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.
Parts List............................................................................................................16
FINDING MODEL NUMBER
This Operator’s Manual is an important part of your new tiller. It will help you assemble, prepare and
maintain the unit for best performance. Please read and understand what it says.
Before you start assembling your new equipment, please locate the model plate on the
equipment and copy the information from it in the space provided below. The information on
the model plate is very important if you need help from our Customer Support Department or
an authorized dealer.
•You can locate the model number by standing in the operating position behind the unit and looking
down at the frame on the right side. A sample model plate is explained below. For future reference,
please copy the model number and the serial number of the equipment in the space below.
Copy the model number here:
Copy the serial number here:
ENGINE INFORMATION
The engine manufacturer is responsible for all engine-related issues with regards to performance, powerrating, specifications, warranty and service. Please refer to the engine manufacturer’s Owner’s/Operator’s
Manual packed separately with your unit for more information.
CONTACTING CUSTOMER SUPPORT
If you have difficulty assembling this product or have any questions regarding the controls, operation or
maintenance of this unit, please call Customer Support Department.
Call 1- (330) 220-4MTD (4683) or 1- (800)-800-7310 to reach a Customer Support
representative. Please have your unit’s model number and serial number ready when you
call. See previous section to locate this information. You will be asked to enter the serial
number in order to process your call.
For more details about your unit, visit our website at www.mtdproducts.com
2
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 exhaus t, s om e o f it s con st itu ents , a nd certain vehicle c om ponents contain or e m it
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. Failure to observe the
following safety instructions could result in serious injury or death.
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.
2.Be familiar with all controls and their proper
operation. Know how to stop the machine and
disengage them quickly.
3.Never allow children under 14 years old to operate
this machine. Children 14 years old and ov er should
read and understand the operation instructions and
safety rules in this manual and should be trained
and supervised by a parent.
4.Never allow adults to operate this machine without
proper instruction.
5.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.
Preparation
1.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.
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.
3.Disengage clutch levers and shift (if provided) into
neutral (“N”) before starting the engine.
4.Never leave this machine unattended with the
engine running.
5.Never attempt to make any adjustments while
engine is running, except where specifically
recommended in the operator’s manual.
6.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.
7.Use only an approved gasoline container.
8.Extinguish all cigarettes, cigars, pipes and other
sources of ignition.
9.Never fuel machine indoors.
10.Never remove gas cap or add fuel while the engine
is hot or running.
11.Allow engine to cool at least two minutes before
refueling.
12.Never over fill fuel tank. Fill tank to no more than ½
inch below bottom of filler neck to provide space for
fuel expansion.
13.Replace gasoline cap and tighten securely.
14.If gasoline is spilled, wipe it off the engine and
equipment. Move machine to another area. Wait 5
minutes before starting the engine.
15.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.).
16.Allow machine to cool 5 minutes before storing.
Operation
1.Do not put hands or feet near rotating parts. Contact
with the rotating parts can amputate hands and feet.
2.Do not operate machine while under the influence
of alcohol or drugs.
3.Never operate this machine without good visibility
or light. Always be sure of your footing and keep a
firm hold on the handles.
4.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.
5.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.
6.Exercise extreme caution when operating on or
crossing gravel surfaces. Stay alert for hidden
hazards or traffic. Do not carry passengers.
7.Never operate the machine at high transport
speeds on hard or slippery surfaces.
8.Exercise caution to avoid slipping or falling.
3
9.Look down and behind and use care when in
reverse or pulling machine towards you.
10.Start the engine according to the instructions found
in this manual and keep feet well away from the
tines at all times.
11.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.
12.Disengage all clutch levers and stop engine before
you leave the operating position (behind the
handles). Wait until the tines come to a comple te
stop before unclogging the tines, making any
adjustments, or inspections.
13.Never run an engine indoors or in a poorly
ventilated area. Engine exhaust contains carbon
monoxide, an odorless and deadly gas.
14.Muffler and engine become hot and can cause a
burn. Do not touch.
15.Use caution when tilling near fences, buildings and
underground utilities. Rotating tines can cause
property damage or personal injury.
16.Do not overload machine capacity by attempting to
till soil to deep at to fast of a rate.
17.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.Keep all shields, guards and safety devic es in place
and operating properly.
19.Never pick up or carry machine while the engine is
running.
20.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.
4.Do not change the engine governor settings or
over-speed the engine. The governor controls the
maximum safe operating speed of the engine.
5.Maintain or replace safety and instruction labels, as
necessary.
6.Follow this manual for safe loading, unloading,
transporting, and storage of this machine.
7.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.
8.Always refer to the operator’s manual for proper
instructions on off-season storage.
9.If the fuel tank has to be drained, do this outdoors.
10.Observe proper disposal laws and regulations for
gas, oil, etc. to protect the environment.
Y our 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.
2.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.
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
SECTION 2: ASSEMBLING YOUR TILLER
NOTE: This operator’s guide covers three different
model tillers. Models 340 thru 345 have forward tine
drive only. Model 390 has both forward and reverse tine
drive. Follow only the in st ruct ions which pertain to your
model tiller. See the mode l plate on your tiller for the
correct model number.
NOTE: References to right or left side of the tiller are
determined from behind the unit in the operating
position.
Removing 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 all loose parts included with unit (i.e.,
operator’s manual, etc.)
•Cut corners and lay carton down flat.
•Remove packing material.
•Roll or sl ide u nit o ut of c art on. Ch eck car ton
thoroughly for loose parts.
•Extend control cable(s) to the rear of the tiller and
lay them on the floor. Be careful not to bend or kink
control cable(s).
IMPORT ANT :
in the engine. Be certain to service engine with gasoline
and oil as instructed in the separate engine manual
before operating your machine.
This unit is shipped without gasoline or oil
Before Assembly
WARNING: Disconnect the spark plug wire
and ground it against the engine to prevent
unintended starting.
Attaching Tailpiece And Depth Stake
Remove the two self-tapping screws on the frame.
Slide the tailpiece into the frame with the lower hole in
the tailpiece toward the front. Secure with screws just
removed. See Figu re 1.
Tailpiece
Depth
Stake
Attaching Handle Assembly
•Remove the hex bolt and cupped washer from the
top right sid e of the fra me halves . Hold the ca ble
guide bracket on the left side of the frame as it will
fall when the bolt is removed. See Figure 2.
Handle
Hand Knob
Handle
Hex Bolt &
Cupped Washer
Frame Half
•Insert the handle assembly between the two frame
halves. Insert the hex bolt just removed through the
frame halves, handle assembly, and into the cable
guide bracket (notch in cable guide bracket goes
over the flange on the frame). Tighten securely.
•Loosen the hand knob which secures the handle
brace to the handle assembly. (Standard Briggs &
Stratton & Tecumseh Engines).
•Remove handle crank from the handle brace.
(Briggs & Stratton Intek Only).
•Remove the hex lock nut from on top of the engine,
just to the left of the spark plug. Attach the curved
end of the handle brace to the top of the engine,
using hex lock nut ju st removed. Tig hten securely .
See Figure 3.(Standard Briggs & Stratton &
Tecumseh engines).
•Insert handle crank through the welded bracket on
the handle and into the threaded u-nut on the end
of the handle brace. (Briggs & Stratton Intek
only).
•Select one of the three handle height positions
(three notches in welded bracket), and tighten the
hand knob to secure the handle in desired position.
Make certain carriage bolt is seated securely into
one of the three positions provided.
Brace
Spark
Plug
Figure 2
Hex Lock Nut
Shoulder Bolt
Self-Tapping
Screws
Figure 1
5
Welded
Bracket
Handle
Crank
Handle
Hex Bolt &
Cupped Washer
Briggs and Stratton Intek Engine
Hex Lock Nut
Handle Brace
Handle
Brace
Fuel Shut-Off
Valve
Frame Half
Spark
Plug
•Loosen the hex nut on the threaded rod near the
end of the cable, and move it up the rod as far as it
will go.
•Unthread the rod from the rest of the cable. Hook
the “Z” end of the rod into the bracket underneath
the handle assembly from the right hand side. See
Figure 4.
•Thread the rod back into the cable until the cable is
straight. Do not tighten it enough to put any tension
on the spring.
•Thread the hex nut down against the end of cable.
Use a pair of pliers and a wrench to lock the nut
against th e rod.
NOTE: Do not overtighten control cable. Too much
tension may cause it to break when engaged.
Threaded Rod
“Z” End
Hooked In
Bracket
Briggs and Stratton Standard Engine
Spark
Plug
Handle
Brace
Hex Lock
Nut
Tecumseh Engine
Figure 3
Attaching Clutch Control Cable(s)
Forward Cable
Attach the end of the forward cable to the bracket
underneath the handle assembly as follows. (On model
390, the forward clutch cable is the cable which is
attached closer to the rear of the tiller).
Hex Nut
Cable
Models 340 thru 345
Figure 4
Reverse Cable (Model 390 Only)
The reverse clutch cable is the cable which is attached
closer to the front of the tiller. Attach the end of the
reverse cable to the reverse tine drive clutch lever,
above the handle assembly, in the same manner as
you attached the forward cable. See Figure 5.
Z End Hooked
in Bracket
Threaded
Rod
Hex Nut
Reverse Tine
Engagement Lever
Hex Nut
Figure 5
Forward Tine
Engagement Handle
Z End Hooked
in Bracket
Threaded
Rod
6
Final Clutch Adjustme nt
To check the clutch cable adjustment, proceed as
follows.
•Disconnect the spark plug wire and move it away
from the spark plug to prevent accidental starting.
•Engage and release the tine engagement handle,
then the reverse tine engagement lever (model 390
only). If an excessive noise is heard when releasing
either the tine drive clutch handle or lever, the cable
may be too loose. Adjust either the forward or
reverse clutch cable by loosening the hex nut,
threading the rod into the cable one or two turns,
then retightening the nut.
•With tine engagement handle in neutral (released)
as shown in Figure 6, pull the starter rope several
times. The tines should not turn. If they turn
forward, loosen the hex nut on the forward cable
(underneath the handle assembly). If they turn
SECTION 3: KNOW YOUR TILLER
WARNING: Read, understand, and follow
all instructions and warnings on the
machine and in this manual before
operating.
toward the rear (model 390 only), loosen the hex
nut on the reverse cable (above the handle
assembly). Unthread the rod from the cable 2 or 3
turns. Retighten the hex nut, and check again for
correct adjustment. See Figure 6.
Forward Tine
Engagement Lever
Reverse Tine
Engagement Lever
Models 340 thru 345
Model 390
Figure 6
Run
Choke
Stop
Fast
Throttle Control
The throttle control lever is located on the engine. It
controls the engine speed and stops the engine. See
Figure 7.
Choke Lever (Model 340/390)
The choke lever is located above the throttle control. It
is used to enrich the fuel mixture when starting a cold
engine. See Figure 7.
Primer Button (Model 345)
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. See Figure 7
Forward Tine Enga gement Handle
The forward tine engagement handle is located
beneath the tiller handle. Squeezing the handle up
against the tiller handle engages the tines. Release the
handle to stop the tines. See Figure 8
Reverse Tine Drive Clutch Lever
(Model 390 Only)
The reverse tine drive clutch lever is located on top of
the handle panel. Pull the lever to the rear to move the
tines in reverse. Release the lever to stop the reverse
tine drive. See Figure 8
NOTE: Never engage both the forward and reverse tine
drives at the same time. Engaging both forward and
reverse tine drives at the same ti me co uld da mag e the
belt drives and cause the engine to stall.
Briggs and Stratton Intek
Choke
Throttle Control
Briggs and Stratton Standard
Primer
Fast
Stop
Tecumseh
Figure 7
Air
Cleaner
Throttle
Control
7
Depth Stake
The depth stake controls the tilling depth. Refer to
OPERATING YOUR TILL ER in Sectio n 4.
Handle
Crank
Tines
Model 390 Shown
Tines And End Caps
The tilling tines and end caps (are used to cultivate,
furrow, and preapre yoru garden for seeding. The end
caps (Model 390 only) are used to avoid tilled soil from
overflowi ng onto un wante d areas.
Reverse Tine
Engagement
Handle
Forward Tine
Engagement
Handle
Depth
Stake
End Cap
Figure 8
SECTION 4: OPERATING YOUR TILLER
Gas and Oil Fill up
Service the engine with gasoline and oil as instructed in
the separate engine manual packed with your tiller.
Read ins tructi ons caref ully .
Starting Engine
WARNING: Be sure no one is standing in
front of the tiller while the engine is
running or being started.
Models 340, 342, & 390
•Attach spark plug wire to spark plug. Make certain
the metal loop on the end of the spark plug wire
(inside the boot) is fastened securely over the metal
tip on th e spar k plug .
•Make certain all controls are in the neutral position
(released). See Figure 6.
•Place the throttle control lever in FAST position.
See Figure 7.
•Move chok e leve r to C HOKE p ositi on. (A war m
engine requires little or no choke.)
•Grasp starter handle and pull rope out slowly until
engine reaches start of compression cycle (rope
will pull slightly harder at this point). Let the rope
rewind slowly.
•Pull rope with a rapid, continuous, full arm stroke.
Keep a firm grip on starter handle. Let rope rewind
slowly. Do not let starter handle snap back against
starter.
•Repeat preceding instructions until engine starts.
When engine starts, move choke lever on engine
halfway between CHOKE and RUN.
•Move throttle control to IDLE position for a few
minutes warm-up. Move choke lever to RUN
position as engine warms up.
Models 343 & 345
•Attach spark plug wire to spark plug. Make certain
the metal loop on the end of the spark plug wire
(inside the boot) is fastened securely over the metal
tip on th e spar k plug .
•Make certain all controls are in the neutral position
(released). See Figure 8.
•Place the engine speed control in the START
position.
•Push primer two (2) or three (3) times. Wait about
two (2) seconds between each push.
NOTE: Primer may be needed to restart a warm engine
after a short shutdown.
8
•Stand at side of tiller. Grasp the starter handle and
pull out slowly, until it pulls slightly harder. Let rope
rewind slowly.
•Pull rope with a rapid full arm stroke. Do not allow
handle to snap back. Allow it to rewind slowly while
keeping a firm hold on the starter handle.
NOTE: If engine fail s to start afte r thre e (3) p ulls , pu sh
primer two (2) times and pull starter rope again.
•Repeat previous steps until engine starts. Refer to
engine manual for additional engine information.
To Stop Engine
•Move throttle control lever to STOP or OFF
position.
•Disconnect spark plug wire from spark plug and
ground against the engine to prevent accidental
starting while equipment is unattended.
Removing End Caps (Model 390 only)
The end cap, which are used to avoid tilled soil from
overflowing onto unwanted areas, are removable from
the outer axle. Remove the hairpin clip and clevis pin
that is securing each end cap and slide end cap off the
axle. See Figure 10.
End Cap
Using Y our Tiller
Your tiller is a precision built machine designed for seed
bed preparation, cultivating, furrowing and mulching. It
is engineered to minimize the hardest work in the
vegetable or flower garden, to till the soil for planting
and cultivating, and to perform many other useful labor
saving tasks in the garden.
With the proper amount of care and maintenance, this
machine will provide the owner with many years of
service.
Wheel Position
The tiller is shipped with the wheels adjusted such that
the unit sits level. While tilling, as the tines enter the
ground and the front of the tiller lowers, the wheels
must be raised to level the unit, which is essential for
proper engine operation. This adjustment is made by
removing the clevis pin and hairpin clip from wheel
yoke, rai sing the w heel s to t he de sire d hei ght, a nd
replacing the clevis pin and hairpin clip. See Figure 9.
Depth Stake
Clevis Pin
Hairpin Clip
Figure 10
Controlling Speed And Tilling Depth
Wheel Yoke Adjustment
Place wheel yoke so that the wheels are forward
(nearest point between wheels and tines) for shallow
tilling, cultivating and transport. The forward speed will
increase. Turn yoke around (farthest point between
wheels and tines) for deep tilling. Forward speed will
decrease. See Figure 11.
Wheel Yoke
Hairpin Clips
& Clevis Pins
Figure 9
Position Wheel Yoke
For Shallow Tilling
Figure 11
Position Wheel Yoke
For Deep Tilling
Depth Stake Adjustment
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 9.
.
9
Transport
Position
Depth Stake
Shallow Tilling
Wheel Setting For
Deep Tilling
Deep Tilling
Figure 12
By increasing the depth of the depth stake, the forward
speed of the machine is reduced and the working depth
is increased. When the depth stake is raised, the
working depth of the machine is reduced and the
forward speed is increased. The working depth of the
machine may be predetermined by setting the depth
stake and wheels so that the wheels are about four
inches from the ground when the tines and depth stake
are resting on the ground. This setting will permit a
working depth of about four inches. When presetting
the working depth, the handles should be adjusted so
the hand grips are a little above waist. The tiller will be
lower when the tines and depth stake penetrate the
ground. See Figure 12.
Figure 13
When tilling, leave approximately 8 inches of untilled
soil betw een the fi rst and second ti llin g paths, then
make the third path between the first and second. 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. In
the latter case, the depth stake should be lowered
before each succeeding pass over the garden. 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. See Figure 13.
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.
Throttle Control
The throttle control lever adjusts the engine speed and
stops the engine. With the throttle control lever pushed
completel y forw ard, t he ca rburet or i s in ST ART
position. Pulling the throttle control back slightly adjusts
the engine speed to FAST. Pulling the throttle back
further reduces the engine speed to SLOW. Pull the
throttle completely back to stop the engine.
Use maximum engine speed for deep tilling. Move the
throttle control to SLOW when transporting the tiller.
Transporting The Tiller
To transport the tiller to or from the garden, pivot the
depth stake forward, out of the way. See Figure 12.
With the throttle control in SLOW position, the unit will
walk freely on top of the lawn. If the operator does not
allow the tiller to move freely, the unit will start to till the
surface.
Cultivating
For cultivating, a two to three inch depth is desirable.
Setting the wheels and depth stake so that the wheels
are about two inches above the ground while the tiller is
resting on the tines and depth stake will allow the
machine to work at cultivating depth. The throttle
should be set to control forward movement to a slow
walking speed. With the outer tines installed, the
working wid th of the machine is 22 or 24 inches . For
cultivation, this may be reduced to 13 inches by
removing the outer tines. Refer to the Adjustment
Section. Wh en laying ou t plant rows , be sure to al low
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. Se e Figur e 14.
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 us ed fo r mi xing c ompos t in th e 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
10
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 in ches of soil causes the so il to h old
moisture longer and allows proper aeration of the plant
root system. This also retards the growth of weeds.
SECTION 5: MAKING ADJUSTMENTS
WARNING: Disconnect the spark plug wire
and ground it against the engine before
performing any adjustments.
Engine Adjustment
Refer to the separate engine manual for engine
adjustment instructions.
Wheel Adjustments
To adjust the wheel yoke and wheel position, refer to
the Operating Section.
Figure 14
22”
Clutch Control Adjustments
To adjust the clutch controls, refer to the Final
Adjustment sec tion o f asse mbly i nstructio ns.
Depth Stake Adjustment
To adjust the depth stake, refer to the Operating
Section.
Tine Width Adjustment
The tilling width of the unit is 22 inches. Tilling width can
be increased to 24 inches by removing the clevis pins
and hairpin clips, sliding the outer tines out one inch,
and securing in this position with the clevis pins and
hairpin clips. For cultivation, reduce the tine width to 13
inches by removing the outer tines completely.
See Figure 15.
SECTION 6: MAINTAINING YOUR TILLER
WARNING: Disconnect the spark plug wire
and ground it against the engine before
performing any repairs or maintenance.
Engine
Refer to the separate engine manual for engine
maintenance instructions.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and follow
instructions ca refully .
Service air cleaner every ten hours under normal
conditions. Clean every hour under extremely dusty
11
24”
13”
Figure 15
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.
Hex Washer
Screw
Lock Nut &
Flat Washer
Belt Cover
IMPORT ANT :
completely as sembled .
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.
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.
Never run your engine without air cleaner
Lubrication
Pivot Points
Remove the belt cover and lubricate all moving parts
and pivot points at least once a season using SAE 30
engine oil.
Chain Drive
The chain case is pre-lubricated and sealed at the
factory.
Figure 16
•Lift the belt off the transmission pulley.
•Remove the hex nut which secures t he reve rse
idler pulley to the idler bracket. Slide idler pulley out
and remove the belt. See Figure 17.
Reverse Idler
Pulley
Hex Nut
Forward
Belt
Cleaning Tine Ar ea
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.
IMPORT ANT :
your tiller. Water can penetrate tight areas of the tiller
and its chain case and cause serious damage to the
unit.
Never use a "pressure washer” to clean
Belt Replacement
Your tiller has been engineered with belts made of
special material (Kevlar Tensile). They should not be
replaced with an off-the-shelf belt. If belt replacement is
required, order belt or belts by part number from your
nearest aut horized service de aler. Se e parts list.
Reverse Drive Belt (Model 390 Only)
•Disconnect and ground the spark plug wire against
the engine. Remove the belt cover from the left side
of the tiller as follows.
•Remove two self-tapping screws and flat washers
from the front of belt cover. See Figure 16.
•Remove the he x stop nut and flat was her from th e
side of the belt cover. Remove belt cover.
Engine Pulley
Model 390 Show n
•Reassemble the new belt, following instructions in
reverse order. Make certain the reverse drive belt is
assembled with the wide side of the belt against the
transmission and engine pulleys.
Be certain to adjust the clutch control as instructed
in the final clutch adjustment section of assembly
instructions.
Reverse Belt
Transmission
Pulley
Figure 17
Forward Drive Belt
•Models 340 thru 345: Remove the belt cover by
following steps 1 thru 3 of the previous section.
Model 390: Remove the reverse drive belt as
instructe d in the prev ious secti on.
•Remove the belt keeper fro m the idler pu lley by
removing the idler pulley nut.
•Lift belt off the idler pulley and transmission pulley.
See Figure 18.
•Using a 9/16" wrench, remove bolt from engine
pulley.
•Push reverse idler pulley bracket forward, and
remove engine pulley and belt. See Figure 18.
•Reassemble the new belt, following instructions in
reverse order. Make certain the forward drive belt is
12
assembled with the wi de side of the belt aw ay from
the transmission and engine pulleys.
Reverse Idler
Pulley
Engine
Pulley
Forward
Belt
Transmission
Pulley
Idler Pulley Nut
Figure 18
•Be certain to adjust the clutch control as instructed
in the final clutch adjustment section of assembly
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 engine and the entire tiller
thoroughly. Lubricate the tiller as described in the
lubrication instructions.
•We do not r ecom mend t he us e of pres sure
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 sto rage shed, care shou ld be
taken to rustproof the equipment. Using a light oil or
silicone, coat the equipment and especially any
springs, bearings, and cables.
13
SECTION 7: TROUBLE SHOOTING GUIDE
T roublePossible Cause(s)Corrective Action
Engine fails to
start
Engine runs
erratic
Engine overheats
Tines do not
engage
Fuel tank empty, or stale fuel.
Throttle control lever not in correct
starting position (if so equipped).
Blocked fuel line.
Dirty aircleaner.
Choke not in ON position.
Spark plug wire disconnected.
Faulty spark plug.
Engine flooded.
Unit running on CHOKE.
Spark plug wire loose.
Blocked fuel line or stale fuel.
V ent in gas cap plu gge d.
Water or dirt in fuel system.
Dirty air cleaner.
Carburetor out of adjustment.
Engine oil level low.
Dirty air cleaner.
Air flow restricted.
Carburetor not adjusted properly.
Foreign object lodged in tines.
Tine clevis pin(s) missing.
Pulley and idler not in correct
adjustment.
Control cable not adjusted properly.
Belt worn and/or stretched.
Fill tank with clean, fresh gasoline. Fuel will not last over
thirty days unless a fuel stabilizer is used.
Move throttle lever to start position.
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.
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.
Fill crankcase with proper oil.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.
Adjust carburetor as instructed in separate engine manual.
Dislodge foreign object.
Replace tine clevis pin(s).
Take unit to authorized service dealer.
Adjust control cable (see assembly instructions).
Replace belt.
† Briggs & Stratton Intek Engine
†† Standard Briggs & Stratton and Tec. Engine
17
Model 340 Thru 345
27
13
14
12
15
28
31
41
29
23
10
40
33
30
42
39
38
37
32
36
34
22
35
9
8
6
26
16
21
19
18
25
24
19
7
4
5
3
20
11
1
2
18
Model 340 Thru 345
Ref.
No.
1.712-0392Hex L-Stop nut 1/4-28
2.736-3020Flat Wash. .266” I.D. x .625” O.D.
3.710-0599Hex Washer Screw 1/4-20 x .5”
4.711-0920Belt Cover Bolt
5.712-3004AHex Flange Top L-Nut 5/16-18
6.710-0723Hex Hd. Scr. 3/8-16 x 1.25” Lg.
7.756-0313Fl-Idler 2.12” O.D.
8.786-0149Idler Belt Keeper
9.786-0144Idler Bracket
10.712-0266Hex Cent. Jam Nut 3/8-16 Thd.
11.786-0056Belt Cover
12.710-0599Hex Washer Screw 1/4-20 x .5”
13.786-0035ATine Shield
14.710-3008Hex Hd. Cap Scr. 5/16-18 x .75” Lg
15.712-3004AHex Flange Top L-Nut 5/16-18
16.686-0091Chain Case Assembly Complete
18.714-0149BInternal Cotter Pin
19.711-0415Clevis Pin
20.642-0005Outer Tine Assembly L.H.
21.642-0003Inner Tine Assembly L.H.
Part No.Part Description
642-0004Outer Tine Assembly R.H.
642-0002Inner Tine Assembly R.H.
Ref.
No.
22.746-0918Forward Clutch Cable
23.786-0053Tine Shield Bracket
24.736-0171L-Wash. 7/16” I.D.
25.712-0240Hex Nut 7/16-20 Thd.
26.710-0502AHex Washer Screw 3/8-16 x 1.25”
27.786-0145AEngine Plate
28.786-0039BBracket Cover
29.736-0119Lock Washer 5/16
30.710-0107Hex Bolt 5/16-24 x .5”
31.756-0971Inner Engine Pulley Half
32.756-0972Outer Engine Pulley Half
33.736-0258Flat Washer .385 ID x 1.0 OD
34.736-0169Lock Washer 3/8
35.710-0191Hex Bolt 3/8-24 x 1.25”
36.736-0112Bell-Wash. .525” I.D. x 1.5” O.D.
37.712-3029Hex Jam Nut 1/2-20 Thd. (Gr. 5)
38.736-0312Retainer Washer Bearin g
39.756-0585Fl-Pulley 6” Dia.
40.754-0428V-Belt (Forward)
41.750-0892Spacer .64” Dia. x 2.4” Lg.
42.748-0350Pulley Mounting Adapter
Part No.Part Description
19
Model 390
3
1
2
5
20
37
7
2
17
35
36
4
8
21
29
19
30
6
10
9
11
12
16
31
14
18
32
13
15
49
26
2728
Standard Briggs & Stratton
Tecumseh Engines
51
52
53
22
23
50
54
55
37
42
30
38
30
43
44
40
34
41
39
33
20
46
25
24
45
47
48
Model 390
REF.
NO.
10.720-0269Grip-Clutch
11.710-0641Hex Bolt 1/4-20 x 2.25” Lg. Gr .5
12.731-1645AClutch Handle Holder
13.736-0140Flat Washer .385” I.D. x .62” O.D.
14.686-0014AReverse Handle Ass’y
15.736-0264Flat Washer .344” I.D. x .62” O.D.
16.649-0039Handle Assembly C omp. †
17.647-0042Adjustment Crank †
18.726-0211U Nut 5/16 -18 †
19.749-1101Handle Brace †
20.736-0921Lock W as her 1/2 †
21.710-3194Hex Bolt 1/2-20 Gr. 5 †
22.786-0005Depth Bar
23.714-0149BCotter Pin
24.712-3004AHex Flange L-Nut 5/16-18 Thd. Gr.5
25.786-0003Tail Piece Bracket (L.H.)
26.786-0004Tail Piece Bracket (R.H.)
27.711-0415Clevis Pin
28.710-0805Hex Bolt 5/16-18 x 1.5” Lg.
PART NO.DESCRIPTION
1.712-0442Acorn Lock Nut 1/4-20
2.736-3020Flat Washer .271” I.D. x .630” O.D.
3.720-0270AReverse Handle Grip
4.731-1600Handle Cover w/o throttle
5.710-0779ATruss Mach. Scr. #10 x 1/2” Lg.
6.720-0274Grip-Handle
7.712-0287Hex Nut 1/4-20 Gr.2
8.726-0135Cap Speed Nut
9.686-0083Clutch Handle Assembly
649-0022BHandle Assembly Comp. ††
REF.
NO.
29.710-0189Hex Bolt 5/16-18 x 3” Lg.
30.736-0242Wash. Bell. .340” I.D. x .872” O.D.
31.711-1036Spec. Hex Nut
32.736-0119L-Was h. 5/16 ” I.D.
33.710-3008Hex Bolt 5/16-18 Gr. 5
34.786-0129Cable Guide Bracket
35.710-0604AHex Washer Screw 5/16-18 x .62” Lg.
36.710-0602Hex Wash. Hd. TT-Tap Scr.
37.738-0934Shdl. Bolt 5/16-18
38.786-0138AFrame (R.H.)
39.786-0139AFrame (L.H.)
40.736-0171Lock Washer 7/16
41.712-0240Jam Nut 7/16-20 Gr. 2
42.710-0176Hex Bolt 5/16-18 x 2.75 ” Lg.
43.712-0429Hex Nylon Nut 5/16-18 Thd.
44.711-0415Clevis Pin
45.714-0149BCotter Pin
46.686-0081AWheel Hanger Bracket Assembly
47.734-1566Wheel Ass’y 8” x 1.75”
48.738-0929Shoulder Screw .496 I.D. x 1.445 O.D.
49.750-0890Spacer
50.710-1236Carr. Bolt 5/16-18 x 1 ††
51.749-0915AEngine Tube Brace (Std. B&S)
52.712-3004AHex Flange L-Nut 5/16-18 Thd. ††
53.786-0159Engine Brkt. (Std. B&S)
54.736-0242Bell. Wash. .34” I.D. ††
55.720-0195Hand Knob††
PART NO.DESCRIPTION
749-1082Engine Tube Brace (Tec.)
† Briggs & Stratton Intek Engine
†† Standard Briggs & Stratton and Tec. Engine
21
Model 390
13
12
14
15
29
25
48
30
33
31
45
39
26
32
38
49
34
50
35
24
24
23
27
28
36
42
40
22
41
9
51
43
16
44
21
19
46
47
10
7
4
5
20
3
17
8
6
11
1
2
18
22
Model 390
REF.
NO.
10.712-0266Hex Cent. Jam Nut 3/8-16 Thd.
11.786-0057Belt Cover
12.710-0599Hex Wash. TT-Tap Scr. 1/4-20 x .5” Lg.
13.786-0043ATiner Shield
14.710-3008Hex Hd. Cap Scr. 5/16-18 x .75” Lg
15.712-3004AHex Flange Top L-Nut 5/16-18 (Gr. 5)
16.686-0091Chain Case Assembly Complete
17.686-0106Tine Disc Ends
18.714-0149BInternal Cotter Pin
19.711-0415Clevis Pin
20.642-0023Outer Tine Assembly L.H.
21.642-0003Inner Tine Assembly L.H.
22.746-0918Forward Clutch Cable
23.746-0953Revers e Clutc h Cable
24.756-0585Fl-Pulley 6” Dia.
PART NO.DESCRIPTION
1.712-0392Hex L-Stop nut 1/4-28
2.736-3020Flat Wash. .266” I.D. x .625” O.D.
3.710-0599Hex Washer TT-Tap Scr. 1/4-20 x .5”
4.711-0920Belt Cover Bolt
5.712-3004AHex Flange Top L-Nut 5/16-18 (Gr.5)
6.710-0723Hex Hd. Scr. 3/8-16 x 1.25” Lg. (Gr.5)
7.756-0313Fl-Idler 2.12” O.D.
8.786-0149Idler Belt Keeper
9.786-0144Idler Bracket
642-0024Outer Tine Assembly R.H.
642-0002Inner Tine Assembly R.H.
REF.
NO.
25.750-0892Spacer .64” Dia. x 2.4” Lg.
26.748-0350Pulley Mounting Adapter
27.736-0112Bell-Wash. .525” I.D. x 1.5” O.D.
28.712-3029Hex Jam Nut 1/2-20 Thd. (Gr. 5)
29.732-0697Return Spring
30.786-0040BReverse Bracket
31.736-0119Lock Washer 5/16
32.710-0107Hex Bolt 5/16-24 x .5”
33.756-0971Inner Engine Pulley Half
34.756-0600Outer Engine Pulley Half
35.736-0452Bell Washer .396” I.D. x 1/14” O.D.
36.710-0191Hex Bolt 3/8- 24 x 1.25”
38.686-0013Reverse Arm Assembly
39.712-0266Hex Cent. J am Nut 3/8-16 Thd.
40.710-0723Hex Cap Bolt 3/8-16 x 1.25” Lg. (Gr. 5)
41.756-0313Fl-Idler 2.12” O.D.
42.786-0041Keeper Plate
43.710-0502AHex L-Wash. TT-Tap 3/8-16 x 1.25”
44.786-0145AEngine Plate
45.786-0053Tine Shield Bracket
46.736-0171L-Was h. 7/16 ” I.D.
47.712-0240Hex Nut 7/16-20 Thd.
48.754-0428V-Belt (Forward)
49.754-0429V-Belt (Reverse)
50.738-0102Shld. Bolt
51.738-0930Shld. Bolt
PART NO.DESCRIPTION
23
MANUFACTURER’S LIMITED WARRANTY FOR:
The limited warran ty set fo rth below is given by MTD LLC wit h
respect to new merchandise purchased and used in the
United States, its possessions and territories.
MTD LLC warra nts this prod uct agai nst def ects fo r 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 warr anty shall only apply if th is pro duct h as bee n oper ated and maintained in accordance with the Operator’s Man-
ual furnished with the product, and has not been subject to
misuse, abuse, comm ercial 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 accessory or
attachment not approved by MTD LLC for use with the product(s) covered by this manual will void your warranty as to
any resulting damage.
Normal wear parts or components thereof are subject to separate terms as follows: All normal wea r parts or component
failures will be c o vered on the product for a period o f 90 days
regardless of cause. After 90 days, but within the two year
period, normal wear part failures will be covered ONLY IF
caused by defects in materials or workmanship of OTHER
component parts. Normal wear parts and components
include, but are not limited to: batteries, belts, blades, blade
adapters, gr ass b ags , rider dec k wheels , s eats , sn ow thro wer
skid shoes, shave plates, auger spiral rubber, tires.
HOW TO OBTAIN SERVICE: Warranty service is available,
WITH PROOF OF PURCHASE, through your local authorized service dealer. To l oc ate t he d eal er in your area, check
your Yellow Pages, or contact MTD LLC at P.O. Box 361131,
Cleveland, Ohio 44136-0019, 1-800-800-7310, 1-330-2204683 or log on to our Web site at www.mtdproducts.com.
This limited warranty does not provide coverage in the following cases:
a. The engine or component parts thereof. These items
carry a separate manufacturer’s warranty. Refer to the
applicable manufacturer’s warranty for terms and conditions.
b. Log splitter pumps, valves, and cylinders have a sepa-
rate one year warranty.
c. Routine maintenance items such as lubricants, filters,
blade sharpening, tune-ups, brake adjustments, clutch
adjustments, de ck adjustments , and normal deterioration
of the exterior finish due to use or exposure.
d.MTD LLC does not extend any warranty for products
sold or exported outside of the U nit ed State s , its possessions and territories, except those sold through MTD
LLC’s authorized channels of export distribution.
e.Parts that a re not genuine MTD parts are n ot covered by
this warranty.
f.Service completed by s omeone o ther than an authoriz ed
service dealer is not covered by this warranty.
g.Transportation charges and service calls are not
covered.
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, e xcept as mentioned above, given by any person or entity, including a
dealer or retailer, with respect to any product, shall bind
MTD LLC. D uring the pe riod 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
LLC 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 expense s to tem poraril y 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 y ou.
In no event shall recovery of a ny k ind be greater than the
amount of the purchase price of the pr oduct sold. Alteration
of safety features of the pr oduc t shall v oid t his warra nty.
You assume the risk and liability f o r loss , dam age , 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 warranty gives you specific legal rights, and you
may also have other ri ghts wh ich v ary fr om sta te to s tate.