

arm (A, Figure 14) and pull to release belt tension.

Remove the mower belt (B) from engine drive pulley

(C).

4. Turn the ignition switch from OFF to RUN without

starting the engine.

5. Use the mower cutting height switch to raise the

mower deck.

6. Place 4x4 wood blocks under the front and rear lip of

the mower deck to securely support it.

7. Use the mower cutting height switch to fully lower the

mower so that is it resting on the 4x4 wood blocks.

8. Turn the ignition switch to OFF and remove the key.

9. Remove the hair pin clip (A, Figure 15) securing the

rear mower lift arm. Separate the lift arm from the

mower deck. Repeat for both sides of mower.

10. Remove hair pin clip (B) securing the front hitch rod

(C). Separate the front hitch rod from the mower

deck. Repeat for both sides of mower.

11. Slide the mower deck out from under the rider.

Installing the Mower Deck

1. Slide the mower deck under the right side of the rider.

Slide the mower forward and hook the front hitch rod

(C, Figure 15) to the front mower deck hooks.

2. Install the front hitch rods and secure with hair pin

clips (B).

3. Slide the mower deck backwards and connect the

rear lift arms to the mower deck. Secure with hair pin

clips (A).

4. Insert the key into the ignition switch. Turn the switch

from OFF to RUN without starting the engine.

5. Use the cutting height switch to raise the mower until

it is no longer resting on the 4x4 wood blocks.

WARNING

After lowering the mower cutting height, engage

parking brake, turn off the mower blades, turn the

ignition switch to STOP, and remove key before

attempting to install or remove the mower.

Figure 15. Mower Hitch Components

A. Hair Pin Clip, Rear

B. Hair Pin Clip, Front

C. Front Hitch Rod

A

C

D

E

E

EDFB

A

B

C

6. Turn the ignition switch OFF and remove the key.

Remove the 4x4 wood blocks.

7. Insert ratchet into 3/8” (9.5 mm) square hole in idler

pulley arm (A, Figure 14) and pull to release belt

tension. Install the mower belt (B) as shown in Figure 14.

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19

MAINTENANCE

MAINTENANCE SCHEDULE

The following schedules should be followed for normal care of your rider and mower.

* More often in hot (over 85° F: 30° C) weather or dusty operating conditions.

** Check the function of the safety system after the unit has been stored for 30 days or longer.

† These services should be performed by your dealer.

RIDER MAINTENANCE, All Models Before

Each Use

Spring

& Fall

8

Hours

25

Hours

100

Hours

200

Hours

Yearly

Clean Debris from Rider and Engine Compartment * •

Clean Debris from Engine Cooling Areas & Air Filter * •

Check Tire Pressure •

Lubricate Rider & Mower * •

Clean Deck & Check/Replace Mower Blades •

Clean Battery & Cables •

Check Rider Safety System ** • • •

Check / Adjust PTO Clutch •

ENGINE MAINTENANCE,

18.5, 21HP Briggs & Stratton

8 Hours or

Daily

25 Hours or

Every

Season

50 Hours or

Every

Season

100 Hours or

Every

Season

Yearly

Check Engine Oil Level * •

Service Air Pre-Cleaner * •

Change Oil * •

Service Air Filter * •

Change Oil & Filter * •

Clean Cooling Fins * •

Replace Air Filter * •

Replace Spark Plug •

Replace Fuel Filter † •

Check Valve Clearance † •

ENGINE MAINTENANCE,

26HP Briggs & Stratton

8 Hours

or Daily

25 Hours

or Every

Season

50 Hours

or Every

Season

100 Hours

or Every

Season

100-400

Hours

Check Engine Oil Level * •

Replace Air Filter * •

Change Oil * •

Change Oil & Filter * •

Clean Cooling Fins * •

Replace Spark Plugs •

Replace Fuel Filter † •

Clean Combustion Chamber •

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Rider Maintenance Items

ACCESSING THE ENGINE

COMPARTMENT

Lift up on the back edge of the seat deck to access the

engine compartment.

CLEAN DEBRIS FROM RIDER AND

ENGINE COMPARTMENT

Service Interval: Before each use.

CAUTION: If debris is not removed from the engine

compartment and other hot surfaces, it creates a fire

hazard. Before starting the unit at the beginning of the

mowing session, remove any grass clippings, dirt,

leaves, or other debris from the unit. Also clean out the

engine compartment.

CLEAN DEBRIS FROM ENGINE

COOLING AREAS AND AIR FILTER

Service Interval: Before each use.

CAUTION: If debris is not removed from the engine

compartment and other hot surfaces, it creates a fire

hazard. Before starting the unit at the beginning of the

mowing session, lift the seat deck and clean any debris

from the intake screen on top of the engine (A, Figure

17), exposed engine cooling fins, and around the air filter

assembly. Also open the air filter cover (B) and remove

any debris that has accumulated in the air filter

compartment.

CHECK TIRE PRESSURE

Service Interval: 25 Hours.

Tire pressure should be checked periodically, and

maintained at the levels shown in Figure 18. Note that

these pressures may differ slightly from the “Max

Inflation” stamped on the side-wall of the tires. The

pressures shown provide proper traction, improve cut

quality, and extend tire life.

Tire Pressure

Front 18-20 psi (1,24-1,38 bar)

Rear 10-12 psi (,69-,83 bar)

Figure 17. Engine Compartment

A. Intake Screen

B. Air Filter Cover

Figure 16. Accessing the Engine Compartment

Figure 18. Tire Pressures

A

B

WARNING

Move the ground speed levers to START/PARK

positions, engage the parking brake, turn the

mower blades OFF, turn the ignition switch OFF,

and wait for all moving parts to stop before

accessing the engine compartment or performing

any maintenance procedures.

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Figure 22. Arbor Lubrication

(3-Blade Model Shown, All Models Similar)

Figure 20. Mower Lubrication - 42” Deck

LUBRICATION

Service Interval: 25 hours.

Lubricate the unit at the locations shown in Figures 19

through 25 as well as the following lubrication points.

Grease:

• front wheel grease fittings

• front wheel bushings

• mower pivots

• mower arbors

Use grease fittings when present.

Not all greases are compatible. Use automotive-type

lithium grease.

Oil:

• hydro linkage

• brake linkage

• mower deck height adjustment linkage

• ground speed control linkage

Generally, all moving metal parts should be oiled where

contact is made with other parts. Keep oil and grease off

belts and pulleys. Remember to wipe fittings and

surfaces clean both before and after lubrication.

Figure 19. Mower Lubrication - 33” Deck

Figure 21. Mower Lubrication - 52” Deck

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22

Figure 23. Lubricating Rider

Figure 24. Lubricating Rider

Figure 25. Lubricating Mower Lift

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23

CLEAN DECK &

CHECK / REPLACE MOWER BLADES

Service Interval: 25 hours or as required.

1. Remove mower deck (see “Mower Deck Removal” in

the OPERATION section).

2. See Figures 26 and 27. Remove blade to inspect it

or to safely access the underside of the mower deck.

Use a block of wood to prevent blade rotation while

loosening the hardware by turning it

counterclockwise.

3. Remove the hardware and blade.

4. Clean the underside of the mower deck.

5. Inspect the blade(s) for nicks or dull edges. Use a file

to sharpen blade to a fine edge. If the blade is

damaged, it must be replaced.

6. Balance the blade as shown in Figure 28. Center the

blade’s hole on a nail lubricated with a drop of oil. A

balanced blade will remain level. If the blade is not

balanced, continue to sharpen the heavy side until it

balances.

7. Reinstall the blade with the lift wings (D, Figure 30; E,

Figure 31) pointing up toward the mower deck as

shown.

8. Reinstall the hardware as noted in Figures 29

through 31. Use a wooden block to prevent blade

rotation while tightening the hardware to the following

torque:

33” Blade - 30-40 ft. lbs. (41-54 Nm)

42” Blade - 80-90 ft. lbs. (108-122 Nm)

52” Blade - 45-55 ft. lbs. (61-75 Nm)

WARNING

For your personal safety, do not handle the sharp

mower blades with bare hands. Careless or

improper handling of blades may result in serious

injury.

WARNING

For your personal safety, blade mounting

hardware must each be installed as per

instructions. Torque blade mounting hardware to

torque noted in instructions.

Figure 28. Balancing The Blade

Workbench

Nail

LOOSEN

Figure 27. Blade Removal - 42” & 52” Deck

Figure 26. Blade Removal - 33” Deck

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Figure 30. Blade Installation - 42” Deck

A. 4x4 Wood Block C. Blade Nut

B. Spring Washers D. Lift Wings

AB

C

D

Figure 29. Blade Installation - 33” Deck

A. Blade

B. Blade Mounting Bolts

C. Lockwashers

D. Hex Nuts

Figure 31. Blade Installation - 52” Deck

A. 4x4 Wood Block

B. Spring Washer

C. Blade Capscrew

D. Lift Wings

B

D

C

A

D

C

C

B

A

A

B

C

D

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25

CLEAN THE BATTERY AND CABLES

Service Interval: 100 Hours

1. Disconnect the cables from the battery, negative

cable first (B, Figure 32).

2. Remove the rubber strap securing the battery, and

remove the battery.

3. Clean the battery and battery compartment with a

solution of baking soda and water.

4. Clean the battery terminals and cable ends with a

wire brush until shiny.

5. Reinstall the battery and secure with the rubber strap.

6. Reattach the battery cables: first attach the positive

cable (see A, Figure 32), then attach the negative

cable (B).

7. Coat the cable ends and battery terminals with

petroleum jelly or non-conducting grease.

NOTE: On models with 33” decks, the battery is mounted

on the right side of the engine compartment.

WARNING

Be careful when handling the battery. Avoid

spilling electrolyte. Keep flames and sparks away

from the battery.

When removing or installing battery cables,

disconnect the negative cable FIRST and reconnect

it LAST. If not done in this order, the positive

terminal can be shorted to the frame by a tool.

Always wear safety glasses and gloves when

handling batteries.

Figure 32. Engine Compartment

A. Positive (+) Battery Cable

B. Negative (-) Battery Cable

CHECK RIDER SAFETY

SYSTEM

Service Interval: Every 100 hours, every spring/fall, and

after storage of 30 days or longer.

This unit is equipped with safety interlock switches.

These safety systems are present for your safety. Do not

attempt to bypass safety switches, and never tamper

with safety devices. Check their operation regularly.

Operational SAFETY Checks

TEST 1 — ENGINE SHOULD NOT CRANK IF:

• Mower blades switch is ON, OR

• Ground speed control levers are not in their

START/PARK positions, OR

• Parking brake lever is in DISENGAGE position.

TEST 2 — ENGINE SHOULD CRANK IF:

• Mower blade switch is OFF, AND

• Ground speed control levers are in their

START/PARK positions, AND

• Parking brake lever is in ENGAGE position.

TEST 3 — ENGINE SHOULD SHUT OFF IF:

• Operator rises off seat with the mower blade switch

ON, OR

• Operator rises off seat with the ground speed levers

in DRIVE positions, OR

• Operator rises off seat with the parking brake in

DISENGAGE position, OR

• Operator moves the left and/or right ground speed

control lever out of its START/PARK position with the

parking brake lever in ENGAGE position.

TEST 4 — BLADE BRAKE CHECK

The mower blades and mower drive belt should come to

a complete stop within five seconds after the mower

blade switch is turned OFF. If mower drive belt does not

stop within five seconds, contact your local authorized

dealer.

NOTE: Once the engine has stopped, the mower blade

switch must be turned OFF, the ground speed control

levers must be locked in their START/PARK positions,

and the parking brake lever must be in the ENGAGE

position in order to start the engine.

WARNING

If the unit does not pass a safety test, do not

operate it. See your local authorized dealer. Under

no circumstance should you attempt to defeat the

purpose of the safety interlock system.

A

B

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26

CHECK / ADJUST PTO CLUTCH

Service Interval: 200 Hours.

The Power Take Off (PTO) clutch drives the mower

blades. The PTO clutch is engaged and disengaged by

the mower blade switch. Check the PTO clutch

adjustment every 200 hours of operation. Also perform

the following procedure if the clutch is slipping, will not

engage, or if a new clutch has been installed.

1. Remove key from ignition switch and disconnect

spark plug wires to prevent the possibility of

accidental starting while the PTO is being adjusted.

2. See Figure 33. Note the position of the 3 adjustment

windows (A) in the side of the brake plate and the

nylock adjustment nuts (B).

3. Insert a .012”-.015” (2,5-4mm) feeler gauge (C)

through each window, positioning the gauge between

the rotor face and the armature face as shown in

Figure 34.

4. Alternately tighten the adjustment nuts (B, Figure 33)

until the rotor face and armature face just contacts

the gauge.

5. Check the windows for an equal amount of tension

when the gauge is inserted and removed, and make

any necessary adjustments by tightening or

loosening the adjustment nuts.

NOTE: The actual air gap between the rotor and

armature may vary even after performing the adjustment

procedure. This is due to dimensional variations on

component parts, and is an acceptable condition.

6. Check the mower blade stopping time. The mower

blades and mower drive belt should come to a

complete stop within five seconds after the electric

PTO switch is turned off. If adjustment does not stop

a mower braking problem, replace the electric PTO

clutch.

Figure 33. PTO Clutch Adjustment

A. Adjustment Window (Qty. 3, one shown)

B. Adjustment Nut

AB

B

B

AB

C

Figure 34. Adjust PTO Clutch

A. Window

B. Adjustment Nut

C. Feeler Gauge

WARNING

To avoid serious injury, perform adjustments only

with engine stopped, key removed and tractor on

level ground.

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27

Figure 35. Recommended Engine Oil -

Briggs & Stratton Models

Use oil classified API Service Class SF,

SG, SH, SJ or better with SAE Viscosity:

10080604020 320-20

3827164-7 0-18-30

˚F

˚C

30 Conventional**

Synthetic 5W-30, 10W-30

5W-30

10W-30

Conventional*

*CAUTION: Air cooled engines run hotter than automotive engines.

The use of non-synthetic multi-viscosity oils (5W-30, 10W-30, etc.)

in temperatures above 40º F (4ºC) will result in higher than normal

oil consumption. When using a multi-viscosity oil, check oil level

more frequently.

**CAUTION: SAE 30 oil, if used below 40º F (4ºC), will result in hard

starting and possible engine bore damage due to inadequate

lubrication.

Engine Maintenance Items

CHECK ENGINE OIL LEVEL

Service Interval: Before each use, and every 8 hours.

1. Turn the engine off, and set the parking brake lever to

ENGAGE.

2. Clean the area around the dip stick (C, Figure 36).

3. Remove the dip stick (C) and clean it with a paper

towel.

4. Insert the dip stick back into the engine. Thread the

cap back into the tube (D).

5. Remove the dip stick and read the oil level. The oil

level should be between the “FULL” and “ADD” marks

(D). If not, add oil according to the oil

recommendations chart (Figure 35).

CHANGE ENGINE OIL

Service Interval: 50 hours or once per season.

NOTE: Change engine oil while the engine is warm. Run

the engine for a few minutes, then shut the engine off

and allow it to cool from hot to warm.

1. Clean the area around the dip stick (C, Figure 36)

and oil drain tube (A).

2. Remove the oil drain plug (A) from the end of the oil

drain tube. Remove the dip stick (C). Allow ample

time for complete drainage.

3. Reinstall the oil drain plug (A) and route the hose

next to the engine.

4. Fill the crankcase with oil. See CHECK ENGINE OIL

LEVEL above.

5. Start and run the engine at SLOW speed for 30

seconds. Stop the engine and recheck the oil level.

CHANGE ENGINE OIL & FILTER

Service Interval: 100 hours or once per season.

NOTE: Change engine oil while the engine is warm. Run

the engine for a few minutes, then shut the engine off

and allow it to cool from hot to warm.

1. Clean the area around the dip stick (C, Figure 36)

and oil drain (A).

2. Remove the oil drain plug (A) and dip stick (C). Allow

ample time for complete drainage.

3. Remove the oil filter (B). Discard the filter.

4. Using a drop of oil on your finger tip, wet the rubber

gasket on the bottom of the new filter.

5. Turn the filter clockwise until the rubber gasket meets

the filter base. Then turn 1/2 to 3/4 turn more.

Figure 36. Oil Change - Briggs & Stratton Models

A. Oil Drain Tube

B. Oil Filter

C. Dip Stick

D. Checking Oil Level

C

6. Reinstall the oil drain plug (A).

7. Fill the crankcase with oil. See CHECK ENGINE OIL

LEVEL above.

8. Start and run the engine at SLOW speed for 30

seconds. Stop the engine and recheck the oil level.

9. Test run the engine to check for leaks. Stop the

engine for 1 minute, then recheck the oil level.

A

D

B

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28

SERVICE AIR FILTER &

PRE-CLEANER - 18.5 & 21 HP

ENGINES

NOTE: Air filter configuration may differ from shown.

Consult engine manual for further information.

Interval: Pre-Cleaner: Every 25 hours or as required.

Air Filter: Every 50 hours or as required.

Replacement Interval: Pre-Cleaner: As required. Air

Filter: Every 200 hours or once per season.

Air Filter Removal & Installation

1. Lift up on the bottom of the latch (A, Figure 37 or 38)

and flip the latch away from the cover.

2. Remove the cover (B). Remove the filter (C, Figure

38) and pre-cleaner (D).

3. Install the pre-cleaner (D) with the mesh side up.

Install the filter (C) as shown.

4. Install the cover (B, Figure 38) making sure the tabs

are inserted into their slots. Secure with the latch (A).

1.

2.

3.

Figure 37. Air Filter Assembly - Briggs & Stratton

Single Cylinder Models

A. Air Filter Latch

B. Air Filter Cover

A

B

A

B

A

B

Figure 38. Air Filter Service - Briggs & Stratton

Single Cylinder Models

A. Air Filter Latch

B. Air Filter Cover

C. Air Filter

D. Pre-Cleaner

AC

D

B

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29

Figure 39. Air Filter Cover

A. Air Filter Cover Screws

A

SERVICE AIR FILTER -

26HP ENGINES

NOTE: Air filter configuration may differ from shown.

Consult engine manual for further information.

Service Interval: Every 25 hours or as required.

1. Loosen the air filter cover screws (A, Figure 39) and

remove the air filter cover.

2. Locate the air filter cartridge (A, Figure 40). Pull up

on the front edge of the cartridge until it snaps out of

place.

3. Inspect the cartridge for dirt or damage.

If the thin foam sleeve surrounding the filter is

damaged, replace the filer. DO NOT oil the foam

sleeve or cartridge. If there is oil of heavy dirt on the

cartridge, replace it.

DO NOT use pressurized air or solvents to clean the

filter cartridge.

Remove any dirt from the air filter housing.

4. Replace the cartridge by aligning the hole of the

cartridge with the air vent (A, Figure 41).

5. Push the cartridge in toward the engine until it snaps

into place.

6. Reinstall the air filter cover and tighten the screws (A,

Figure 39).

Figure 40. Air Filter Removal

A. Filter Cartridge

A

A

Figure 41. Air Filter Installation

A. Filter Cartridge

Not for

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1.

Pre-Cleaner Air Filter

1.

2. 2.

Figure 42. Air Filter Service

REPLACE SPARK PLUG

Service Interval: Yearly

Spark Plug Gap: .030” (.76mm)

1. Stop the engine and allow it to cool.

2. Clean the area around the spark plug.

3. Remove the spark plug.

4. Check the spark plug gap. It should be .030” (see

Figure 43).

5. Reinstall the plug into the cylinder head. Torque the

plug to 180 in. lbs (20 N.m.).

CLEAN COMBUSTION CHAMBER -

BRIGGS & STRATTON MODELS

Service Interval: 100-400 hours

In order to maintain emission compliance, we

recommend that after every 100-400 hours of operation

you have an authorized Briggs & Stratton Service Center

remove combustion deposits from the cylinder, cylinder

head, top of piston, and around the valves.

Figure 43. Spark Plug Gapping

Pre-Cleaner Service

NOTE: Replace a worn or damaged pre-cleaner.

1. Figure 42. Wash the pre-cleaner in liquid detergent

and water.

2. Squeeze the pre-cleaner dry and saturate with

engine oil. Remove all excess oil by squeezing the

pre-cleaner in an absorbent cloth.

Air Filter Service

NOTE: Replace a worn or damaged air filter.

1. Figure 42. If stamped “Washable,” the filter can be

washed with warm water and mild soap.

2. Rinse with tap water with the screen side UP allowing

dirt and debris to filter out.

3. Allow the filter to dry overnight before reinstalling.

30

26hp

18.5 &

21hp

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31

SERVICE & ADJUSTMENTS

GROUND SPEED CONTROL LEVER

ADJUSTMENT

The control levers have three adjustments:

To Adjust Control Lever Height: Pull the levers in

across the operator’s lap to their DRIVE positions.

Loosen the mount bolts (D, Figure 44) and raise or lower

the levers to the desired position. Tighten the mounting

bolts.(D).

To Adjust Control Lever End Gap: The control lever

end gap (C, Figure 45) should be adjusted so that the

levers do not contact each other when placed in DRIVE

positions. Loosen the jam nut (A, Figure 44) and adjust

the length of the carriage bolt (B) so that the levers do

not contact each other. Repeat on the opposite side.

Tighten the jam nut (A) to lock the carriage bolt in

position.

To Adjust Operator Clearance: The space between the

operator and the control levers can be increase by

removing the lower mounting bolt (D, Figure 44), pivoting

the lever forward, and reinstalling the capscrew through

the control lever and forward slot (C). Repeat with the

other ground speed lever.

SPEED BALANCING ADJUSTMENT

If the rider veers to the right or left when the ground

speed control levers are in the maximum forward

position, the top speed of the right lever can be balanced

by turning the adjustment knob (E, Figure 44). Loosen

the jam nut and turn the knob COUNTERCLOCKWISE

to increase speed or CLOCKWISE to decrease speed.

Tighten the jam nut when complete.

CUTTING HEIGHT ADJUSTMENT

To increase the mower cutting height (raise the mower

deck), press the top of the mower cutting height switch

(A, Figure 45) To decrease mower cutting height (lower

the mower deck), press the bottom of the switch. Mower

cutting height range is 3-3/4” to 1-1/2”. The cutting height

gauge indicates the position of the mower deck.. The

cutting height gauge (B) is located on the front of the

rider, just behind the driver’s left leg.

PTO CLUTCH ADJUSTMENT

See CHECK / ADJUST PTO CLUTCH in the

Maintenance Section.

Figure 44. Control Lever Adjustment

A. Jam Nut

B. Carriage Bolt

C. Forward Slot

D. Mount Bolts

E. Knob

A

C

E

B

D

1733458

Low Cut

1

4

3

2

High Cut

Cutting

Height

RAISE

MOWER

LOWER

MOWER

1734276

Figure 45. Cutting Height Adjustment

A. Cutting Height Adjustment Switch

B. Cutting Height Gauge

C. Control Lever End Gap

A

C

B

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BRAKE ADJUSTMENT

1. Stop the unit, turn the ignition OFF, set the ground

speed levers to START/PARK positions, set the

parking brake lever to the ENGAGE position, and wait

for all moving parts to stop.

2. Locate the brake rod (A, Figure 46) and adjustment

nut (B).

3. Measure the parking brake spring. Its compressed

length, with the parking brake lever in the ENGAGE

position, should be 3-1/2” (8.89cm). Adjust the spring

length by turning the adjustment nut (B), if necessary.

WARNING

Figure 46. Brake Adjustment

A. Brake Rod

B. Adjustment Nut

C. Return Spring (Removed for Illustration Only)

D. Return Spring Hole

3-1/2" (8.89cm)

A

B

C

D

Corrosion hazard.

Batteries contain acid. Always keep the

battery upright and do not spill the

electrolyte. Avoid contact with skin and

eyes.

Explosion hazard.

Changing the battery produces explosive

hydrogen gas. Only charge the battery in a

well ventilated area, away from any ignition

source such as a water heater, electric

motor, or a lit cigarette.

Wear Protective Equipment

Always wear gloves and safety glasses

when handling the battery and battery

cables.

BATTERY CHARGING

A dead battery or one too weak to start the engine may

be the result of a defect in the charging system or other

electrical component. If there is any doubt about the

cause of the problem, contact your local dealer. If you

need to replace the battery, follow the steps under

Cleaning the Battery & Cables in the Regular

Maintenance Section.

To charge the battery, follow the instructions provided by

the battery charger manufacturer as well as all warnings

included in the safety rules sections of this book. Charge

the battery until fully charged (until the specific gravity of

the electrolyte is 1.250 or higher and the electrolyte

temperature is at least 60° F). Do not charge at a rate

higher than 10 amps.

ENGINE ADJUSTMENTS

The engine is designed to deliver the correct

performance under all operating conditions. Any

adjustments must be performed by your local authorized

dealer.

32

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33

Figure 47. Measure Blade Tips to Ground

A. Mower Deck

B. Blade Tip

C. Level Ground

A

B

C

Figure 48. Orient Blades Side-to-Side

MOWER DECK LEVELING

ADJUSTMENTS

Side to Side Leveling - 33” Decks

If the cut is uneven, the mower may need leveling.

Unequal or improper tire pressure may also cause an

uneven cut. See CHECK TIRE PRESSURE.

1. With the mower installed, place the rider on a

smooth, level surface such as a concrete floor. Turn

the front wheels straight forward. Turn the engine off,

set the ground speed control levers to START/PARK,

set the parking brake lever to ENGAGE, and wait for

all moving parts to stop.

2. Check for bent blades and replace if necessary.

3. Check the tire pressures. See CHECK TIRE

PRESSURE.

4. Set the cutting height to mid position. Arrange the

mower blade so that it is pointing from side-to-side

(Figure 48).

5. Measure the distance between the tips of the blade

and the ground (Figures 47 & 48). If there is more

than 1/8" (3mm) difference between the

measurements on each side, proceed to step 6. If the

difference is 1/8" (3mm) or less, proceed to Front To

Back Leveling.

6. See Figure 49. Side-to-side leveling is accomplished

using the threaded rods (A, Figure 49) and trunnion

(B) on the right and left rear sides of the mower deck.

Loosen the jam nuts (C) and adjust the nuts up or

down to adjust the mower level. When complete,

tighten the jam nuts against the trunnion to lock the

adjustment in place.

WARNING

Before inspecting or adjusting the mower, turn

the mower blades OFF, turn the ignition switch

OFF, and allow all moving parts to stop. Remove

ignition key, then disconnect the spark plug wire

and fasten it away from the spark plug.

Figure 49. Side-to-Side Adjustment

A. Threaded Rod

B. Trunnion

C. Jam Nuts

B

C

A

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34

Figure 50. Measure Blade Tips to Ground

A. Mower Deck

B. Blade Tip

C. Level Ground

A

B

C

Figure 51. Orient Blades Side-to-Side

MOWER DECK LEVELING

ADJUSTMENTS

Side to Side Leveling - 42” & 52” Decks

If the cut is uneven, the mower may need leveling.

Unequal or improper tire pressure may also cause an

uneven cut. See CHECK TIRE PRESSURE.

1. With the mower installed, place the rider on a

smooth, level surface such as a concrete floor. Turn

the front wheels straight forward. Turn the engine off,

set the ground speed control levers to PARK, set the

parking brake lever to ENGAGE, and wait for all

moving parts to stop.

2. Check for bent blades and replace if necessary.

3. Check the tire pressures. See CHECK TIRE

PRESSURE.

4. Set the cutting height to mid position. Arrange the

mower blades so that they are pointing from side-to-

side (Figure 51).

5. Measure the distance between the tips of the outside

blades and the ground (Figures 50 & 51). If there is

more than 1/8" (3mm) difference between the

measurements on each side, proceed to step 6. If the

difference is 1/8" (3mm) or less, proceed to Front To

Back Leveling.

6. See Figure 52. Side-to-side leveling is accomplished

using the threaded rods (A) and trunnion (B) on the

right and left rear sides of the mower deck. Loosen

the jam nuts (C) and adjust the nuts up or down to

adjust the mower level. When complete, tighten the

jam nuts against the trunnion to lock the adjustment

in place.

WARNING

Before adjusting the mower, turn the mower

blades OFF, turn the ignition switch OFF, remove

the key, and allow all moving parts to stop.

Disconnect the spark plug wire and fasten it away

from the spark plug.

Figure 52. Side-to-Side Adjustment (52” deck shown;

42” deck similar)

A. Threaded Rod

B. Trunnion

C. Jam Nuts

42” Deck

52” Deck

A

C

C

B

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35

Figure 53. Orient Blades Front-to-Back

Front To Back Leveling - 33” Deck

If the cut is uneven, the mower may need leveling.

Unequal or improper tire pressure may also cause an

uneven cut. See CHECK TIRE PRESSURE.

1. Turn the blade front-to-back as shown in Figure 53.

Measure the distance from the ground to front tip of

blade, and from ground to rear tip of blade (Figures

53). Front tip should be 1/8"-1/4" (3-6 mm) higher

than rear tip. If not, proceed to step 2.

2. The front mower hitch rod (A, Figure 54) is used to

adjust front-to-back leveling. To raise or lower the

front of mower deck, adjust the front jam nuts (C) on

both sides of the hitch rod (A) to adjust the deck level.

Figure 54. Front-to-Back Leveling

A. Hitch Rod

B. Jam Nuts (hidden from view)

B

A

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36

Figure 55. Orient Blades Front-to-Back

Front To Back Leveling - 42” & 52” Decks

If the cut is uneven, the mower may need leveling.

Unequal or improper tire pressure may also cause an

uneven cut. See CHECK TIRE PRESSURE.

1. Turn the blades front-to-back as shown in Figure 55.

Measure the distance from the ground to front tip of

center blade, and from ground to rear tips of left hand

and right hand blades (Figure 55). Front tips should

be 1/8"-1/4" (3-6 mm) higher than rear tips. If not,

proceed to step 2.

2. The front mower hitch rod (A, Figure 56) is used to

adjust front-to-back leveling. To raise or lower the

front of mower deck, loosen the two rear jam nuts (B)

on both sides of the hitch rod (A). Adjust the front

jam nuts (C) on both sides of the hitch rod (A) to

adjust the deck level. When adjusted correctly,

tighten the rear jam nuts (B) to lock hitch rod in place.

Figure 56. Front-to-Back Leveling (52” deck shown,

42” deck similar)

A. Hitch Rod

B. Rear Jam Nut

C. Front Jam Nut

42” Deck

52” Deck

A

C

B

A

C

B

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37

MOWER BELT REPLACEMENT

Mower Drive Belt Replacement - 33” Decks

1. Park the rider on a level surface. Disengage the PTO,

turn off the engine, set the ground speed control

levers to START/PARK, and set the parking brake

lever to ENGAGE. Remove the key.

2. Pull the idler pulley (C, Figure 57) to release belt

tension and remove the mower drive belt (B) from the

PTO pulley (A).

3. Remove the belt from the remaining deck pulleys.

Note:

The left rear threaded rod must be removed

from the mower in order to completely remove the

belt. Refer to the section entitled ‘Mower Deck

Removal and Installation’.

4. Install the new belt (B) as shown in Figure 57.

Mower Drive Belt Replacement - 42” Decks

1. Park the rider on a level surface. Disengage the PTO,

turn off the engine, set the ground speed control

levers to START/PARK, and set the parking brake

lever to ENGAGE. Remove the key.

2. Use the idler pulley arm (C, Figure 58) to release belt

tension and remove the mower drive belt (A) from the

PTO pulley (E).

3. Remove the belt from the remaining deck pulleys.

Note: It is not necessary to remove the mower deck.

4. Install the new belt (A) as shown in Figure 58.

WARNING

Before inspecting or servicing the mower, turn the

mower blades OFF, turn the ignition switch OFF,

and allow all moving parts to stop. Remove

ignition key, then disconnect the spark plug wire

and fasten it away from the spark plug.

E

F

F

D

C

B

A

Figure 58. Mower Belt Routing - 42” Decks

A. Mower Drive Belt

B. Right Arbor Pulley

C. Idler Pulley Arm

D. Left Arbor Pulley

E. Engine PTO Pulley

F. Backside Idler Pulley

A

B

C

D

Figure 57. Mower Belt Routing - 33” Decks

A. Engine PTO Pulley

B. Mower Drive Belt

C. Back-Side Idler Pulley

D. Stationary Idler Pulley

E. Arbor Pulley

E

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38

Mower Drive Belt Replacement - 52” Decks

1. Park the rider on a level surface. Disengage the PTO,

turn off the engine and set the ground speed control

levers to PARK. Remove the key.

2. Remove belt covers.

3. Insert ratchet into 3/8” (9.5 mm) square hole in idler

pulley arm (A, Figure 59) and pull to release belt

tension.

4. Remove the mower drive belt (B) from the engine

drive pulley (C).

5. Remove the belt from the remaining deck pulleys.

NOTE: It is not necessary to remove the mower deck

to replace the belt.

6. Install the new mower belt as shown in Figure 59.

Arbor Drive Belt Replacement

Contact your local authorized dealer for replacement of

the arbor drive belt (A, Figure 59).

Figure 59. Mower Belt Routing - 52” Decks

A. Idler Pulley Arm

B. Mower Belt

C. Engine Drive Pulley

D. Fixed Idler Pulley (2)

E. Arbor Drive Pulley (3)

F. Adjustable Tension Idler Pulley

A

C

D

E

E

EDFB

MOWER DECK WASHOUT PORT

(52” decks only)

NOTE: The washout port allows you to connect a typical

garden hose to the trim side (L.H.) of the mower deck to

remove grass and debris from the underside. This

ensures proper and safe operation of the mower.

1. Place the lawn tractor on a smooth level surface.

Figure 60. Mower Deck Washout Port

A. Quick Disconnect

B. Hose

C. Washout Port

WARNING

Before running the mower, make sure the hose is

properly connected and does not come into contact

with the blades. When the mower is running and the

blades are engaged, the person cleaning the mower

deck must be in the operator position, and there are

no bystanders. Failure to follow these precautions

may result in serious injury or death.

2. Attach the quick disconnect (A, Figure 60) to garden

hose (B) and connect to washout port (C) on mower

deck.

3. Turn the mower on and place in the highest cutting

position.

4. Run water to remove grass and debris from

underside of mower deck.

5. Turn the mower off.

6. Remove the garden hose and quick disconnect from

the washout port when completed.

B

C

A

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39

STORAGE

WARNING

Never store the unit (with fuel) in an enclosed,

poorly ventilated structure. Fuel vapors can

travel to an ignition source (such as a furnace,

water heater, etc.) and cause an explosion.

Fuel vapor is also toxic to humans and animals.

STORAGE

Before Storage

Before you store your unit for the off-season, read the

Maintenance and Storage instructions in the Safety

Rules section, then perform the following steps:

• Turn the mower blades OFF, set the ground speed

control levers to START / PARK, set the parking brake

lever to ENGAGE, and remove the key from the

ignition switch.

• Check all fluid levels. Check all maintenance items.

• Battery life will be increased if it is removed, put in a

cool, dry place and fully charged about once a

month. If the battery is left in the unit, disconnect the

negative cable.

It is important to prevent gum deposits from forming in

the essential fuel system parts such as the carburetor,

fuel filter, fuel line, and fuel tank during storage. Also,

alcohol blended fuels (called gasohol or using ethanol or

methanol) can attract moisture which leads to the

separation and formation of acids during storage. Acidic

gas can damage the fuel system of an engine while in

storage.

To avoid engine problems use fuel stabilizer, especially

before storage of 30 days or longer.

After Storage

Before starting the unit after it has been stored:

• Check all fluid levels. Check all maintenance items.

• Fill with FRESH fuel.

• After starting, allow the engine to warm before

operating.

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40

TROUBLESHOOTING

While normal care and regular maintenance will extend

the life of your equipment, prolonged or constant use

may eventually require that service be performed to allow

it to continue operating properly. The troubleshooting

guide below lists the most common problems, their

causes and remedies.

If you prefer, all of these procedures can be performed

by your local authorized dealer.

WARNING

To avoid serious injury, perform maintenance on

the rider or mower only when the engine is

stopped, the ground speed levers are set to

START/PARK, and the parking brake lever is set to

ENGAGE.

Always remove the ignition key, disconnect the

spark plug wire and fasten it away from the plug

before beginning the maintenance, to prevent

accidental starting of the engine.

Troubleshooting the Rider

PROBLEM CAUSE REMEDY

Engine will

not turnover.

Ignition switch not turned fully to START position. Turn ignition switch fully to START position.

Ground speed levers not set to START/PARK. Set to START/PARK.

Mower blade switch in ON position. Place in OFF position.

Parking brake lever in DISENGAGE position. Set to ENGAGE position.

Battery terminals require cleaning. Clean the battery terminals

Battery discharged or dead. Recharge or replace.

Wiring loose or broken; connector separated. Visually check wiring & replace broken or frayed

wires. Tighten loose connections.

Safety interlock switch faulty. Replace. Contact your local authorized dealer.

Solenoid or starter motor faulty. Replace. Contact your local authorized dealer.

Engine will

turnover but

will not start.

Engine is cold; choke not in CLOSED position. Move choke to CLOSED position.

Engine is warm; choke not in OPEN position. Move choke to OPEN position.

Engine flooded. Set choke to OPEN position when cranking engine.

Out of fuel. Allow engine to cool, then refill the fuel tank.

Fuel is old or stale, or water in fuel. Drain fuel & replace with fresh fuel. Contact your

local authorized dealer.

Spark plug(s) faulty, fouled or incorrectly gapped. Clean and gap or replace.

Safety interlock switch faulty. Replace. Contact your local authorized dealer.

Engine starts

hard or runs

poorly.

Air filter plugged Service pre-cleaner and/or replace air filter

element.

Choke not set to CLOSED position when

cranking the engine, OR choke not set to OPEN

after engine starts.

Set choke to CLOSED when cranking. Set choke

to OPEN when engine is running. A warm engine

may not require choking.

Spark plug faulty, fouled, or incorrectly gapped. Clean and gap or replace.

Engine

knocks.

Low oil level. Check/add oil as required.

Using wrong grade oil. See "Change Engine Oil" in the Maintenance

Section.

Excessive oil

consumption.

Engine running too hot. Clean engine cooling fins, blower screen and air

cleaner.

Using wrong weight oil. See "Change Engine Oil" in the Maintenance

Section.

Too much oil in crankcase. Drain excess oil.

Engine

exhaust is

black.

Dirty air filter or pre-cleaner, or both. Service or replace as required. See Maintenance

Section.

Choke set to CLOSED when engine is running. Set choke to OPEN as soon as engine starts.

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Troubleshooting the Mower

PROBLEM CAUSE REMEDY

Mower cutting

height does not

adjust.

Cutting height motor screw dirty or requires

lube.

Thoroughly clean and lubricate cutting height motor

screw.

Cutting height linkage disconnected. Check that mower linkage is connected.

Mower cut is

uneven.

Rider tires not inflated equally or properly. See Maintenance Section.

Mower not leveled properly. See "Mower Leveling" in Service & Adjustments.

Mower cut is

rough looking.

Engine speed too slow. Always set engine speed to FAST when mowing.

Ground speed too fast. Decrease ground speed.

Blades are dull. Sharpen or replace blades. See Maintenance

Section.

Mower drive belt slipping because it is oily or

worn.

Clean or replace belt as necessary.

Blades not properly fastened to arbors. See "Check/Replace Mower Blades" in Maintenance

Section.

Engine stalls

easily with

mower engaged.

Engine speed too slow. Always set engine speed to FAST when mowing.

Ground speed too fast. Decrease Ground Speed.

Cutting height set too low. Cut tall grass at maximum cutting height during first

pass.

Underside of mower deck dirty. Remove mower deck and clean underside.

Discharge chute jamming with cut grass. Cut grass with discharge pointing toward previously

cut area.

Excessive

mower

vibration.

Blade mounting nuts are loose. Torque as per instructions. See Maintenance

Section.

Mower blades, arbors, or pulleys are bent. Check and replace as necessary.

Mower blades are out of balance. Replace or balance blades. See Maintenance

Section.

Belt installed incorrectly. Reinstall correctly.

Mower drive belt

slips or fails to

drive.

Idler pulley spring broken or not properly

attached.

Repair or replace as needed.

Mower drive belt broken. Replace drive belt.

PTO clutch out of adjustment. Adjust PTO clutch. See Maintenance Section.

Engine runs, but

rider will not

drive.

Transmission release levers in PUSH

positions.

Move levers to DRIVE positions.

Drive belt slips. Clean or replace belt as necessary.

Belt is broken. Replace drive belt. Contact your local authorized dealer.

Parking brake is not fully released. Contact your local authorized dealer.

Parking brake

will not hold.

Parking brake is incorrectly adjusted. See Service & Adjustments Section.

Rider steers or

handles poorly.

Improper tire inflation. See Maintenance Section.

Steering linkage is loose. Check and tighten any loose connections.

Rider tracks to

one side.

Ground speed adjustment knobs not

adjusted.

See SPEED BALANCING ADJUSTMENT in Service &

Adjustments section.

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SPECIFICATIONS

ENGINE (18.5HP):

Make Briggs & Stratton

Model ELS

Horsepower 18.5 @ 3600 rpm

Displacement 30.59 Cu. in (500cc)

ENGINE (21HP):

Make Briggs & Stratton

Model ELS

Horsepower 21 @ 3600 rpm

Displacement 30.59 Cu. in (500cc)

ENGINE (26HP):

Make Briggs & Stratton

Model ELS

Horsepower 26 @ 3600 rpm

Displacement 44.2 Cu. in (725cc)

CHASSIS:

Fuel Tank Cap. Capacity: 4.00 Gallons (15,14 L)

Rear Wheels Tire Size: 18 x 8.5 -8

Inflation Pressure: 10-12 psi (,69-,83 bar)

Front Wheels Tire Size: 11 x 4-5

Inflation Press.: 18-20 psi (1,24-1,30 bar)

TRANSMISSION:

Type Hydro-Gear EZT ZC-AHBB-2A7B-1DPX

Hydraulic Fluid 20w 50 Premium Engine Oil

Continuous Torque 115 ft. lbs.

Output

Maximum Weight 340 lbs

per Axle

NOTE: Specifications are correct at time of printing and are subject to change without notice.

The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive Engineers)

code J1940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained and corrected in

accordance with SAE J1995 (Revision 2002-05). Torque values are derived at 3060 RPM; horsepower values are derived at 3600

RPM. Actual gross engine power will be lower and is affected by, among other things, ambient operating conditions and engine-to-

engine variability. Given both the wide array of products on which engines are placed and the variety of environmental issues

applicable to operating the equipment, the gas engine will not develop the rated gross power when used in a given piece of power

equipment (actual "on-site" or net horsepower). This difference is due to a variety of factors including, but not limited to,

accessories (air cleaner, exhaust, charging, cooling, carburetor, fuel pump, etc.), application limitations, ambient operating

conditions (temperature, humidity, altitude), and engine-to-engine variability. Due to manufacturing and capacity limitations, Briggs

& Stratton may substitute an engine of higher rated power for this Series engine.

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SERVICE ITEMS

Replacement Parts

Replacement parts are available from your authorized

dealer. Always use genuine Simplicity or Snapper

Service Parts.

Technical Manuals

Additional copies of this manual are available, as well as

fully illustrated parts lists. These manuals show all of the

product’s components in exploded views (3D illustrations

which show the relationship of parts and how they go

together) as well as part numbers and quantities used.

Important assembly notes and torque values are also

included.

For applicable manuals currently available for your

model, contact our Customer Publications Department at

877-249-6647. Have the information listed in the box at

left available when phoning in your request. Technical

manuals can be downloaded from

www.simplicitymfg.com

www.snapper.com

Engine Oil

Touch-Up Paint

Grease Gun Kit

8 oz. Grease Tube

Tire Sealant

Degrimer/Degreaser

Gas Stabilizer

Maintenance Items

Many convenient and helpful service and maintenance

items are available from you authorized dealer. Some of

these items include:

Model:

Mfg. No.:

Your Name:

Address:

City, State, Zip:

Visa/Mastercard No.:

Card Expiration Date:

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44

NOTES

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NOTES

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Lawn Care

& Mowing Information

LC-1

HOW AND WHEN TO

WATER, FERTILIZE &

AERATE

Most lawns are watered too often,

but with too little water. However

too much water can allow develop-

ment of diseases with your lawn. It is

best to water the lawn only when

necessary, and then to water it

slowly, evenly, and deeply—imitat-

ing a slow, soaking rain.

WHEN TO WATER YOUR LAWN

When the lawn begins to wilt, the grass’s color dulls, or

footprints stay compressed for more than a few seconds,

the lawn is beginning to dry out, and needs additional

moisture. The best time to water is early morning to allow

the water to soak deeply into the lawn and reduce the

amount that evaporates in the hot afternoon sun.

HOW TO WATER YOUR LAWN

The best method of watering a lawn

is to imitate a slow, soaking rain,

applying about 1 inch of water.

HOW TO FERTILIZE YOUR LAWN

Fertilizing with a slow-release fertiliz-

er provides missing nutrients which

help create slow, even growth.

Remember that over-fertilizing can

cause harm, and that most fertilizing

should be applied in the spring so

that it will release into the lawn

through the summer.

AERATING YOUR LAWN

Consider aerating your lawn in spring. Using an aerator

to remove cores of soil from the lawn increases the

speed of clipping decomposition and encourages deeper

root growth by opening up the soil and permitting greater

movement of water, fertilizer and air.

TP 600-2136-03-UV-SMA

HOW HIGH TO MOW THE GRASS

Cutting the grass too short causes weak, thin

grass plants, which are easily damaged by dry

periods and pests.

Letting grass grow a bit longer—especially when it

is hot and dry—reduces heat build-up, preserves

needed moisture and protects the grass from heat

damage and other problems.

Cutting off too much at one time shocks the plant’s

growth system and weakens the grass plants. A

good rule of thumb is the 1/3 rule: to cut no

more than one third of the grass height, and

never more than 1 inch at a time.

Cut

Here On

Second

Pass

Cut Here On

First Pass

Optimal

cutting point

at less than

1/3 from top

of grass blade

Tall Grass Requires Incremental Cutting

For extremely tall grass, set the cutting height at maxi-

mum for the first pass, and then reset it to the desired

height and mow a second or third time.

Don’t cover the grass surface with a heavy layer of

clippings.

Cutting down to this

area contributes to

thatch problems

Cut less than

1/3

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LC-2

Lawn Care & Mowing Information

WHEN AND HOW OFTEN TO MOW

The time of day and condition of the grass greatly affect the results you’ll

get when mowing. For the best results, follow these guidelines:

GMow when the grass is between 3”-4” (7,5-10 cm) high.

GMow with sharp blades. Short clippings of grass one inch or shorter

decompose more quickly than longer blades. Sharp mower blades cut

grass cleanly and efficiently, preventing frayed edges which harm the

grass.

GMow at time of day when the grass is cool and dry. Late afternoon or

early evening often provide these ideal mowing conditions.

GAvoid mowing after rain or even heavy dew, and never mulch when the

grass is wet (moist grass does not mulch well, and clumps beneath the

mower deck).

Note: Always operate the engine at full throttle when mowing.

PROPER MOWING SPEED

ENGINE SPEED & GROUND SPEED

Always operate the engine at full throttle when mowing.

If you hear the engine slowing down, you are mowing too

fast—maintaining a slower ground speed will improve the

cutting efficiency of the blades and prevents many com-

mon cutting problems.

Select an appropriate ground speed for the thickness

and height of the grass you are cutting (3rd gear or slow-

er for manual gear models, or mid-range or slower for

hydro models). If you hear the engine slowing down you

are mowing too fast, use a slower ground speed.

HOW MUCH GRASS TO CUT OFF

Mow when the grass is 3”-4” inches (7,5-10cm) long. Do

not cut off more that 1” (2.5cm) of grass in a single pass.

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MANUFACTURING, INC.

500 N Spring Street / PO Box 997

Port Washington, WI 53074-0997

www.SimplicityMfg.com

Briggs & Stratton Yard Power Products Group

Copyright © 2009 Briggs & Stratton Power Products Group, LLC

Milwaukee, WI USA. All Rights Reserved

PRODUCTS, INC.

535 Macon Street

McDonough, GA 30253

www.Snapper.com

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