Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OPERATOR’S MANUAL
Model 235, S235
Single-Stage Snow Thrower
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. 769-01801A
05/2006
PRINTED IN U.S.A.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
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1
Safety
Labels
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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
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attempting to operate
this machine. Failure
to comply with these
instructions may result
in personal injury. When
you see this symbol.
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HEED ITS WARNING!
Your Responsibility
Restrict the use of
this power machine to
persons who read,
understand and
follow the warnings
and instructions in this
manual and on the
machine.
3
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WARNING: Engine Exhaust, some of its constituents, and certain vehicle compo-
nents contain or emit chemicals known to State of California to cause cancer and
birth defects or other reproductive harm.
2
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.
Safe
Operation Failure to observe the following safety instructions could result in serious injury or death.
Training
Preparation
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.
1. Thoroughly inspect the area where the equipment is to be
used. Remove all doormats, newspapers, sleds, boards,
wires, and other foreign objects, which could be tripped over
or thrown by the auger/impeller.
Practices
2. Always wear safety glasses or eye shields during operation
and while performing an adjustment or repair to protect your
eyes. Thrown objects which ricochet can cause serious
injury to the eyes.
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 over should read and
understand the operation instructions and safety rules in
this manual and should be trained and supervised by a
parent.
3. Do not operate without wearing adequate winter outer
garments. Do not wear jewelry, long scarves, or other
loose clothing which could become entangled in moving
parts. Wear footwear which will improve footing on slippery
surfaces.
WARNING
4. Never allow adults to operate this machine without proper
instruction.
5. Thrown objects can cause serious personal injury. Plan
your snow-throwing pattern to avoid discharge of material
toward roads, bystanders, and the like.
6. 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.
4. Use a grounded three-wire extension cord and receptacle
for all units with electric start engines.
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
5. Adjust collector housing height to clear gravel or crushed
rock surfaces.
6. Disengage all control levers before starting the engine.
7. Never attempt to make any adjustments while engine is
running, except where specifically recommended in the
operator’s manual.
7. Exercise caution to avoid slipping or falling, especially
when operating in reverse.
8. Let engine and machine adjust to outdoor temperature
before starting to clear snow.
9. 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.
manual before at-
tempting to operate
this machine. Failure
to comply with these
instructions may result
in personal injury. When
you see this symbol.
a. Use only an approved gasoline container.
b. Extinguish all cigarettes, cigars, pipes and other sources
of ignition.
c. Never fuel machine indoors.
d. Never remove gas cap or add fuel while the engine is hot
or running.
HEED ITS WARNING!
e. Allow engine to cool at least two minutes before refuel-
ing.
Your Responsibility
Restrict the use
f. Never over fill fuel tank. Fill tank to no more than ½-inch
below bottom of filler neck to provide space for fuel
expansion.
of this power machine
to persons who read,
understand
g. Replace gasoline cap and tighten securely.
h. If gasoline is spilled, wipe it off the engine and equip-
ment. Move machine to another area. Wait five minutes
before starting the engine.
and follow the warnings
and instructions
in this manual
i. Never store the machine or fuel container inside where
there is an open flame, spark or pilot light (e.g. furnace,
water heater, space heater, clothes dryer etc.).
j. Allow machine to cool at least five minutes before
storing.
and on the machine.
4
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Operation
Maintenance & Storage
1. Do not put hands or feet near rotating parts, in the
auger/impeller housing or chute assembly. Contact with the
rotating parts can amputate hands and feet.
1. Never tamper with safety devices. Check their proper
operation regularly. Refer to the maintenance and adjust-
ment sections of this manual.
2
2. The auger/impeller control lever is a safety device. Never
bypass its operation. Doing so makes the machine unsafe
and may cause personal injury.
2. Before cleaning, repairing, or inspecting machine disen-
gage all control levers and stop the engine. Wait until the
auger/impeller come to a complete stop. Disconnect the
spark plug wire and ground against the engine to prevent
unintended starting.
3. The control levers must operate easily in both directions
and automatically return to the disengaged position when
released.
Safe
Operation
Practices
3. 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.
4. Do not change the engine governor setting or over-speed
the engine. The governor controls the maximum safe
operating speed of the engine.
4. Never operate with a missing or damaged chute assembly.
Keep all safety devices in place and working.
5. Never run an engine indoors or in a poorly ventilated area.
Engine exhaust contains carbon monoxide, an odorless and
deadly gas.
5. Snow thrower shave plates and skid shoes are subject to
wear and damage. For your safety protection, frequently
check all components and replace with original equipment
manufacturer’s (OEM) parts only. “Use of parts which do
not meet the original equipment specifications may lead to
improper performance and compromise safety!”
6. Check controls periodically to verify they engage and
disengage properly and adjust, if necessary. Refer to the
adjustment section in this operator’s manual for instructions.
7. Maintain or replace safety and instruction labels, as neces-
sary.
6. Do not operate machine while under the influence of alcohol
or drugs.
7. Muffler and engine become hot and can cause a burn. Do
not touch.
8. Exercise extreme caution when operating on or crossing
gravel surfaces. Stay alert for hidden hazards or traffic.
9. Exercise caution when changing direction and while operat-
ing on slopes.
WARNING
10. Plan your snow-throwing pattern to avoid discharge towards
windows, walls, cars etc. Thus, avoiding possible property
damage or personal injury caused by a ricochet.
11. Never direct discharge at children, bystanders, and pets or
allow anyone in front of the machine.
This symbol points
8. Observe proper disposal laws and regulations for gas, oil,
etc. to protect the environment.
out important safety
instructions, which if
not followed, could
9. Prior to storing, run machine a few minutes to clear snow
from machine and prevent freeze up of auger/impeller.
10. 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.
12. Do not overload machine capacity by attempting to clear
snow at too fast of a rate.
13. Never operate this machine without good visibility or light.
Always be sure of your footing and keep a firm hold on the
handles. Walk, never run.
endanger the personal
safety and/or property
of yourself and others.
Read and follow all
11. Always refer to the operator’s manual for proper instructions
on off-season storage.
14. Disengage power to the auger/impeller when transporting or
not in use.
Do not modify engine
15. Never operate machine at high transport speeds on slippery
surfaces. Look down and behind and use care when
backing up.
instructions in this man-
ual before attempting to
operate this machine.
Failure to comply with
these instructions may
result in personal injury.
When you see this
To avoid serious injury or death, do not modify engine in any
way.Tampering with the governor setting can lead to a runaway
engine and cause it to operate at unsafe speeds. Never tamper
with factory setting of engine governor.
16. If the machine should start to vibrate abnormally, 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.
Notice regarding Emissions
Engines which are certified to comply with California and federal
EPA emission regulations for SORE (Small Off Road Equipment)
are certified to operate on regular unleaded gasoline, and may
include the following emission control systems: Engine Modifica-
tion (EM) and Three Way Catalyst (TWC) if so equipped.
17. Disengage all control levers and stop engine before you
leave the operating position (behind the handles). Wait
until the auger/impeller comes to a complete stop before
unclogging the chute assembly, making any adjustments, or
inspections.
symbol.
HEED IT’S WARNING!
Your Responsibility
18. Never put your hand in the discharge or collector openings.
Always use the clean-out tool provided to unclog the dis-
charge opening. Do not unclog chute assembly while engine
is running. Shut off engine and remain behind handles until
all moving parts have stopped before unclogging.
19. Use only attachments and accessories approved by the
manufacturer (e.g. wheel weights, tire chains, cabs etc.).
20. 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.
Your Responsibility
Restrict the use
Restrict the use of this power machine to persons who read, un-
derstand and follow the warnings and instructions in this manual
and on the machine.
of this power machine
to persons who read,
understand
and follow the warnings
and instructions
in this manual
and on the machine.
5
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NOTE: This Operator’s Manual covers several models.
Snow thrower features vary by model. Not all features
discussed in this manual are applicable to all snow
thrower models.
1
3
NOTE: All references to left or right side of the snow
thrower is from the operating position only
Setup And
Adjustment
Contents of Carton
Carton contents are listed below with part numbers in
parentheses.
1. Two Ignition Keys (725-0201)
2
2. 2.6 oz Bottle of 2 Cycle Oil (737-04037)
3. Extension Cord (if so equipped) (629-0236)
WARNING: Disconnect the spark plug
wire and ground it against the engine to
prevent unintended starting.
Figure 3-1
WARNING
Positioning the Upper
Disconnect the spark
plug wire and ground
it against the engine
to prevent unintended
starting.
Handle
2
Remove packing material, if present.
1. Making sure not to pinch the cable in the process,
pivot the upper handle into the operating position as
illustrated in Figure 3-1 until it clicks into place.
2. Tighten the wing knobs to secure the handle in place
as in Figure 3-1.
3
Assembling the
Chute assembly
1
NOTE:
For shipping reasons, the snow thrower has been
packaged with the upper chute pivoted all the way down.
To pivot it upward, proceed as follows:
This Operator’s Manual
covers several models.
Snow thrower features
vary by model. Not
all features discussed
in this manual are
Figure 2
1. Turn the chute until the chute opening is facing
straight ahead. Remove the star knob and carriage
bolt from the lower chute. See Figure 3-2.
2. Pivot the upper chute upward over the lip on the lower
chute so that there is NO gap between the upper
chute and the lower chute.
Chute Handle
applicable to all snow
thrower models.
3. Resecure with the hardware just removed. If installed
correctly, your snow thrower should look like Figure
3-3.
NOTE:
All references to left
or right side of the
snow thrower is
from the operating
position only.
IMPORTANT: Do not use the chute handle to lift the
snow thrower.
IMPORTANT:
Do not use the
chute handle to lift
the snow thrower.
Figure 3
6
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Auger Control
4
Know
Your Snow
Thrower
Electric Starter Button
Key
Starter Handle
Fuel Cap
Primer
Chute Assembly
Spark Plug Access
Chute Handle
IMPORTANT:
This unit runs on a
mixture of fuel
Choke Lever
and oil. Do NOT
operate the snow
thrower without first
reading the Tecumseh
engine operator’s
Shave Plate
Auger
manual for instructions
regarding proper fuel
and engine oil mixture.
Figure 4-4
Auger
Choke Lever
When engaged, the augers rotation draws snow into
the auger housing and throws it out the chute assembly.
Rubber paddles on the augers also aid in propelling the
unit as they come in contact with the pavement.
CHOKE
OFF
ON
NOTE:
This unit may
Activating choke control closes the choke plate on
carburetor and aids in starting engine. Refer to the engine
manual packed with unit for more detailed instructions.
Auger Control
include a fuel plug,
which is only used
during assembly to
keep dirt and debris
out of fuel tank.
Discard the fuel plug
before filling the
fuel tank.
Located on the upper handle, the auger control is used
to engage and disengage drive to the auger. Squeeze
the control against the upper handle to engage auger;
release it to disengage.
Primer
PRIMER
Depressing primer forces fuel directly into
engine’s carburetor to aid in cold-weather
starting. Refer to engine manual packed with
Chute Assembly / Chute Handle
Rotate the chute assembly to the left or right using chute
handle. Pitch of the chute assembly controls angle at
which the snow is thrown. Loosen wing knob on side
of the chute assembly before pivoting chute assembly
upward or downward. Retighten the knob once desired
position has been achieved.
PUSH FOR A
unit for more detailed instructions.
COLD ENGINE
Ignition Key
Ignition key must be present, inserted in
key switch, and in the “ON” position for
engine to start.
OFF
Stop
ON
Run
IGNITION
Recoil Starter
The starter handle is used to manually start the engine.
Shave Plate
The shave plate maintains contact with pavement as
the snow thrower is propelled, allowing snow close to
pavement’s surface to be discharged.
Electric Starter Button (If so equipped)
Pressing the electric starter button engages the
engine’s electric starter when plugged into a 120V
power source
Fuel Cap
Remove gas cap to add fuel. This unit runs on a mixture
of fuel and oil. Do NOT operate the snow thrower without
first reading the Tecumseh engines operator’s manual for
instructions regarding proper fuel and engine oil.
Electric Starter Plug (If so equipped)
Requires use of a two-prong outdoor extension cord
(packed with the snow thrower) and a 120V power
source/wall outlet.
Spark Plug Cover
Remove spark plug cover to access spark plug.
NOTE: This unit may include a fuel plug, which is only
used during assembly to keep dirt and debris out of fuel
tank. Discard the fuel plug before filling the fuel tank.
7
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Electric
Starter
Button
(if equipped)
5
Operation
Starter Handle
Primer
Key
Spark Plug Access
Fuel Cap
Chute Assembly
Chute Knob
Choke Lever
WARNING
Read, understand,
and follow all
Figure 5-1
instructions and
warnings on the
machine and in
this manual before
operating.
Before Starting
To Start Engine
IMPORTANT: For complete and detailed engine starting,
stopping and storing instructions, it is recommended that
you read the engine manual also included with this unit.
WARNING: Before starting the
engine, read, understand, and follow
all instructions and warnings on the
machine and in this manual.
Use extreme care
when handling
1. The spark plug wire was disconnected for safety.
Attach spark plug wire to spark plug before starting.
gasoline. Gasoline is
extremely flammable
and the vapors are
explosive. Never fuel
the machine indoors
or while the engine
is hot or running.
Extinguish cigarettes,
cigars, pipes and
other sources of
ignition.
Fuel And Oil Mixture
2. To avoid carbon monoxide poisoning, make sure
engine is outdoors in a well-ventilated area.
Your snow thrower is equipped with a two-cycle engine
that requires a mixture of gasoline and two cycle oil at a
ratio of 50:1. Refer to the Tecumseh engine operator’s
manual for detailed instructions regarding the mixture of
oil and gasoline for your snow thrower’s engine.
3. Insert ignition key into slot. Turn key to ON position.
4. Now follow the instructions below as it pertains to your
unit. See Figure 5 for location of controls.
Electric Starter(if equipped)
IMPORTANT: Do NOT operate the snow thrower
without the fuel cap securely in place on the fuel tank.
WARNING: The electric starter must
be used with a properly grounded
three-prong receptacle at all times to
avoid the possibility of electric shock.
Follow all instructions carefully prior to
operating the electric starter.
Fuel Fill-Up
1. Check fuel level and add if necessary. Follow related
instructions in the separate engine manual packed
with your snow thrower .
The electric starter
must be used with a
properly grounded
three-prong
WARNING: Use extreme care when
handling fuel. Fuel is extremely flam-
mable and the vapors are explosive.
Never fuel machine indoors or while
the engine is hot or running. Extin-
guish cigarettes, cigars, pipes and
other sources of ignition.
1. The electric starter is equipped with a grounded three-
wire power cord and plug, and is designed to operate
on 120 volt AC household current.
receptacle at all
times to avoid the
possibility of electric
shock. Follow all
instructions carefully
prior to operating the
electric starter.
2. Determine that your house wiring is a three-wire
grounded system. Ask a licensed electrician if you are
not certain.
3. If your home wiring system is not a three-wire
grounded system, do not use this electric starter
under any conditions.
8
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4. If your home electrical system is grounded, but
To help prevent possible freeze-up of starter,
proceed as follows:
be installed by a licensed electrician before using the 1. Run engine for a few minutes before stopping to help
a three-hole receptacle is not available, one should
electric starter.
dry off any moisture on the engine.
5
5. If you have a grounded three-prong receptacle,
proceed as follows.
2. Wipe all snow and moisture from the carburetor
cover in the area of the control levers. Also, move
control levers back and forth several times. Leave
choke control in the FULL choke position.
6. Move Choke Control to the “Full” position.
Operation
7. Push Primer three (3) times, making sure to cover
vent hole when pushing.
3. Remove ignition key and disconnect spark plug wire
to prevent accidental starting.
8. Connect power cord to switch box on dash panel.
Plug the other end of power cord into a three-prong
120-volt, grounded, AC receptacle.
Operating the Snow Thrower
The pitch of the chute assembly controls the angle at
which the snow is thrown.
9. Push starter button to crank engine.
1. Loosen the chute knob found on the left side of the
chute assembly and pivot the upper chute upward or
downward to the desired pitch. Retighten the chute
knob before operating the snow thrower.
10.When engine starts, release starter button, and move
choke gradually to 1/2 Choke until the engine runs
smoothly. Next move Choke to OFF. If engine falters,
move choke immediately to FULL and then gradually
to 1/2 then to OFF.
WARNING
Muffler, engine and
surrounding areas
become hot and
can cause a burn.
Do not touch.
2. Position the chute assembly opening by using the
Chute Handle to throw the snow in the desired
direction. See inset Figure 5-1.
11. Disconnect the power cord. Always unplug from the
outlet first, and then from the snow thrower.
Clearing Snow
WARNING: Never operate the snow
thrower with bystanders in front of or
near the chute assembly opening.
Recoil Starter
1. Move choke lever to FULL choke position (cold engine
start).
Never operate the
snow thrower with
bystanders in front
of or near the chute
assembly opening.
2. If engine is warm, place choke in OFF position instead
of FULL.
1. Engage the auger by squeezing the auger control
against the upper handle. See Figure 5-2.
3. Push Primer three (3) times, making sure to cover
vent hole when pushing.
2. Lift up slightly on the handle to allow the rubber
paddles on the auger
to contact the pave-
4. If engine is warm, push primer button only once.
NOTE: Always cover vent hole in primer button when
pushing. Additional priming may be necessary for first
start if temperature is below 15 degrees Fahrenheit.
ment and propel the
snow thrower forward.
Pushing downward
on the handle will
5. Grasp starter handle and pull rope out slowly, until it
pulls slightly harder. Let rope rewind slowly.
raise the augers off
the ground and stop
forward motion.
6. 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.
Figure 5-2
NOTE:
3. Discharge snow downwind whenever possible.
Slightly overlap each previously cleared path.
Excessive upward
pressure on the
handle will result in
premature wear
on the rubber
7. As engine warms up and begins to operate evenly,
rotate choke lever slowly to the 1/2 Choke position.
When the engine begins to run smoothly, move the
choke to the OFF position. If engine falters, return
to FULL choke, then slowly move to 1/2 then OFF
position.
NOTE: Excessive upward pressure on the handle will
result in premature wear on the rubber auger blades
which would not be covered by warranty.
Operating Tips
1. Run the engine for a few minutes before stopping to
help dry any moisture on the engine.
auger blades which
would not be covered
by warranty.
To Stop Engine
1. To stop engine, turn ignition key counter-clockwise.
Disconnect the spark plug wire from the spark plug
to prevent accidental starting while equipment is
unattended.
2. Clean the snow thrower thoroughly after each use.
WARNING: Muffler, engine and
surrounding areas become hot and
can cause a burn. Be careful and do
not touch when hot.
9
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Adjusting Shave Plate
1. To check the adjustment of the shave plate, place the
unit on a level surface. The wheels, shave plate and
augers should all contact level surface. Note that if the
shave plate is adjusted too high, snow may blow under
the housing. If the shave plate wears out excessively,
or the unit does not self-propel, the shave plate may
be too low and needs to be adjusted.
6
Side View
Adjustments
&
Maintenance
NOTE: On new units or units with a new shave plate
installed, the augers may be slightly off the ground.
2. To adjust, tip the snow thrower back so that it rests on
the handle. Loosen the four lock nuts and bolts which
secure the shave plate to the housing. See Figure 6-1.
Move the shave plate to desired position and retighten
the nuts and bolts securely.
Figure 6-1
Replacing Shave Plate
WARNING
Disconnect the
spark plug wire
The shave plate is attached to the bottom of the auger
housing and is subject to wear. It should be checked
periodically. There are two wearing edges and the shave
plate can be reversed. Refer to Figure 6-1.
and ground it against
the engine to prevent
unintended starting.
1. Remove the four carriage bolts and hex lock nuts
which attach it to the snow thrower housing.
2. Install new shave plate, making sure the heads of the
carriage bolts are on the inside of the housing.
NEVER attempt to
make any adjustments
while the engine
is running, except
where specified in the
operator’s manual.
3. Adjust the shave plate according to instructions
above. Tighten the nuts securely before operating the
snow thrower.
Control Cable
As a result of both the control cable and the drive belt
stretching due to wear, periodic adjustments may be
necessary.
Before servicing,
repairing, or inspecting,
disengage the control
bail and stop engine.
Wait until all moving
parts have come
to a complete stop.
Disconnect spark plug
wire and ground it
against the engine to
prevent unintended
starting.
If the auger seems to hesitate when rotating while the
engine maintains a constant speed, an adjustment is
necessary. Proceed as follows:
Figure 6-2
WARNING: Disconnect the spark plug
wire and ground it against the engine
to prevent unintended starting.
The upper hole in the control handle provides for an
adjustment in cable tension. To adjust, disconnect the
end of control cable from the bottom hole in the control
handle and reinsert it in the upper hole. Insert the cable
from the outside as shown in Figure 6-2. Test the snow
thrower to see if there is a noticeable difference.
WARNING: NEVER attempt to make
any adjustments while the engine is
running, except where specified in the
operator’s manual.
Replacing Belt
WARNING: Before servicing, repairing,
or inspecting, disengage the auger
control and stop engine. Wait until all
moving parts have come to a complete
stop. Disconnect spark plug wire and
ground it against the engine to prevent
unintended starting.
Lubrication
Lubricate pivot points on the auger control and the
extension spring at the end of the control cable with a
light oil once every season and before storage of the
snow thrower at the end of the season.
10
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Remove the belt cover by removing five hex screws. See
Figure 6-3. Then simply pull the belt off by grasping it from
the bottom of the auger pulley and pulling off. Once you
remove the belt from the pulleys, you can push down on the
idler pulley to release the belt from under the belt keeper.
6
Idler Pulley
To replace the belt follow these instructions and refer to
Figure 6-4:
Adjustments
&
Maintenance
1. Push down on the Idler pulley.
2. Put belt on top of the auger pulley, under belt keeper.
3. Thread belt around engine pulley.
4. Push belt over bottom of auger pulley.
Reinstall the belt cover removed earlier.
Belt Keeper
Replacing Auger Paddles
The snow thrower auger’s rubber paddles are subject to
wear and should be replaced if any signs of excessive
wear is present.
To remove, pull belt off here
Figure 6-3
WARNING
IMPORTANT: Do NOT allow the auger’s rubber paddles
to wear to the point where portions of the metal auger
itself can come in contact with the pavement. Doing so
can result in serious damage to your snow thrower.
To change the rubber paddles, proceed as follows:
1
3
If any adjustments
need to be made to
the engine while the
engine is running (e.g.
carburetor), keep clear
of all moving parts.
Be careful of muffler,
engine and other
1. Remove the existing rubber paddles by unscrewing the
self-tapping screws which secure them to the auger.
See Figure 6-5.
2. Secure the replacement rubber paddles to the auger
using the hardware removed earlier.
2
surrounding heated
surfaces.
Engine
1. Refer to the separate engine manual for all engine
maintenance procedures.
4
2. Check engine and snow thrower frequently for loose
hardware, and tighten as needed.
Figure 6-4
Carburetor
WARNING: If any adjustments need to
be made to the engine while the engine
is running (e.g. carburetor), keep
clear of all moving parts. Be careful of
muffler, engine and other surrounding
heated surfaces.
IMPORTANT:
Do NOT allow the
auger’s rubber paddles
to wear to the point
where portions of the
metal auger itself can
come in contact with
the pavement. Doing
so can result in serious
damage to your snow
thrower.
1. Refer to the separate engine manual, packed with
your unit, for carburetor adjustment information.
Figure 6-5
11
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If the snow thrower will not be used for 30 days or
longer, or if it is the end of the snow season when the
last possibility of snow is gone, the equipment needs to
be stored properly. Follow storage instructions below to
ensure top performance from the snow thrower for many
more years.
1. Remove all gasoline from the fuel tank to prevent gum
deposits from forming on these parts and harming the
engine.
2. Run the engine until the fuel tank is empty and it stops
due to lack of fuel.
7
NOTE: Fuel stabilizer (such as STA-BIL) is an accept-
able alternative in minimizing the formation of fuel gum
deposits during storage. Add stabilizer to gasoline in fuel
tank or storage container. Always follow mix ratio found
on stabilizer container. Run engine at least 10 minutes
after adding stabilizer to allow it to reach the carburetor.
Do not drain carburetor if using fuel stabilizer.
Off-Season
Storage
Preparing Engine
WARNING: Never store snow thrower
with fuel in tank indoors or in poorly
ventilated areas, where fuel fumes
may reach an open flame, spark or
pilot light as on a furnace, water
heater, clothes dryer or gas appliance.
WARNING: Never use engine or
carburetor cleaning products in the fuel
tank or permanent damage may occur.
NOTE: It is important to prevent gum deposits from
forming in essential fuel system parts of the engine such
as the carburetor, fuel filter, fuel hose or tank during
storage.
WARNING
Never store snow
thrower with fuel
in tank indoors or
in poorly ventilated
areas, where fuel
fumes may reach an
open flame, spark
or pilot light as on a
furnace, water heater,
clothes dryer or gas
appliance.
4. Remove the spark plug and pour one (1) ounce
of engine oil through the spark plug hole into the
cylinder. Cover spark plug hole with a rag and crank
the engine several times to distribute the oil. Replace
spark plug.
CAUTION: Alcohol blended fuels (called gasohol
or using ethanol or methanol) can attract moisture
which leads to separation and formation of acids
during storage. Acidic gas can damage the fuel
system of an engine while in storage.
NOTE: Refer to the engine manual for more information
on preparing the snow thrower engine for storage.
To avoid engine problems, the fuel system should be
emptied before storage for 30 days or longer. Follow
these instructions to prepare your snow thrower for
storage:
Preparing Snow Thrower
1. When storing the snow thrower in an unventilated or
metal storage shed, care should be taken to rustproof
the equipment. Using a light oil or silicone, coat the
equipment, especially any chains, springs, bearings
and cables.
Drain fuel into an
approved container
outdoors, away from
any open flame. Be
certain engine is
cool. Do not smoke.
Fuel left in engine
during warm weather
deteriorates and
WARNING: Drain fuel into an approved
container outdoors, away from any
open flame. Be certain engine is cool. 2. Remove all dirt from exterior of engine and equipment.
Do not smoke. Fuel left in engine
during warm weather deteriorates and
will cause serious starting problems.
3. Follow lubrication recommendations in maintenance
section.
4. Store equipment in a clean, dry area.
will cause serious
starting problems.
Do not drain
carburetor if using
fuel stabilizer.
Never use engine or
carburetor cleaning
products in the fuel
tank or permanent
damage may occur.
12
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Possible Cause(s) Solution
Problem
1. Fuel tank empty, or stale fuel
2. Improper fuel mixture
3. Blocked fuel line
4. Key not in ON position
5. Spark plug wire disconnected
6. Faulty spark plug
1. Fill tank with clean fresh gasoline.
2. Mix new fuel at a ratio of 50:1
3. Clean fuel line
4. Insert key and turn to ON position
5. Connect wire to spark plug.
6. Clean spark plug, readjust gap, or
replace.
7. Prime engine four times.
8. Wait at least ten minutes before
starting.
Engine fails to start
8
Trouble-
Shooting
7. Engine not primed
8. Engine flooded from excessive
priming
1. Unit running on choke
2. Fuel line blocked, or stale fuel
1. Move choke lever to OFF position.
2. Clean fuel line and fill tank with
fresh, clean gasoline.
Engine runs erratic
3. Refer to engine manual for remedy.
4. Refer to engine manual for remedy.
3. Water or dirt in fuel system
4. Carburetor out of adjustment
Please do NOT
return the unit to the
retailer from which it was
purchased, without first
contacting Customer
Support.
1. Carburetor out of adjustment
1. Refer to engine manual for instruc-
tion.
Engine overheats
Loss of power
1. Firmly connect spark plug wire.
2. Clear vent.
1. Spark plug wire loose
2. Vent in gas cap plugged
1. Stop engine immediately and
disconnect spark plug wire. Check
for possible damage. Tighten all
bolts and nuts. Repair as needed. If
the problem persists, take unit to an
authorized service dealer.
1. Loose parts or damaged auger
Excessive vibration
Log onto
or call a customer
service representative
at 1(800) 800-7310 or
(330) 220-4683.
Unit fails to self-propel
Augers continue to rotate
1. Drive cable out of adjustment
1. Adjust auger control cable as shown
in Adjustments section.
2. Replace drive belt.
2. Drive belt loose or damaged
1. Cable out of adjustment.
Note:
You will need the
1. Adjust auger control cable as
shown in Adjustments section.
model number and
serial number if and
when calling Customer
Support, logging
1. Chute assembly clogged.
1. Stop engine and disconnect spark
plug wire. Clean chute and inside
of auger housing with clean-out
tool or stick.
Unit fails to discharge
snow
2. Replace shear pin.
2. Shear pin sheared.
3. Foreign object lodged in auger.
onto our website and
contacting a service
dealer. Please refer
to page 2 of this
3. Stop engine immediately and
disconnect the spark plug wire.
Remove object from auger.
4. Adjust auger control cable.
4. Auger control cable out of
adjustment.
5. Auger belt loose or damaged.
manual for information
regarding locating and
recording your model
and serial numbers.
5. Replace auger belt.
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service representative
or call 1-800-800-7310 for the Customer Support Center. Refer to the engine manual for more engine related
information.
13
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Model S235
15
6
7
32
4
14
11
1
3
13
8
45
46
12
28
23
33
31
30
Determine drive pulley system by
measuring this hole.
41
47
37
35
25
44
9
39
22
25
34
27
36
42
21
38
5
26
25
17
43
10
5
2
19
20
18
16
29
40
24
14
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Model S235
9
Thrower
Part List:
Snow
REF
NO.
PART No.
DESCRIPTION
Qty. REF
NO.
PART No.
DESCRIPTION
Screw, 1/4-14 x .375
Qty.
1
2
629-0236† Extension Cord
1
1
2
1
2
2
1
2
1
1
1
1
18
1
1
1
2
1
1
2
1
1
1
1
1
24
26 710-0352
6
1
1
1
2
1
1
2
1
2
1
1
1
1
2
1
1
1
1
2
4
1
1
1
1
710-0627
710-1003†
Hex Screw, 5/16-24 x .75
Screw, #10-16 x .625
27 684-04227
28 712-04064††
712-0116*
Auger Assembly Housing 21”
Hex Flange Lock Nut, 1/4-20
Jam Lock Nut 3/8--24
Push Cap, 1/2”
3
4
7510009630 Recoil Handle
5
712-04063
722-3022
726-0154
726-0205
Hex Flange Lock Nut, 5/16-18
29 726-0299
30 732-0357A
31 736-0176
32 721-04006
33 736-0329
34 741-04188
35 684-04168††
756-0313*
6
Foam Tape .625 X.25
Push Mount Cable Tie
Clamp, Hose
Extension Spring
Flat Washer .265 x .938 x .120
Fuel Tank Gasket
Lock Washer, 1/4
Ball Bearing
7
8
9
750-0716A Spcr., .630 x .880 x .747
10
11
12
13
14
15
16
17
18
19
736-0242
747-04150
Bell Washer, .340 x .872 x .060
Gas Tank Support Wire
For parts and/or
accessories
please call
1-800-949-4483
Idler Pulley
Idler Pulley
7511825510 Choke Lever Knob
36 748-0234
37 712-0896
38 790-00249
Shoulder Spacer .25
Hex Lock Nut 1/4-28
Bearing Cup
751-0535
751-10023
751-10278
754-0367
Hose, Fuel Line
Tank, Fuel
Cap, Fuel
V-Belt, 3/8 x 34.4 Lg.
39 790-00283†† Idler Brkt. w/Brake
756-0416B Pulley Half, .625 ID x 2.25 OD
756-04243 Pulley, V Type, 3/8 x 6.0 OD
790-00225 2-Cycle Mounting Bracket
790-00238*
40 790-00045A
41 756-0625
42 735-04033
43 735-04032
44 750-04571
Idler Brkt. w/ Brake
Belt Cover
Cable Roller
20 734-04204 Wheel, 7 x 1.5 Dia. Tread
21 684-04228 Auger Assembly Complete
22 710-0106†† Hex Screw, 1/4-20 x 1.00 Gr. 5
Rubber Paddle
Crescent Spiral
Shldr., Spcr., .260 x .785 x .538
710-0191*
Hex Screw 3/8-24 x 1.25
45 7510009636† Recoil Handle, Mitten
23 710-0642
Hex Screw 1/4-20 x .75 Gr. 5
Self-tapping Screw 1/4-20 x .375
Hex Screw, 1/4-14 x 0.625”
46 7512B1476
47 738-0924A
Primer
24
710-0653
Carriage Screw 1/4-28
25 710-0896
† If Equipped
†† Pulley Hole 1/4”
* Pulley Hole 3/8”
NOTE: For a proper working machine,
use Factory Approved Parts. V-belts are
designed to engage and disengage safely.
A substitute (non OEM) V-belt can be
dangerous by not disengaging completely.
NOTE: Snow thrower features/components vary by model. NOT all parts listed above and pictured on the previous
page are standard equipment.
15
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Model S235
32
19
33
22
17
15
21
20
6
4
5
7
3
34
13
2
1
35
10
27
14
30
29
36
9
31
5
4
24
23
18
27
16
11
29
8
25
12
26
27
28
16
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Model S235
REF
NO.
PART NUMBER
DESCRIPTION
Qty.
9
Thrower
1
684-04127
710-04071
710-0451
712-04063
720-04072
731-04388A
731-04426A
736-0119
710-04532
732-04111
725-0157
710-0805
747-04159
749-04106
684-04161
710-04187
710-1003
710-1882
Chute Assembly
1
1
1
7
2
1
1
1
2
1
1
4
1
1
1
3
3
4
1
1
1
5
4
2
8
1
9
1
3
1
1
2
1
1
1
1
2
Carriage Bolt 5/16-18 x 1.0”
Carriage Bolt 5/16-18 x 0.750”
Flange Lock Nut, 5/16-18
Star Knob, 5/16-18
Part List:
Snow
3
4
5
6
Chute Handle
7
Upper Chute
8
Lock Washer, 5/16
9
Carriage Screw, 5/16-18 x 2.0 Gr. 5
Chute Adjustment Spring
Cable Tie
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Screw, 5/16-18 x 1.50
Bail, Gull Wing
Upper Handle, Gull Wing
Shroud Assembly
For parts and/or
accessories
please call
1-800-949-4483
Screw, 1/4-15 x .50
Self-tapping Screw, #10-16 x .625”
Hex Flange Screw 5/16-18 x 1.50 Gr. 5
Hex Nut 5/8-32 x .12 Special
Key Switch-Electric Start
Lock Washer Internal .625 x 1.058
Flat Washer .194” x .62” x .063
Spcr., .325 ID x .625 OD x .88 Lg.
Flat Washer .330 x 1.25 x .06
Screw, 1/4-20 x .62
712-0252
725-2018
736-0225
736-0400
750-0589
736-0362
710-0134
710-3008
712-04064
731-1033
Truss Machine Screw, 5/16-18 x .75
Hex Flange Lock Nut, 1/4-20
Shave Plate,19.88
736-0176
746-04237
749-04114
725-0201
731-1133C
731-04127
731-04353
731-04886
Flat Washer .265 x .938 x .120
Control Cable
Lower Handle
Ignition Key
Spark Plug Cover
Lower Chute 5” Dia
Ring-Lower Chute
Chute, Adapter 5” Dia
17
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NOTES:
18
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NOTES:
19
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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 posses-
sions 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.
“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.
Replacement parts that are not genuine MTD parts.
Transportation charges and service calls.
g.
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 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 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 Some states do not allow the exclusion or limitation of incidental or
PROOF OF PURCHASE, through your local authorized service dealer. To consequential damages, or limitations on how long an implied warranty
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 1-800-949-
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.
Log splitter pumps, valves, and cylinders have a separate one
year warranty.
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.
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.
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: 1-800-949-4483
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