Cub Cadet Tiller Series 390 User Manual

Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty  
OPERATOR’S MANUAL  
Front Tine Tiller — Model Series 390  
IMPORTANT  
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION  
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.  
FORM NO. 769-02926  
10/27/2006  
PRINTED IN U.S.A.  
CUB CADET, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Safety Labels Found OnYour Tiller  
1
Safety  
Labels  
WARNING  
DO NOT remove safety  
(or any) labels from  
tiller for any reason.  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
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.  
Safe  
Operation  
Practices  
Never remove gas cap or add fuel while the engine  
is hot or running.  
Training  
Read, understand, and follow all instructions on the  
Allow engine to cool at least two minutes before  
refueling  
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.  
Never over fill fuel tank. Fill tank to no more than ½  
inch below bottom of filler neck to provide space for  
fuel expansion.  
Be familiar with all controls and their proper operation.  
Know how to stop the machine.  
Replace gasoline cap and tighten securely.  
If gasoline is spilled, wipe it off the engine and  
equipment. Move machine to another area. Wait five  
minutes before starting the engine.  
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.  
WARNING  
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 five minutes before storing.  
This symbol points out  
important safety in-  
Never allow adults to operate this machine without  
proper instruction.  
structions 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 oper-  
ate this machine. Failure  
to comply with these  
instructions may result in  
personal injury. When you  
see this symbol, HEED  
ITS WARNING!  
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.  
Operation  
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.  
Preparation  
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 injury.  
Never operate this machine without good visibility or  
light. Always be sure of your footing and keep a firm  
hold on the handles.  
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.  
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.  
Disengage clutch levers and shift (if provided) into  
neutral (“N”) before starting the engine.  
Never leave this machine unattended with the engine  
running.  
Exercise extreme caution when operating on or  
crossing gravel surfaces. Stay alert for hidden  
hazards or traffic.  
Never attempt to make any adjustments while engine  
is running, except where specifically recommended in  
the operator’s manual.  
Never operate the machine at high transport speeds  
on hard or slippery surfaces.  
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.  
Extinguish all cigarettes, cigars, pipes and other  
sources of ignition.  
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.  
Never fuel machine indoors.  
4
Download from Www.Somanuals.com. All Manuals Search And Download.  
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.  
Maintenance & Storage  
Never tamper with safety devices. Check their  
proper operation regularly.  
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.  
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 adjust-  
ments, or inspections.  
Safe  
Operation  
Practices  
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 run an engine indoors or in a poorly ventilated  
area. Engine exhaust contains carbon monoxide, an  
odorless and deadly gas.  
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.  
Muffler and engine become hot and can cause a  
burn. Do not touch.  
Use caution when tilling near fences, buildings and  
underground utilities. Rotating tines can cause  
property damage or personal injury.  
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.  
Do not overload machine capacity by attempting to  
till soil too deep at too 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.  
WARNING  
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.  
This symbol points out  
important safety in-  
Keep all shields, guards, and safety devices in place  
and operating properly.  
structions 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 oper-  
ate this machine. Failure  
to comply with these  
instructions may result in  
personal injury. When you  
see this symbol, HEED ITS  
WARNING!  
Never pick up or carry machine while the engine is  
running.  
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.  
The safety labels on the tiller are shown in the  
“Safety Labels” section. To ensure safe operation  
of the tiller, follow the instructions on all labels  
closely.  
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 judgment. Contact your  
dealer or call the customer service number found on  
page two.  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
Tiller Setup  
References to right and left side of tiller are determined  
from behind the unit in the operating position.  
3
Handle Attachment  
1. Identify forward clutch cable (A) and reverse  
clutch cables (B). Figure 3–1.  
Assembly  
NOTE: Stand behind  
the tiller as if you were  
going to operate it. Your  
right hand corresponds  
to right side of  
Figure 3–1: Identify Cables.  
Be sure not to kink cables while attaching.  
2. Hook the “Z” end of the forward clutch cable  
(A) into the forward tine engagement lever  
Figure 3–2.  
tiller; your left hand  
corresponds to  
left side of tiller.  
3. Hook the “Z” end of the reverse clutch cable  
(B) into the reverse tine engagement lever  
Figure 3–2.  
IMPORTANT  
This unit is shipped  
without gasoline or  
oil in the engine. Fill  
up gasoline and oil  
as instructed in the  
accompanying engine  
manual BEFORE  
operating your tiller.  
Figure 3–2: Insert cables into levers.  
4. Remove the hex bolt and cupped washer from  
the right side of the frame. Hold the cable  
guide bracket on the left side of frame as it  
will fall when the bolt is removed.  
Figure 3–3 Step 1.  
5. Insert handle into tiller frame as shown. See  
Figure 3–3 Step 2.  
6. Insert bolt through the cupped washer, frame,  
handle and into the cable guide bracket (note  
the notch in the cable guide bracket goes  
over the flange on the frame.) See Figure  
3–3 Step 3. Tighten the bolt securely after  
securing handle brace as seen in Figure 3–4.  
Figure 3–3: Insert handle into frame.  
6
Download from Www.Somanuals.com. All Manuals Search And Download.  
7. Locate the carriage bolt, bell washer and  
hand knob packed with your unit.  
8. Insert the carriage bolt through the welded  
bracket on the handle, bell washer, handle  
brace and into the hand knob.  
3
See Figure 3–4.  
Assembly  
9. Select one of the three handle height  
positions (three notches in welded handle  
bracket) and tighten the hand knob to secure  
the handle in the desired position.  
Figure 3–4: Remove hardware from lower handle.  
Figure 3–4. Return to lower handle and  
tighten the hex bolt securely  
Depth Gage Attachment  
1. Disassemble the depth gage assembly as  
seen in Figure 3–5. Retain the pin and clip for  
later reassembly.  
NOTE: Stand behind  
the tiller as if you were  
going to operate it. Your  
right hand corresponds  
to right side of  
tiller; your left hand  
corresponds to  
left side of tiller.  
Figure 3–5: Disassemble depth gage if necessary.  
2. Remove the two screws from the rear of the  
tiller frame as shown in Figure 3–6.  
IMPORTANT  
This unit is shipped  
without gasoline or  
oil in the engine. Fill  
up gasoline and oil  
as instructed in the  
accompanying engine  
manual BEFORE  
operating your tiller.  
3. Insert the depth gage bracket into the frame  
and reinstall the two screws removed earlier.  
Tighten the hex bolts securely.  
See Figure 3–6.  
Figure 3–6: Insert depth gage bracket into frame.  
4. Insert the depth stake into the depth gage  
bracket assembly as seen in Figure 3–7.  
Secure the pin with the clip removed earlier.  
The depth stake can be placed at various  
positions. For setup purposes it is suggested  
that the depth stake be assembled with the  
stake just above or level with the ground  
surface. For further instructions on the  
Depth Stake refer to adjustments section  
of this manual.  
Figure 3–7: Reassemble depth stake.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Reverse Tine  
Engagement Lever  
Your Tiller  
4
Handle  
Operating  
Your Tiller  
Forward Tine  
Engagement Lever  
Throttle Control  
Handle Knob  
Depth Stake  
WARNING  
The tine clutch control  
is a safety device. Never  
attempt to bypass its  
operation.  
End Cap  
Tiller Tines  
Use extreme care when  
handling gasoline.  
Figure 4–1:The major parts of the tiller  
Gasoline is extremely  
flammable and the vapors  
are explosive. Never fuel  
tiller indoors or while  
engine is hot or running.  
Extinguish cigarettes,  
cigars, pipes, and other  
sources of ignition.  
WARNING: Read, understand, and  
Tines and End Caps  
Tilling tines and end caps are used to cultivate, furrow  
and prepare your garden for seeding. End caps are used  
to avoid tilled soil from overflowing onto unwanted areas.  
follow all instructions and warnings  
posted on the machine and in this  
manual before operating.  
Handle Knob  
Forward Tine Engagement Lever  
The forward tine control lever is located beneath the  
upper section of the handle. Squeezing the lever against  
the handle engages the tine drive. Release the lever to  
stop the tines from turning.  
The handle height may be adjusted. Loosen the knob to  
change the position. Tighten hardware when complete.  
Keep hands and feet away  
from the tines. Refer to  
warning label on the unit.  
Engine Controls  
NOTE: Refer to engine manual for additional information  
and functions of the engine controls.  
Reverse Tine Engagement Lever  
The reverse tine control lever is located on top of the  
upper section of the handle. Pulling the lever toward  
operator engages the tines in reverse. Release the lever  
to stop the tines from turning in reverse.  
Throttle Control  
The throttle controls engine’s speed. Use maximum  
engine speed when tilling. Stop the engine when  
tranporting the tiller.  
Choke Lever  
Choke lever is located next to the throttle lever. It is used  
to enrich the fuel mixture when starting a cold engine.  
Note: Never engage both the forward and reverse tine  
drives at the same time. Engaging both forward and  
reverse tine drives at the same time could damage the  
belt drives and cause the engin to stall.  
Recoil Starter  
The recoil starter is located on the right side of the engine  
and is used to manually start the engine.  
Depth Stake  
The depth stake controls the tilling depth. Refert to  
Operating Your Tiller later in this section for further  
instructions on its use.  
8
Download from Www.Somanuals.com. All Manuals Search And Download.  
OperatingYour Tiller  
4
Operating  
Your Tiller  
Choke  
Throttle  
WARNING  
Be sure no one other  
than the operator is  
standing near the tiller  
while starting engine  
or operating the unit.  
Never run engine  
indoors or in enclosed,  
poorly ventilated  
areas. Engine exhaust  
contains carbon  
monoxide, an odorless  
and deadly gas. Keep  
hands, feet, hair and  
loose clothing away  
from any moving parts  
on engine and tiller.  
Figure 4–2: Engine choke and throttle controls  
WARNING: Read, understand, and  
follow all instructions and warnings  
posted on the machine and in this  
manual before operating.  
3. Move throttle control 1/3 of the way toward the  
FAST position.  
4. Move/pull out choke lever to CHOKE position when  
starting cold engine.  
5. Pull rope out slowly until engine reaches the  
beginning of its compression cycle (rope will pull  
slightly harder at this point).  
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.  
6. Pull rope with a rapid, continuous, full arm stroke.  
Keep a firm grip on handle. Let rope rewind slowly.  
Do not let recoil starter snap back against engine.  
Repeat until engine starts.  
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.  
7. Move/push in choke lever once engine warms up  
enough to run smoothly.  
8. Move throttle to FAST position for tilling.  
Starting Engine  
Stopping Engine  
Refer to the engine  
manual for detailed  
engine instructions.  
Move throttle control lever to STOP or OFF position.  
Refer to the engine manual for instructions on stopping  
the engine.  
WARNING: Be sure no one is standing  
in front of the tiller while the engine is  
running or being started.  
Refer to the engine manual for instructions.  
1. Attach spark plug wire to spark plug. Make sure the  
metal cap on the end of the spark plug is fastened  
securely over the metal tip on the spark plug.  
2. Make sure that the tine clutch control is disengaged.  
9
Download from Www.Somanuals.com. All Manuals Search And Download.  
UsingYour Tiller  
Your tiller is designed for seed bed preparation, cultivat-  
ing, furrowing, and mulching.  
4
Wheel Position  
The tiller is shipped with the wheels adjusted so that the  
unit sits level. The wheels need to be adjusted to meet  
your tilling needs before operation. This adjustment is  
made by removing the clevis pin from the wheel yoke  
and raising the wheels to the desired height.  
See Figure 4–3.  
Operating  
Your Tiller  
Figure 4–3: Wheel and depth stake positioning.  
Figure 4–4: Wheel and Yoke forward for shallow tilling.  
Figure 4–5: Wheel and Yoke back for deeper tilling.  
Tilling Depth and Wheel  
Yoke Adjustment  
Placement of wheel yoke will effect depth of tilling.  
WARNING  
Yoke Forward  
Place the wheel yoke so that wheels are forward (near-  
est to tines) for shallow tilling, cultivating and transport.  
See Figure 4–4.  
Be sure no one other  
than the operator is  
standing near the tiller  
while starting engine  
or operating the unit.  
Never run engine  
indoors or in enclosed,  
poorly ventilated  
areas. Engine exhaust  
contains carbon  
monoxide, an odorless  
and deadly gas. Keep  
hands, feet, hair and  
loose clothing away  
from any moving parts  
on engine and tiller.  
Yoke to Back  
Place the wheel yoke so that wheels are toward rear  
(closest to depth stake) for deep tilling and cultivating.  
See Figure 4–5.  
Depth Stake  
The depth stake acts as a brake for the tiller and  
controls the depth and speed at which the machine will  
operate. Remove the clevis pin and hairpin clip to raise  
or lower depth stake. See Figure 4–6.  
Handle Pressure  
Further control of tilling depth and travel speed can be  
obtained by variation of pressure on the handles.  
A downward pressure on the handles will reduce the  
working depth and increase the forward speed. An  
upward pressure on the handles will increase the  
working depth and reduce the forward speed.  
The type of soil and working conditions will determine  
the actual setting of the depth stake and the handle  
pressure required.  
Refer to the engine  
manual for detailed  
instructions pertaining  
to the engine controls.  
Transporting and  
Storing the Tiller  
To transport and store the tiller move the throttle to the  
stop position. Pivot the depth stake away from ground up  
between wheels. See Figure 4-6.  
Figure 4–6: Pivot depth stake for transportation.  
10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Tilling Procedure  
When tilling, leave approximately eight inches of untilled  
soil between the first and second tilling paths, then make  
the third path between the first and second, Figure 4–7.  
In some soils, the desired depth is obtained the first  
time over the garden. In other soils, the desired depth  
is obtained by going over the garden two or three times.  
Passes should be made across the length and width of  
the garden alternately. Rocks which are turned up should  
be removed from the garden area.  
4
4 5 2 3 1  
Operating  
Your Tiller  
Figure 4–7: Recommended tiller paths.  
With the outer tines installed, the working width of the  
machine is 24 inches. This width may be expanded to  
26 inches by removing the clevis and cotter pins, sliding  
each outer tine outward away from the center of the unit  
and resecuring the pins in the holes provided.  
See Figure 4–8.  
WARNING  
Removing End Caps  
The end cap, which is used to avoid tilled soil from  
overflowing onto unwanted areas, are removable from the  
axle. Remove the hairpin clip and clevis pin that secure  
each end cap and slide the end caps off the axle.  
See Figure 4–9.  
Be sure no one other  
than the operator is  
standing near the tiller  
while starting engine  
or operating the unit.  
Never run engine  
indoors or in enclosed,  
poorly ventilated  
areas. Engine exhaust  
contains carbon  
monoxide, an odorless  
and deadly gas. Keep  
hands, feet, hair and  
loose clothing away  
from any moving parts  
on engine and tiller.  
Figure 4–8: Moving and removing outer tines.  
Cultivating  
For cultivating, a two to three inch depth is desirable.  
The tine width can be reduced to 13 inches by removing  
the outer tines completely from the tiller. See figure 4–8.  
When laying out plant rows, be sure to allow enough  
width to permit cultivation between the rows. In growing  
corn or similar crops, check-row planting will permit cross  
cultivation and practically eliminate hand hoeing.  
Figure 4–10.  
Figure 4–9: Removing end caps.  
The tiller has many uses other than tilling and cultivating  
a garden. One of these is the preparation of lawn area for  
seeding. The tiller will prepare a deep seed bed which will  
be free of hard untilled spots, allowing a better stand of  
grass to grow. The tiller is very useful for loosening hard  
soil for excavation with a shovel; No tedious handwork  
will be necessary. Your tiller may be used for mixing  
compost in the pile or for mixing it with the soil in your  
garden. This should be done after the soil has been  
broken to the full working depth. The compost should be  
worked in to a depth of six to seven inches. This may be  
done by working the length of the garden and then by  
making separate passes across its width. The addition  
of decayed organic matter will substantially increase  
the fertility of your garden. For proper decaying action,  
fertilizer should be applied and worked in with the mulch  
materials. Breaking up leaves and straw and mixing it with  
several inches of soil allows proper aeration of the plant  
root system and retards the growth of weeds.  
Refer to the engine  
manual for detailed  
instructions pertaining  
to engine controls.  
Figure 4–10: Allow area between rows for cultivation.  
11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
WARNING: Disconnect the spark plug  
wire and ground it against the engine  
before performing any repairs.  
Lubrication  
Pivot Points  
Remove the belt cover and lubricate all pivot points and  
linkages at least once a season with light oil. Keep belts  
free of lubrication.  
Engine  
Refer to the separate engine manual for engine  
maintenance instructions.  
5
Tine Shafts  
Maintaining  
Your Tiller  
Maintain engine oil as instructed in the separate  
engine manual packed with your unit. Read and follow  
instructions carefully.  
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.  
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.  
Chain Drive  
The chain drive is pre-lubricated and sealed at factory.  
Cleaning Tine Area  
IMPORTANT: Never run your engine without air cleaner  
completely assembled.  
Clean 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.  
WARNING  
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.  
Disconnect the spark  
plug wire and ground  
it against the engine  
before performing  
any repairs or  
IMPORTANT: Never use a “pressure washer” to clean  
your tiller. Water can penetrate tight areas of the tiller  
and its chain case and cause serious damage to unit.  
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.  
maintenance.  
Belt Replacement  
Reverse Drive Belt  
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.  
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 self-tapping screws and hex stop nut  
and washer.  
See Figure 5–1.  
3. Remove belt from transmission pulley and then from  
around the reverse idler pulley. See Figure 5–2.  
4. To reassemble new belt. Follow instructions in reverse  
order. Be sure to place wider side of belt against  
transmission and idler pulley while slimmer side goes  
over the engine pulley. See Figure 5–2.  
Figure 5–1: Screw and nut removal.  
NOTE: Upon reassembly, make certain the belt is routed  
over the idler pulley and inside of belt keepers by engine  
pulley. See Figure 5–2.  
Figure 5–2: Reverse drive belt removal.  
1ꢀ  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Belt Replacement  
Forward Drive Belt  
1. Remove reverse drive belt as instructed in the  
previous section.  
5
2. Remove the return spring. See Figure 5–3.  
3. Remove idler pulley bolt and move belt from under  
idler pulley keeper. See Figure 5–4.  
Maintaining  
Your Tiller  
4. The forward idler belt will not clear the belt keepers  
near the engine pulley. You must remove the reverse  
idler bracket to allow the belt to move off of the engine  
pulley. Remove the two securing screws and move  
the bracket toward the transmission pulley. Retain the  
screws for reassembly. See Figure 5–5.  
5. Remove belt from the reverse idler pulley and then  
from around the transmission pulley. See Figure 5–6.  
Figure 5–4: Idler pulley keeper belt removal.  
6. To reassemble new belt. Follow instructions in reverse  
order. Be sure to place wider side of belt away from  
the engine and transmission pulleys.  
NOTE: Upon reassembly, make certain the idler pulley  
keeper is as shown in Figure 5–4. Take note of the  
notch on the bottom of the keeper and alignment when  
reassembling with the replacement belt.  
WARNING  
Remove  
Screws  
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.  
Do not push down  
on handles so that  
wheels are lifted off  
the ground while  
Figure 5–5: Bracket screw removal.  
using the tine drive,  
or tiller could move  
backward and cause  
personal injury.  
Return Spring  
Never attempt  
to make any  
adjustments  
while engine is  
running, except  
where specified in  
operator’s manual.  
Figure 5–3: Return spring removal.  
Figure 5–6: Forward drive belt removal.  
13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Cable Adjustment  
From time to time you may need to adjust the tension on  
the forward and reverse tine engagement cables.  
1. Disconnect and ground the spark plug wire against  
the engine.  
5
Reverse Tine  
Engagement Cable  
2. Adjust either the forward or reverse clutch cable by  
loosening the hex nut. See Figure 5–8.  
Maintaining  
Your Tiller  
3. Turn the cable collar section one or two turns to add or  
lesson tension on the cable. See Figure 5–9.  
4. Retighten the lock nut against the cable collar.  
See Figure 5–10.  
Forward Tine  
Engagement Cable  
5. With the forward and reverse tine engagement  
handles in neutral (released) positions, pull the starter  
rope several times. The tines should not turn. If they  
turn forward, adjust the forward tine engagement  
cable to release tension using the previous steps in  
this section. If the tines turn toward rear, adjust the  
reverse tine engagement cable to lesson the tension  
as with previous steps. Check again for correct  
tension on cables.  
Figure 5–7: Reverse drive belt removal.  
WARNING  
Disconnect the spark  
plug wire and ground  
it against the engine  
before performing  
any repairs or  
Lock Nut  
maintenance.  
Figure 5–8: Reverse drive belt removal.  
Cable Collar  
Lock Nut  
Figure 5–9: Reverse drive belt removal.  
Figure 5–10: Reverse drive belt removal.  
14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
3. Refer to the engine manual for correct engine  
storage 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.  
4. Wipe tines with oiled rag to prevent rust.  
5. Store tiller in a clean, dry area. Do not store next to  
corrosive materials, such as fertilizer.  
1. Clean the exterior of engine and the entire tiller  
thoroughly. Lubricate the tiller as described in the  
lubrication instructions.  
6
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.  
Trouble  
Shooting  
Guide  
2. 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.  
WARNING  
Trouble  
Engine fails to start Fuel tank empty, or stale fuel.  
Possible Cause(s)  
Corrective Action  
Fill tank with clean, fresh gasoline. Fuel will not last  
over thirty days unless a fuel stabilizer is used.  
Do not move gear  
selection handle  
Throttle control lever not in correct Move throttle lever to start position.  
with the wheels or  
tines engaged. Make  
certain the unit is  
stopped completely  
before changing the  
gear selection. A  
starting position (if so equipped).  
Blocked fuel line.  
Dirty air cleaner.  
Choke not in ON position.  
Spark plug wire disconnected.  
Faulty spark plug.  
Clean fuel line.  
Refer to the engine manual packed with your unit.  
Move switch to ON position.  
Connect wire to spark plug.  
Clean, adjust gap or replace.  
Refer to the engine manual packed with your unit.  
Engine flooded.  
Engine runs erratic Unit running on CHOKE.  
Spark plug wire loose.  
Blocked fuel line or stale fuel.  
Move choke lever to OFF position.  
Connect and tighten spark plug wire.  
Clean fuel line; fill tank with clean, fresh gasoline. Fuel will  
not last over thirty days unless a fuel stabilizer is used.  
Clear vent.  
Drain fuel tank. Refill with fresh fuel.  
Refer to the engine manual packed with your unit.  
Refer to the engine manual packed with your unit.  
partial engagement  
may be necessary  
when engaging tines.  
Vent in gas cap plugged.  
Water or dirt in fuel system.  
Dirty air cleaner.  
Do not push down  
on handles so that  
wheels are lifted off  
the ground while  
using tine drive, or  
the tiller could move  
backward and cause  
personal injury.  
Carburetor out of adjustment.  
Engine overheats  
Engine oil level low.  
Dirty air cleaner.  
Air flow restricted.  
Fill crankcase with proper oil.  
Refer to the engine manual packed with your unit.  
Refer to the engine manual packed with your unit.  
Carburetor not adjusted properly. Adjust carburetor as instructed in separate engine manual.  
Tines do not  
engage  
Foreign object lodged in tines.  
Tine clevis pin(s) missing.  
Pulley and idler not in correct  
adjustment.  
Dislodge foreign object.  
Replace tine clevis pin(s).  
Take unit to authorized service dealer.  
Never attempt  
to make any  
adjustments while  
the engine is  
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.  
Replace belt.  
running, except  
where specified in  
operator’s manual.  
Tines skip over  
ground  
Improper rotation.  
Forward rotation should only be used on soil that has  
already been tilled, not on virgin soil.  
Wheels do not  
engage  
Clevis pin missing.  
Replace clevis pin.  
Tiller is not being shifted 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.  
Replace belt.  
15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10  
6
9
4
1
11  
2
12  
13  
5
3
7
2
8
14  
50  
16  
54  
15  
55  
19  
30  
22  
49  
21  
29  
26  
28  
27  
20  
38  
31  
32  
23  
35  
36  
37  
42  
56  
34  
37  
25  
24  
33  
30  
40  
39  
41  
56  
23  
30  
43  
47  
46  
27  
48  
16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
9
Ref. Part No.  
Part Description  
Ref. Part No.  
Part Description  
1
2
3
4
5
6
7
8
9
712-0442 Acorn Lock Nut 1/4-20  
736-3020 Flat Washer.271” I.D. x.630” O.D.  
720-0270A Reverse Handle Grip  
731-1600 Handle Cover w/o throttle  
710-0779A Truss Mach. Scr. #10 x 1/2” Lg.  
720-0274 Handle Grip  
28 710-0805 Hex Bolt 5/16-18 x 1.5” Lg.  
29 710-0189 Hex Bolt 5/16-18 x 3” Lg.  
30 736-0242 Wash. Bell.340” I.D. x.872” O.D.  
31 711-1036A Spec. Hex Nut  
Illustrated  
Parts List  
32 736-0119 L-Wash. 5/16” I.D.  
Model 390  
Series  
33 710-3008 Hex Bolt 5/16-18 Gr. 5  
34 786-0129 Cable Guide Bracket  
35 710-0604A Hex Washer Screw 5/16-18 x.62” Lg.  
36 710-0602 Hex Wash. Hd.TT-Tap Scr.  
37 738-0934 Shdl. Bolt 5/16-18  
712-3006 Hex Nut 1/4-20 Gr.2  
726-0135 Cap Speed Nut  
686-0083 Clutch Handle Assembly  
10 720-0269 Clutch Grip  
11 710-0641 Hex Bolt 1/4-20 x 2.25” Lg. Gr.5  
12 731-1645A Clutch Handle Holder  
13 736-0140 Flat Washer.385” I.D. x.62” O.D.  
14 686-0014A Reverse Handle Ass’y  
15 736-0264 Flat Washer.344” I.D. x.62” O.D.  
16 649-04040 Handle Assembly Comp.  
19 749-1401 Handle Brace  
38 786-0138A Frame (R.H.)  
39 786-0139A Frame (L.H.)  
40 736-0171 Lock Washer 7/16  
41 712-0240 Jam Nut 7/16-20 Gr. 2  
42 710-0176 Hex Bolt 5/16-18 x 2.75” Lg.  
43 712-0429 Hex Nylon Nut 5/16-18 Thd.  
46 686-0081A Wheel Hanger Bracket Assembly  
47 734-1781 Wheel Ass’y 8” x 1.75”(Plastic)  
734-1566 Wheel Ass’y 8” x 1.75” (Steel)  
48 738-0929 Shoulder Screw.496 I.D. x 1.445 O.D.  
49 750-0890 Spacer  
To order replacement  
parts, contact your  
local Cub Cadet dealer;  
or call our dealer  
locator number at  
1 (877) 282-8684;  
or log onto  
20 736-0921 Lock Washer 1/2  
21 710-3194 Hex Bolt 1/2-20 Gr. 5  
22 786-0005 Depth Bar  
23 714-0149B Cotter Pin  
24 712-04063 Hex Flange L-Nut 5/16-18 Thd. Gr.5  
25 786-0003 Tail Piece Bracket (L.H.)  
26 786-0004 Tail Piece Bracket (R.H.)  
27 711-0415 Clevis Pin  
50 710-1236 Carr. Bolt 5/16-18 x 1  
51 736-0242 Bell. Wash.34” I.D.  
52 720-0195 Hand Knob  
53 750-0470 Spacer  
1ꢁ  
Download from Www.Somanuals.com. All Manuals Search And Download.  
26  
25  
48  
24  
24  
23  
13  
30  
29  
31  
49  
34  
3
27  
28  
32  
35  
36  
10  
42  
33  
6
10  
†††Honda Engine  
45  
22  
38  
14  
50  
9
7
5
53  
52  
51  
6
10  
8
54  
43  
44  
7
11  
4
47  
5
46  
1
19  
16  
2
20  
3
21  
17  
18  
18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Ref. Part No.  
Part Description  
Ref. Part No.  
Part Description  
9
1
2
3
4
5
6
7
8
9
712-0392 Hex L-Stop nut 1/4-28  
736-3020 Flat Wash.266” I.D. x.625” O.D.  
710-0599 Hex Washer TT-Tap Scr. 1/4-20 x.5”  
711-0920 Belt Cover Bolt  
26 748-0350 Pulley Mounting Adapter  
27 736-0112 Bell-Wash.525” I.D. x 1.5” O.D.  
28 712-3029 Hex Jam Nut 1/2-20 Thd.  
29 732-0697 Return Spring  
Illustrated  
Parts List  
712-04063 Hex Flange Top L-Nut 5/16-18  
710-0723 Hex Hd. Scr. 3/8-16 x 1.25” Lg.  
756-0313 Flat Idler Pulley 2.12” O.D.  
786-0149 Idler Belt Keeper  
30 786-0040B Reverse Bracket  
31 736-0119 Lock Washer 5/16  
32 710-0237 Hex Bolt 5/16-24 x.625”  
33 756-0971 Engine Inner Half Pulley  
34 756-0600 Reverse Engine Pulley  
35 736-0452 Bell Washer.396” I.D. x 1/14” O.D.  
36 710-1093 Hex Bolt 3/8-24 x 1.00”  
38 686-0013 Reverse Arm Assembly  
42 786-0041 Reverse Belt Keeper  
43 710-0502A Hex L-Wash.TT-Tap 3/8-16 x 1.25”  
44 786-0145A Engine Plate  
Model 390  
Series  
786-0144 Idler Bracket  
10 712-0266 Hex Cent. Jam Nut 3/8-16 Thd.  
11 786-0057 Belt Cover  
13 786-0043A Tine Shield  
14 710-3008 Hex Hd. Cap Scr. 5/16-18 x.75” Lg  
16 686-0091 Chain Case Assembly Complete  
17 686-0106 Outer Disc Plate Assembly  
18 714-0149B Internal Cotter Pin  
19 711-0415 Clevis Pin  
45 786-0053 Tine Shield Bracket  
46 736-0171 L-Wash. 7/16” I.D.  
To order replacement  
parts, contact your  
local Cub Cadet dealer;  
or call our dealer  
locator number at  
1 (877) 282-8684;  
or log onto  
20 642-0023 Outer Tine Assembly L.H.  
642-0024 Outer Tine Assembly R.H.  
21 642-0003 Inner Tine Assembly L.H.  
642-0002 Inner Tine Assembly R.H.  
22 746-0918 Forward Clutch Cable  
23 746-0953 Reverse Clutch Cable  
24 756-0585 Fl-Pulley 6” Dia.  
47 712-0240 Hex Nut 7/16-20 Thd.  
48 754-0428 V-Belt (Forward) 1/2 x 41.9”  
49 754-0429 V-Belt (Reverse) 3/8 x 45.68”  
50 738-0102 Shld. Screw.498 x 1.445  
51 738-0930 Shld. Screw.560 x.165  
52 710-0805 Screw 5/16-18 x 1.50  
53 712-3010 Hex Nut 5/16-18  
25 750-0892 Spacer.64” Dia. x 2.4” Lg.  
54 736-0242 Bell Washer  
19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MANUFACTURER’S LIMITED WARRANTY FOR  
The limited warranty set forth below is given by Cub Cadet LLC with  
respect to new merchandise purchased and used in the United States, its  
possessions and territories.  
e. Replacement parts that are not genuine Cub Cadet parts.  
f. Service completed by someone other than an authorized service  
dealer.  
“Cub Cadet” 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  
Cub Cadet for use with the product(s) covered by this manual will void  
your warranty as to any resulting damage.  
g. Transportation charges and service calls.  
No implied warranty, including any implied warranty of merchant-  
ability of fitness for a particular purpose, applies after the applicable  
period of express written warranty above as to the parts as identi-  
fied. 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 Cub Cadet. During  
the period of the warranty, the exclusive remedy is repair or replace-  
ment 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. Cub Cadet 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 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.  
HOW STATE LAW RELATES TO THIS WARRANTY: This limited war-  
ranty gives you specific legal rights, and you may also have other rights  
which vary from state to state.  
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, 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  
Cub Cadet LLC at P.O. Box 361131, Cleveland, Ohio 44136-0019, or call  
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 have a separate one year  
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.  
IMPORTANT: Owner must present Original Proof of Purchase to obtain  
warranty coverage.  
d. Cub Cadet does not extend any warranty for products sold or exported  
outside of the United States, its possessions and territories, except  
those sold through Cub Cadet’s authorized channels of export distribu-  
tion  
Cub Cadet LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-8ꢁꢁ-ꢀ8ꢀ-8684  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Conair Electric Shaver MN252CSC User Manual
Continental Refrigerator Freezer DLUCF27 SS User Manual
Crosley Turntable CR 77CD User Manual
Dacor Double Oven DYO230FS User Manual
Digicom Headphones EDR 10 User Manual
Edelbrock Automobile Parts YZ WR400 User Manual
Frigidaire Air Conditioner P N 66121617 User Manual
Furman Sound Stereo Amplifier SP 20AB User Manual
Garland Cooktop RGTSA 2424 1 User Manual
GE Monogram Oven ZSC2200 User Manual