Troy Bilt Autodrive 604 Users Manual 770 10187

604 to the manual 104a8bd9-c7de-49d1-8392-57ee2211f4ff

Troybilt 604 Garden Tractor

: Troy-Bilt Troy-Bilt-Autodrive-604-Users-Manual-349762 troy-bilt-autodrive-604-users-manual-349762 troy-bilt pdf

Open the PDF directly: View PDF .
Page Count: 40

OPERATOR’S MANUAL

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722

PRINTED IN U.S.A. FORM NO. 770-10187

Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-

covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting

applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.

In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have

similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized

service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.

(12/98)

AutoDrive™ Lawn Tractor

Model 604

2

SECTION 1: TABLE OF CONTENTS

PAGE

FINDING YOUR MODEL NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

CALLING CUSTOMER SUPPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

IMPORTANT SAFE OPERATION PRACTICES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SAFETY LABLES FOUND ON YOUR UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

SLOPE GAUGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

ATTACHMENTS & ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

TRACTOR SET-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

WARRANY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover

SECTION 2: FINDING YOUR MODEL NUMBER

This Operator’s Manual is an important part of your new rider. It will help you assemble, prepare and maintain

your rider. Please read and understand what it says.

Before you start to prepare your tractor for its first use, please locate the model plate and copy the information

from it in this Operator’s Manual. The information on the model plate is very important if you need help from

your dealer or the MTD customer support department.

• Every tractor has a model plate. You can locate it by lifting the seat and looking at the seat bracket.

• An example of what the model plate will look like is shown below.

SECTION 3: CALLING CUSTOMER SUPPORT

•LOCATE YOUR MODEL NUMBER AND SERIAL NUMBER — Record this information in the space

provided. To find your unit’s specific model number and serial number, see SECTION 2: FINDING

YOUR MODEL NUMBER.

• If you are having difficulty assembling this product or if you have any questions regarding the controls,

operation or maintenance of this unit, please call the Customer Support Department.

• Customer Support can be reached by dialing: 1- (330) 220-4MTD

(4683)

or

1- (800)-800-7310

• Please have your model number and serial number ready when you call.

• Although both numbers are important, you will be asked to enter only your

serial

number before your

call can be processed.

XXX-X-XXX-X-XXX XXXXXXXXXXX

This is where your model number will be.

This is where your serial number will be.

Copy the model number here:

Copy the serial number here:

MTD PRODUCTS INC

CLEVELAND, OHIO 44136

P.O. BOX 368022

3

SECTION 4: IMPORTANT SAFE OPERATION PRACTICES

WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF

NOT FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF

YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL

BEFORE ATTEMPTING TO OPERATE YOUR LAWN MOWER. FAILURE TO COMPLY WITH

THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL,

HEED ITS WARNING.

WARNING: The Engine Exhaust from this product contains chemicals known to

the State of California to cause cancer, birth defects or other reproductive harm.

DANGER: Your lawn mower was built to be operated according to the rules for safe operation in

this manual. As with any type of power equipment, carelessness or error on the part of the operator

can result in serious injury. This lawn mower is capable of amputating hands and feet and throwing

objects. Failure to observe the following safety instructions could result in serious injury or death.

1. GENERAL OPERATION

• Read, understand, and follow all instructions in the

operator’s manual and on the machine before

starting. Keep this manual in a safe place for future

and regular reference and for ordering replacement

parts.

• Only allow responsible individuals familiar with the

instructions to operate the machine. Know controls

and how to stop the machine quickly.

• Do not put hands or feet under cutting deck or near

rotating parts.

• Clear the area of objects such as rocks, toys, wire,

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

blade. A small object may have been overlooked

and could be accidentally thrown by the mower in

any direction and cause injury to you or a

bystander. To help avoid a thrown objects injury,

keep children, bystanders and helpers at least 75

feet from the mower while it is in operation. Always

wear safety glasses or safety goggles during

operation or while performing an adjustment or

repair, to protect eyes from foreign objects. Stop

the blade(s) when crossing gravel drives, walks or

roads.

• Be sure the area is clear of other people before

mowing. Stop machine if anyone enters the area.

• Never carry passengers.

• Disengage blade(s) before shifting into reverse and

backing up. Always look down and behind before

and while backing.

• Be aware of the mower and attachment discharge

direction and do not point it at anyone. Do not

operate the mower without either the entire grass

catcher or the chute guard in place.

• Slow down before turning. Operate the machine

smoothly. Avoid erratic operation and excessive

speed.

• Never leave a running machine unattended. Always

turn off blade(s), place transmission in neutral, set

park brake, stop engine and remove key before

dismounting.

• Turn off blade(s) when not mowing.

• Stop engine and wait until blade(s) comes to a

complete stop before (a) removing grass catcher or

unclogging chute, or (b) making any repairs,

adjusting or removing any grass or debris.

• Mow only in daylight or good artificial light.

• Do not operate the machine while under the

influence of alcohol or drugs.

• Watch for traffic when operating near or crossing

roadways.

• Use extra care when loading or unloading the

machine into a trailer or truck. This unit should not

be driven up or down a ramp onto a trailer or truck

under power, because the unit could tip over,

causing serious personal injury. The unit must be

pushed manually on a ramp to load or unload

properly.

• Never make a cutting height adjustment while

engine is running if operator must dismount to do

so.

• Wear sturdy, rough-soled work shoes and close-

fitting slacks and shirts. Do not wear loose fitting

clothes or jewelry. They can be caught in moving

parts. Never operate a unit in bare feet, sandals, or

sneakers.

• Check overhead clearance carefully before driving

under power lines, wires, bridges or low hanging

tree branches, before entering or leaving buildings,

or in any other situation where the operator may be

struck or pulled from the unit, which could result in

serious injury.

4

• Disengage all attachment clutches, thoroughly

depress the brake pedal, and shift into neutral

before attempting to start engine.

• Your mower is designed to cut normal residential

grass of a height no more than 10". Do not attempt

to mow through unusually tall, dry grass (e.g.,

pasture) or piles of dry leaves. Debris may build up

on the mower deck or contact the engine exhaust

presenting a potential fire hazard.

2. SLOPE OPERATION

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

over accidents which can result in severe injury or death.

All slopes require extra caution. If you cannot back up the

slope or if you feel uneasy on it, do not mow it.

For your safety, use the slope gauge included as part of this

manual to measure slopes before operating this unit on a

sloped or hilly area. If the slope is greater than 15° as

shown on the slope gauge, do not operate this unit on that

area or serious injury could result.

DO:

• Mow up and down slopes, not across.

• Remove obstacles such as rocks, limbs, etc.

• Watch for holes, ruts or bumps. Uneven terrain

could overturn the machine. Tall grass can hide

obstacles.

• Use slow speed. Always keep machine in gear

when going down slopes to take advantage of

engine braking action.

• Follow the manufacturer’s recommendations for

wheel weights or counterweights to improve

stability.

• Use extra care with grass catchers or other

attachments. These can change the stability of the

machine.

• Keep all movement on the slopes slow and

gradual. Do not make sudden changes in speed or

direction. Rapid engagement or braking could

cause the front of the machine to lift and rapidly flip

over backwards which could cause serious injury.

• Avoid starting or stopping on a slope. If tires lose

traction, disengage the blade(s) and proceed slowly

straight down the slope.

DO NOT:

• Do not turn on slopes unless necessary; then, turn

slowly and gradually downhill, if possible.

• 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.

• Do not mow on wet grass. Reduced traction could

cause sliding.

• Do not try to stabilize the machine by putting your

foot on the ground.

• Do not use grass catcher on steep slopes.

3. CHILDREN

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

presence of children. Children are often attracted to the

machine and the mowing activity. Never assume that chil-

dren will remain where you last saw them.

• Keep children out of the mowing area and in

watchful care of an adult other than the operator.

• Be alert and turn machine off if children enter the

area.

• Before and when backing, look behind and down

for small children.

• Never carry children, even with the blades off. They

may fall off and be seriously injured or interfere with

the safe machine operation.

• Never allow children under 14 years old to operate

the machine. Children 14 years and over should

only operate machine under close parental

supervision and proper instruction.

• Remove key when machine is unattended to

prevent unauthorized operation.

• Use extra care when approaching blind corners,

shrubs, trees or other objects that may obscure

your vision of a child or other hazard.

4. SERVICE

• Use extreme care in handling gasoline and other

fuels. They are extremely flammable and the

vapors are explosive.

• Use only an approved container.

• Never remove fuel cap or add fuel with the engine

running. Allow engine to cool at least two minutes

before refueling.

• Replace fuel cap securely and wipe off any spilled

fuel before starting the engine as it may cause a

fire or explosion.

• Extinguish all cigarettes, cigars, pipes and other

sources of ignition.

• Never refuel the machine indoors because fuel

vapors will accumulate in the area.

• Never store the fuel container or machine inside

where there is an open flame or spark, such as a

gas hot water heater, space heater or furnace.

• Never run a machine inside a closed area.

• To reduce fire hazard, keep the machine free of

grass, leaves or other debris build-up. Clean up oil

or fuel spillage. Allow machine to cool at least 5

minutes before storing.

• Before cleaning, repairing or inspecting, make

certain the blade and all moving parts have

stopped. Disconnect the spark plug wire, and keep

the wire away from the spark plug to prevent

accidental starting.

• Check the blade and engine mounting bolts at

frequent intervals for proper tightness. Also,

visually inspect blade for damage (e.g., excessive

wear, bent, cracked). Replace with blade which

meets original equipment specifications.

5

• Keep all nuts, bolts and screws tight to be sure the

equipment is in safe working condition.

• Never tamper with safety devices. Check their

proper operation regularly. Use all guards as

instructed in this manual.

• After striking a foreign object, stop the engine,

remove the wire from the spark plug and thoroughly

inspect the mower for any damage. Repair the

damage before restarting and operating the mower.

• Grass catcher components are subject to wear,

damage and deterioration, which could expose

moving parts or allow objects to be thrown. For

your safety protection, frequently check

components and replace with manufacturer’s

recommended parts when necessary.

• Mower blades are sharp and can cut. Wrap the

blade(s) or wear gloves and use extra caution

when servicing blade(s).

• Check brake operation frequently. Adjust and

service as required.

• Muffler, engine and belt guards become hot during

operation and can cause a burn. Allow to cool

down before touching.

• Do not change the engine governor settings or

overspeed the engine. Excessive engine speeds

are dangerous.

• Observe proper disposal laws and regulations.

Improper disposal of fluids and materials can harm

the environment and the ecology.

• Prior to disposal, determine the proper method to

dispose of waste from your local Environmental

Protection Agency. Recycling centers are

established to properly dispose of materials in an

environmentally safe fashion.

• Use proper containers when draining fluids. Do not

use food or beverage containers that may mislead

someone into drinking from them. Properly dispose

of the containers immediately following the draining

of fluids.

• DO NOT pour oil or other fluids into the ground,

down a drain or into a stream, pond, lake or other

body of water. Observe Environmental Protection

Agency regulations when disposing of oil, fuel,

coolant, brake fluid, filters, batteries, tires and other

harmful waste.

WARNING - YOUR RESPONSIBILITY: Restrict the use of this power machine to persons

who read, understand and follow the warnings and instructions in this manual and on the machine.

Figure 1 Safety Labels found on your unit

• GO UP AND DOWN SLOPES, NOT ACROSS.

AVOID SUDDEN TURNS.

• DO NOT OPERATE THE UNIT WHERE IT

COULD SLIP OR TIP.

• IF MACHINE STOPS GOING UPHILL, STOP

BLADE(S) AND BACK DOWNHILL SLOWLY.

• DO NOT MOW WHEN CHILDREN OR OTHERS

ARE AROUND.

• NEVER CARRY CHILDREN.

• LOOK DOWN & BEHIND BEFORE AND WHILE

BACKING.

• KEEP SAFETY DEVICES (GUARDS, SHIELDS,

AND SWITCHES, ETC.) IN PLACE AND WORKING.

• REMOVE OBJECTS THAT COULD BE

THROWN BY THE BLADE(S).

• KNOW LOCATION AND FUNCTION OF ALL

CONTROLS.

• BE SURE BLADE(S) AND ENGINE ARE STOPPED

BEFORE PLACING HANDS OR FEET NEAR BLADE(S).

• BEFORE LEAVING OPERATOR'S POSITION,

DISENGAGE BLADE(S), PLACE THE SHIFT

LEVER IN NEUTRAL, ENGAGE PARKING BRAKE,

SHUT OFF AND REMOVE KEY.

WARNING

TO AVOID SERIOUS INJURY OR DEATH

READ OPERATOR'S MANUAL

6

Slope Gauge

15°

SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE

A POWER POLE

A CORNER OF A BUILDING

OR A FENCE POST

FOLD ON DOTTED LINE, REPRESENTING A 15° SLOPE

USE THIS PAGE AS A GUIDE TO DETERMINE SLOPES WHERE YOU MAY NOT OPERATE SAFELY.

Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet). A riding mower

could overturn and cause serious injury. If operating a walk-behind mower on such a slope, it is extremely difficult to maintain

your footing and you could slip, resulting in serious injury.

Operate RIDING mowers up and down slopes, never across the face of slopes.

WARNING

7

SECTION 5: ATTACHMENTS & ACCESSORIES

SECTION 6: TRACTOR SET-UP

ATTACHING THE BATTERY CABLES

NOTE:

The positive battery terminal is marked

Pos. (+). The negative battery terminal is marked

Neg. (–).

• The positive cable (heavy red wire) is secured

to the positive battery terminal (+) with a hex

bolt and hex nut at the factory. Make certain

that the rubber boot covers the terminal to

help protect it from corrosion.

• Remove the hex bolt and wing nut from the

negative cable. Attach the negative cable

(heavy black wire) to the negative battery

terminal (–) with the bolt and wing nut.

• Place the hold-down strap in position over the

battery to secure it in place. See Figure 2.

Figure 2

NOTE:

If battery is put into service after date

shown on top of battery, charge for minimum of one

hour at 6-10 amps. Refer to the

MAINTENANCE

section of this manual for more detailed instructions

regarding proper battery charging procedure.

GAS AND OIL FILL-UP

Service the engine with gasoline and oil as

instructed in the separate engine manual packed

with your tractor. Read instructions carefully.

IMPORTANT:

Your tractor is shipped with oil;

however, you MUST check the oil level before operat-

ing. Be careful not to overfill. Overfilling with oil may

cause the engine to smoke. This will result in poor

engine performance and could cause permanent

engine damage.

The gasoline tank is located under the hood and has

a capacity of approximately two gallons. Do not

overfill. WARNING: Gasoline produces noxious

fumes. Never fill fuel tank indoors. Always

fill the fuel tank in a well ventilated area to

avoid inhalation of gasoline fumes.

WARNING: Never smoke while fueling

your tractor or fill the fuel tank while engine

is running or while engine is hot.

WARNING: Do not fill closer than 1/2

inch from the top of the fuel tank to prevent

spills and to allow for fuel expansion. If

gasoline is accidently spilled, move tractor

away from area of spill. Avoid creating any

source of ignition until gasoline vapors

have disappeared.

INSTALLING THE MULCH KIT

On units equipped with a 46-inch deck, follow the

instructions included with the mulch kit which is

packaged separately within the crate.

On units equipped with a 42-inch deck, the mulch kit

is installed at the factory. To remove it, unfasten the

wing knob found on the top of the cutting deck and

carefully pull the mulch plug out from the discharge

area of the deck.

MODEL NUMBER DESCRIPTION

OEM-190-601 FastAttach™ Twin Bagger Grass Collector (For 42-inch Decks Only)

OEM-190-602 FastAttach™ Twin Bagger Grass Collector (For 46-inch Decks Only, includes a set of blades)

OEM-190-112 Mulch Kit (For 42-inch Decks Only)

OEM-190-118 Mulch Kit (For 46-inch Decks Only, includes a set of blades)

OEM-190-603 FastAttach™ Front Bumper Kit

OEM-190-604 TracPac™ Storage Container (mounts on rear of tractor)

OEM-190-822 FastAttach™ 46-inch Front Dozer Blade

OEM-190-823 42-inch Two-stage Snowthrower

Hold-down Strap

Positive

Terminal

Negative

Terminal Bolt

Wing

Nut

Rubber

Boot

Battery

Tray

8

SECTION 7: CONTROLS

Figure 3

A Ignition Switch H Brake Pedal

B Throttle Control Lever I Parking Brake Button

C Choke Control (if so equipped) J Shift Lever

D Indicator Monitor/Hour Meter K Seat Adjustment Lever

E Lift Lever L Cup Holder

F PTO (Power Take-Off) Lever M Cruise Control Button

G AutoDrive™ Pedal

A

B

D

C

F

M

I

J

L

E

G

H

K

NOTE: Steering Wheel not shown for clarity.

P

1/10

P

+

NOTE:

Any reference in this manual to the RIGHT or LEFT side of the tractor is observed from operator’s position.

9

IGNITION SWITCH

To start the engine, insert key into the ignition switch

and turn clockwise to the START position. Release

key to the ON position once engine has fired. See

Figure 4. Refer to STARTING THE ENGINE in the

OPERATION section of this manual for detailed

starting instructions. The ignition switch is also used

to operate the headlights. Refer to OPERATING

THE HEADLIGHTS in the OPERATION section of

this manual for detailed instructions

WARNING: Remove the key from the

tractor when the tractor is not in use to

prevent accidental starting.

Figure 4

THROTTLE CONTROL LEVER

The throttle lever is located on the right side of the

tractor’s dash panel. This lever controls the speed of

the engine, and on some units the choke control

also. When set in a given position, the throttle will

maintain a uniform engine speed. See Figure 5.

Figure 5

IMPORTANT:

When using PTO operated

equipment such as the cutting deck or other

attachments, always operate the tractor with the

throttle lever in the FAST (rabbit) position.

CHOKE CONTROL

On some units, moving the

throttle lever all the way

forward activates the engine’s

choke control. On all other

units, the choke control can be

found on the left side of the

dash panel and is activated by

pulling the knob outward. Activating the choke

control closes the choke plate on the carburetor and

aids in starting the engine. Refer to STARTING THE

ENGINE in the OPERATION section of this manual

for detailed starting instructions.

INDICATOR MONITOR / HOUR METER

Your tractor is equipped with four indicator lights and

an hour meter located on the left side of the dash

panel. See Figure 6.

Figure 6

If a light illuminates when attempting to start the unit,

proceed as follows:

BRAKE — Depress the brake pedal.

PTO — Move PTO lever into the disengaged

(OFF) position.

OIL— Check the crankcase oil level, and add

oil as required.

The BATTERY indicator light will illuminate any time

the ignition key is the On position and the engine is

not running. If it illuminate’s while the engine is

running, it indicates that the battery is in need of a

charge. Refer to the MAINTENANCE section of this

manual for the proper battery charging procedure.

The hour meter operates whenever the ignition key

is in the On or On/Lights position and records the

actual hours of tractor operation.

Off

On/Lights

On

Start

Fast

Position

Slow

Position

Choke

Position

Fast

Position

Slow

Position

Throttle

Symbol

Throttle

Symbol

1/10

P

+

Battery

PTO

Oil

Brake

Hour

Meter

10

LIFT LEVER

The lift lever is used to change the operating position

(height) of the cutting deck. To operate, move the

lever to the left, then place in the notch best suited

for your application.

PTO (POWER TAKE-OFF) LEVER

The PTO lever is located on the left side of the

dashboard next to the steering wheel. Move the PTO

lever forward to engage the power to the cutting

deck or other attachments; move the PTO lever

backward (toward the rear of the tractor) to

disengage the power to the attachments.

NOTE: T

he PTO lever must be in the disengaged

(OFF) position when starting the engine, when

shifting into reverse and if the operator leaves the

seat.

AUTODRIVE™ PEDAL

The AutoDrive™ pedal is located below the brake

pedal on the right front side of the tractor along the

running board. Depress the AutoDrive™ pedal with

your right foot when the tractor shift lever is in either

forward or reverse to cause the tractor to move.

Ground speed is also controlled with the AutoDrive™

pedal. The further down the pedal is depressed, the

faster the tractor will travel. The pedal will return to

its original position when it’s not depressed.

IMPORTANT:

Always set the parking brake

when leaving the tractor unattended.

BRAKE PEDAL

The brake pedal is located on the right front side of

the tractor above the AutoDrive™ pedal along the

running board. The brake pedal can be used for

sudden stops or setting the parking brake.

NOTE:

The brake pedal must be fully depressed to

activate the safety interlock switch when starting the

tractor

.

PARKING BRAKE BUTTON

To set the parking brake, fully depress

the brake pedal and push the parking

brake button in. Hold the button in

while taking your foot off the brake

pedal. Both the parking button and

the brake pedal will then stay

depressed. To release the parking

brake, depress the brake pedal

slightly. The parking brake button will

then return to its original position.

NOTE:

The parking brake must be set if the

operator leaves the seat with the engine running or

the engine will automatically shut off.

IMPORTANT:

Always set the parking brake

when leaving the tractor unattended.

SHIFT LEVER

The shift lever is located

on the left side of the

fender and has three

positions, FORWARD,

NEUTRAL and REVERSE.

The brake pedal must be

depressed and the tractor

must not be in motion

when the moving shift

lever.

IMPORTANT:

Never

force the shift lever. Doing

so may result in serious

damage to the tractor’s

transmission.

BRAKE

P

N

F

R

Shift

Knob

11

CRUISE CONTROL BUTTON

The cruise control button is located on

the tractor dash panel to the left of the

ignition switch. Push the cruise control

button while traveling forward at a

desired speed. While holding the

button in, release pressure from the

AutoDrive™ pedal. This will engage the

cruise control and allow the tractor to

remain at that speed without applying

pressure to the AutoDrive™ pedal.

Depress the brake pedal or the

AutoDrive™ pedal to deactivate cruise

control. Refer to the OPERATION section of this

manual for detailed instructions regarding the cruise

control feature.

SEAT ADJUSTMENT LEVER

To adjust the seat forward or backward, slide the

seat adjustment lever to the left and reposition the

seat to the desired position. Once a comfortable

position is found, release the seat adjustment lever

to lock the seat in place. Refer to the

ADJUSTMENTS section of this manual for more

detailed instructions.

CUP HOLDER

The tractor’s cup holder is located on the fender to

the left of the seat, just to the rear of the shift lever.

WARNING: Never operate the tractor

under the influence of alcoholic beverages

or drugs of any kind. Doing so can result in

serious personal injury or death.

SECTION 8: OPERATION

SAFETY INTERLOCK SWITCHES

This tractor is equipped with a safety interlock

system for the protection of the operator. If the

interlock system should ever malfunction, do not

operate the tractor. Contact an authorized

MTD

Service Dealer in your area. The safety interlock

system prevents the engine from cranking or starting

unless the brake pedal is fully depressed, and the

PTO lever is in the disengaged (OFF) position.

• The safety interlock system will automatically

shut off the engine if the operator leaves the

seat before engaging the brake lock.

• The safety interlock system will automatically

shut off the engine if the operator leaves the

seat with the PTO lever in the engaged (ON)

position, regardless of whether the brake lock

is engaged. The PTO lever must be in the

disengaged (OFF) position to restart the

engine.

• The safety interlock system will automatically

shut off the engine if the PTO lever is moved

into the engaged (ON) position with the shift

lever in the REVERSE position.

WARNING: Do NOT attempt to bypass

or disconnect the tractor’s safety interlock.

Doing so could result in serious personal

injury or death.

IMPORTANT:

Tampering with or attempting to

bypass the tractors Safety Interlock Switches in any

way WILL void your warranty.

AVOID SERIOUS INJURY OR DEATH

• GO UP AND DOWN SLOPES, NOT ACROSS.

• AVOID SUDDEN TURNS.

• DO NOT OPERATE THE UNIT WHERE IT COULD SLIP OR TIP.

• IF MACHINE STOPS GOING UPHILL, STOP BLADE(S) AND BACK

DOWNHILL SLOWLY.

• DO NOT MOW WHEN CHILDREN OR OTHERS ARE AROUND.

• NEVER CARRY CHILDREN.

• LOOK DOWN AND BEHIND BEFORE AND WHILE BACKING.

• KEEP SAFETY DEVICES (GUARDS, SHIELDS, AND SWITCHES) IN

PLACE AND WORKING.

• REMOVE OBJECTS THAT COULD BE THROWN BY THE BLADE(S).

• KNOW LOCATION AND FUNCTION OF ALL CONTROLS.

• BE SURE BLADE(S) AND ENGINE ARE STOPPED BEFORE PLAC-

ING HANDS OR FEET NEAR BLADE(S).

• BEFORE LEAVING OPERATOR’S POSITION, DISENGAGE

BLADE(S), PLACE THE SHIFT LEVER IN NEUTRAL, ENGAGE

BRAKE LOCK, SHUT ENGINE OFF AND REMOVE KEY.

READ OPERATOR’S MANUAL

WARNING

12

SETTING THE CUTTING HEIGHT

Select the height position of the cutting deck by

placing the deck lift lever in any of the six different

cutting height notches on the right side of the fender.

Then adjust the deck wheels so that they are at least

1/4 inch to 1/2 inch above the ground when the

tractor is on a smooth, flat surface such as a

driveway.

WARNING: Keep hands and feet away

from the discharge chute opening of the

cutting deck.

NOTE:

The deck wheels are an anti-scalp feature

of the deck and are not designed to support the

weight of the cutting deck.

Refer to the ADJUSTMENTS section of this manual

for more detailed instructions regarding various deck

adjustments.

STARTING THE ENGINE

NOTE:

Refer to the TRACTOR SET-UP section of

this manual for Gasoline and Oil fill-up instructions.

• Insert the tractor key into the ignition switch.

• Place the PTO lever in the disengaged (OFF)

position.

• Depress the brake pedal and set the parking

brake.

• Place the shift lever in the NEUTRAL position.

• Move the throttle control lever into the FAST

(or CHOKE, if so equipped) position.

• Pull out the choke control knob, if so equipped

(a warm engine may not require choking).

• Turn the ignition key clockwise to the START

position. After the engine starts, release the

key. It will return to the ON position.

IMPORTANT:

Do NOT hold the key in the START

position for longer than ten seconds at a time. Doing

so may cause damage to your engine’s starter.

NOTE:

If starting problems are encountered, refer

to the

TROUBLESHOOTING

section of this manual.

After the engine starts, slowly release the brake

pedal. As the engine warms up, gradually push the

choke control knob inward (or move the throttle

control lever out of the CHOKE position into the

FAST position) to open up the choke plate on the

engine’s carburetor.

NOTE:

Do NOT leave the choke control out while

operating the tractor. Doing so will result in a "rich"

fuel mixture and cause the engine to run poorly

.

STOPPING THE ENGINE

• Place the PTO lever in the disengaged (OFF)

position

• Move the throttle control into the SLOW

(turtle) position and allow the engine to "idle

down" for ten seconds. Failure to do so may

result in an engine afterfire.

• Turn the ignition key counterclockwise to the

OFF position.

• Remove the key from the ignition switch to

prevent accidental starting.

IMPORTANT:

If you think you’ve struck a foreign

object, stop the engine immediately. Remove the

wire(s) from the spark plug(s), thoroughly inspect the

unit for any damage, and repair the damage before

restarting and operating the tractor

.

DRIVING THE TRACTOR

WARNING: Avoid sudden starts,

excessive speed and sudden stops.

WARNING: Do not leave the seat of the

tractor without first placing the PTO lever in

the disengaged (OFF) position, depressing

the brake pedal and engaging the parking

brake. If leaving the tractor unattended,

also turn the ignition key off and remove

the key.

• Depress the brake pedal to release the

parking brake and let the pedal up. Move the

throttle lever into the FAST (rabbit) position.

IMPORTANT:

Do NOT use the shift lever to

change the direction of travel when the tractor is in

motion. Always use the brake pedal to bring the

tractor to a complete stop before shifting.

• To move forward, place the shift lever in the

FORWARD position, then slowly depress the

AutoDrive™ pedal until the desired speed is

achieved.

• To move in reverse, place the shift lever in the

REVERSE position, check that the area

behind is clear then slowly depress the

AutoDrive™ pedal.

SETTING THE CRUISE CONTROL

NOTE:

The cruise control feature can only be

operated in the forward direction.

• Place the shift lever in the FORWARD

position, then slowly depress the AutoDrive™

pedal until the desired speed is achieved.

• Lightly depress the cruise control button.

13

• While continuing to hold the cruise button in,

lift your foot from the AutoDrive™ pedal (you

should feel the cruise latch engage).

• If properly engaged, the cruise control button

and the AutoDrive™ pedal should lock in the

down position, and the tractor will maintain the

same forward speed.

• Disengage the cruise control using one of the

following methods:

• Depress the brake pedal to disengage the

cruise control and stop the tractor.

• Lightly depress the AutoDrive™ pedal.

To change to the reverse direction when operating

with cruise control, depress the brake pedal to

disengage the cruise control and bring the tractor to

a complete stop. Then place the shift lever in the

REVERSE position and depress the AutoDrive™

pedal.

DRIVING ON SLOPES

Refer to the SLOPE GAUGE on page 6 to help

determine slopes where you may not operate safely.

WARNING: Do not mow on inclines with

a slope in excess of 15 degrees (a rise of

approximately 2-1/2 feet every 10 feet).

The tractor could overturn and cause

serious injury.

Operate the tractor up and down slopes, never

across slopes. Do not drive so that the tractor may

tip over sideways.

Before operating the tractor on any slope, walk the

slope to look for possible hazards such as rocks.

mounds, ruts, stumps or other surface irregularities

which could cause the tractor to be upset.

Avoid turns when driving on a slope. If a turn must

be made, turn down the slope. Turning up a slope

greatly increases the chance of a roll over.

Avoid stopping when driving up a slope. If it is

necessary to stop while driving up a slope, start up

smoothly and carefully to reduce the possibility of

flipping the tractor over backward.

OPERATING THE HEADLIGHTS

To turn the tractor’s headlights on:

• Start the engine following the instructions

earlier in this section.

• Turn the key one notch counterclockwise into

the On/Lights position of the ignition switch.

Refer to Figure 4.

To turn the tractor’s headlights off:

• Turn the key either into the On position (to

leave the engine running) or the Off position

(to shut the engine off). Refer to Figure 4.

IMPORTANT:

Never move the key into the Start

position while the engine is running. Doing so may

cause damage to your engine’s starter.

STOPPING THE ENGINE

• Place the PTO lever in the disengaged (OFF)

position.

• Move the throttle control into the SLOW

position and allow the engine to "idle down"

for ten seconds, then turn the ignition key

counterclockwise to the OFF position.

• Remove the key from the ignition switch to

prevent accidental starting.

IMPORTANT:

If you think you’ve struck a foreign

object, stop the engine immediately. Remove the

wire(s) from the spark plug(s), thoroughly inspect the

unit for any damage, and repair the damage before

restarting and operating the mower.

USING THE LIFT LEVER

To raise the cutting deck, move the lift lever to the

left, then place it in the notch best suited for your

application. Refer to SETTING THE CUTTING

HEIGHT earlier in this section.

ENGAGING THE PTO

(POWER TAKE-OFF) LEVER

• Move the throttle control lever to the FAST

(rabbit) position.

• Move the PTO lever forward into the engaged

(ON) position.

• Keep the throttle lever in the FAST (rabbit)

position for the most efficient use of the

cutting deck and other attachments.

• The operator must remain in the tractor seat

at all times. If the operator should leave the

seat without moving the PTO lever into the

disengaged (OFF) position and setting the

parking brake, the engine will shut off.

IMPORTANT:

The PTO lever cannot be in the

engaged (ON) position when the tractor is driving in

the reverse direction. The safety interlock system will

automatically shut off the engine if the PTO lever is

moved into the engaged (ON) position with the shift

lever in the REVERSE position. Refer to

SAFETY

INTERLOCK SWITCHES

earlier in this section.

14

MOWING

This tractor is equipped with one of

MTD

’s high

quality cutting decks. The following information will

be helpful when using the cutting deck with your

tractor.

WARNING:

To avoid possible injury, do

not allow anyone in the area of the tractor

while mowing. Even if the area to be

mowed has been cleared of foreign

objects, small objects may be picked up

and discharged by the mower.

WARNING: Never direct the discharge

of material toward bystanders or allow

anyone near the machine while in

operation.

• For best results it is recommended that the

first two laps be cut with the discharge thrown

towards the center. After the first two laps,

reverse the direction to throw the discharge to

the outside for the balance of cutting. This will

give a better appearance to the lawn.

• Do not cut the grass too short. Short grass

invites weed growth and yellows quickly in dry

weather.

• Mowing should always be done with the

engine at full throttle.

• Do not mow at high ground speed, especially

if a mulch kit or grass collector is installed.

• Under heavier conditions it may be necessary

to go back over the cut area a second time to

get a clean cut.

• Do NOT attempt to mow heavy brush and

weeds and extremely tall grass. Your tractor is

designed to mow lawns, NOT clear brush.

• Keep the blades sharp and replace the blades

when worn. Refer to the MAINTENANCE

section of this manual for proper blade

sharpening instructions.

SECTION 9: ADJUSTMENTS

LEVELING THE DECK

WARNING: Cutting blades are sharp.

Always protect hands by wearing heavy

leather work gloves to grasp blades.

NOTE:

Check the tractor’s tire pressure before

performing any deck leveling adjustments. Refer to

TIRES

in the maintenance section of this manual for

further information regarding tire pressure.

Front to Rear

The front of the cutting deck is supported by a stabi-

lizer bar that can adjusted to level the deck from front

to rear. The front of the deck should be 1/4" to 3/8"

lower than the rear of the deck. Adjust if necessary

as follows:

WARNING: Turn the tractor’s engine

off, remove the key from the ignition switch

and apply the tractor’s parking brake before

making any adjustments to the cutting

deck.

• With the tractor parked on a firm, level

surface, place the lift lever in the top notch

(highest position) and rotate the blade nearest

the discharge chute so that it is parallel with

the tractor.

• Measure the distance from the front of the

blade tip to the ground and the rear of the

blade tip to the ground. The first measurement

taken should be between 1/4" and 3/8" less

than the second measurement. Determine the

approximate distance necessary for proper

adjustment and proceed, if necessary, to the

next step.

• Loosen the two jam nuts on the rear side of

the deck stabilizer bracket. See Figure 7A.

• Locate the two lock nuts on the opposite side

of the stabilizer bracket. See Figure 7A.

Tighten the lock nuts to raise the front of the

deck; loosen the lock nuts to lower the front of

the deck.

• Retighten the two jam nuts loosened earlier

when proper adjustment is achieved.

Side to Side

If the cutting deck appears to be mowing unevenly, a

side to side adjustment can be performed. Adjust if

necessary as follows:

WARNING: Turn the tractor’s engine

off, remove the key from the ignition switch

and apply the tractor’s parking brake

before making any adjustments to the

cutting deck.

• With the tractor parked on a firm, level

surface, place the lift lever in the top notch

(highest position) and rotate the both blades

so that they are perpendicular with the tractor.

15

• Measure the distance from the outside of the left blade tip to the ground and the distance from the

outside of the right blade tip to the ground. Both measurements taken should be equal. If they’re not,

proceed to the next step.

• Loosen, but do NOT remove, the hex cap screw on the left deck hanger bracket. See Figure 7B.

• Balance the deck so that both blade tip measurements taken earlier are equal.

• Retighten the hex cap screw on the left deck hanger bracket when proper adjustment is achieved.

Figure 7

SEAT ADJUSTMENT

To adjust the position of the seat, move the seat

adjustment lever (located under the seat) to the left

and slide the seat forward or backwards. See Figure

8. Make sure seat is locked into one of the six

adjustment positions before operating the tractor.

Figure 8

STEERING ADJUSTMENT

If the tractor turns tighter in one direction than the

other, or if the ball joints are being replaced due to

damage or wear, the steering drag links may need to

be adjusted.

Adjust the drag links so that equal lengths are

threaded into the ball joint on the left side and the

ball joint on the right side:

• Loosen the jam nut found on the drag link at

the rear of the ball joint. See Figure 9.

• Remove the hex nut and lock washer on the

top of ball joint. See Figure 9.

Figure 9

• Thread the ball joint toward the jam nut to

shorten the drag link. Thread the ball joint

away from the jam nut to lengthen the drag

link.

• Replace hex nut and lock washer and

retighten the jam nut after proper adjustment

is achieved.

NOTE:

Threading the ball joints too far onto the

drag links will cause the front tires to "toe-in" too far.

Proper toe-in is between 1/16" and 5/16".

Jam

Deck

Stabilizer

Bracket

Nuts

Lock

Nuts

Deck

Hex Cap Screw

Deck Hanger Bracket

AB

F

ront to Rear Side to Side

Seat

Seat Adjustment Lever

Drag Link

Ball Joint

Axle

Pivot Bar

Hex Nut and

Jam Nut

Lock Washer

Zerk Fittting

(if so equipped)

16

Front tire toe-in can be measured as follows:

• Place the steering wheel in position for

straight ahead travel. Insert a 1/4" dowel up

through aligning holes in both the steering

gear and support plate. See Figure 10.

Figure 10

• In front of the axle, measure the distance

horizontally from the inside of the left rim to

the inside of the right rim. Note the distance.

• Behind the axle, measure the distance

horizontally from the inside of the left rim to

the inside of the right rim. Note the distance.

• The measurement taken in front of the axle

should be between 1/16" and 5/16" less than

the measurement taken behind the axle.

• Adjust if necessary.

• Remove the dowel inserted earlier before

attempting to operate the tractor.

CARBURETOR ADJUSTMENT

WARNING: If any adjustments are

made to the engine while the engine is

running (e.g. carburetor), disengage all

clutches and blades. Keep clear of all

moving parts. Be careful of heated

surfaces and muffler.

NOTE:

A dirty air cleaner will cause an engine to

run rough. Be certain it is clean and properly

attached before adjusting carburetor. Refer to

separate engine manual packed with your unit for

information regarding air cleaner maintenance.

Refer to separate engine manual packed with your

unit for carburetor adjustment information or see an

authorized engine service dealer.

BRAKE ADJUSTMENT

If the tractor does not come to a complete stop when

the brake pedal is completely depressed, or if the

tractor’s rear wheels can roll with the parking brake

applied, the brake is in need of adjustment. The

brake disc can be found on the right side of the

transmission in the rear of the tractor. Adjust if

necessary as follows:

• Looking at the transmission from the right side

of the tractor, locate the compression spring

and brake disc. See Figure 11.

Figure 11

• Loosen, but do NOT remove, the hex nut

found on the right side of the brake assembly.

See Figure 11.

• Using a feeler gauge, set the gap between the

brake disc and the brake puck at .011".

• Re-tighten the hex nut loosened earlier.

PTO (POWER TAKE-OFF) ADJUSTMENT

If your tractor’s engine fails to crank when following

the starting instructions found earlier in this manual,

the PTO may be in need of adjustment. With the

PTO lever in the disengaged (OFF) position, the

lever must go back far enough so that a metal tab

that is bolted to the base of the lever can fully

depress a plunger saftey switch mounted to the

tractor’s frame beneath the fuel tank. Adjust, if

necessary, as follows:

WARNING: If the blades on your

tractor’s cutting deck continue to turn with

the PTO lever in the disengaged (OFF)

postion, stop the tractor immediately and

perform the following steps.

• Turn the tractor’s engine off, remove the key

from the ignition switch and apply the tractor’s

parking brake.

Steering Gear

Insert Dowel

Here

Drag Links

Steering

Shaft

Support

Plate

NOTE: View shown from beneath tractor.

Brake Disc

Hex Nut

Compression

Spring

Set Gap

at .011"

NOTE: View shown from beneath tractor. Transmission

17

• Locate the PTO engagement rod and the PTO

adjuster link by looking at the tractor’s

underside. See Figure 12.

• Remove the cotter pin that affixes the lower

end of the PTO engagement rod to the PTO

adjuster link. Save the pin. See Figure 12.

• Take the lower end of the PTO engagement

rod out of the hole in the PTO adjuster link

and move the rod as far back into the

disengaged (OFF) position as possible.

• Thread the PTO adjuster link outward until the

hole in the end of it is aligned with the PTO

engagement rod.

• Reinsert the PTO engagement rod into the

hole in the PTO adjuster link and reinsert the

cotter pin removed earlier (if undamaged).

Figure 12

SECTION 10: MAINTENANCE

WARNING: Disconnect the spark plug

wire(s) and ground against the engine

before performing any adjustments, repairs

or maintenance.

ENGINE

Refer to the separate engine manual for engine

maintenance instructions.

Check engine oil level before each use as

instructed in the separate engine manual packed

with your unit. Read and follow instructions

carefully.

Changing Engine Oil

• Unscrew oil fill cap and remove dipstick from

the oil fill tube. See Figure 13.

Figure 13

• Pop open the protective cap on the end of the

oil drain valve to expose the oil drain port. See

Figure 13.

• Push oil drain hose (packed with unit) onto the

oil drain port. Route the opposite end of the

hose into an appropriate oil collection

container with a capacity great enough to

collect the used oil.

• Push the oil drain valve in slightly, then rotate

counterclockwise and pull outward to begin

draining oil. See Figure 13.

• Service the oil filter (if so equipped) as

instructed in the separate engine manual

packed with your unit.

Perform the above steps in the opposite order after

oil has finished draining.

• Refill the engine with new motor oil.

IMPORTANT:

Refill the engine with the proper

capacity and weight of motor oil as instructed in the

separate engine manual.

Service air cleaner every 25 hours under normal

conditions. Clean every few hours under extremely

dusty condition. To service the air cleaner, refer to

the separate engine manual packed with your unit.

The spark plug(s) should be cleaned and the gap

reset once a season. Spark plug replacement is

recommended at the start of each mowing season;

check engine manual for correct plug type and gap

specifications.

PTO Engagement Rod Cotter Pin

PTO Adjuster Link

Protective Cap

Oil Drain Hose

Oil Drain Port

Oil Fill Cap

Oil Fill Tube Oil Drain Valve

Single-cylinder engine shown.

NOTE:Valve location will vary with engine style.

18

CLEANING THE ENGINE AND DECK

Any fuel or oil spilled on the machine should be

wiped off promptly. Do NOT allow grass, leaves, and

dirt to accumulate around the cooling fins of the

engine or on any other part of the machine,

especially the pulleys and other moving parts.

Clean the underside of the deck with a wisk broom,

putty knife or forced air after each mowing.

IMPORTANT:

Do NOT use a garden hose to

clean the cutting deck. The ball bearings in the blade

spindles are sealed at the factory and cannot be re-

lubricated. Spraying water near the spindles can

significantly reduce the life of the bearings.

CUTTING DECK REMOVAL

WARNING: Before performing any

maintenance, move the PTO lever into the

disengaged (OFF) position, engage the

parking brake, turn the ignition key to the

OFF position and remove the key from the

switch to avoid accidental starting.

Several attachments are available for your tractor.

To mount some of these attachments and in order to

perform certain maintenance procedures, the deck

must be removed from the tractor. To properly

remove the cutting deck, proceed as follows:

WARNING: Do NOT remove deck

immediately after operating the tractor.

Allow the engine and other moving parts

ample time to cool down.

• Move the PTO lever into the disengaged

(OFF) position and engage the parking brake.

• Lower the deck by moving the lift lever into the

bottom notch on the right fender.

• Grasp the PTO idler pulley bracket and pivot it

toward the discharge chute to relieve tension

on the belt. Remove the deck belt from the

bottom portion of the engine pulley and from

around the PTO idler pulley.

NOTE:

On units equipped with a 46-inch deck, the

bottommost belt on the deck does NOT need to be

removed in order to remove the deck.

• Looking at the cutting deck from the right side

of the tractor, locate the deck support pin on

the rear right side of the deck.

• Pull the deck support pin outward to release

the deck from the deck lift arm. See Figure 14.

• Rotate the pin slightly toward the rear of the

tractor and release the pin into the hole

provided.

• Repeat the above steps on the left side of the

tractor.

• Move the lift lever into the top notch on the

right fender to raise the deck lift arms out of

the way.

• Gently slide the cutting deck toward the front

of the tractor allowing the hooks on the deck

to release themselves from the deck stabilizer

rod. Do NOT let the deck fall to the ground.

• Gently slide the cutting deck (from the right

side) out from underneath the tractor.

NOTE:

To properly remount the cutting deck,

perform the above steps in reverse order. Having a

second person assist you will ease this procedure.

Figure 14

Deck Support Pins

Deck

Stabilizer

Bracket

Deck Stabilizer Rod

Deck Lift Arms

Engine Pulley

PTO Idler Pulley Bracket

To Lift Assembly

Front of Tractor

NOTE: Belt covers and other tractor components not shown for clarity. 42-inch deck shown

Hooks

(mounted on tractor)

PTO Idler Pulley

PTO Belt

19

CHANGING THE DECK BELT(S)

All belts on your tractor are subject to wear and should be replaced if any signs of cracking, shredding or

rotting are present.

IMPORTANT:

The V-belts found on your tractor are specially designed to engage and disengage safely. A

substitute (non-OEM) V-belt can be dangerous by not disengaging completely. For a proper working machine,

use factory approved belts.

To change or replace the deck belt(s) on your tractor, proceed as follows:

NOTE:

Removing the deck from the tractor as instructed earlier in this section will ease the following steps,

but is not necessary.

42-inch decks

• Lower the deck by moving the lift lever into the bottom notch on the right fender.

• Remove the belt guards by removing the self-tapping screws that fasten them to the deck surface.

• Grasp the PTO idler pulley bracket and pivot it toward the discharge chute to relieve tension on the belt.

• Remove the deck belt from the bottom portion of the engine pulley and from around the PTO idler

pulley.

• Route the new belt as shown in Figure 14, around the deck pulleys, idler pulley and engine pulley.

IMPORTANT:

It is recommended that the PTO be readjusted after replacing the deck belt. Refer to

PTO

(POWER TAKE-OFF) ADJUSTMENT

in the

ADJUSTMENTS

section of this manual for the proper procedure.

• Remount the belt guards removed earlier.

Figure 15

46-inch decks

• Lower the deck by moving the lift lever into the bottom notch on the right fender.

• Remove the belt guards by removing the self-tapping screws that fasten them to the deck.

• Grasp the PTO idler pulley bracket and pivot it toward the discharge chute to relieve tension on the belt.

• Remove the deck belt from the bottom portion of the engine pulley and from around the PTO idler

pulley.

• Remove and discard old belt.

• Route the new belt(s) as shown in Figure 15. OEM belt part numbers shown below.

Engine Pulley PTO Idler Pulley

Left Hand

Double Pulley

Right Hand

Double Pulley

Center Pulley

Deck Idler Pulley

Deck belt (Bottom)

PTO belt (Top)

NOTE: Left hand belt cover not shown for clarity. 46-inch deck shown.

Self-Tapping Screws

(beneath belt guard)

(mounted on tractor)

20

IMPORTANT:

It is recommended that the PTO be readjusted after replacing the deck belt. Refer to

PTO

(POWER TAKE-OFF) ADJUSTMENT

in the

ADJUSTMENTS

section of this manual for the proper procedure.

• Remount the belt guards removed earlier.

CHANGING THE TRANSMISSION DRIVE BELT(S)

All belts on your tractor are subject to wear and should be replaced if any signs of cracking, shredding or

rotting are present.

IMPORTANT:

The V-belts found on your tractor are specially designed to engage and disengage safely. A

substitute (non-OEM) V-belt can be dangerous by not disengaging completely. For a proper working machine,

use factory approved belts.

To change or replace the drive belt(s) on your tractor, proceed as follows:

NOTE:

It’s recommended that both drive belts be replaced at the same time.

• Remove the cutting deck as instructed earlier in this section.

• After disconnecting the battery cables, remove the battery and battery tray from beneath the seat.

IMPORTANT:

When removing the battery, disconnect the NEGATIVE (Black) wire from it’s terminal first,

followed by the POSITIVE (Red) wire. Re-install in reverse order.

Upper Drive Belt

• Locate the transmission idler pulley on the upper drive belt by looking through the battery tray opening.

See Figure 16.

• Grasp the bracket and pivot the transmission idler pulley toward the rear of the tractor to release

tension on the upper drive belt.

• Remove the belt from around the transmission idler pulley.

• Remove the upper drive belt from around the transmission pulley and the variable-speed pulley.

NOTE:

Slowly rotate the pulley counterclockwise to roll the belt off of it.

• Remove the upper drive belt by pulling it up through the battery tray opening.

• Reroute the new upper drive belt as shown in Figure 16.

Lower Drive Belt

NOTE:

Proper removal of the lower drive belt requires special tools and the removal of several tractor

components. Read through the following procedure prior to attempting it to determine if you feel you could

successfully complete it. If you don’t, see an authorized MTD service dealer to have the belt changed.

IMPORTANT:

Note the routing of the lower drive belt around both the pulleys and the belt keepers

BEFORE performing the following steps.

• Locate the variable-speed pulley by looking through the battery tray opening. See Figure 16.

• Remove the variable-speed pulley by loosening the hex bolt that affixes it to the transmission. Use a

second wrench to hold the hex nut on the bottom side of the pulley.

• Slide the belt off of the variable-speed pulley as you lift the pulley up and out through the battery tray

opening.

NOTE:

Jacking the rear of the tractor up off the ground and securing it with jackstands at this point in the

procedure will ease the following steps, but is not necessary.

42-Inch Deck 46-Inch Deck

PTO (Top) Belt 754-0472 754-0476

Bottom Belt N/A 754-0349

21

Figure 16

• Remove the rear idler pulley from the double-

idler bracket while unrouting the belt from

around both the rear and the front idler pulley.

Refer to Figure 16.

• Remove the cotter pin that affixes the lower

end of the PTO engagement rod to the PTO

adjuster link. Save the pin for reassembly.

See Figure 17.

Figure 17

• Remove the hex bolt from the center of the

engine pulley. Do NOT attempt to remove the

engine pulley at this time. See Figure 18.

Figure 18

IMPORTANT:

When remounting the engine

pulley, torque the center hex bolt to between 38 foot-

pounds and 50 foot-pounds.

Drive belt (Lower)

Drive belt (Upper)

Front of Tractor

Rear Idler Pulley

Front Idler Pulley

Variable-speed

Pulley

Battery Tray

Belt Keeper

Transmission Idler Pulley

Transmission Pulley

Engine Pulley

Belt Keeper

Single-speed

Transmission

Shift Lever

Opening

Double-Idler Bracket

Idler Bracket

to AutoDrive™ pedal

Belt Keeper

NOTE: View shown from above tractor.

PTO Engagement Rod Cotter Pin

PTO Adjuster Link

Hex Bolt

Engine Pulley

NOTE: View shown from beneath tractor.

22

• Remove the two hex bolts (from both sides of

the tractor) that affix the PTO actuator bracket

to the tractor frame. See Figure 19.

Figure 19

• Carefully lower the PTO actuator bracket and

the engine pulley as an assembly while

removing the drive belt from the upper portion

of the engine pulley.

• Remove the drive belt by feeding it from both

ends toward the front idler pulley on the

double-idler bracket. See Figure 16.

• Reassemble by following the above steps in

reverse order.

• Reroute the new belt around the pulleys and

belt keepers EXACTLY as the old one was

routed. Refer to Figure 16.

The AutoDrive™ pedal is properly adjusted when the

hole found in the double-idler bracket has

approximately 1-3/8" of travel with ten pounds of

pressure applied to the AutoDrive™ pedal. See

Figure 20.

Figure 20

Adjust the AutoDrive™ pedal after replacing the drive

belts on your tractor, if necessary, as follows:

• Locate the speed control assembly on the

underside of the steering support bracket. See

Figure 21.

Figure 21

• Remove both hairpin clips from the pin which

is fastened to the speed control assembly (be

careful not to lose the small flat washers found

on the pin). See Figure 21.

• Remove the AutoDrive™ pedal return spring.

• Using two 9/16" wrenches, remove the pin

from the speed control assembly. See Figure

21.

Thread the idler adjustment rod inward or outward to

lengthen or shorten the travel of the double-idler

bracket until proper adjustment is achieved.

• Reassemble by following the above steps in

reverse order.

IMPORTANT:

After replacing the drive belts,

perform the PTO adjustment as instructed in the

ADJUSTMENTS

section of this manual prior to

operating the tractor.

CUTTING BLADES

WARNING: Cutting blades are sharp.

Always protect hands by wearing heavy

leather work gloves to grasp blades.

The blades may be removed for sharpening or

replacement as follows.

• Remove the deck from beneath the tractor,

(refer to DECK REMOVAL earlier in this

section for detailed instructions) then gently

flip the deck over to expose its underside.

• Place a block of wood between the center

deck housing baffle and the cutting blade to

act as a stabilizer. See Figure 22.

• Use a 15/16" wrench to remove the hex flange

nut that secures the blade to the spindle

assembly. See Figure 22.

Hex Bolts

PTO Actuator

Bracket Deck Stop

Front of Tractor

NOTE: View shown from above tractor.

Double-idler

Bracket

Idler

Adj. Rod

Hole

Speed Control

Assembly

Hairpin

Clips

Idler

Adj. Rod

Pin

AutoDrive™ Pedal

Return Spring

Place Wrenches Here

Neutral

Return

Bracket

23

NOTE:

The hex flange nut has a right-handed

thread pattern. Do NOT attempt to force the nut in

the incorrect direction. Doing so may damage the

nut and create a safety hazard.

Figure 22

To properly sharpen the cutting blades, remove

equal amounts of metal from both ends of the blades

along the cutting edges. See Figure 23.

Sharpen the cutting edge straight across, parallel to

the trailing edge, at a 25° to 30° angle. See Figure

23.

IMPORTANT:

If the cutting edge of the blade has

already been sharpened to within 5/8" of the wind

wing radius, or if any metal separation is present,

replace the blades with new ones. See Figure 23.

Figure 23

It is extremely important that each cutting blade

edge be ground equally to maintain proper blade

balance. An unbalanced blade will cause excessive

vibration when rotating at high speeds, may cause

damage to the tractor and result in personal injury.

The blade can be tested by balancing it on a round

shaft screwdriver. Grind metal from the heavy side

until it balances evenly.

When replacing the blade, be sure to install the

blade with the side of the blade marked ‘‘Bottom’’ (or

with a part number stamped in it) facing the ground

when the mower is in the operating position.

IMPORTANT:

Use a torque wrench to tighten the

blade spindle hex flange nut to between 70 foot-

pounds and 90 foot-pounds.

BATTERY

The battery is sealed and is maintenance-free. Acid

levels cannot be checked.

• Always keep the battery cables and terminals

clean and free of corrosive build-up.

• After cleaning the battery and terminals, apply

a light coat of petroleum jelly or grease to the

terminals and over the positive terminal boot.

• Always keep the boot positioned over the

positive terminal to prevent shorting.

IMPORTANT:

If removing the battery for any

reason, disconnect the NEGATIVE (Black) wire from

it’s terminal first, followed by the POSITIVE (Red)

wire. When re-installing the battery, always connect

the NEGATIVE (Black) wire its terminal first, followed

by the POSITIVE (Red) wire. Be certain that the

wires are connected to the correct terminals.

reversing them could change the polarity and cause

damage to your engine’s alternating system.

Charging

If the unit has not been put into use for an extended

period of time, charge the battery with an

automotive-type 12-volt charger for a minimum of

one hour at six amps.

WARNING: Batteries give off an

explosive gas during and for some time

after charging. Charge battery in a well

ventilated area and do not allow a spark or

an open flame near the battery.

FUSE

A fuse is installed in your tractor’s wiring harness to

protect the tractor’s electrical system from damage

caused by excessive amperage. Always use the

same capacity fuse for replacement. If the electrical

system does not function, or your tractor’s engine

will not crank, first check to be certain that the fuse

has not blown. It can be found under the hood

mounted behind the top of dash panel on the

support bar. Pull the fuse out and compare it with

Figure 24 to determine if it is good or bad.

Figure 24

Cutting Blade

Block of Wood

Spindle

Assembly

Hex Flange Nut

5/8"

minimum

Blade Separation

Worn Blade Edge

Wind Wing

Sharpen Edge Evenly

GOOD BAD

20 20

24

TIRES

The recommended operating tire pressure is

approximately 10 psi for the rear tires and 14 psi for

the front tires. Refer to the tire sidewall for exact tire

manufacturer’s recommended psi. Do not

overinflate. Uneven tire pressure could cause the

cutting deck to mow unevenly.

SECTION 11: LUBRICATION

WARNING:

Always stop the engine and disconnect the spark plug wire(s) and ground against the

engine before performing any maintenance.

ENGINE

Lubricate the engine with motor oil as instructed in the separate engine manual packed with your unit.

PIVOT POINTS

Lubricate all pivot points (AutoDrive™ pedal, brake pedal, etc.) at least once a season with light oil.

LINKAGE

Lubricate all the pivot points on the drive, brake and lift linkage at least once a season with SAE 30 engine oil.

STEERING GEAR

Lubricate the teeth of the steering gear with an all-purpose automotive grease every 25 hours of operation or

once a season.

WHEELS

Both the front wheels and the rear wheels should be removed from the axles once a season. Lubricate the

axles and the rims well with an all-purpose automotive grease before re-installing them.

FRONT AXLES

Your tractor may be equipped with zerk fittings on the ends of the front pivot bar. See Figure 9. Lubricate both

the left and the right front axles with a grease gun at least once a season.

25

SECTION 12: TROUBLESHOOTING GUIDE

Trouble Possible

Cause(s) Corrective Action

Engine will

not crank

Safety switch

button not

depressed.

Battery installed

incorrectly.

Battery is dead

or weak.

Blown fuse

There are two safety switches in the starting circuit of your unit: the brake pedal switch

and the PTO switch. Make certain the actuator is fully depressing the buttons on each

switch. The Operator must be seated on the tractor in order to start the engine, also.

The battery must be installed with negative terminal attached to black ground wire.

Negative terminal is identified at the post by “NEG”, “N” or “-”. The positive terminal,

identified by “POS”, “P” or “+”, must be attached to the thick red wire which goes to the

solenoid.

Charge at six amps with a 12-volt automotive-type battery charger for one hour or until

fully charged.

Refer to operator’s manual for fuse location. Replace fuse with automotive type fuse of

the proper amperage. Fuses seldom fail without a reason. The problem must be

corrected. Check for loose connections in the fuse holder. Replace fuse holder if nec-

essary. A dead short may be in the cranking or charging circuit where the insulation

may have rubbed through and exposed the bare wire. Replace the wire or repair with

electrician's tape if the wire strands have not been damaged.

Note: Look for a wire pinched between body panels, burned by the exhaust pipe or

muffler or rubbed against a moving part.

Engine

cranks but

will not start

Throttle or choke

not in starting

position.

No fuel to the

carburetor.

No spark to

spark plug(s).

Dirty aircleaner.

Refer to the OPERATION section of this manual for the correct position of the throttle

control and choke for starting..

Gasoline tank empty. Fill.

Fuel line or in-line fuel filter plugged. Remove and clean fuel line. Replace fuel filter

(if so equipped) if necessary.

Spark plug lead disconnected. Connect lead. Using a spark tester, check for spark. If

no spark is present, have engine’s magneto serviced by an authorized engine dealer.

If the air cleaner is dirty, the engine may not start. Refer to the engine manual packed

with your unit.

Engine

smokes

Engine oil has

been overfilled.

Engine loses

crankcase

vacuum.

Check oil level.

Dipstick not seated or broken. Replace defective part.

Engine breather defective. Replace.

Excessive

vibration

Bent blade or

damaged pulley.

Stop engine immediately. Check all pulleys, blade adapters, keys and bolts for

tightness and spindle damage. Tighten or replace any loose or damaged parts.

Always replace damaged blade. Only use original equipment blades.

Mower

won’t

discharge

grass or

leaves

uncut strips

Engine speed

low.

Speed selection.

Cutting height

set too low.

Blades dull.

Throttle must be set at full throttle.

Use lower ground speed. The slower your ground speed, the better the quality of cut.

Raise deck.

Sharpen or replace blades (uncut strip problem only).

26

REF.

NO. PART

NO. DESCRIPTION

1 625-0051 Bulb/Socket Headlight Assembly

725-1739 Bulb Only

725-1649 Socket Only

2 629-0913 Wiring Harness

3 629-0924 Harness Adapter (for Kohler engines)

4 710-0599 Self Tapping Screw, 1/4-20 x .5

5 712-3006 Hex Nut, 1/4-20

6 725-1426 Solenoid, 12-volt, 100 Amp

7 725-1657A Snap Mount Safety Interlock Switch

8 725-1741 Ignition Switch

9 725-1743 Indicator Monitor / Hour Meter

10 725-1745 Ignition Key

11 725-1747 Safety Plunger Switch

12 736-0222 External Lock Washer, 1/4

13 736-0329 Lock Washer, 1/4

Model 604

9

3

8

10

1

7

7

5

11

5

13

13

6

4

5

2

27

Electrical System/Tractor Body

1

4

21

10

4

2

32

2

12

16

2

13

22

14

3

6

8

9

18

19

6

22

22

22

22

22

22

15

33

31

34

26

35

23

24

28

25

30

29

4

27 36

20

4

REF.

NO. PART

NO. DESCRIPTION

1 710-0788 Self Tapping Screw, 1/4-20 x 1.0

2 710-0599 Self Tapping Screw, 1/4-20 x .5

3 710-0751 Hex Cap Screw, 1/4-20 x .62

4 710-0895 Self Tapping Screw, 1/4-15 x .75

5 710-0924 Pan Phillips Screw, 1/4-20 x .75

6 710-3008 Hex Cap Screw, 5/16-18 x .75

7 712-0292 U-type Speed Nut, 1/4-20

8 712-3004A Flange Lock Nut, 5/16-18

9 712-3027 Hex Flange Lock Nut, 1/4-20

10 725-1649 Head Lamp Socket

11 731-1978 RH Head Light Lens

12 731-1979 LH Head Light Lens

13 731-2238 Hood, 4-style (Red)

14 731-2237 LH Side Panel, 4-style (Red)

15 731-2236 RH Side Panel, 4-style (Red)

16 731-1995 LH Head Light Reflector

17 731-1996 RH Head Light Reflector

18 736-0173 Flat Washer, .28 x .74 x .063

19 736-3078 Flat Washer, .349 x 1.0 x .063

20 747-1132 Hood Support Rod

21 783-0808 Heat Shield, 4-style

22 710-0604 Self Tapping Screw, 5/16-18 x .625

23 710-1017 Torx Self Tapping Screw, 1/4-14 x .625

24 710-3217 Torx Screw, #8-32 x .375

25 712-0142 Hex Nut, 8-32

26 731-0069 Dash Panel (Manual PTO), 4-style

27 731-0072 Parking Brake Button

28 731-1857 Throttle Control Lever

29 731-2106 Cruise Control Button

30 747-1155 Brake/Cruise Pivot Rod

31 749-1087 Dash Support Tube

32 731-2232 Intake Bellow (Intek Single)

731-2234 Intake Bellow (Intek Twin)

33 751-0603 Fuel Cap

34 751-0659 Fuel Tank (Two Gallon, Shown)

751-0658 Fuel Tank (Three Gallon)

35 725-1745 Ignition Key

36 746-1084 Choke/Throttle Cable (Intek Single)

746-1085 Choke Cable (Intek Twin)

746-1088 Choke Cable (Kohler)

REF.

NO. PART

NO. DESCRIPTION

28

Model 604

49

39

46

6

45

45

41

37

43

42

36

47

48

44 16

30

28

35

32

38

33 27

31

34

50

51

11

28

29

14

8

13

9

17

21

22

10

20

12

23

21

22

24

6

2

8

14

18

25

19

4

5

3

16

4

1

16

9

7

17

15

5

19

8

14

6

6

29

REF.

NO. PART

NO. DESCRIPTION

1 647-0040 Deck Stabilizer Rod

2 683-0197 Lift Shaft Assembly

3 711-0332 Clevis Pin, .5 x .78

4 712-0206 Hex Nut, 1/2-13

5 712-0431 Flange Lock Nut, 3/8-16

6 712-3004A Flange Lock Nut, 5/16-18

7 712-3083 Hex Nut, 1/2-13

8 714-0104 Internal Cotter Pin

9 714-0111 Cotter Pin

10 716-0106 E-ring

11 720-0311 Handle Grip

12 732-0874 Torsion Spring

13 732-0934 Lift-assist Spring, 1.15 x 5.99

(Found on Units w/ 46-inch Decks Only)

14 736-0275 Flat Washer, 5/16

15 736-0921 Lock Washer, 1/2

16 736-3019 Flat Washer, .31 x 1.062 x .134

17 736-3084 Flat Washer, .51 x 1.12 x .06

18 738-0138 Hex Cap Screw, 5/16-18 x .62

19 738-0380 Shoulder Screw, .5 x .27, 3/8-16

20 741-0225 Hex Flange Bearing

21 741-0715 Snap Flange Bearing

22 746-0968 Lift Cable, 16.16

23 747-1111 Lift Handle

24 756-1154 Roller Pulley

25 783-0678 Arm Lift

26 783-0720 Deck Stabilizer Bracket

27 710-0260 Carriage Bolt, 5/16-18 x .62

28 710-0604 Self Tapping Screw, 5/16-18 x .625

29 710-0895 Self Tapping Screw, 1/4-15 x .75

30 731-1990 Lift Lever Cover

31 731-2104 Shift Lever Cover w/ Cup Holder

32 738-0155 Shoulder Screw, .437 x 1.62

33 783-0677 Lift Adjustment Bracket

34 783-0685 Fender

35 783-0715 Seat Mounting Bracket

36 710-1268 Screw, #10-16 x .375

37 712-3027 Hex Flange Lock Nut, 1/4-20

38 720-0309A Seat Adjuster Grip

39 731-1989 Spacer

40 732-0499 Compression Spring, .41 x 1.5

41 736-0175 Spring Washer, .265 x .562 x .025

42 736-0204 Flat Washer, .344 x .62 x .03

43 738-0137A Shoulder Screw, .340 x .285,1/4-20

44 738-1007 Shoulder Screw, .50 x .50, 3/8-16

45 783-0611 Seat Stop

46 783-0738 Seat Pivot Bracket

47 783-0739 Seat Adjustment lever

48 783-0753 Seat Adjustment Selector

49 757-0348A Seat, Black w/ Drain Holes

50 735-0657 LH Foot Pad

51 735-0656 RH Foot Pad

726-3046 Foot Pad Clips (Not Shown)

REF.

NO. PART

NO. DESCRIPTION

NOTE: For painted parts, please refer to

the list of color codes below. Please add

the applicable color code, wherever

needed, to the part number to order a

replacement part. For instance, if a part

numbered 700-xxxx is painted Powder

Black, the part number to order would be

700-xxxx-0637.

MTD Red: 0638

Oyster Gray: 0662

Powder Black: 0637

Lift Assembly

30

Model 604

1

2

2

2

5

3

9

6

38

8

10

12

13

11 13

14

15

16

17

18

19

21

20

22

20

24

23

4

25

26

27

28

29

33

31

31

30

29

32 35

34

30

32

35

36

33

37

39

40

11

41

42

13

7

43

42

31

REF.

NO. PART

NO. DESCRIPTION

1 683-0263 Lower Frame Assembly

2 710-0604 Self-tapping Screw, 16-18 x .625

3 783-0726 RH Pivot Support Bracket

4 783-0727 LH Pivot Support Bracket

5 783-0728 Pivot Bar Bracket

6 710-0514 Hex Cap Screw, 3/8-16 x 1 (Grade 5)

7 711-1291 LH Drag Link

8 711-1292 RH Drag Link

9 712-0240 Jam Nut, 7/16-20 (Grade 2)

10 712-0241 Hex Nut, 3/8-24 (Grade 2)

11 712-0431 Flange Lock Nut, 3/8-16

12 712-0459 Flange Lock Nut, 7/16-20

13 712-3004A Flange Lock Nut, 5/16-18

14 717-1550 Steering Gear, 11/90 Ratio

15 717-1554 Steering Pinion Gear

16 723-0448A Ball Joint, 7/16-20

17 736-0169 Lock Washer, 3/8

18 736-3084 Flat Washer, .51 x 1.12 x .06

19 738-1001 Steering Shaft, .625 OD x 24.4

20 741-0475 Plastic Bushing, .38 ID

21 741-0656 Hex Flange Bearing, 5/8

22 748-0416 Shoulder Spacer, .38 ID

23 631-0027 Steering Wheel

24 731-0220 Steering Wheel Cap

25 638-0019 LH Axle Assembly, .625 Diameter

638-0021 LH Axle Assembly, .625 / .750 Diameter

26 638-0020 RH Axle Assembly, .625 Diameter

638-0022 RH Axle Assembly, .625 / .750 Diameter

27 683-0128A Pivot Bar

28 712-0431 Flange Lock Nut, 3/8-16

29 714-0470 Cotter Pin

30 726-0214 Push Cap, 5/8

726-0341 Push Cap, 3/4

31 736-0162 Flat Washer, .64 x 1.0 x .12

32 736-0187 Flat Washer, .64 x 1.24 x .06

736-0316 Flat Washer, .78 x 1.59 x .06

33 736-0285 Flat Washer, .635 x 1.589 x .06

34 738-1011 Shoulder Screw, .5 x 2.2, 3/8-16

35 741-0659 Flange Bearing, .632 ID x .937 OD

741-0660 Flange Bearing, .760 ID x .937 OD

36 634-0105A Wheel Assembly Complete, 15 x 6 x 6

634-0172 Rim Only

734-0255 Air Valve (Not Shown)

734-1731 Tire Only, Square Shoulder

741-0487A Plastic Flange (Not Shown)

741-0706 Plastic Flange w/ Fitting (Not Shown)

37 734-0484A Hub Cap

38 783-0653 Steering Support Bracket

39 738-1020 Shoulder Screw, .625 x .50, 7/16-20

40 736-0331 Bell Washer, .39 x 1.13 x .062

41 738-0140 Shoulder Screw, .435 x .178, 5/16 x .56

42 736-0242 Bell Washer, .34 x .872

43 710-0643 Hex Bolt, 5/16-18 X 1

REF.

NO. PART

NO. DESCRIPTION

NOTE: For painted parts, please refer to

the list of color codes below. Please add

the applicable color code, wherever

needed, to the part number to order a

replacement part. For instance, if a part

numbered 700-xxxx is painted Powder

Black, the part number to order would be

700-xxxx-0637.

MTD Red: 0638

Oyster Gray: 0662

Powder Black: 0637

Steering Assembly

32

Model 604

4

22

13

5

1

12

2

21

2

21

13

19

13

18

36

11

28

31

7

38

46 47

40

844 43 12 43

12

37

47

15

17

19

19

50

26

27

24

10

49

19

33

23

30

32

20

42

14

39

16

61

3

9

13

76

62

13

69

53

54

25

41

57 58

19 23

64

68 73

71 70

58

65

56

56

58

33

77

72

5863

55 69

60 66

59

21

75

33

52

31

68 64 23

23

35

78

79

34

80 81

82

6

33

REF.

NO. PART

NO. DESCRIPTION

1 17839 Shift Lever Bracket

2 17840 Transaxle Mounting Bracket

3 618-0386 Single-speed Transmission Assembly

4 631-0009 Shifter Knob

5 647-0041 Shift Lever

6 656-0048 Variable-speed Pulley Assembly

7 656-0051 Transmission Pulley, 8.5 x .5-36

8 683-0251 Double-idler Bracket

9 710-0189 Hex Cap Screw, 5/16-18 x 3

10 710-0227 Self Tapping Screw, #8-18 x .5

11 710-0347 Hex Cap Screw, 3/8-16 x 1.75

12 710-0599 Self Tapping Screw, 1/4-20 x .5

13 710-0604 Self Tapping Screw, 5/16-18 x .625

14 710-0642 Self Tapping Screw, 1/4-20 x .75

15 710-3011 Hex Cap Screw, 3/8-16 x 2.25

16 711-0677 Ferrule, 5/16-18

17 712-0241 Hex Nut, 3/8-24

18 712-0378 Hex Nut, 7/16-20

19 712-0431 Flange Lock Nut, 3/8-16

20 712-0798 Hex Nut, 3/8-16

21 712-3004A Flange Lock Nut, 5/16-18

22 712-3008 Jam Nut, 3/8-16

23 714-0111 Cotter Pin

24 714-0149B Internal Cotter Pin

25 723-0156 Ball Joint, 3/8-24

26 725-1644 Short Spring Switch

27 726-0320 Insulator Nut Plate

28 732-0384 Extension Spring, .62 Dia. x 6.12

29 732-0525 Compression Spring Clip

30 732-0716 Extension Spring, .59 OD x 4

31 732-0963 Extension Spring, .50 Dia. x 6.37

(hooks to flange, 783-0650, in frame)

32 736-0105 Bell Washer, .401 x .87 x .063

33 736-0140 Flat Washer, .385 x .62 x .063

34 736-0169 Lock Washer, 3/8

35 736-0275 Flat Washer, 5/16

36 736-0407 Bell Washer, .45 x 1.0 x .602

37 736-3010 Flat Washer, .407 x .812 x .135

38 738-0322 Shoulder Screw, .625 x .217

39 747-1122 Brake Rod

40 747-1123 Belt Guard

41 747-1127 Idler Adjustment Rod, 3/8

42 747-1156 Shift Rod

43 747-1160 Belt Guard Rod

44 748-0416 Shoulder Spacer, .38 ID

45 754-0467 Variable-speed Belt

46 754-0468 Drive Belt

47 756-0981 Flat Idler, 2.75 OD

48 783-0637 Shift Lever Support

49 783-0667 Transmission Torque Bracket

50 783-0669 Idler Bracket

51 783-0714 Adjustable Shift Bracket

52 647-0031 Brake Control Assembly

53 647-0032 Speed Control Assembly

54 683-0266 AutoDrive™ Pedal Assembly

55 710-1135 Self Tapping Screw, 5/16-18 x 2.5

56 711-0736 Ferrule, 1/4-20

57 711-1363 Pin, 3/8-16 x 2.43

58 714-0104 Cotter Pin

59 732-0437 Compression Spring, .34 OD x 1.0

60 732-0955 Extension Spring, .50 OD x 1.41

61 735-0662 AutoDrive™ Pedal Pad

62 735-3049 Brake Pedal Pad

63 736-0140 Flat Washer, .281 x .5 x .0625

64 736-0187 Flat Washer, .64 x 1.24 x .06

65 736-0204 Flat Washer, .344 x .062 x .03

66 738-0155 Shoulder Screw, .437 x 1.62

67 738-0507B Shoulder Screw, .5 x .434

68 741-0225 Hex Flange Bearing

69 741-3065A Split Hex Flange Bearing

70 747-1137 Cruise Control Rod

71 747-1138 Brake Lock Control Rod

72 748-0413 Cruise Latch

73 748-0415 Spacer, 5/16 x 1.54

74 783-0653 Stearing Support Bracket

75 783-0732 AutoDrive™ Lockout Bracket

76 783-0773 Brake Pedal

77 783-0780 Neutral Return Bracket

78 683-0263 Lower Frame Assembly

79 783-0668 Hitch Plate

80 736-0242 Bell Washer, .34 x .872

81 710-0627 Hex Cap Screw, 5/16-24 x .75

82 634-0177 Wheel Assembly Complete, 20 x 10 x 8

634-0104 Wheel Assembly Complete, 20 x 8 x 8

634-0077 Rim Only

734-0255 Air Valve (Not Shown)

734-1873 Tire Only, 20 x 10 x 8, Square Shoulder

734-1730 Tire Only, 20 x 8 x 8, Square Shoulder

REF.

NO. PART

NO. DESCRIPTION

Drive System

34

Model 604

33

22

13

23 17

1

10

28

513

29

4

35

36

34

10

23

20

9

32

3

19

27

10

18

14

2

12

5

59

5

24

6

45

15

21 25

11

26

31

16

56

5

549

57

55

58

38

54

53

51

49

10

47

52

48 46

7

44

30

41

39

37

38

43

40

60

61

62

63

63

8

35

REF.

NO. PART

NO. DESCRIPTION

1 683-0278 PTO Engagement Link w/ Weld Pin

2 683-0282 PTO Actuator Bracket w/ Weld Nut

3 710-0514 Hex Cap Screw, 3/8-16 x 1.0 (Grade 5)

4 710-0597 Hex Cap Screw, 1/4-20 x 1.0 (Grade 5)

5 710-0604 Self Tapping Screw, 5/16-18 x .625

6 710-1260A Self Tapping Screw, 5/16-18 x .75

7 710-3011 Hex Cap Screw, 3/8-16 x 2.25 (Grade 5)

8 710-3180 Hex Cap Screw, 5/16-18 x 1.75 (Grade 5)

9 710-3199 Hex Cap Screw, 1/4-20 x 1.5 (Grade 5)

10 712-0431 Flange Lock Nut, 3/8-16

11 712-3004A Flange Lock Nut, 5/16-18

12 712-3010 Hex Nut, 5/16-18

13 712-3027 Hex Flange Lock Nut, 1/4-20

14 714-0111 Cotter Pin

15 725-1657A Snap Mount Safety Interlock Switch

16 731-2111 PTO Knob

17 732-0977 Extension Spring, .62 OD x 2.16

18 732-0978 Extension Spring, 1.2 OD x 3.638

19 736-0140 Flat Washer, .385 x .62 x .063

20 736-0176 Flat Washer, .25 x .93 x .12

21 736-0272 Flat Washer, .51 x 1.0 x .60

22 738-1021 Shoulder Screw, .5 x .27, 3/8-16

23 738-1125 Shoulder Nut, 1/4-20

24 741-0708 Hex Split Flange Bearing, .50 ID

25 747-1112 PTO Engagement Handle

26 747-1114 PTO Engagement Lever

27 747-1174 PTO Actuator Adjuster Link

28 748-0416 Shoulder Spacer, .38 ID

29 748-0421 Arm Spacer, .68

30 756-0627 Flat Idler Pulley, 3.5 OD

31 783-0744 Stop Bracket

32 783-0796 PTO Actuator Bracket

33 783-0797 PTO Engagement Arm

34 783-0798 PTO Engagement Link

35 783-0799 PTO Arm

36 783-0806 Deck Stop

37 710-0561 Hex Cap Screw, 7/16-20 x 2.5 (Grade 5)

38 710-0599 Self Tapping Screw, 1/4-20 x .5

39 736-0171 Lock Washer, 7/16

40 736-0322 Flat Washer, .45 x 1.25 x .164

41 750-0956 Spacer, 1.01 x 1.4 x .825

42 756-1158 Engine Pulley, 5.56 Dia. x 3.56 Dia.

43 756-1164 Pulley Sheave

44 754-0472 PTO Belt (42-inch Decks)

754-0476 PTO Belt (46-inch Decks)

45 683-0263 Lower Frame Assembly

46 723-0444 Battery Strap

47 732-0755 Compression Spring, .1.314 OD x 2.35

48 732-0956 Compression Spring, .66 OD x 1.5

49 738-1014 Shoulder Screw, .5 x 1.25, 3/8-16

50 783-0349 Battery Tray

51 783-0668 Hitch Plate

52 783-0733 Spacer Cup, 1.5 OD

53 725-1426 Solenoid, 12-Volt, 100 Amp

54 736-0222 Lock Washer, 1/4

55 725-1747 Safety Interlock Plunger Switch

56 738-1020 Shoulder Screw, .625 x .5, 7/16-20

57 736-0407 Bell Washer, .45 x 1.0 x .062

58 712-0459 Flange Lock Nut, 7/16-20

59 783-0653 Steering Support Bracket

60 725-1706 12-volt Battery, 270 CCA

61 712-3044 Wing Nut, 1/4-20

62 712-0271 Hex Sems Nut, 1/4-20

63 710-0751 Hex Cap Screw, 1/4-20 x .62

REF.

NO. PART

NO. DESCRIPTION

NOTE: For painted parts, please refer to

the list of color codes below. Please add

the applicable color code, wherever

needed, to the part number to order a

replacement part. For instance, if a part

numbered 700-xxxx is painted Powder

Black, the part number to order would be

700-xxxx-0637.

MTD Red: 0638

Oyster Gray: 0662

Powder Black: 0637

Power Take-off System

36

Model 604

42-inch Deck

46-inch Deck

5

1

1

17

13

17

11

30

37

30

31

8

6

19

12

26

25

29

52

22

53

55

50

36

19

26

25

29

23

32

20

23

32

21

27 9

18

7

35

28

26

15

24

16

14

2

34

18

3

33

38

10

3

10

10

10

17

40

11

13

42

17

19

26

25

44

29

23

32

20

4

23

21

9

27

32

52

53

54

51

19

48

48

12

45

26

25

29

44

43

47

41

22

49

49

56

57

37

REF.

NO. PART

NO. DESCRIPTION

1 17982 Reinforcement Spindle Plate

2 618-0240 Spindle Assembly, 5 Dia.

756-0959 Pulley Only

3 618-0241 Double Pulley Spindle Assembly

756-0603 Double Pulley Only

4 683-0254 Deck Adjustment Bracket w/ Weld Nut

5 683-0265 46-inch Deck Shell

6 710-0167 Carriage Screw, 1/4-20 x .5

7 710-0347 Hex Cap Screw, 3/8-16 x 1.75

8 710-0514 Hex Cap Screw, 3/8-16 x 1.0

9 710-0528 Hex Cap Screw, 5/16-18 x 1.25

10 710-0599 Self Tapping Screw,1/4-20 x .5

11 710-0650 Self Tapping Screw, 5/16-18 x .875

12 710-0751 Hex Cap Screw, 1/4-20 x .62

13 710-1260A Self Tapping Screw, 5/16-18 x .75

14 712-3288 Hex Cap Screw, 1/4-20 x 1.62

15 712-0241 Hex Nut, 3/8-24

16 712-0291 Center Lock Nut, 1/4-20

17 712-0417A Hex Flange Nut, 5/8-18

18 712-0431 Flange Lock Nut, 3/8-16

19 712-3027 Hex Flange Lock Nut, 1/4-20

20 714-0104 Internal Cotter Pin, .072 x 1.12

21 717-1553 Deck Adjustment Gear

22 731-1032A Side Discharge Chute Assembly

23 732-0306 Compression Spring, .406 x .531 x 1.75

24 732-0594A Extension Spring, .91 x 7.33

25 734-0973 Deck Wheel, 5 x 1.38

26 736-0105 Bell Washer, .401 x .87 x .063

27 736-0119 Lock Washer, 5/16

28 738-0347 Shoulder Spacer, .625 x .169

29 738-0373 Shoulder Spacer, .498 x 1.53

30 742-0611 Three-in-one Blade, Star Center, 16.28

31 742-0612 Three-in-one Blade, Star Center, 14.88

32 747-1116 Deck Release Pin

33 754-0349 Deck Belt

34 756-0627 Flat Idler Pulley, 3.5 OD

35 783-0139 Idler Bracket

36 783-0141 Center Deck Skirt

37 783-0142 RH Deck Skirt

38 783-0747 LH Belt Cover

39 783-0805 RH Belt Cover

40 16606 Retainer Hook

41 618-0324 Spindle Assembly, 5.75 Dia

756-1151 Pulley Only

42 683-0198 42-inch Deck Shell

43 710-0604 Self Tapping Screw, 5/16-18 x .625

44 712-0181 Top Lock Jam Nut, 3/8-16

45 712-0271 Hex Sems Nut, 1/4-20

46 712-3006 Hex Nut, 1/4-20

47 731-2231 Belt Cover

48 736-0270 Bell Washer, .265 x .75 x .062

49 742-0616 Three-in-one Blade, Star Center, 21.23

50 731-1636 Mulch Plug, 46-inch Decks

51 731-1643A Mulch Plug, 42-inch Decks

52 712-3087 Wing Nut, 1/4-20

53 712-0291 Center Lock Nut, 1/4-20

54 710-0106 Hex Cap Screw, 1/4-20 x 1.25

55 710-0578 Screw, 1/4-20 x 1.5

56 753-0852 46-inch Deck Assembly Complete

(w/o mulch kit)

57 753-0851 42-inch Deck Assembly Complete

(w/o mulch kit)

REF.

NO. PART

NO. DESCRIPTION

NOTE: For painted parts, please refer to

the list of color codes below. Please add

the applicable color code, wherever

needed, to the part number to order a

replacement part. For instance, if a part

numbered 700-xxxx is painted Powder

Black, the part number to order would be

700-xxxx-0637.

MTD Red: 0638

Oyster Gray: 0662

Powder Black: 0637

Cutting Decks

38

Model 604

Kohler

Briggs & Stratton

Intek Twin

Single-cylinder

97

11

(for choke)

13

4

97

11

(for choke)

13

9

12

(for throttle)

6

9

22

18

19 20

8

10

14

10

5

10

5

16

15

1

(deflector must

face forward)

1820 19

14

1

(deflector must

face forward)

24

27

28

21

23

26

17

5

35

3

2

21

3

2

21

25

36

39

Engine Accessories

Briggs & Stratton

Intek Single

3

2

18

19 20

REF.

NO. PART

NO. DESCRIPTION

1 710-0148 Self Tapping Screw, #8-32 x .375

2 710-0599 Self Tapping Screw, 1/4-20 x .5

3 710-0604 Self Tapping Screw, 5/16-18 x .625

4 710-1237 Screw, #10-32 x .625

5 710-1314 Socket Cap Screw, 5/16-18 x .625

6 710-1315 Self Tapping Screw, 3/8-16 x 1.25

7 712-0798 Hex Nut, 3/8-16

8 721-0460 Exhaust Gasket (Intek Twin)

9 726-0205 Hose Clamp

10 736-0119 Lock Washer, 5/16

11 736-0221 Flat Washer, 3/8 x .56 x .018

12 751B221535 Casing Clamp

13 751-0535 Fuel Line Hose

14 751-0564 Muffler Deflector

15 751-0616 Muffler, Twin Inlet

16 751-0650 RH Exhaust Pipe (Intek Twin)

17 751-0651 LH Exhaust Pipe (Intek Twin)

18 751-3140 Oil Drain Valve

19 751-3141 Oil Drain Hose

20 751-3142 Oil Drain Cap

21 783-0615 Muffler Heat Shield

22 783-0625A Engine Heat Shield

23 710-3206A Hex Cap Screw, M8-1.25 x 25

24 712-3086 Flange Nut, M8-1.25

25 721-0375 Exhaust Gasket (Kohler)

26 736-0607 External Lock Washer, 5/16

27 751-0621 Exhaust Pipe (Kohler)

28 751-0617 Muffler, Single Inlet

29 712-0271 Hex Sems Nut, 1/4-20 (for starter cable)

30 721-0208 Exhaust Gasket (Intek Single)

31 732-0966 Extension Spring, .275 x 1.25

32 751B213146 Casing Clamp

33 751-0619 Exhaust Pipe (Intek Single)

34 746-1084 Throttle/Choke Cable (Intek Single)

35 746-1086 Throttle Cable (Intek Twin)

36 746-1087 Throttle Cable (Kohler)

REF.

NO. PART

NO. DESCRIPTION

913

931

32

4

34

14

1

(deflector must

face forward)

6

18

20

28

30

33

21

29

MANUFACTURER’S LIMITED WARRANTY FOR:

For TWO YEARS from the date of retail purchase

within the United States of America, its possessions

and territories, MTD PRODUCTS INC will, at its

option, repair or replace, for the original purchaser,

free of charge, any part or parts found to be

defective in material or workmanship. This warranty

covers units which have been operated and

maintained in accordance with the operating

instructions furnished with the unit, and which have

not been subject to misuse, abuse, commercial use,

neglect, accident, improper maintenance or

alteration.

Normal wear parts or components thereof are

subject to separate terms as noted below in the “No

Fault Ninety Day Consumer Warranty” clause.

All normal wear part failures will be covered on this

product for a period of 90 days regardless of cause.

After 90 days, but within the two year period, normal

wear parts failures will be covered ONLY IF caused

by defects in material or workmanship of OTHER

component parts. Normal wear parts are defined as

batteries*, belts, blades, blade adapters, grass bags,

rider deck wheels, seats, snow thrower skid shoes,

shave plates and tires.

How to obtain service: Warranty service is

available, with proof of purchase, through your local

authorized service dealer. To locate the dealer in

your area, please check the yellow pages or contact

the Customer Support Department of MTD

PRODUCTS INC, P. O. Box 368022, Cleveland,

Ohio 44136-9722.

Phone 1 (330) 273-4683. The return of a complete

unit will not be accepted by the factory unless prior

written permission has been extended by the

Customer Support Department of MTD PRODUCTS

INC.

Transportation charges: Transportation charges

for the movement of any power equipment unit or

attachment are the responsibility of the purchaser.

Units exported out of the United States: MTD

PRODUCTS INC does not extend any warranty for

products sold or exported outside of the United

States of America, its possessions and territories,

except those sold through MTD PRODUCTS INC’s

authorized channels of export distribution.

Other Warranties:

1. The engine or component parts thereof carry

separate warranties from their manufacturers.

Please refer to the applicable manufacturer’s

warranty on these items.

2. *Batteries are covered by a 90-day replacement

warranty.

3. Log splitter pumps, valves and cylinders or

component parts thereof are covered by a one

year warranty.

4. All other warranties, express or implied,

including any implied warranty of merchantability

or fitness for a particular purpose, are hereby

expressly disclaimed in their entirety.

5. The provisions as set forth in this warranty

provide the sole and exclusive remedy of MTD

PRODUCTS INC’s obligations arising from the

sales of its products. MTD PRODUCTS INC will

not be liable for incidental or consequential loss

or damage.

How state law relates to this warranty: This

limited warranty gives you specific legal rights, and

you may also have other rights which vary from state

to state. Certain disclaimers are not allowed in some

states and therefore they may not apply to you

under all circumstances.

NOTE: This warranty does not cover routine

maintenance items such as lubricants, filters, blade

sharpening and tune-ups, or adjustments such as

brake adjustments, clutch adjustments or deck

adjustments. Nor does this warranty cover normal

deterioration of the exterior finish due to use or

exposure.