MTD Tiller 428C User Manual

Operator’s Manual  
Rear Tine Tiller  
Model Series 410  
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY  
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 361131 Cleveland, Ohio 44136-0019.  
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019  
PRINTED IN U.S.A.  
769-02358
2/3/06  
FORM NO.  
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SECTION 1: 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.  
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.  
DANGER This machine 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 machine is capable of amputating hands and feet and throwing objects.  
Failure to observe the following safety instructions could result in serious injury or death.  
spilled on yourself or your clothes which can ignite.  
Wash your skin and change clothes immediately.  
Use only an approved gasoline container.  
Extinguish all cigarettes, cigars, pipes and other  
sources of ignition.  
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.  
Never over fill fuel tank. Fill tank to no more than ½  
inch below bottom of filler neck to provide space for  
fuel expansion.  
Replace gasoline cap and tighten securely.  
If gasoline is spilled, wipe it off the engine and  
equipment. Move machine to another area. Wait 5  
minutes before starting the engine.  
Never store the machine or fuel container inside  
near an open flame, spark or pilot light (e.g.  
furnace, water or space heater, clothes dryer etc.).  
Allow machine to cool 5 minutes before storing.  
Training  
1.  
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 parts.  
7.  
8.  
9.  
10.  
2.  
3.  
Be familiar with all controls and their proper  
operation. Know how to stop the machine and  
disengage them quickly.  
Never allow children under 14 years old to operate  
this machine. Children 14 years old and over should  
read and understand the operation instructions and  
safety rules in this manual and should be trained  
and supervised by a parent.  
11.  
12.  
13.  
14.  
4.  
5.  
Never allow adults to operate this machine without  
proper instruction.  
Keep bystanders, helpers, pets and children at least  
75 feet from the machine while it is in operation.  
Stop machine if anyone enters the area.  
15.  
16.  
Preparation  
1.  
Thoroughly inspect the area where the equipment is  
Operation  
to be used. Remove all stones, sticks, wire, and  
other foreign objects which could be tripped over  
and cause personal injury.  
1.  
2.  
3.  
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 handles.  
Keep bystanders, helpers, pets, and children at  
least 75 feet from the machine while it is in  
operation. Stop the machine if anyone enters the  
area.  
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.  
2.  
Wear sturdy, rough-soled work shoes and close  
fitting slacks and shirt. Loose fitting clothes or  
jewelry can be caught in movable parts. Never  
operate this machine in bare feet or sandals.  
Disengage clutch levers and shift (if provided) into  
neutral (“N”) before starting the engine.  
3.  
4.  
5.  
4.  
5.  
6.  
Never leave this machine unattended with the  
engine running.  
Never attempt to make any adjustments while  
engine is running, except where specifically  
recommended in the operator’s manual.  
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  
6.  
Exercise extreme caution when operating on or  
crossing gravel surfaces. Stay alert for hidden  
hazards or traffic. Do not carry passengers.  
3
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7.  
Never operate the machine at high transport  
speeds on hard or slippery surfaces.  
4.  
Do not change the engine governor settings or  
over-speed the engine. The governor controls the  
maximum safe operating speed of the engine.  
Maintain or replace safety and instruction labels, as  
necessary.  
Follow this manual for safe loading, unloading,  
transporting, and storage of this machine.  
Never store the machine or fuel container inside  
where there is an open flame, spark or pilot light  
such as a water heater, furnace, clothes dryer etc.  
Always refer to the operator’s manual for proper  
instructions on off-season storage.  
8.  
9.  
Exercise caution to avoid slipping or falling.  
Look down and behind and use care when in  
reverse or pulling machine towards you.  
Start the engine according to the instructions found  
in this manual and keep feet well away from the  
tines at all times.  
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.  
Disengage all clutch levers 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 inspections.  
Never run an engine indoors or in a poorly  
ventilated area. Engine exhaust contains carbon  
monoxide, an odorless and deadly gas.  
Muffler and engine become hot and can cause a  
burn. Do not touch.  
5.  
6.  
7.  
10.  
11.  
8.  
9.  
10.  
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.  
12.  
13.  
Your Responsibility  
1.  
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.  
The safety label on the tiller is reproduced below for  
your review. To ensure safe operation of the tiller,  
follow the instructions on all labels closely.  
2.  
14.  
15.  
Use caution when tilling near fences, buildings and  
underground utilities. Rotating tines can cause  
property damage or personal injury.  
16.  
17.  
Do not overload machine capacity by attempting to  
till soil to deep at to fast of a rate.  
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.  
18.  
19.  
20.  
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.  
21.  
If situations occur which are not covered in this  
manual, use care and good judgment. Contact your  
dealer or telephone 1-800-800-7310 for assistance  
and the name of your nearest servicing dealer.  
Maintenance & Storage  
1.  
Never tamper with safety devices. Check their  
proper operation regularly.  
2.  
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.  
3.  
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.  
4
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SECTION 2: ASSEMBLING YOUR TILLER  
NOTE: This operator’s manual covers various models  
of tillers. The units illustrated may vary slightly from  
your unit. Follow only those instructions which pertain  
to your model number.  
Insert hex bolt into the top hole of the depth stake  
assembly. Place flat washer on the hex bolt and  
thread “T” knob onto the hex bolt. Tighten securely.  
Tip the tiller back down so it rests on the tines.  
NOTE: References to right or left side of the tiller are  
determined from behind the unit in the operating  
position.  
Hex Bolt  
Flat Washer  
T-Knob  
Hairpin Clip  
Clevis Pin  
To Remove Unit From Carton  
Remove staples, break glue on top flaps, or cut  
tape at carton end and peel along top flap to open  
carton.  
Remove loose parts included with unit (i.e.,  
operator’s manual, etc.).  
Cut corners and lay carton down flat.  
Remove packing material.  
Roll or slide unit out of carton. Check carton  
thoroughly for loose parts.  
Depth Stake  
Extend control cable and lay on the floor. Be careful  
not to bend or kink control cable.  
IMPORTANT: This unit is shipped without gasoline or oil  
in the engine. Be certain to service engine with gasoline  
and oil as instructed in the separate engine manual  
before operating your machine.  
Figure 1  
Attaching Handle Assembly  
Remove the handle adjustment crank, flange nut,  
retainer bracket, shoulder bolt, and lock nut from  
the pivot bracket.  
Loose Parts In Carton  
Depth Stake  
Place the handle assembly in position in the handle  
pivot bracket lining the upper holes in the handle  
with the slots in the pivot bracket. See Figure 2.  
Handle Assembly  
Shift Rod  
Retainer Bracket,  
Shoulder Bolt, & Lock Nut  
NOTE: All hardware needed for assembly is attached  
to the loose parts or the tiller.  
Handle Adjustment Crank  
and Flange Nut  
Before Assembly  
WARNING: Disconnect the spark plug wire  
and ground it against the engine to prevent  
unintended starting.  
Attaching Depth Stake  
Tip the tiller forward so it rests on front  
counterweight.  
Pivot Bracket  
Figure 2  
Unthread the “T” knob from the top of the depth  
stake and remove the flat washer and hex bolt.  
Remove the hairpin clip from the clevis pin.  
Raise the tine shield hinge flap assembly and insert  
the depth stake assembly in the slot (under the tine  
shield) and up through the tine shield assembly.  
Insert clevis pin through the tine shield and depth  
stake assemblies. Secure with hairpin clip.  
Lift up the handle assembly and align the bottom  
holes in the handle assembly with the holes in the  
pivot bracket. Insert shoulder bolt from the left side  
of unit through the pivot bracket and the retainer  
bracket on the right hand side of the unit.  
5
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Retainer Bracket  
Shoulder Bolt & Lock Nut  
T-Handles  
Bracket  
Handle  
Adjustment Rod  
(Model Series 420)  
Gear Shift Rod  
Figure 3  
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 Figure 4.  
Pivot handle assembly into position desired.  
Tighten the bottom bolt, lock nut, and the handle  
adjustment lock securely.  
Gear Shift Rod  
Opening  
Shift Cover  
Rubber Washer  
Flat Washer  
Hairpin Clip  
Handle Adjustment Crank  
Retainer Bracket  
Figure 5  
Attaching Clutch Cable  
Route the clutch cable underneath the handle and  
through the cable clip. Be careful not to bend or  
kink the cable. See Figure 6.  
Handle Adjustment Crank  
Figure 4  
Attaching Gear Shift Rod  
Clutch Cable  
Cable Clip  
Remove the T-handle, hairpin clip, 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 Figure 5.  
Insert the end of the gear shift rod through the  
opening in the top of the shift cover and into the  
shift bracket. Secure with rubber washer first, flat  
washer, and then hairpin clip. See Figure 5.  
Install the nut and T-handle on the gear shift rod.  
Figure 6  
6
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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.  
NOTE: Keep hands out of belt area while unit is  
operating.  
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 unit in neutral, adjust by  
moving the hex nut below the cable bracket down a  
few turns.Tighten the upper hex nut against the  
bracket. See Figure 7.  
Hex Nut  
Now move the shift lever to FORWARD (Wheels  
Forward) position. Carefully engage the clutch by  
squeezing the clutch handle against the handle.  
The wheels should spin.  
If the wheels do not spin with the unit in  
forward, adjust by moving the hex nut which is  
above the cable bracket up a few turns. Tighten the  
bottom hex nut against the bracket.  
Lock  
Washer  
Hex Nut  
Z End  
Recheck both adjustments, and readjust as necessary.  
Make certain hex nuts at cable bracket are tight (do not  
overtighten clutch cable).  
Slot in  
Cable Bracket  
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 belt  
tension.  
(Viewed From Under Handle)  
Figure 7  
Pull the cable upwards to obtain slack and hook the  
Z end of the cable from right to left into the bracket  
on the clutch control (beneath the handle panel).  
Tighten the nut against the cable bracket.  
Tire Pressure  
The tires on your unit may be over-inflated for shipping  
purposes. Reduce the tire pressure before operating  
the unit. 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.  
NOTE: Do not overtighten clutch cable, since too much  
tension may cause it to break.  
Final Clutch Adjustment  
IMPORTANT: Service the engine with oil and gasoline  
before checking this adjustment. Refer to the separate  
engine manual packed with your tiller.  
WARNING: Maximum tire pressure under  
any circumstances is 30 p.s.i. Equal tire  
pressure should be maintained on both  
tires.  
Position the tiller so the front counterweight is  
against a solid object, such as a wall. With the gear  
selection lever in NEUTRAL, start the engine. Refer  
to Operation section.  
7
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SECTION 3: KNOW YOUR TILLER  
Clutch Handle  
Gear Selection  
Handle  
Handle Adjustment  
Handle  
Depth Stake  
Model 410 Series  
Figure 8  
WARNING: Read, understand, and follow  
all instructions and warnings on the  
machine and in this manual before  
operating.  
Reverse  
Reverse wheel drive only.  
Neutral  
Transmission is in neutral.  
Wheels Forward  
Forward wheel drive only.  
Gear Selection Handle  
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.  
Tines Reverse  
Forward wheel drive and reverse tine drive.  
This tiller is designed for the gear selection handle to be  
moved while the engine is running. (It will be difficult to  
obtain all four positions with the engine off.) Pull or push  
the handle so that the indicator on top of shift cover  
points to the area of the operating mode desired.  
WARNING: Make certain unit is in  
NEUTRAL when starting the engine.  
Clutch Handle  
The clutch handle is located beneath the handle.  
Squeezing the clutch handle against the handle  
engages the wheel and tine drive mechanisms.  
NOTE: If difficulty is encountered in moving the gear  
selection handle, refer to the following helpful hints:  
To shift into forward or reverse wheel drive, move  
tiller forward slightly then backward to allow the  
gears to synchronize.  
To shift into forward wheels and tine drive, push  
forward slightly on the gear selection handle and  
slowly engage the clutch handle allowing the gears  
to synchronize.  
Throttle Control  
The throttle control lever is located on the engine. It  
controls the engine speed and stops the engine.  
To stop forward movement and tine drive, release  
the clutch handle. Do not shift gears with the clutch  
handle engaged except when engaging the tines.  
8
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Choke Lever (If Equipped)  
Fuel Shut-Off Valve (If Equipped)  
The choke lever is located on top of the carburetor on  
the back of the engine underneath the muffler. It is used  
to enrich the fuel mixture in the carburetor when starting  
a cold engine.  
Make sure the valve is in the On (horizontal) position  
when starting the unit. 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.  
Be careful when disengaging the Choke,  
especially after the engine warms up, the  
muffler will be hot!  
Engine Controls  
See the separate engine manual for additional  
information and functions of the engine controls.  
Primer Button (If Equipped)  
The primer button is located behind the air cleaner. It is  
used to enrich the fuel mixture in the carburetor when  
starting a cold engine.  
Depth Stake  
The depth stake controls the tilling depth. Refer to  
‘‘Setting the Depth’’ in the Operating Section.  
Handle Adjustment Crank  
The handle may be adjusted to the height desired.  
Loosen the handle height adjustment lock a few turns.  
Pivot handle up or down to desired position. Tighten  
lock. See Figure 8.  
9
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SECTION 4: OPERATING YOUR TILLER  
WARNING: Read, understand, and follow  
all instructions and warnings on the  
machine and in this manual before  
operating.  
Stand at side of tiller. Grasp the starter handle and  
pull out slowly, until it pulls slightly harder. Let rope  
rewind slowly.  
Pull starter handle rapidly. Do not allow handle to  
snap back. Allow it to rewind slowly while keeping a  
firm hold on the starter handle.  
Repeat previous steps until engine starts.  
As engine warms up and begins to operate evenly,  
move choke lever gradually to RUN position. If  
engine falters, return to choke position, then slowly  
move to RUN position.  
Before Starting  
Gas And Oil Fill-Up  
Service the engine with gasoline and oil as instructed in  
the separate engine manual packed with your tiller.  
Read instructions carefully.  
NOTE: See your engine manual packed with your unit  
WARNING: Use extreme care when  
handling gasoline. Gasoline is extremely  
flammable and the vapors are explosive.  
Never fuel machine indoors or while the  
engine is hot or running.  
for more detailed instructions.  
NOTE: After starting and prior to using the tiller for the  
first time, be certain to check the clutch adjustment as  
described in “Checking the Clutch Adjustment” section  
of the Assembly Instructions.  
Starting Engine  
NOTE: When pushing the unit with the engine off, you  
will hear a ratcheting sound (gear noise) which is  
normal.  
To Stop Engine  
Move throttle control to STOP or OFF position.  
Disconnect spark plug wire and ground to prevent  
accidentally starting while equipment is  
unattended.  
WARNING: Be sure no one is standing in  
front of the tiller while the engine is  
running or being started.  
NOTE: After the first ten hours of operation, recheck  
the clutch adjustment. Refer to final clutch adjustment  
in Assembly Instructions.  
Place gear selection lever in NEUTRAL.  
Place the throttle control lever in FAST position or if  
equipped, place the engine speed control in the  
START position.  
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.  
Move choke lever to CHOKE position or, if  
equipped, push primer two (2) or three (3) times.  
Wait about two (2) seconds between each push.  
WARNING: Be certain spark plug wire is  
disconnected and grounded against the  
engine when performing any adjustments.  
NOTE: A warm engine may not require choking or to be  
primed.  
10  
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When using the tiller for the first time, use the  
second adjustment hole from the top (1" of tilling  
depth). See Figure 9.  
To adjust the depth stake, remove the clevis pin and  
hairpin clip. Move the depth stake to the desired setting  
and secure with the clevis pin and hairpin clip.  
To adjust the side shields, remove the wing nuts. Move  
the side shield to the desired position and replace the  
wing nuts. Tighten securely.  
Use This Position  
Transport Position  
First Time  
1”  
3”  
Clevis Pin  
Operating the Tiller  
5”  
Select the depth stake setting.  
Start engine as instructed on the previous page.  
Move gear selection handle to one of the forward  
modes or reverse.  
7”  
WARNING: Do not move the gear selection  
handle with the wheels or tines engaged.  
Make certain the unit is stopped  
completely before changing the gear  
selection. A partial engagement may be  
necessary when engaging tines.  
Squeeze the clutch handle against the handle to  
engage the wheels and tines.  
Use This Hole For  
Lowest (Shallowest)  
Position  
NOTE: Make certain the gear selection indicator is  
correctly positioned before engaging the clutch handle.  
If it is between gears, the engine will stall.  
Side Shields  
To transport 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.  
Use This Hole For  
Highest (Deepest)  
Position  
For best results, it is recommended the garden be tilled  
twice (lengthwise, then widthwise) to pulverize the soil.  
Figure 9  
When breaking up sod and for shallow cultivation,  
use the setting which gives 1" of tilling depth  
(second hole from the top). Place the side shields in  
their lowest position.  
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 (use bottom  
adjustment hole) to give the deepest tilling depth.  
Raise the side shields to their highest position.  
To transport tiller, lower the depth stake (use top  
adjustment hole).  
11  
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SECTION 5: MAKING ADJUSTMENTS  
WARNING: Never attempt to make any  
adjustments while the engine is running,  
except where specified in operator’s  
manual.  
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.  
Handle Adjustment  
To adjust the tension on the belt, refer to Final Clutch  
Adjustment in Assembly Instructions.  
The handle may be adjusted to the height desired and  
on Model 420 series, the handle may also be adjusted  
to be in line with the tiller or swung to the left or right.  
Refer to the handle adjustment in the Know Your Tiller  
section for details.  
Engine Adjustment  
Refer to the separate engine manual for engine  
adjustment instructions.  
12  
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SECTION 6: MAINTAINING YOUR TILLER  
WARNING: Disconnect the spark plug wire  
and ground it against the engine before  
performing any repairs or maintenance.  
Remove tine assemblies and lubricate the tine shafts at  
least once a season.  
Wheel Shafts  
Remove wheel assemblies and lubricate the axle shafts  
at least once a season.  
Engine  
Refer to the separate engine manual for engine  
maintenance instructions.  
Cleaning Tine Area  
Maintain engine oil as instructed in the separate  
engine manual packed with your unit. Read and follow  
instructions carefully.  
Clean the underside of the tine shield after each use.  
The dirt washes off the tines easier if rinsed off  
immediately instead of after it dries. Always towel dry  
the tiller afterwards and apply a light coat of oil or  
silicone to prevent rusting or water damage.  
Service air cleaner every ten hours under normal  
conditions. Clean every hour under extremely dusty  
conditions. Poor engine performance and flooding  
usually indicates that the air cleaner should be  
serviced. To service the air cleaner, refer to the  
separate engine manual packed with your unit.  
IMPORTANT: Never use a "pressure washer” to clean  
your tiller. Water can penetrate tight areas of the tiller  
and its chaincase and cause serious damage to the  
unit.  
IMPORTANT: Never run your engine without air cleaner  
completely assembled.  
Tires  
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 engine manual for correct plug type and  
gap specification.  
Recommended operating tire pressure is  
approximately 14 p.s.i. on 14 inch tires and 20 p.s.i. on  
16 inch tires. (Check sidewall of tire for tire  
manufacturer’s recommended pressure). Maximum tire  
pressure under any circumstances is 30 p.s.i. Equal tire  
pressure should be maintained on both tires.  
Clean the engine regularly with a cloth or brush. Keep  
the cooling system (blower housing area) clean to  
permit proper air circulation which is essential to engine  
performance and life. Be certain to remove all dirt and  
combustible debris from muffler area.  
When installing a tire to the rim, be certain rim is clean  
and free of rust. Lubricate both the tire and rim  
generously.  
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.  
Belt Replacement  
Your tiller has been engineered with a belt made of  
special material (Kevlar Tensile) for longer life and  
better performance. It should not be replaced with an  
off-the-shelf belt. Order all belts through you authorized  
service dealer.  
Lubrication  
Transmission  
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 737-0300.  
Disconnect and ground the spark plug wire against  
the engine.  
Remove the belt cover from the left side of the tiller  
by removing two torx head screws from the top of  
belt cover.  
Clutch Handle  
Remove two hex cap nuts and flat washers from  
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. See Figure 10.  
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.  
Pivot Points  
Lubricate all pivot points and linkages at least once a  
season with light oil.  
Remove belt and reassemble the new belt. Follow  
instructions in reverse order.  
Tine Shafts  
13  
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NOTE: Upon reassembly, make certain the belt is  
routed over the idler pulley and inside of belt keepers by  
engine pulley. See Figure 10.  
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.  
Engine  
Pulley  
Belt Keeper  
Clean the exterior of engine and the entire tiller  
thoroughly. Lubricate the tiller as described in the  
lubrication instructions.  
Hex Bolt  
Idler Pulley  
We do not recommend the use of pressure  
washers to clean your unit. They 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 manual for correct engine  
storage instructions.  
Wipe tines with oiled rag to prevent rust.  
Store 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.  
Figure 10  
14  
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SECTION 7: TROUBLE SHOOTING GUIDE  
Trouble  
Possible Cause(s)  
Corrective Action  
Engine fails to  
start  
Fuel tank empty, or stale fuel.  
Fill tank with clean, fresh gasoline. Fuel will not last over thirty  
days unless a fuel stabilizer is used.  
Throttle control lever not in correct starting Move throttle lever to start position.  
position (if so equipped).  
Blocked fuel line.  
Clean fuel line.  
Dirty aircleaner.  
Refer to the engine manual packed with your unit.  
Move choke to ON position.  
Connect wire to spark plug.  
Clean, adjust gap or replace.  
Choke not in ON position.  
Spark plug wire disconnected.  
Faulty spark plug.  
Engine flooded.  
Unit running on CHOKE.  
Refer to the engine manual packed with your unit.  
Move choke lever to OFF position.  
Engine runs  
erratic  
Spark plug wire loose.  
Connect and tighten spark plug wire.  
Blocked fuel line or stale fuel.  
Clean fuel line; fill tank with clean, fresh gasoline. Fuel will not  
last over thirty days unless a fuel stabilizer is used.  
Vent in gas cap plugged.  
Water or dirt in fuel system.  
Dirty air cleaner.  
Clear vent.  
Drain fuel tank. Refill with fresh fuel.  
Refer to the engine manual packed with your unit.  
Carburetor out of adjustment.  
Engine overheats Engine oil level low.  
Refer to the engine manual packed with your unit.  
Fill crankcase with proper oil.  
Dirty air cleaner.  
Refer to the engine manual packed with your unit.  
Refer to the engine manual packed with your unit.  
Air flow restricted.  
Carburetor not adjusted properly.  
Foreign object lodged in tines.  
Adjust carburetor as instructed in separate engine manual.  
Dislodge foreign object.  
Tines do not  
engage  
Tine clevis pin(s) missing.  
Replace tine clevis pin(s).  
Pulley and idler not in correct  
adjustment.  
Take unit to authorized service dealer.  
Not shifting properly.  
Refer to controls section of operator’s manual for proper  
shifting procedures.  
Control cable not adjusted properly.  
Adjust control cable (see assembly instructions).  
Belt worn and/or stretched.  
Clevis pin missing.  
Replace belt.  
Replace clevis pin.  
Wheels do not  
engage  
Tiller is not being shifted properly.  
Refer to controls section of operator’s manual for proper  
shifting procedures.  
Control cable not adjusted properly.  
Belt worn and/or stretched.  
Adjust control cable (see assembly instructions).  
Replace belt.  
NOTE: For repairs beyond the minor adjustments above, contact your local authorized service dealer.  
15  
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SECTION 8: PARTS LIST FOR MODEL SERIES 410  
1
44  
43  
2
3
4
4
6
5
8
7
9
42  
10  
4
29  
30  
31  
11  
13  
21  
12  
1
23  
22  
32  
24  
27  
33  
28  
18  
21  
4
38  
21  
25  
37  
36  
14  
26  
34  
35  
39  
41  
15  
40  
17  
19  
16  
16  
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Model Series 410  
Ref.  
Ref.  
No.  
Part No.  
No.  
Part Description  
Part No.  
Part Description  
1.  
2.  
710-1017  
786-0168  
686-0095  
712-04063  
715-0120  
786-0117  
710-3008  
712-3010  
736-0242  
710-3180  
710-1007  
619-0009A  
642-0015  
642-0016  
711-0415  
714-0149B  
634-0240  
634-0241  
711-1017  
734-1796  
634-0112  
714-0104  
710-1090  
Hex Screw 1/4-20 x.625  
Shift Cover - Tecumseh  
Crank Shift Assembly  
Hex Lock Nut 5/16-18  
Spiral Pin  
22.  
23.  
24.  
25.  
26.  
27.  
28.  
29.  
30.  
31.  
32.  
33.  
34.  
35.  
36.  
37.  
38.  
39.  
40.  
41.  
42.  
43.  
44.  
686-0031A  
736-0119  
710-0237  
756-0971  
756-0972  
754-0438  
756-0405  
738-0899  
736-0256  
756-0634  
736-0105  
712-0379  
736-0452  
710-1039  
786-0080  
710-0723  
738-0876  
736-3020  
786-0100  
712-0392  
786-0107  
737-0298  
737-0132  
Belt Keeper Bracket Ass’y  
Lock Washer 5/16  
3.  
Hex Cap Screw 5/16-24 x.625  
Inner Pulley Half  
4.  
5.  
Outer Pulley Half  
6.  
Shift Cover Mounting Bracket  
Hex Cap Screw 5/16-18 x.75  
Hex Nut 5/16-18  
V-Belt  
7.  
Flat Idler  
8.  
Bolt 5/16-18 x 1/4-28 x 2.35  
Flat Washer.635 ID x.930 OD  
Flat Pulley  
9.  
Bell Washer.340 ID x.872 OD  
Hex Cap Screw 5/16-18 x 1.75  
Hex Washer Screw 3/8-16 x 1.5  
Frame Counterweight  
Tine Assembly - LH  
10.  
11.  
12.  
13.  
Spring Washer.401 ID x.870 OD  
Flange Lock Nut 3/8-24  
Bell Washer.396 ID x 1.140 OD  
Hex Cap Screw 3/8-24 x 1.0  
Idler Bracket  
Tine Assembly - RH  
14.  
15.  
16.  
Clevis Pin  
Cotter Pin  
Hex Cap Screw 3/8-16 x 1.25  
Shoulder Nut 7/16-20  
Flat Washer.271 ID x.630 OD  
Belt Cover  
Complete Wheel Ass’y - RH (14”)  
Complete Wheel Ass’y - LH (14”)  
Hex Head Screw 1/4-20  
Tire Only (14”)  
17.  
18  
Hex Lock Nut 1/4  
Rim Only (6.0 x 3.25)  
Cotter Pin  
Cable Bracket  
19.  
21.  
Oil Drain Extension  
End Cap  
Flange Screw 5/16-18 x 1.25  
IMPORTANT: For a proper working machine, use Factory  
Approved Parts.  
V-BELTS are specially designed to engage and disengage  
safely. A substitute (non OEM) V-Belt can be dangerous by not  
disengaging completely.  
17  
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Model Series 410  
32  
33  
35  
36  
1
5
6
38  
39  
40  
41  
42  
2
31  
48  
34  
7
45  
46  
9
11  
37  
3
10  
40  
49  
43  
19  
44  
47  
11  
4
20  
12  
13  
24  
14  
50  
25  
51  
52  
26  
15  
21  
51  
53  
25  
1
22  
16  
48  
13  
27  
17  
28  
23  
2
15  
4
3
30  
29  
18  
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Model Series 410  
Ref.  
Ref.  
No.  
Part No.  
No.  
Part Description  
Shaft Seal 1.0 Dia  
Part No.  
786-0086  
Part Description  
1.  
721-0378  
712-0378  
736-0407  
721-0379  
716-0865  
686-0038  
618-0245B  
713-0233  
750-0570  
736-0163  
750-0936  
736-0518  
617-0004  
736-0351  
750-0938  
717-1458  
611-0021  
713-0226  
738-0885  
750-0935  
611-0058  
686-0039  
710-0896  
726-0331  
741-0563  
712-3067  
29.  
30.  
31.  
32.  
33.  
34.  
35.  
36.  
37.  
38.  
39.  
40.  
41.  
42.  
43.  
44.  
45.  
46.  
47.  
48.  
49.  
50.  
51.  
52.  
53.  
Reinforcement Bracket  
Chain Case Gasket  
Hex Cap Screw 1/4-20 x.625  
Lock Washer 1/4  
2.  
Hex Nut 7/16-20  
721-0295  
710-0751  
736-0329  
736-0512  
741-0124  
736-0541  
717-1451A  
713-0435  
736-0265  
716-0235  
718-0237  
711-1087  
732-0863  
741-0862  
718-0234  
717-1409  
736-0442  
732-0614  
736-0518  
611-0016  
738-0884  
736-0336  
750-0931  
617-0003  
3.  
Bell Washer.45 ID x 1.0 OD  
Shaft Seal.75 Dia  
4.  
5.  
Snap Ring.50 Dia  
Flat Washer.281 ID x.875 OD  
Ball Bearing  
6.  
Gear Case Assembly - RH Half  
Shift Assembly  
7.  
Flat Washer  
9.  
Chain - #41 1/2” Pitch x 30 Links  
Space 1.0 ID x 2.0 OD  
Thrust Washer 1.03 ID x 1.62 OD  
Spacer.635 ID x 1.0 OD  
Thrust Washer.445 ID x 1.92 OD  
Idler Gear Assembly  
Spur Gear 16T  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
19.  
20.  
21.  
22.  
23.  
24.  
25.  
26.  
27.  
28.  
Sprocket 11T #41 Chain  
Flat Washer.88 ID x 1.50 OD  
Retainer Ring  
Clutch Key  
Drive Shaft  
Flat Washer.760 ID x 1.50 OD  
Spacer.735 ID x.886 OD  
Spur Gear 46T  
Compression Spring  
Detent Ball  
Clutch Collar  
Tine Shaft Assembly 18T  
Chain - #50 5/8” Pitch x 52 Links  
Jack Shaft 5/8 Dia. X. 2.06 Lg  
Spacer.635 ID x 1.0 OD  
Wheel Shaft Assembly  
Gear Case Assembly - LH Half  
Hex Washer Screw 1/4-14 x.625  
Plug  
Spur Gear 17T  
Flat Washer.69 ID x 1.06 OD  
Wire Ring  
Thrust Washer.445 ID x 1.9 OD  
Intermediate Gear Assembly  
Jack Shaft  
Flat Washer.625 ID x 1.0 OD  
Spacer.635 ID x.86 OD  
Tine Drive Assembly  
Ball Bearing w/Snap Ring  
Hex Patch L-Nut 7/16-20  
19  
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Model Series 410  
4
1
1
3
5
6
2
8
10  
7
11  
13  
9
47  
9
18  
19  
23  
20  
12  
25  
21  
14  
22  
26  
17  
16  
10  
24  
29  
15  
30  
45  
27  
35  
28  
17  
31  
32  
35  
33  
33  
36  
34  
30  
46  
17  
37  
38  
44  
39  
17  
17  
40  
42  
41  
43  
20  
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Model Series 410  
Ref.  
Ref.  
No.  
Part No.  
No.  
Part Description  
Part No.  
726-0106  
Part Description  
Cap Nut  
1.  
2.  
710-1017  
786-0131  
710-0896  
720-0278A  
735-0246A  
647-0014  
786-0118  
786-0098  
649-0017  
720-0210A  
712-3008  
726-0330  
747-0902  
735-0127  
714-0104  
736-0204  
712-04063  
784-0191  
712-0379  
750-0885A  
784-0190  
710-0189  
786-0109  
786-0108  
Tap Screw 1/4-14 x.625  
Handle Cover w/o Throttle  
Hex Washer Screw 1/4-14 x.625  
Foam Grip  
25.  
26.  
27.  
28.  
29.  
30.  
31.  
32.  
33.  
34.  
35.  
36.  
37.  
38.  
39.  
40.  
41.  
42.  
43.  
44.  
45.  
46.  
47.  
747-0432  
786-0113  
710-3005  
736-0117  
710-3008  
738-0849  
786-0085  
712-0421  
686-0044A  
786-0090  
786-0076  
710-0376  
736-0169  
711-0415  
712-3017  
710-3038  
686-0043A  
786-0120  
786-0077  
710-3097  
714-0147  
746-0916  
Rod  
3.  
Rear Tine Shield Flap  
Hex Cap Screw 3/8-16 x 1.25  
Flat Washer.375 ID x.620 OD  
Hex Cap Screw 5/16-18 x.75  
Hex Screw 5/16-18 x.75  
Tine Shield  
4.  
5.  
End Plug  
6.  
Clutch Control Assembly  
Return Bracket - LH  
Return Bracket - RH  
Handle Assembly  
7.  
8.  
9.  
Wing Nut  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
20.  
21.  
22.  
23.  
24.  
Knob  
End Cover Assembly  
Side Shield  
Jam Nut 3/8-16  
Cable Clip  
Shield Bracket RH  
Hex Cap Screw 5/16-18 x 1.0  
Lock Washer 3/8  
Shift Control  
Rubber Washer.33 ID x.87 OD  
Cotter Pin  
Clevis Pin  
Flat Washer.344 ID x.62 OD  
Hex Flange Lock Nut 5/16-18  
Retainer Bracket  
Hex Nut 3/8-16  
Hex Cap Screw 5/16-18 x.875  
Tine Shield Bracket Assembly  
Depth Stake  
Flange Lock Nut 3/8-24  
Spacer.322 ID x.625 OD  
Handle Adjustment Crank  
Hex Screw 5/16-18 x 3.0  
Handle Mounting Bracket - LH  
Handle Mounting Bracket - RH  
Shield Bracket - LH  
Carriage Bolt 3/8-16 x 1.0  
Cotter Pin  
Clutch Cable  
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 Oyster Gray, the part  
number to order would be 700-xxxx-0662.  
Black — 0691; Black, Powder — 0637; Blue, Midnight — 0667; Charcoal — 0483; Grey — 0648;  
Grey, Oyster — 0662; Orange — 0606; Red — 0650; Red, MTD — 0638; Silver — 0629; Yellow — 0674.  
21  
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NOTES  
22  
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NOTES  
23  
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MANUFACTURER’S LIMITED WARRANTY FOR:  
The limited warranty set forth below is given by MTD LLC with  
respect to new merchandise purchased and used in the  
United States, its possessions and territories.  
e.  
MTD does not extend any warranty for products sold or  
exported outside of the United States, its possessions  
and territories, except those sold through MTD’s  
authorized channels of export distribution.  
Replacement parts that are not genuine MTD parts.  
Transportation charges and service calls.  
“MTD”warrants this product 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.  
f.  
g.  
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.  
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 not  
limited to items such as: batteries, belts, blades, blade  
adapters, grass bags, rider deck wheels, seats, snow thrower  
skid shoes, shave plates, auger spiral rubber 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, check your  
Yellow Pages, or contact MTD LLC at P.O. Box 361131,  
Cleveland, Ohio 44136-0019, or call 1-800-800-7310 or 1-  
330-220-4683 or log on to our Web site at  
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 product.  
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.  
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.  
b.  
c.  
Log splitter pumps, valves, and cylinders have a  
separate one year warranty.  
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.  
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.  
IMPORTANT: Owner must present Original Proof of  
Purchase to obtain warranty coverage.  
d.  
Service completed by someone other than an  
authorized service dealer.  
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-800-800-7310, 1-330-220-4683  
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