Operator`s manual | Blomberg WMF 8428 A Washer User Manual

Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty
Operator’s Manual
Rear Tine Tiller — Model Series 410
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Form No. 769-03700
(November 29, 2007)
To The Owner
Thank You
Thank you for purchasing a Garden Tiller manufactured by
MTD LLC. It was carefully engineered to provide excellent
performance when properly operated and maintained.
Please read this entire manual prior to operating the equipment.
It instructs you how to safely and easily set up, operate and
maintain your machine. Please be sure that you, and any other
persons who will operate the machine, carefully follow the
recommended safety practices at all times. Failure to do so could
result in personal injury or property damage.
All information in this manual is relative to the most recent
product information available at the time of printing. Review
this manual frequently to familiarize yourself with the machine,
its features and operation. Please be aware that this Operator’s
Manual may cover a range of product specifications for various
models. Characteristics and features discussed and/or illustrated
in this manual may not be applicable to all models. MTD LLC
reserves the right to change product specifications, designs and
equipment without notice and without incurring obligation.
This product has met the rigid safety standards of the Outdoor
Power Equipment Institute and an independent testing
laboratory. If you have any problems or questions concerning
the machine, phone your local authorized MTD service dealer
or contact us directly. MTD’s Customer Support telephone
numbers, website address and mailing address can be found on
this page. We want to ensure your complete satisfaction at all
Throughout this manual, all references to right and left side of the
machine are observed from the operating position
The engine manufacturer is responsible for all engine-related
issues with regards to performance, power-rating, specifications,
warranty and service. Please refer to the engine manufacturer’s
Owner’s/Operator’s Manual, packed separately with your
machine, for more information.
Table of Contents
Safe Operation Practices......................................... 3
Assembly & Set-Up................................................... 6
Controls & Features.................................................10
Maintenance & Adjustment..................................13
Replacement Parts..................................................17
Record Product Information
Model Number
Before setting up and operating your new equipment, please
locate the model plate on the equipment and record the
information in the provided area to the right. You can locate 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 you seek technical support via our web
site, Customer Support Department, or with a local authorized
service dealer.
Serial Number
Customer Support
Please do NOT return the machine to the retailer or dealer without first contacting our Customer Support Department.
If you have difficulty assembling this product or have any questions regarding the controls, operation, or maintenance of
this machine, you can seek help from the experts. Choose from the options below:
Visit us on the web at www.mtdproducts.com
Call a Customer Support Representative at (800) 800-7310 or (330) 220-4683
Write us at MTD LLC • P.O. Box 361131 • Cleveland, OH • 44136-0019
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 this machine. Failure to comply
with these instructions may result in personal injury.
When you see this symbol. HEED ITS WARNING!
California Proposition 65
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 harm.
WARNING! Battery posts, terminals, and related accessories contain lead and lead
compounds, chemicals known to the State of California to cause cancer and reproductive
harm. Wash hands after handling
DANGER! This machine was built to be operated according to the safe operation practices 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 machine is capable of amputating fingers, hands,
toes and feet. Failure to observe the following safety instructions could result in serious
injury or death.
Read, understand, and follow all instructions on the
machine and in the manual(s) before attempting to
assemble and operate. Keep this manual in a safe place for
future and regular reference 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 practices in this manual
and on the machine and be trained and supervised by an
Never allow adults to operate this machine without proper
Keep the area of operation clear of all persons, particularly
small children and pets. Stop machine if anyone enters the
Thoroughly inspect the area where the equipment is to
be used. Remove all stones, sticks, wire, and other foreign
objects which could be tripped over and cause personal
Wear sturdy, rough-soled work shoes and close fitting
slacks and shirt. Loose fitting clothes or jewelry can be
caught in moving parts. Never operate this machine in bare
feet or sandals.
Disengage clutch levers and shift (if provided) into neutral
(“N”) before starting the engine.
Never leave this machine unattended with the engine
Never attempt to make any adjustments while engine is
running, except where specifically recommended in the
operator’s manual.
Safe Handling of Gasoline:
To avoid personal injury or property damage use extreme care
in handling gasoline. Gasoline is extremely flammable 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 gasoline container.
Never fill containers inside a vehicle or on a truck
or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle
before filling.
When practical, remove gas-powered equipment
from the truck or trailer and refuel it on the ground.
If this is not possible, then refuel such equipment on
a trailer with a portable container, rather than from a
gasoline dispenser nozzle.
After striking a foreign object, stop the engine, disconnect
the spark plug wire and ground against the engine.
Thoroughly inspect the machine for any damage. Repair
the damage before starting and operating.
Keep the nozzle in contact with the rim of the fuel
tank or container opening at all times until fueling is
complete. Do not use a nozzle lock-open device.
Disengage all clutch levers (if fitted) and stop engine
before you leave the operating position (behind the
handles). Wait until the tines come to a complete stop
before unclogging the tines, making any adjustments, or
Extinguish all cigarettes, cigars, pipes and other
sources of ignition.
Never run an engine indoors or in a poorly ventilated area.
Engine exhaust contains carbon monoxide, an odorless
and deadly gas.
Never fuel machine indoors.
Never remove gas cap or add fuel while the engine
is hot or running. Allow engine to cool at least two
minutes before refueling.
Muffler and engine become hot and can cause a burn. Do
not touch.
Never over fill fuel tank. Fill tank to no more than ½
inch below bottom of filler neck to allow space for
fuel expansion.
Use caution when tilling near fences, buildings and
underground utilities. Rotating tines can cause property
damage or personal injury.
Replace gasoline cap and tighten securely.
If gasoline is spilled, wipe it off the engine and
equipment. Move unit to another area. Wait 5
minutes before starting the engine.
Do not overload machine capacity by attempting to till soil
too deep at too fast of a rate.
To reduce fire hazards, keep machine free of grass,
leaves, or other debris build-up. Clean up oil or fuel
spillage and remove any fuel soaked debris.
If the machine should start making an unusual noise or
vibration, stop the engine, disconnect the spark plug wire
and ground it against the engine. Inspect thoroughly for
damage. Repair any damage before starting and operating.
Keep all shields, guards, and safety devices in place and
operating properly.
Never pick up or carry machine while the engine is running.
Use only attachments and accessories approved by the
manufacturer. Failure to do so can result in personal injury.
If situations occur which are not covered in this manual, use
care and good judgement. Contact Customer Support for
assistance and the name of you nearest servicing dealer..
Never store the machine or fuel container inside
where there is an open flame, spark or pilot light
as on a water heater, space heater, furnace, clothes
dryer or other gas appliances.
Do not put hands or feet near rotating parts. Contact with
the rotating parts can amputate hands and feet.
Do not operate machine while under the influence of
alcohol or drugs.
Never operate this machine without good visibility or light.
Always be sure of your footing and keep a firm hold on the
Maintenance & Storage
Keep machine, attachments and accessories in safe
working order.
Keep bystanders away from the machine while it is in
operation. Stop the machine if anyone enters the area.
Allow a machine to cool at least five minutes before
storing. Never tamper with safety devices. Check their
proper operation regularly.
Be careful when tilling in hard ground. The tines may catch
in the ground and propel the tiller forward. If this occurs,
let go of the handle bars and do not restrain the machine.
Check bolts and screws for proper tightness at frequent
intervals to keep the machine in safe working condition.
Also, visually inspect machine for any damage.
Exercise extreme caution when operating on or crossing
gravel surfaces. Stay alert for hidden hazards or traffic. Do
not carry passengers.
Before cleaning, repairing, or inspecting, stop the engine
and make certain the tines and all moving parts have
stopped. Disconnect the spark plug wire and ground it
against the engine to prevent unintended starting.
Never operate the machine at high transport speeds on
hard or slippery surfaces.
Exercise caution to avoid slipping or falling.
Do not change the engine governor settings or over-speed
the engine. The governor controls the maximum safe
operating speed of engine.
Look down and behind and use care when in reverse or
pulling machine towards you.
Maintain or replace safety and instruction labels, as
Start the engine according to the instructions found in this
manual and keep feet well away from the tines at all times.
Follow this manual for safe loading, unloading,
transporting, and storage of this machine.
Always refer to the operator’s manual for important details
if the machine is to be stored for an extended period.
Section 2 — Important Safe Operation Practices
If the fuel tank has to be drained, do this outdoors.
Observe proper disposal laws and regulations for gas, oil,
etc. to protect the environment.
Notice Regarding Emissions
Engines which are certified to comply with California and federal
EPA emission regulations for SORE (Small Off Road Equipment)
are certified to operate on regular unleaded gasoline, and
may include the following emission control systems: Engine
Modification (EM), Oxidizing Catalyst (OC), Secondary Air
Injection (SAI) and Three Way Catalyst (TWC) if so equipped.
Average Useful Life
According 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
hours of operation. 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.
Spark Arrestor
Warning! This machine is equipped with an
internal combustion engine and should not be used
on or near any unimproved forest-covered,
brushcovered or grass-covered land unless the
engine’s exhaust system is equipped with a spark
arrester meeting applicable local or state laws (if
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 361131 Cleveland, Ohio 44136-0019.
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.
Section 2 — Important Safe Operation Practices
Assembly & Set-Up
Contents of Carton
One Tiller
One Handlebar Assembly
One Shift Rod
One Depth Stake
One Operator’s Manual
One Engine Operator’s Manual
Depth Stake
WARNING! Before assembly, disconnect the spark
Unpacking Instructions
NOTE: References to the right or left side of the tiller are
determined from behind the machine in the operating position.
Remove the staples, break the glue on the top flaps, or cut
the tape at the end of the carton and peel it along the top
flap to open.
Remove any loose parts included with the tiller (i.e., the
Operator’s Manual, etc.).
Cut the corners and lay the carton down flat.
Remove the packing material.
Roll or slide the tiller out of the carton. Check the carton
thoroughly for loose parts.
Extend the control cable and lay it on the floor. Be careful
not to bend or kink the control cable.
plug wire and ground it against the engine to
prevent unintended starting.
Tip the tiller forward so that it rests on the front
Unthread the “T” knob from the top of the depth stake and
remove the flat washer and hex bolt. Remove the cotter pin
from the clevis pin. See Fig. 3-1.
Flat Washer
Clevis Pin
Hex Bolt
Cotter Pin
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
Depth Stake
Figure 3-1
Raise the tine shield hinge flap assembly and insert the
depth stake assembly into the slot, under the tine shield
and up through the tine shield assembly.
Insert the clevis pin through the tine shield and depth
stake assemblies. Secure it with the cotter pin.
Insert the hex bolt into the top hole of the depth stake
assembly. Place the flat washer on the hex bolt and thread
the T-knob onto the hex bolt. Tighten securely. See Fig. 3-1.
Tip the tiller back down so that it rests on the tines.
Handlebar Assembly
Remove the handle adjustment crank, flange nut, retainer
bracket, shoulder bolt, and lock nut from the pivot bracket.
Place the handle assembly into position in the handle pivot
bracket by lining up the upper holes in the handle with the
slots in the pivot bracket. See Fig. 3-2.
Retainer Bracket,
Shoulder Bolt
& Lock Nut
Place the hex opening of the flange nut retainer bracket
over the flange nut securing the handle adjustment crank
and install the lock nut on the lower shoulder bolt. See Fig.
Handle Adjustment
Flange Nut
Retainer Bracket
Handle Adjustment Crank
& Flange Nut
Figure 3-4
Pivot Bracket
Figure 3-2
Lift up the handle assembly 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 and the retainer bracket 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.
Gear Shift Rod
Remove the T-handle, cotter pin, flat washer and rubber
washer from the end of the gear shift rod.
Slide the rod up through the right side of bracket on the
front of the handle assembly. See Fig. 3-5.
Retainer Bracket,
Shoulder Bolts
& Lock Nut
Gear Shift Rod
Figure 3-3
Figure 3-5
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 the nut
against the cable bracket. See Fig. 3-8.
Gear Shift Rod
Hex Nut
Shift Cover
Rubber Washer,
Flat Washer
& Cotter Pin
Hex Nut
Slot in Cable
Figure 3-8
Figure 3-6
Install the nut and T-handle on the gear shift rod.
Clutch Cable
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.
NOTE: Do not overtighten the clutch cable. Too much tension
may cause it to break.
Clutch Cable
NOTE: Service the engine with oil and gasoline before checking
this adjustment. Refer to the separate Engine Operator’s Manual
packed with your tiller for instructions.
Clutch Cable
NOTE: Keep hands out of the belt area while the tiller is
Cable Clip
Figure 3-7
Remove one hex nut from the threaded casing on the end
of the cable. Slip the wire up through the slot on the cable
bracket underneath the handle.
Push the end of the casing up through the cable bracket.
Rethread the hex nut on the end of the cable. Do not
tighten at this time.
Section 2— Assembly & Set-Up
Position the tiller so that the front counterweight is against
a solid object, such as a wall. With the gear selection lever
in NEUTRAL, start the engine. Refer to the Operation
Section for starting instructions.
Standing on the right side of the tiller, visually examine the
belt (inside the belt cover). It should 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.
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 should now spin.
If the wheels do not rotate with the tiller in forward, adjust
by turning the hex nut found above the cable bracket up a
few turns. Tighten the bottom hex nut against the bracket.
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 cable to increase the belt tension.
The tires on your tiller may be over-inflated for shipping
purposes. Reduce the tire pressure before 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.
WARNING! Maximum tire pressure under any
circumstances is 30 p.s.i. Equal tire pressure should
be maintained on both tires.
Gas & Oil Fill-Up
Service the engine with gasoline and oil as instructed in the
separate Engine Operator’s Manual packed with your tiller. Read
the instructions carefully.
WARNING! Use extreme care when handling
gasoline. Gasoline 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
Gear Selection
Clutch Handle
Handle Adjustment
Depth Stake
Engine Controls
Figure 4-1
See the separate Engine Operator’s Manual for additional
information and functions of the engine controls.
The choke lever is used to enrich the fuel mixture in the
carburetor when starting a cold engine.
Gear Selection Handle
Primer (If equipped)
The gear selection handle is located on the front of the handle
assembly. It is used to select NEUTRAL, REVERSE, or one of the
FORWARD modes.
The primer is used when starting a cold engine.
Clutch Handle
The depth stake controls the tilling depth.
The clutch handle is located beneath the handle. Squeezing the
clutch handle against the handle engages the wheel and tine
drive mechanisms.
Throttle Control
The throttle control lever is located on the engine. It controls the
engine speed and stops the engine.
Choke Lever (If equipped)
Depth Stake
Handle Adjustment Crank
The handle may be adjusted to the height desired.
Fuel Shut-Off Valve (If equipped)
Make sure the valve is in the ON (horizontal) position when
starting the engine. Any time the tiller is not in operation (i.e.,
storing, performing maintenance or adjustment), make sure the
valve is in the OFF (vertical) position.
Starting the Engine
WARNING! Read, understand, and follow all
When using the tiller for the first time, use the second
adjustment hole from the top (1” of tilling depth). See Fig.
instructions and warnings on the machine and in
this manual before operating.
NOTE: When pushing the machine with the engine off, you will
hear a ratcheting-gear sound coming from the tiller’s chain case.
This is normal.
Use this position
for the first pass
Transport Position
WARNING! Be sure that no one is standing in front
of the tiller while the engine is running or being
Place the gear selection lever in NEUTRAL.
Place the throttle control lever in the FAST position or if
equipped, place the engine speed control in the START
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 each push.
Clevis Pin
Cotter Pin
NOTE: A warm engine may not require choking or priming.
Stand at side of tiller. Grasp the starter handle and pull
out slowly, until it pulls slightly harder. Let the rope recoil
Figure 5-1
Pull the starter handle rapidly. Do not allow the handle to
snap back. Allow it to recoil slowly while keeping a firm
hold on the starter handle.
To adjust the depth stake, remove the clevis pin and cotter
pin. Move the depth stake to the desired setting and secure
with the clevis pin and cotter pin. See Fig. 5-1.
Repeat the previous steps until the engine starts.
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
move to the RUN position.
When breaking up sod and for shallow cultivation, use the
setting which gives 1” of tilling depth (the second hole
from the top). Place the side shields in their lowest position.
To adjust the side shields, remove the wing nuts. Move the
side shield to the desired position and replace the wing
nuts. Tighten securely. See Fig. 5-2.
NOTE: See the Engine Operator’s Manual packed with your
tiller for more detailed instructions.
Stopping the Engine
To stop the engine, move the throttle control to the STOP or OFF
Shallow Tilling
Side Shields
Setting the Depth
Tilling depth is controlled by the depth stake which can be
adjusted to five different settings. Adjust the side shields as you
adjust the depth stake.
WARNING! Always disconnect the spark plug wire
Wing Nuts
and ground it against the engine, before performing
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.
When tilling loose soil, the depth stake may be raised to its
highest position by using the bottom adjustment hole to
give the deepest tilling depth. Raise the side shields to the
highest position.
To transport the tiller, lower the depth stake by using the
top adjustment hole.
Operating the Tiller
Select the depth stake setting.
Start the engine as instructed in the Engine Operator’s
Move the gear selection handle to one of the forward
modes or reverse.
WARNING! Do not move the gear selection handle
with the wheels or tines engaged. Make certain the
tiller is stopped completely before changing the
gear selection. A partial engagement may be
necessary when engaging the tines.
Squeeze the clutch handle against the handle to engage
the wheels and tines.
NOTE: Make certain the gear selection indicator is correctly
positioned before engaging the clutch handle. If it is
between gears, the engine will stall.
To transport the tiller, do not engage the tines. Select the
wheel drive only.
WARNING! Do not push down on the handles so
that the wheels are lifted off the ground while using
the tine drive, or the tiller could move backward and
cause personal injury.
For the best results, it is recommended that the garden
be tilled twice (lengthwise, then widthwise) to thoroughly
pulverize the soil.
Section 5— Operation
Maintenance & Adjustments
WARNING! Disconnect the spark plug wire and
ground it against the engine before performing any
maintenance or repairs.
Refer to the separate Engine Operator’s Manual for engine
maintenance instructions.
The transmission is pre-lubricated and sealed at the factory. It
requires no checking unless the transmission is disassembled. To
fill with grease, lay the right half of the transmission on its side,
add 22 ounces of Benalene 920 grease, and assemble the left
half to it. This grease can be obtained at your nearest authorized
dealer by ordering part number 737-0300A.
Clutch Handle
Recommended operating tire pressure is approximately 14
p.s.i. on 14 inch tires. (Check the sidewall of the tire for the
manufacturer’s recommended pressure). Maximum tire pressure
under any circumstances is 30 p.s.i. Equal tire pressure should be
maintained on both tires.
Lubricate the pivot point on the clutch handle and the cable at
least once a season with light oil. The control must operate freely
in both directions.
WARNING! Excessive pressure (over 30 p.s.i.) when
seating beads may cause tire/rim assembly to burst
with force sufficient to cause serious injury.
Air Cleaner
Service the air cleaner every 10 hours under normal conditions.
Clean it every hour under extremely dusty 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.
Spark Plug
The spark plug should be cleaned and the gap reset every
25 hours of engine operation. Spark plug replacement is
recommended at the start of each tiller season; check the
Engine Operator’s Manual for the correct plug type and gap
Pivot Points
Lubricate all the pivot points and linkages at least once a season
with light oil.
Tine Shafts
Remove the tine assemblies and lubricate the tine shafts at least
once a season.
Wheel Shafts
Remove the wheel assemblies and lubricate the axle shafts at
least once a season.
WARNING! Never attempt to make any
adjustments while the engine is running, except
where specified in the Operator’s Manual.
Handle Adjustment
The handle may be adjusted to the desired height. Refer to the
Controls & Features Section for details.
Belt Tension Adjustment
Periodic adjustment of the belt tension may be required due to
normal stretch and wear on the belt. Adjustment is needed if the
tines or wheels seem to hesitate while turning, but the engine
maintains the same speed. To adjust the tension on the belt,
refer to the Assembly & Set-Up Section for instructions.
Engine Adjustment
Refer to the separate Engine Operator’s Manual for engine
adjustment instructions.
Off-Season Storage
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 of the engine and the entire tiller
thoroughly. Lubricate the tiller as described in the
lubrication instructions.
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 Manual for the correct
engine storage instructions.
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 storing any type of power equipment in an
unventilated or metal storage shed, care should be taken to
rustproof the equipment. Using a light oil or silicone, coat the
equipment and especially any springs, bearings, and cables.
Section 6— Maintenance & Adjustments
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
Refer to Fig. 7-1 for the following steps.
Idler Pulley
Figure 7-1
Disconnect and ground the spark plug wire against the
Remove the belt cover from the left side of the tiller by
removing the two torx head screws from the top of the belt
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.
Engine fails to start
Engine runs erratic
Engine overheats
Tines do not engage
1. Fuel tank empty, or stale fuel.
1. Fill tank with clean, fresh gasoline.
2. Throttle control lever not in correct starting
position (if equipped).
2. Move throttle lever to start position.
3. Blocked fuel line.
3. Clean fuel line.
4. Dirty air cleaner.
4. Refer to the Engine Operator’s Manual
5. Choke not in ON position.
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 Manual
1. Tiller running on CHOKE.
1. Move choke lever to OFF position.
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
4. Vent in gas cap plugged.
4. Clear vent.
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 out of adjustment.
7. Refer to the Engine Operator’s Manual
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 not adjusted properly.
4. Adjust carburetor as instructed in the Engine
Operator’s Manual
1. Foreign object lodged in tines.
1. Dislodge foreign object.
2. Tine clevis pin(s) missing.
2. Replace tine clevis pin(s).
3. Pulley and idler not in correct adjustment.
3. Take tiller to authorized service dealer.
4. Not shifting properly.
4. Refer to the Operation Section for proper
shifting procedures.
5. Control cable not adjusted properly.
5. Adjust control cable
6. Belt worn and/or stretched.
6. Replace belt.
Tines skip over ground
1. Improper rotation.
1. Forward rotation should only be used on soil
that has already been tilled, not on virgin soil.
Wheels do not engage
1. Clevis pin missing.
1. Replace clevis pin.
2. Tiller is not being shifted properly.
2. Refer to Operation Section for proper
shifting procedures.
3. Control cable not adjusted properly.
3. Adjust control cable
4. Belt worn and/or stretched.
4. Replace belt.
Replacement Parts
Part Number and Description
V-Belt, 1⁄2 x 51.17
Outer Tine (LH)
Inner Tine (LH)
Outer Tine (RH)
Inner Tine (RH)
Clutch Cable
Tires, 14 X 4-1⁄2 X 6
Cotter Pin, Tine Assembly
Clevis Pin, Tine Assembly
Cotter Pin, Depth Stake
Clevis Pin, Depth Stake
Air Filter
Champion RC12YC
Phone (800) 800-7310 or (330) 220-4683 to order replacement parts or a complete Parts Manual (have your full model number and
serial number ready). Parts Manual downloads are also available free of charge at www.mtdproducts.com.
Section 11 — Notes
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 Canada and/
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.
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:
In the U.S.A.
Check your Yellow Pages, or contact MTD LLC at P.O. 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 N2G 4J1, 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
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 have a separate oneyear warranty.
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
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. During the 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 shall 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 injury to you and your property and/or to others
and their property arising out of the misuse or inability to use the
This limited warranty shall not extend to anyone other than the
original purchaser or to the person for whom it was purchased as a
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-100015 REV. B
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