MTD 21AA412A000 User Manual REAR TINE TILLER Manuals And Guides 1109378L

User Manual: MTD 21AA412A000 21AA412A000 MTD REAR TINE TILLER - Manuals and Guides View the owners manual for your MTD REAR TINE TILLER #21AA412A000. Home:Lawn & Garden Parts:MTD Parts:MTD REAR TINE TILLER Manual

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Safe Operation

Practices • Set-Up • Operation

• Maintenance

• Service • Troubleshooting

• Warranty

Rear Tine Tiller m Moclel Series 410

MTD LLC, P.O. BOX 361131 CLEVELAND, OHiO 44136-0019

PrintedIn USA

FormNo.769-03700
(November29,2007)

ToTheOwner
ThankYou
Thank you for purchasing

a Garden Tiller manufactured

This product has met the rigid safety standards
Power Equipment
Institute and an independent

MTD LLC. It was carefully engineered
to provide excellent
performance
when properly operated and maintained.
Please read this entire
It instructs
maintain
persons

manual

prior to operating

you how to safely and easily set up, operate
your machine.

laboratory.
or contact

and

the machine,

carefully

product

in this manual

information

is relative

available

the

Throughout
machine

to the most recent

at the time of printing.

Review

Support

telephone

address

can be found

this manual,

all references

manufacturer

is responsible

satisfaction

at all

to right and left side of the

from the operating

issues with regards to performance,

position

for all engine-related

power-rating,

specifications,

warranty and service. Please refer to the engine manufacturer's
Owner's/Operator's
Manual, packed separately with your

Manual may cover a range of product specifications
for various
models. Characteristics
and features discussed and/or illustrated
may not be applicable

MTD's Customer

address and mailing

are observed

The engine

this manual frequently to familiarize yourself with the machine,
its features and operation.
Please be aware that this Operator's

in this manual

website

concerning

MTD service dealer

this page. We want to ensure your complete
times.

recommended
safety practices at all times. Failure to do so could
result in personal injury or property damage.
All information

or questions

phone your local authorized

us directly.

numbers,

Please be sure that you, and any other

who will operate

If you have any problems

the machine,

the equipment.

of the Outdoor
testing

machine,

for more information.

to all models. MTD LLC

reserves the right to change product specifications,
designs and
equipment
without notice and without incurring obligation.

Table of Contents
Safe Operation

Practices ........................................

Assembly
Controls

& Set-Up ..................................................
& Features ................................................

6
10

Operation

................................................................

up and operating

in the provided

your new equipment,

site, Customer Support
service dealer.

area to the right. You can locate the

you seek technical
Department,

.....................................................

Parts .................................................

71F1F1F1F1F1F1F1F1

please

and record the

model plate by standing at the operator's position and looking
down at the front right corner of the tine shield. This information
will be necessary, should

Troubleshooting

MODEL NUMBER

locate the model plate on the equipment
information

13
15

Replacement

RecordProductInformation
Before setting

Maintenance
&Adjustment
.................................
Service .....................................................................

support

SERIALNUMBER

via our web

EEEEEEEEEEE

or with a local authorized

CustomerSupport
Please

do NOT return

If you have difficulty
this machine,

the machine

assembling

to the retailer

this product

you can seek help from

or dealer

without

or have any questions

the experts.

Choose

from

first contacting
regarding

the options

the controls,
below:

Visit us on the web at www.mtdproducts.com
Call a Customer
Write

Support

Representative

at (800) 800-7310

us at MTD LLC • P.O. Box 361131 • Cleveland,

or (330) 220-4683

OH • 44136-0019

our Customer
operation,

Support

Department.

or maintenance

importantSafeOperationPractices
WARNING!

This symbol

could endanger
all instructions

points

the personal

safety and/or

in this manual

with these instructions

out important

before

property

attempting

may result in personal

When you see this symbol.

safety instructions
of yourself

to operate

which,

if not followed,

and others. Read and follow

this machine.

Failure to comply

injury.

HEED ITS WARNING!

CALIFORNIA

PROPOSITION

WARNING! Engine Exhaust, some of its constituents,
and certain vehicle components
contain or emit chemicals known to State of California to cause cancer and birth defects
or other reproductive

WARNING!

Battery

compounds,

harm.
posts, terminals,

chemicals

known

and related

accessories

to the State of California

contain

lead and lead

to cause cancer and reproductive

harm. Wash hands after handling

DANGER! This machine
this manual.
operator

was built to be operated

As with any type of power

according

equipment,

carelessness

can result in serious injury. This machine

toes and feet. Failure to observe

the following

to the safe operation

is capable

practices

or error on the part of the

of amputating

safety instructions

fingers,

hands,

could result in serious

injury or death.

Training
1.

Read, understand,
machine

all instructions

and in the manual(s) before

assemble
future

and follow

and operate.

and regular

attempting

Keep this manual

reference

on the
to

in a safe place for

and for ordering

replacement

Be familiar with all controls and their proper operation.
Know how to stop the machine and disengage them

Never allow children under 14 years of age to operate this
machine. Children 14 and over should read and understand
the instructions

and safe operation

and on the machine
adult.
4_

and be trained

in this manual

and supervised

by an

Keep the area of operation

this machine

without

clear of all persons,

and pets. Stop machine

proper

particularly

if anyone

enters the

Preparation
Thoroughly

Disengage

levers and shift (if provided)

clutch

starting

can be

this machine

in bare

into neutral

the engine.

Never leave this machine

unattended

with the engine

Never attempt
running,

to make any adjustments

except where specifically

operator's

while

recommended

engine

inspect

the area where the equipment

is to

which

could be tripped

over and cause personal

in the

manual.

SafeHandling 0f Gas01ine:
in handling

injury

gasoline.

or property

damage

Gasoline is extremely

use extreme

flammable

care

and the

vapors are explosive. Serious personal injury can occur when
gasoline is spilled on yourself or your clothes which can ignite.
Wash your skin and change

clothes immediately.

Use only an approved

Never fill containers

gasoline

container.

inside a vehicle or on a truck

or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle

be used. Remove all stones, sticks, wire, and other foreign
objects
injury.

parts. Never operate

To avoid personal

Never allow adults to operate
instruction.

small children
a rea.

practices

clothes or jewelry

caught in moving
feet or sandals.

running.
5.

quickly.
3.

work shoes and close fitting

slacks and shirt. Loose fitting

("N") before

parts.
2.

Wear sturdy, rough-soled

before filling.

When practical,

equipment

11.

After striking

dispenser

nozzle.

12.

Keep the nozzle in contact

with the rim of the fuel

tank or container

at all times until fueling

opening

complete.

Do not use a nozzle lock-open

Extinguish

all cigarettes,

Never remove

Disengage

all clutch levers (if fitted)

handles).

device.

before unclogging
inspections.

cigars, pipes and other

to cool at least two

Never over fill fuel tank. Fill tank to no more than 1/2
bottom

15.

Use caution

when tilling

underground

utilities.

damage

Replace gasoline

If gasoline is spilled, wipe it off the engine and
equipment.
Move unit to another area. Wait 5

cap and tighten

before starting

securely.

and remove any fuel soaked debris.

Never store the machine

or fuel container

an unusual

damage.

parts can amputate

Do not operate machine
alcohol or drugs.

clothes

while

parts. Contact

Keep bystanders

under the influence

away from the machine
if anyone

while

Exercise extreme

caution

Never operate

the machine

20.

Use only attachments

If situations

Exercise caution

Look down

working
2.

occur which

are not covered

the machine.

machine

towards

use
for

dealer..

to cool at least five minutes

before

with safety devices. Check their

regularly.

Check bolts and screws for proper tightness at frequent
intervals to keep the machine in safe working condition.
inspect

Before cleaning,

machine

repairing,

for any damage.

or inspecting,

stop the engine

and make certain the tines and all moving parts have
stopped. Disconnect the spark plug wire and ground it

speeds on

in safe

operation

against the engine to prevent
5.

Do not change
the engine.

the engine

The governor

unintended

governor
controls

starting.

settings

or over-speed

the maximum

safe

speed of engine.

or falling.

you.

found

Maintain

or replace

in this

Follow this manual
transporting,

labels, as

for safe loading,

unloading,

and storage of this machine.

the tines at all times.
Always refer to the operator's
if the machine

IMPORTANT SAFE OPERATION

safety and instruction

necessary.
7.

to the instructions

and keep feet well away from

SECTION 2 --

injury.

Support

and accessories

Never tamper

Also, visually

on or crossing

and behind and use care when in reverse or

Start the engine according

by the

in this manual,

Contact Customer

attachments

Allow a machine
proper

surfaces.
to avoid slipping

approved

order.

storing.

and accessories

Failure to do so can result in personal

Keep machine,

operating
8.

while the engine is running.

assistance and the name of you nearest servicing

it is in

hazards or traffic.

at high transport

for

and operating.

Maintenance& Storage

enters the area.

when operating

Inspect thoroughly

before starting

Never pick up or carry machine

Stop the machine

hard or slippery

the engine.

Repair any damage

noise or

the spark plug wire

19.

Be careful when tilling in hard ground. The tines may catch
in the ground and propel the tiller forward. If this occurs,

manual

it against

disconnect

Keep all shields, guards, and safety devices in place and
operating
properly.

with

hands and feet.

Never operate this machine without good visibility or light.
Always be sure of your footing and keep a firm hold on the
handles.

pulling

start making

to till soil

18.

not carry passengers.

10.

should

care and good judgement.

gravel surfaces. Stay alert for hidden

injury.

stop the engine,

manufacturer.

Do not put hands or feet near rotating

and

tines can cause property

inside

is an open flame, spark or pilot light

let go of the handle bars and do not restrain
6.

near fences, buildings
Rotating

If the machine

21.

operation.
5.

hot and can cause a burn. Do

17.

the engine.

Operation

area.

an odorless

by attempting

dryer or other gas appliances.

monoxide,

Do not overload machine capacity
too deep at too fast of a rate.

vibration,

as on a water heater, space heater, furnace,

or in a poorly ventilated

carbon

become

or personal

and ground

the rotating

stop

any adjustments,

16.

To reduce fire hazards, keep machine free of grass,
leaves, or other debris build-up. Clean up oil or fuel

where there

the

gas.

Muffler and engine
not touch.

of filler neck to allow space for

spillage

indoors

contains

14.

fuel expansion.

minutes

(behind

gas cap or add fuel while the engine

is hot or running. Allow engine
minutes before refueling.

inch below

and stop engine

position

the tines, making

Never run an engine
Engine exhaust

indoors.

Repair

Wait until the tines come to a complete

and deadly

disconnect

against the engine.

before you leave the operating

13.

Never fuel machine

stop the engine,

Thoroughly
inspect the machine for any damage.
the damage before starting and operating.

object,

If this is not possible, then refuel such equipment
on
a trailer with a portable container, rather than from a

sources of ignition.

a foreign

the spark plug wire and ground

gasoline
d_

remove gas-powered

from the truck or trailer and refuel it on the ground.

PRACTICES

manual

for important

is to be stored for an extended

period.

details

If the fuel tank has to be drained,

10.

Observe

proper

etc. to protect

disposal

do this outdoors.

laws and regulations

AverageUsefulLife

for gas, oil,

the environment.

EPA emission

are certified
regulations

hours of operation.

to comply

with California

and federal

for SORE (Small Off Road Equipment)

are certified

to operate

on regular

may include

the following

emission

to the Consumer

Products

Safety Commission

(CPSC) and the U.S. Environmental
Protection Agency (EPA),
this product has an Average Useful Life of seven (7) years, or 130

Notice Regarding Emissions
Engines which

According

unleaded
control

gasoline, and

At the end of the Average Useful Life, buy

a new machine or have the machine inspected annually by an
authorized service dealer to ensure that all mechanical and
safety systems are working properly and not worn excessively.
Failure to do so can result in accidents, injuries or death.

systems: Engine

Modification
(EM), Oxidizing Catalyst (OC), Secondary Air
Injection (SAI) and Three Way Catalyst (TWC) if so equipped.

Spark Arrestor

i_l

internal combustion
engine and should not be used
WARNING!
machine isforest-covered,
equipped
with an
on or near anyThis
unimproved
brushcovered
or grass-covered
land unless the
engine's

exhaust

system is equipped

arrester

meeting

applicable

with a spark

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
above is required by law (Section 4442 of the California

the
Public

Resources Code). Other states may have similar laws. Federal laws
apply on federal

lands.

A spark attester for the muffler is available through your
nearest engine authorized
service dealer or contact the service
department,

RO. Box 361131 Cleveland,

WARNING!
follow

Ohio 44136-0019.

Your Responsibility--Restrict

the warnings

and instructions

the use of this power machine

to persons

who read, understand

and

in this manual and on the machine.

SAVE
THESEiNSTRUCTiONS!

SECTION 2 --

IMPORTANT SAFE OPERATION

PRACTICES

Assembly& Set-Up
Contents of Carton
OneTiller
One Depth

Stake

One Handlebar

Assembly

One Shift Rod

One Operator's

Manual

One Engine Operator's Manual

Assembly

Depth Stake

UnpackingInstructions
NOTE: References

to the right or left side of the tiller are

determined

behind

from

the machine

in the operating

position.
1.

plug
wire and Before
groundassembly,
it against disconnect
the engine the
to spark
ARNING!
prevent unintended
starting.

_ll

Remove the staples, break the glue on the top flaps, or cut

Tip the tiller forward

so that it rests on the front

counterweight.

the tape at the end of the carton and peel it along the top
2.

flap to open.
2.

Remove any loose parts included
Operator's

Manual,

Cut the corners and lay the carton
Remove the packing

Roll or slide the tiller out of the carton. Check the carton
thoroughly

the "T" knob from the top of the depth

stake and

the flat washer and hex bolt. Remove the cotter

from the clevis pin. See Fig. 3-1.

etc.).

remove

with the tiller (i.e., the

Unthread

down flat.

Flat Washer

material.

for loose parts.

Extend the control cable and lay it on the floor. Be careful
not to bend or kink the control cable.

NOTE;This

machine

is shipped

without

gasoline

or oil in the

engine. Be certain to service the engine with gasoline and oil
as instructed in the separate Engine Operator's Manual before
operating.

j
Figure 3-1

Raise the tine shield hinge flap assembly
depth

stake assembly

and up through
4.

the tine shield and depth

Secure it with the cotter pin.

Insert the hex bolt into the top hole of the depth
assembly.
the T-knob

the tine shield assembly.

Insert the clevis pin through
stake assemblies.

and insert the

into the slot, under the tine shield

stake

Place the flat washer on the hex bolt and thread
onto the hex bolt. Tighten

Tip the tiller back down

securely. See Fig. 3-1.

so that it rests on the tines.

HandlebarAssembly
1.

Remove the handle adjustment
bracket,

shoulder

crank, flange

bolt, and lock nut from

slots in the pivot

bracket.

and install
3-4.

bracket.

Place the handle assembly into position in the handle pivot
bracket by lining up the upper holes in the handle with the

of the flange nut retainer

over the flange nut securing

nut, retainer

the pivot

Place the hex opening

bracket

the handle adjustment

the lock nut on the lower shoulder

crank

bolt. See Fig.

See Fig. 3-2.

Handle Adjustment
Flange Nut
Retainer Bracket,

Retainer Bracket,
Shoulder Bolt

Handle Adjustment

Crank_

Pivot Bracket

Figure :3-4
5.

Figure
3.

Lift up the handle assembly

3-2
and align the bottom

holes in

the handle assembly with the holes in the pivot bracket.
Insert the shoulder bolt from the left side of the tiller
through

the pivot bracket

_Crank

and the retainer

bracket

GearShift Rod
I.

Remove the T-handle, cotter pin, flat washer and rubber
washer from the end of the gear shift rod.

Slide the rod up through

on the

right hand side of the tiller. See Fig. 3-3.

Pivot the handle assembly into the desired position.
Tighten the bottom bolt, lock nut, and the handle
adjustment lock securely.

the right side of bracket

front of the handle assembly.

on the

See Fig. 3-5.

Retainer Bracket,
Shoulder Bolts
& Lock Nut

T-Handle

Bracket-_,_
Gear Shift

_j
Figure

3-3

SECTION

2 --

ASSEMBLY&

SET-UP

Insert the end of the gear shift rod through the opening in
the top of the shift cover and into the shift bracket. First,
secure the rubber washer then the flat washer and cotter
pin. See Fig. 3-6.

Pull the cable upwards to obtain slack and hook the Zconnector at the end of the cable into the bracket on the
clutch control (beneath the handle panel). Tighten
against the cable bracket. See Fig. 3-8.

the nut

r Shift Rod
Hex Nut
_

Opening

Lock
Washer

Slot il Cable
Bracket

Figure 3=6
4.

Install the nut and T-handle

Figure 3-8

on the gear shift rod.

the clutch cable. Too much tension

may cause it to break.

ClutchCable
1.

NOTE: Do not overtighten

Route the clutch cable underneath

the handle and through

the cable clip. Be careful not to bend or kink the cable. See
Fig. 3-7.

Adjustments
ClutchCable
NOTE:Service

the engine with oil and gasoline

this adjustment.
Refer to the separate
packed with your tiller for instructions.
1.

Position

the tiller so that the front counterweight

a solid object,
Clutch

Cable

before checking

Engine Operator's

Manual

is against

such as a wall. With the gear selection

lever

in NEUTRAL, start the engine. Refer to the Operation
Section for starting instructions.
NOTE: Keep hands out of the belt area while the tiller is
operating.
2.

Standing

on the right side of the tiller, visually

belt (inside the belt cover). It should
3.

examine

the

not be turning.

If the belt turns with the machine in neutral, adjust it by
moving the hex nut below the cable bracket down a few
turns. Tighten

the upper

hex nut against the bracket.

See

Fig. 3-8.
4.

Now move the shift lever to the FORWARD (Wheels
Forward) position. Carefully engage the clutch by
squeezing the clutch handle against the handle. The
wheels

Figure 3=7
2_

of the cable. Slip the wire up through
bracket underneath
the handle.
3_

Remove one hex nut from the threaded

casing on the end

the slot on the cable

Push the end of the casing up through the cable bracket.
Rethread the hex nuton the end of the cable. Do not
tighten

at this time.

should

If the wheels

now spin.
do not rotate with the tiller in forward,

Re-check both adjustments,
and readjust as necessary.
Make certain that the hex nuts at the cable bracket are
tight. Do not overtighten

the clutch cable.

NOTE: If additional
adjustment
is required, it may be necessary
to remove the belt cover and move the hex nuts at the other end
of the clutch ca ble to increase the belt tension.

SECTION2--

ASSEMBLY&

adjust

by turning the hex nut found above the cable bracket up a
few turns. Tighten the bottom hex nut against the bracket.

SET-UP

Set-Up
Tires
The tires on your tiller may be over-inflated
purposes.

Reduce the tire pressure before

for shipping
operating.

The

recommended
operating tire pressure is approximately
14 p.s.i.
on 14 inch tires. Check the sidewall of tire for tire manufacturer's
recommended

pressure.

circumstances is 30 p.s.i. Equal tire pressure should
WARNING!
be maintained Maximum
on both tires.
tire pressure under any

Gas& OilFill-Up
Service the engine
separate

with gasoline

Engine Operator's

the instructions

and oil as instructed

Manual

in the

packed with your tiller. Read

carefully.

WARNING!

Use extreme

gasoline. Gasoline

care when handling

is extremely

flammable

and the

vapors are explosive. Never fuel the machine
indoors or while the engine is hot or running.

SECTION

2 --

ASSEMBLY& SET-UP

Controls
and Features

Clutch Handle

Handle

Adjustment

Crank

Depth Stake

J
Figure 44

EngineControls
See the separate
information

ChokeLever(if equipped)

Engine Operator's

and functions

Manual

The choke lever is used to enrich the fuel mixture

for additional

of the engine controls.

carburetor

GearSelection Handle
The gear selection

handle is located

on the front of the handle

The primer

The depth

The clutch handle is located beneath the handle. Squeezing the
clutch handle against the handle engages the wheel and tine
drive mechanisms.

engine speed and stops the engine.

starting

a cold engine.

stake controls

the tilling

depth.

Handle AdjustmentCrank
The handle may be adjusted

to the height

desired.

FuelShut-OffValve(if equipped)

ThrottleControl
lever is located

is used when

Depth Stake

Clutch Handle

control

in the

a cold engine.

Primer(If equipped)

assembly. It is used to select NEUTRAL, REVERSE, or one of the
FORWARD modes.

The throttle

when starting

on the engine.

It controls

the

Make sure the valve is in the ON (horizontal)

position

when

starting

the engine.

Any time the tiller is not in operation

storing,

performing

maintenance

valve is in the OFF (vertical)

or adjustment),

position.

(i.e.,

make sure the

Operation
When using the tiller for the first time, use the second

Starting the Engine
instructions
WARNING!
this manual

i_ll
NOTE:When

pushing

adjustment
5-1.

and
warnings
on theand
machine
Read,
understand,
follow and
all in
before operating.

the machine

hear a ratcheting-gear
This is normal.

with the engine

sound coming

Place the throttle
equipped,

See Fig.

off, you will

from the tiller's

chain case.

Use this position

_ort Position

pass...7_

Clevis Pin_

of the tiller while
the that
engine
running
or being
WARNING!
Be sure
no is
one
is standing
in front
started.
Place the gear selection

depth).

for the first

hole from the top (1" of tilling

lever in NEUTRAL.

control

lever in the FAST position

place the engine

speed control

or if

in the START

position.
3.

Move the choke lever to the CHOKE position or, if
equipped, push the primer two (2) or three (3) times. Wait
about two (2) seconds between
NOTE:A warm engine

each push.

may not require

Stand at side of tiller. Grasp the starter
out slowly,

until it pulls slightly

choking

or priming.

handle and pull

harder. Let the rope recoil

Figure S-1

slowly.
2.

Pull the starter

handle

rapidly. Do not allow the handle to

snap back. Allow it to recoil slowly while
hold on the starter handle.
3.

Repeat the previous

keeping

To adjust the depth

stake, remove the clevis pin and cotter

pin. Move the depth stake to the desired

a firm

with the clevis pin and cotter

steps until the engine starts.

When breaking
setting

As the engine warms up and begins to operate evenly,
move the choke lever gradually to the RUN position. If the
engine falters, return to the choke position,

then slowly

which

up sod and for shallow
gives 1" of tilling

depth

cultivation,

use the

(the second hole
position.

To adjust the side shields, remove the wing nuts. Move the
nuts. Tighten

NOTE: See the Engine Operator's Manual
tiller for more detailed instructions.

and secure

from the top). Place the side shields in their lowest

side shield to the desired

move to the RUN position.

setting

pin. See Fig. 5-1.

position

and replace the wing

securely. See Fig. 5-2.

packed with your

Stopping the Engine
To stop the engine,

move the throttle

control to the STOP or OFF

Shallow Tillinc

position.

hields

Settingthe Depth
Tilling depth is controlled
adjusted to five different
adjust the depth

by the depth stake which can be
settings. Adjust the side shields as you

stake.

and
ground itAlways
against disconnect
the engine, thebefore
WARNING!
spark performing
plug wire
any adjustments.

Deep tilling

position

Figure 5-2

For further

depth,

raise the depth

stake and side shields

and also make one or two more passes over the area.
6.

When tilling

loose soil, the depth

highest position
give the deepest
highest
7.

stake may be raised to its

by using the bottom adjustment
hole to
tilling depth. Raise the side shields to the

position.

To transport

the tiller, lower the depth

top adjustment

stake by using the

hole.

Operatingthe Tiller
1.

Select the depth stake setting.

Start the engine as instructed
Manual.

Move the gear selection
modes or reverse.
WARNING!

Do not move the gear selection

handle

Make certain

tiller is stopped

changing

necessary

handle to one of the forward

with the wheels or tines engaged.
gear selection.

in the Engine Operator's

completely

before

A partial engagement

when engaging

the

may be

the tines.

Squeeze the clutch handle against the handle to engage
the wheels and tines.
NOTE: Make certain the gear selection

indicator

positioned
before engaging the clutch
between gears, the engine will stall.

handle.

To transport

is correctly
If it is

the tiller, do not engage the tines. Select the

wheel drive only.

that the wheels are lifted off the ground while using
WARNING!
the
tine drive, Do
or the
not tiller
push could
down move
on the backward
handles so
and

cause personal
6.

be tilled twice
pulverize

injury.

For the best results, it is recommended

SECTION

S--

(lengthwise,

the soil.

OPERATION

that the garden

then widthwise)

to thoroughly

Maintenance& Adjustments
Lubrication
ground
it against
the engine
performing
ARNING!
Disconnect
the before
spark plug
wire and any
maintenance
or repairs.

Transmission
The transmission

Maintenance

requires

is pre-lubricated

no checking

and sealed at the factory.

unless the transmission

Refer to the separate Engine Operator's
maintenance
instructions.

Manual

half to it. This grease can be obtained

for engine

dealer by ordering

part number

at your nearest authorized

737-0300A.

Clutch Handle

Tires
Recommended

operating

tire pressure is approximately

Lubricate

the pivot

point on the clutch handle and the cable at

p.s.i, on 14 inch tires. (Check the sidewall of the tire for the
manufacturer's
recommended
pressure). Maximum tire pressure

least once a season with light oil. The control
in both directions.

under any circumstances
is 30 p.s.i. Equal tire pressure should
maintained
on both tires.

PivotPoints

Lubricate
WARNING!
seating

Excessive pressure (over 30 p.s.i.) when

beads may cause tire/rim

with force sufficient

assembly

all the pivot points

must operate

freely

and linkages

at least once a season

and lubricate

the tine shafts at least

with light oil.

to burst

to cause serious injury.

TineShafts
Remove the tine assemblies

Air (:leaner

once a season.

Service the air cleaner every 10 hours under
Clean it every hour under extremely

normal

dusty conditions.

conditions.
Poor

engine performance
or flooding usually indicates that the air
cleaner should be serviced. Refer to the Engine Operator's
Manual for maintenance
instructions.

Wheel Shafts
Remove the wheel assemblies

and lubricate

the axle shafts at

least once a season.

Adjustments

SparkPlug
The spark plug should be cleaned and the gap reset every
25 hours of engine operation. Spark plug replacement
is

adjustments
while
engineto ismake
running,
WARNING!
Never the
attempt
any except
where specified in the Operator's Manual.

at the start of each tiller season; check the

Engine Operator's
specification.

fill with grease, lay the right half of the transmission
on its side,
add 22 ounces of Benalene 920 grease, and assemble the left

Engine

recommended

is disassembled.

Manual

for the correct

plug type and gap

HandleAdjustment
The handle may be adjusted to the desired
Controls & Features Section for details.

height.

Refer to the

Belt TensionAdjustment
Periodic adjustment
of the belt tension may be required d ue to
normal stretch and wear on the belt. Adjustment
is needed if the
tines or wheels
maintains

seem to hesitate

while turning,

the same speed. To adjust the tension

refer to the Assembly

but the engine
on the belt,

& Set-Up Section for instructions.

Engine Adjustment
Refer to the separate
adjustment

Engine Operator's

Manual

for engine

instructions.

Off-SeasonStorage
If the tiller will not be used for a period longer than 30 days, the
following
steps should be taken to prepare the tiller for storage.
Clean the exterior
thoroughly.
lubrication

of the engine

and the entire tiller

Lubricate the tiller as described
instructions.

in the

The use of a pressure washer to clean your tiller is not
recommended.
The washer may cause damage to electric
components,
spindles, pulleys, bearings or the engine. The
use of pressure washers will result in shortened

life and

reduce serviceability.
Refer to the Engine Operator's
engine storage instructions.

Manual

for the correct

Wipe the tines with an oiled rag to prevent

rust.

Store the tiller in a clean, dry area. Do not store next to
corrosive materials, such as fertilizer.
NOTE:When
unventilated
rustproof
equipment

storing any type of power equipment
in an
or metal storage shed, care should be taken to

the equipment.
and especially

SECTION 6--

Using a light oil or silicone, coat the
any springs,

MAINTENANCE

bearings,

& ADJUSTMENTS

and cables.

Service
Belt Replacement
Your tiller has been engineered with a belt designed for long
life and optimal performance. It should never be replaced with
a non-OEM belt. Order all belts through an authorized service
dealer or by contacting Customer Support as instructed on page
2.
Refer to Fig. 7-1 for the following steps.

Engine
PuJ

Bolt

Figure 7-1
1.

Disconnect

and ground

the spark plug wire against

the

engine.
2.

Remove the belt cover from the left side of the tiller by
removing the two torx head screws from the top of the belt
cove r.

Remove the two hex cap nuts and flat washers from the
front side of the belt cover. Remove the hex nut and flat
washer at the back of the cover.

Remove the belt keeper assembly located behind the
engine pulley by removing two hex bolts and lock washers.

Remove the belt and reassemble the new belt. Follow the
instructions in reverse order.

NOTE: Upon reassembly, make certain the belt is routed over the
idler pulley and inside of belt keepers by engine pulley. See Fig.
7-1.

Troubleshooting
Problem
Engine fails to start

Engine runs erratic

Cause
1, Fuel tankempty,

Remedy

or stale fuel.

1. Fill tank with clean, fresh gasoline.

2. Throttle control lever not in correct starting
position (if equipped).

2. Move throttle

3. Blocked fuel line.

3. Clean fuel line,

4. Dirty air cleaner.

4. Refer to the Engine Operator's

5. Choke not in ON posit=on,

5. Move switch to ON position.

6. Spark plug wire disconnected.

6, Connect wire to spark plug,

7. Faulty spark plug,

7. Clean, adjust gap or replace.

8. Engine flooded.

8. Refer to the Engine Operator's

1. Tiller running

1. Move choke lever to OFF position.

on CHOKE.

lever to start position.

Manual

2. Spark plug wire loose.

2. Connect and tighten

spark plug wire.

3. Blocked fuel line or stale fuel.

3. Clean fuel line; fill tank with clean, fresh
gasoline.

4. Ventin

Engine overheats

5. Water or dirt in fuel system.

5. Drain fuel tank. Refill with fresh fuel.

6. Dirty air cleaner.

6. Refer to the Engine Operator's

Manual

7. Carburetor

7. Refer to the Engine Operator's

Manual

out of adjustment.

1. Engine oil level low.

1. Fill crankcase with proper oil.

2. Dirty air cleaner.

2. Refer to the Engine Operator's

Manual

3. Air flow restricted.

3. Refer to the Engine Operator's

Manual

4. Carburetor

Tines do not engage

not adjusted

1. Foreign object

properly.

lodged in tines.

4. Adjust carburetor as instructed
Operator's Manual
1. Dislodge foreign

2. Replace tine clevis pin(s).

3. Pulley and idler not in correct adjustment.

3. Take tiller to authorized

4. Not shifting

4. Refer to the Operation
shifting procedures.

properly.

cable notadjusted

properly.

5. Adjust control

6. Belt worn and/or stretched.

6. Replace belt.

1. Improper

rotation.

Forward

in the Engine

object.

2. Tine clevis pin(s) missing.

5. Control

Tines skip over ground

4. Clear vent.

gas cap plugged.

service dealer.
Section for proper

cable

rotation

should

only be used on soil

that has already been tilled, not on virgin
Wheels do not engage

1. Replace clevis pin.

1. Clevis pin missing.
2. Tiller is not being shifted

properly.

2. Refer to Operation
shifting

3. Control

cable notadjusted

4. Belt worn and/or stretched.

properly.

Section for proper

procedures.

3. Adjust control
4. Replace belt.

cable

soil.

ReplacementParts
Component

Phone (800) 800-7310
serial number

or (330) 220-4683

ready). Parts Manual

[

to order replacement

downloads

are also available

Part Number

and Description

754-0434

V-Belt, I/2x 51.17

742-0547
742-0545
742-0456
742-0545

Outer
Inner
Outer
Inner

746-0916

Clutch Cable

Tine
Tine
Tine
Tine

(LH)
(LH)
(RH)
(RH)

634-04233

Tires, 14 X 4-1/2X 6

714-0419B
711-0415
714-0147
711-0415

Cotter
Clevis
Cotter
Clevis

BS-491588

Air Filter

759-3336

Champion

parts or a complete

Pin, Tine Assembly
Pin, Tine Assembly
Pin, Depth Stake
Pin, Depth Stake

Parts Manual

RC12YC

(have your full model number

and

free of charge at www.mtdproducts.com.

SECTION11 =

NOTES

MANUFACTURER'S

LiMiTED WARRANTY

The limited warranty set forth below is given by MTD LLC with
respect to new merchandise purchased and used in the United States
and/or its territories and possessions, and by MTD Products Limited
with respect to new merchandise purchased and used in Canadaand/
or its territories and possessions (either entity respectively, "MTD").
"MTD" warrants this product (excluding its Normal Wear Parts and
Attachments as described below) against defects in material and
workmanship for a period of two (2) years commencing on the date
of original purchase and will, at its option, repair or replace, free of
charge, any part found to be defective in materials or workmanship.
This limited warranty shall only apply if this product has been
operated and maintained in accordance with the Operator's Manual
furnished with the product, and has not been subject to misuse,
abuse, commercial use, neglect, accident, improper maintenance,
alteration, vandalism, theft, fire, water, or damage because of other
peril or natural disaster. Damage resulting from the installation or use
of any part, accessory or attachment not approved by MTD for use
with the product(s) covered by this manual will void your warranty as
to any resulting damage.
Normal Wear Parts are warranted to be free from defects in material
and workmanship for a period of thirty (30) days from the date of
purchase. Normal wear parts include, but are not limited to items
such as: batteries, belts, blades, blade adapters, tines, grass bags,
wheels, rider deck wheels, seats, snow thrower skid shoes, friction
wheels, shave plates, auger spiral rubber and tires.
Attachments-- MTD warrants attachments for this product against
defects in material and workmanship for a period of one (1) year,
commencing on the date of the attachment's original purchase or
lease. Attachments include, but are not limited to items such as:
grass collectors and mulch kits.
HOWTO OBTAINSERVICE:Warranty service is available, WITH
PROOFOF PURCHASE,through your local authorized service dealer.
To locate the dealer in your area:
In the U.S.A.
Check your Yellow Pages, or contact MTD LLC at RO. Box 361131,
Cleveland, Ohio 44136-0019, or call 1-800-800-7310, 1-330-2204683 or log on to our Web site at www.mtdproducts.com.
In Canada
Contact MTD Products Limited, Kitchener, ON N2G4J1, or call 1-800668-1238 or log on to our Web site at www.mtdcanada.com.
This limited warranty does not provide coverage in the following
cases:
a. The engine or component parts thereof. These items may carry a
separate manufacturer's warranty. Refer to applicable manufacturer's warranty for terms and conditions.
b. Log splitter pumps, valves, and cylinders havea separate oneyear warranty.

FOR

c. Routine maintenance items such as lubricants, filters, blade
sharpening, tune-ups, brake adjustments, clutch adjustments,
deck adjustments, and normal deterioration of the exterior finish
due to use or exposure.
d. Service completed by someone other than an authorized service
dealer.
e. MTD does not extend any warranty for products sold or exported
outside of the United States and/or Canada,and their respective
possessions and territories, except those sold through MTD's
authorized channels of export distribution.
f. Replacement parts that are not genuine MTD parts.
g. Transportation charges and service calls.
h. MTD does not warrant this product for commercial use.
No implied warranty, including any implied warranty of
merchantability of fitness for a particular purpose, applies after
the applicable period of express written warranty above as to the
parts as identified. No other express warranty, whether written or
oral, except as mentioned above, given by any person or entity,
including a dealer or retailer, with respect to any product, shall
bind MTD. Duringthe period of the warranty, the exclusive remedy
is repair or replacement of the product as set forth above.
The provisions as set forth in this warranty provide the sole and
exclusive remedy arising from the sale. MTD shall not be liable
for incidental or consequential loss or damage including, without
limitation, expenses incurred for substitute or replacement lawn
care services or for rental expenses to temporarily replace a
warranted product.
Some states do not allow the exclusion or limitation of incidental
or consequential damages, or limitations on how long an implied
warranty lasts, so the above exclusions or limitations may not apply
to you.
In no event shaft recovery of any kind be greater than the amount of
the purchase price of the product sold. Alteration of safety features of
the product shall void this warranty. You assume the risk and liability
for loss, damage, or injuryto you and your property and/or to others
and their property arising out of the misuse or inability to use the
product.
This limited warranty shall not extend to anyone other than the
original purchaser or to the person for whom it was purchased as a
gift.
HOWSTATELAW RELATESTO THIS WARRANTY: This limited
warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
IMPORTANT: Owner must present Original Proof of Purchase to
obtain warranty coverage.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHiO 44136=0019; Phone: 1=800=800=7310, 1=330=220=4683
MTD Canada Limited = KITCHENER, ON N2G 4J1; Phone 1=800=668=1238
GDOC-lO0015 REV.B

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MTD 21AA412A000 User Manual REAR TINE TILLER Manuals And Guides 1109378L

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