Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty
Op e r a t O r ’s Ma n u a l
Single-Stage Snowthrower — Models 2N1 & 2P5
WARNING
READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL
BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Form No. 769-04001
(April 18, 2007)
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Important Safe Operation Practices
2
WARNING! This symbol points out important safety instructions which, if not followed,
could endanger the personal safety and/or property of yourself and others. Read and follow
all instructions in this manual before attempting to operate this machine. Failure to comply
with these instructions may result in personal injury.
When you see this symbol. HEED ITS WARNING!
CALIFORNIA PROPOSITION 65
WARNING! Engine Exhaust, some of its constituents, and certain vehicle components
contain or emit chemicals known to State of California to cause cancer and birth defects
or other reproductive harm.
DANGER: This machine was built to be operated according to the safe operation practices in
this manual. As with any type of power equipment, carelessness or error on the part of the
operator can result in serious injury. This machine is capable of amputating fingers, hands,
toes and feet and throwing foreign objects. 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
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.
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.
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.
3.
Be familiar with all controls and their proper operation.
Know how to stop the machine and disengage them
quickly.
Never allow children under 14 years of age to operate this
machine. Children 14 and over should read and understand
the instructions and safe operation practices in this manual
and on the machine and be trained and supervised by an
adult.
2.
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.
4.
5.
Never allow adults to operate this machine without proper
instruction.
3.
4.
Use a grounded three-wire extension cord and receptacle
for all machines with electric start engines.
Thrown objects can cause serious personal injury. Plan
your snow-throwing pattern to avoid discharge of material
toward roads, bystanders and the like.
Adjust collector housing height to clear gravel or crushed
rock surfaces.
5.
6.
Disengage all control levers before starting the engine.
6.
7.
Keep bystanders, pets and children at least 75 feet from the
machine while it is in operation. Stop machine if anyone
enters the area.
Never attempt to make any adjustments while engine is
running, except where specifically recommended in the
operator’s manual.
Exercise caution to avoid slipping or falling, especially
when operating in reverse.
7.
Let engine and machine adjust to outdoor temperature
before starting to clear snow.
3
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5.
Never run an engine indoors or in a poorly ventilated area.
Engine exhaust contains carbon monoxide, an odorless
and deadly gas.
Safe Handling of Gasoline
To avoid personal injury or property damage use extreme care
in handling gasoline. Gasoline is extremely flammable and the
vapors are explosive. Serious personal injury can occur when
gasoline is spilled on yourself or your clothes which can ignite.
Wash your skin and change clothes immediately.
6.
7.
Do not operate machine while under the influence of
alcohol or drugs.
Muffler and engine become hot and can cause a burn. Do
not touch. Keep children away.
a. Use only an approved gasoline container.
8.
9.
Exercise extreme caution when operating on or crossing
gravel surfaces. Stay alert for hidden hazards or traffic.
b. Extinguish all cigarettes, cigars, pipes and other
sources of ignition.
Exercise caution when changing direction and while
operating on slopes.
c. Never fuel machine indoors.
d. Never remove gas cap or add fuel while the engine is
hot or running.
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.
e. Allow engine to cool at least two minutes before
refueling.
11. Never direct discharge at children, bystanders and pets or
allow anyone in front of the machine.
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.
12. Do not overload machine capacity by attempting to clear
snow at too fast of a rate.
g. Replace gasoline cap and tighten securely.
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.
h. If gasoline is spilled, wipe it off the engine and
equipment. Move machine to another area. Wait 5
minutes before starting the engine.
14. Disengage power to the auger/impeller when transporting
or not in use.
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.).
15. Never operate machine at high transport speeds on
slippery surfaces. Look down and behind and use care
when backing up.
j.
Allow machine to cool at least 5 minutes before
storing.
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.
k. Never fill containers inside a vehicle or on a truck
or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle
before filling.
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.
l.
If possible, remove gas-powered equipment from
the truck or trailer and refuel it on the ground. If this
is not possible, then refuel such equipment on a
trailer with a portable container, rather than from a
gasoline dispenser nozzle.
18. Never put your hand in the discharge or collector
openings. Always use the clean-out tool provided to
unclog the discharge 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.
m. Keep the nozzle in contact with the rim of the fuel
tank or container opening at all times until fueling is
complete. Do not use a nozzle lock-open device.
Operation
19. Use only attachments and accessories approved by the
1.
2.
3.
4.
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.
manufacturer (e.g. wheel weights, tire chains, cabs etc.).
20. When starting engine, pull cord slowly until resistance
is felt, then pull rapidly. Rapid retraction of starter cord
(kickback) will pull hand and arm toward engine faster than
you can let go. Broken bones, fractures, bruises or sprains
could result.
The auger/impeller control lever is a safety device. Never
bypass its operation. Doing so makes the machine unsafe
and may cause personal injury.
The control levers must operate easily in both directions
and automatically return to the disengaged position when
released.
21. If situations occur which are not covered in this manual, use
care and good judgment. Contact Customer Support for
assistance and the name of your nearest servicing dealer.
Never operate with a missing or damaged chute assembly.
Keep all safety devices in place and working.
4
se c t i O n 2 — iM p O r t a n t sa f e Op e r a t iO n pr a c t ic e s
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Maintenance & Storage
Do not modify engine
1.
Never tamper with safety devices. Check their proper
operation regularly. Refer to the maintenance and
adjustment sections of this manual.
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.
2.
Before cleaning, repairing, or inspecting machine
disengage 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.
Notice Regarding Emissions
Engines which are certified to comply with California and federal
EPA emission regulations for SORE (Small Off Road Equipment)
are certified to operate on regular unleaded gasoline, and
may include the following emission control systems: Engine
Modification (EM), Oxidizing Catalyst (OC), Secondary Air
Injection (SAI) and Three Way Catalyst (TWC) if so equipped.
3.
4.
5.
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.
Do not change the engine governor setting or over-speed
the engine. The governor controls the maximum safe
operating speed of the engine.
Spark Arrestor
WARNING! This machine 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).
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!”
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.
6.
Check control levers 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.
8.
9.
Maintain or replace safety and instruction labels, as
necessary.
Observe proper disposal laws and regulations for gas, oil,
etc. to protect the environment.
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.
11. Always refer to the operator’s manual for proper
instructions on off-season storage.
12. Check fuel line, tank, cap, and fittings frequently for cracks
or leaks. Replace if necessary.
13. Do not crank engine with spark plug removed.
14. According to the Consumer Products Safety Commission
(CPSC) and the U.S. Environmental Protection Agency (EPA),
this product has an Average Useful Life of seven (7) years,
or 60 hours of operation. At the end of the Average Useful
Life have the machine inspected annually by an authorized
service dealer to ensure that all mechanical and safety
systems are working properly and not worn excessively.
Failure to do so can result in accidents, injuries or death.
se c t i O n 2 — iM p O r t a n t sa f e Op e r a t iO n pr a c t ic e s
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Safety Symbols
This page depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the
machine before attempting to assemble and operate.
Symbol
Description
READ THE OPERATOR’S MANUAL(S)
Read, understand, and follow all instructions in the manual(s) before attempting to
assemble and operate
WARNING— ROTATING BLADES
Keep hands out of inlet and discharge openings while machine is running. There are rotating
blades inside
WARNING— ROTATING BLADES
Keep hands out of inlet and discharge openings while machine is running. There are rotating
blades inside
WARNING— ROTATING AUGER
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.
WARNING—THROWN OBJECTS
This machine may pick up and throw and objects which can cause serious personal injury.
WARNING—GASOLINE IS FLAMMABLE
Allow the engine to cool at least two minutes before refueling.
WARNING— CARBON MONOXIDE
Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon
monoxide, an odorless and deadly gas.
WARNING— ELECTRICAL SHOCK
Do not use the engine’s electric starter in the rain
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.
SAVE THESE INSTRUCTIONS!
6
se c t i O n 2 — iM p O r t a n t sa f e Op e r a t iO n pr a c t ic e s
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Assembly & Set-Up
3
Contents of Carton
•
Two Ignition Keys
•
One 20 oz. Bottle 5W-30 Oil
•
One Snow Thrower Operator’s
Manual
NOTE: This Operator’s Manual covers several models. Snow
thrower features may vary by model. Not all features in this
manual are applicable to all snow thrower models and the snow
thrower depicted may differ from yours.
2.
Tighten the wing knobs to secure the handle in place.
See Fig. 3-2.
NOTE: All references to the left or right side of the snow thrower
are from the operator’s position. Any exceptions will be noted.
Assembly
Positioning the Upper Handle
1.
Pivot the upper handle into the operating position making
sure not to pinch the cable in the process, as illustrated in
Fig. 3-1 until it clicks into place.
Figure 3-2
Fuel Recommendations
Use automotive gasoline (unleaded or low leaded to minimize
combustion chamber deposits) with a minimum of 87 octane.
Gasoline with up to 10% ethanol or 15% MTBE (Methyl Tertiary
Butyl Ether) can be used. Never use an oil/gasoline mixture or
dirty gasoline. Avoid getting dirt, dust, or water in the fuel tank.
DO NOT use E85 gasoline.
•
Refuel in a well-ventilated area with the engine stopped.
Do not smoke or allow flames or sparks in the area where
the engine is refueled or where gasoline is stored.
Figure 3-1
•
•
Do not overfill the fuel tank. After refueling, make sure the
tank cap is closed properly and securely.
Be careful not to spill fuel when refueling. Spilled fuel or
fuel vapor may ignite. If any fuel is spilled, make sure the
area is dry before starting the engine.
•
Avoid repeated or prolonged contact with skin or
breathing of vapor.
7
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Adding Fuel
Adding Oil
WARNING! Use extreme care when handling
gasoline. Gasoline is extremely flammable and the
vapors are explosive. Never fuel the machine
indoors or while the engine is hot or running.
Extinguish cigarettes, cigars, pipes and other
sources of ignition.
CAUTION: The engine is shipped without oil in the
engine. You must fill the engine with oil before
operating. Running the engine with insufficient oil
can cause serious engine damage and void the
engine warranty.
1.
Remove the oil filler cap/dipstick and wipe the dipstick
clean. See Fig. 3-4.
WARNING! Always keep hands and feet clear of
equipment moving parts. Do not use a pressurized
starting fluid. Vapors are flammable.
1.
2.
Clean around fuel fill before removing cap to fuel.
A fuel level indicator is located in the fuel tank. Fill tank
until fuel reaches the fuel level indictor, Fig. 3-3. Be careful
not to overfill.
Fill
between
the high
and low
marks
Fuel Level Indicator
Top View
Figure 3-4
2.
Slowly add oil until the oil level registers between high
(H) and low (L), Fig. 3-4. Refer to the Engine Maintenance
section for the correct oil viscosity and engine oil capacity.
NOTE: Do not overfill. Overfilling the engine with oil may result
in the engine smoking, hard starting or spark plug fouling.
Figure 3-3
8
se c t i O n 3— as s e M b l y & se t -up
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Adjustments
Chute Assembly
The pitch of the chute assembly controls the angle at which the
snow is thrown.
1.
2.
Loosen the wing knob found on the left side of the chute
assembly and pivot the upper chute upward or downward
to the desired pitch. Retighten the wing knob before
operating the snow thrower.
Position the chute assembly opening by using the chute
handle to throw the snow in the desired direction. See Fig.
3-5.
Figure 3-5
se c t i O n 3 — as s e M b l y & se t -up
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9
Controls and Features
4
Auger Control
Recoil Starter
Gasoline Cap
Chute Control Handle
Chute
Assembly
Oil Fill
Ignition Key
Primer
Gasoline
Cap
Oil Fill
Throttle
Control
Electric
Starter
Button
Choke
Control
Shave Plate
Electric
Starter
Outlet
Oil Drain
Recoil
Starter
Auger
Figure 4-1
RUN
MARCHE
Choke Lever
Throttle
Activating the choke control closes the
choke plate on carburetor and aids in
starting engine.
CHOKE
VOLET DE
DÉPART
The throttle control is located on the rear of the engine. It
regulates the speed of the engine and will shut off the engine
when moved into the STOP position.
Primer
Pressing primer forces fuel directly into engine’s
carburetor to aid in cold-weather starting.
Recoil Starter
The starter handle is used to manually start the engine.
Ignition Key
The ignition key is a safety device. It must be fully
inserted in order for the engine to start. Remove the
ignition key when the snow thrower is not in use.
Gasoline Cap
Remove the gas cap to add fuel.
NOTE: Do not turn the ignition key in an attempt to
start the engine. Doing so may cause it to break.
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Auger
When engaged, the augers rotation draws snow into the auger
housing and throws it out the discharge chute. Rubber paddles
on the augers also aid in propelling the snow thrower as they
come in contact with the pavement.
Auger Control
Located on the upper handle, the auger control handle is used
to engage and disengage drive to the auger. Squeeze the control
handle against the upper handle to engage the auger; release it
to disengage.
Chute Assembly
Rotate the discharge chute to the left or right using the chute
handle. The pitch of the discharge chute controls the angle at
which the snow is thrown. Loosen the wing knob on the side of
the discharge chute before pivoting the discharge chute upward
or downward. Retighten the knob once the desired position has
been achieved.
Shave Plate
The shave plate maintains contact with the pavement as
the snow thrower is propelled, allowing snow close to the
pavement’s surface to be discharged.
Electric Starter Outlet
The electric starter outlet requires the use of a three-prong
outdoor extension cord and a 120V power source/wall outlet.
NOTE: The electric starter is mounted to the plastic shroud and is
shown in Fig. 4-1 attached to the engine for easier reference.
Electric Starter Button
Pressing the electric starter button engages the engine’s electric
starter when plugged into a 120V power source.
se c t i O n 4 — cO n t r O l s a n d fe a t u r e s
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11
Operation
5
3.
Plugtheextensioncordintotheelectricoutletlocatedonthe
plastic chroud. Plug the other end of extension cord into
a three-prong 120-volt, grounded, AC outlet in a well-
ventilated area. See Fig. 5-2.
Starting the Engine
WARNING! Always keep hands and feet clear of
moving parts. Do not use a pressurized starting
fluid. Vapors are flammable.
NOTE: Allow the engine to warm up for a few minutes after
starting. The engine will not develop full power until it reaches
operating temperatures.
Electric Starter
WARNING! 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. It 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.
DO NOT use electric starter in rain.
1.
2.
Determine that your home’s wiring is a three-wire
grounded system. Ask a licensed electrician if you are
unsure. If you have a grounded three-prong receptacle,
proceed as follows. If you do not have the proper house
wiring, DO NOT use the electric starter under any
conditions.
Figure 5-2
4.
5.
Move the throttle control to the FAST (rabbit) position.
Insert the ignition key fully into the slot, Fig. 5-1. Make
sure it snaps into place. DO NOT turn the ignition key. The
engine cannot start unless the key is inserted into the
ignition switch.
Move the choke to the ON position (cold engine start). If the
engine is warm, place the choke in the OFF position.
6.
Push the primer three to five (3-5) times, making sure to cover
the vent hole when pushing. If the engine is warm, push
the primer only once. Always cover the vent hole when
pushing. Cool weather may require priming to be repeated.
7.
Push the starter button to start the engine. Once the
engine starts, immediately release the starter button.
The electric starter is equipped with thermal overload
protection; the system will temporarily shut-down to allow
starter to cool if electric starter becomes overloaded.
8.
As the engine warms, slowly rotate the choke control to
the OFF position. If the engine falters, restart the engine
and run with the choke at half-choke position for a short
period of time, and then slowly rotate the choke into the
OFF position.
9.
After the engine is running, disconnect the power cord
from the electric starter. When disconnecting, always
unplug the end at the wall outlet before unplugging the
opposite end from the engine.
Figure 5-1
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Recoil Starter
To Engage Augers
CAUTION! Do not pull the starter handle while the
engine running.
1.
To engage the augers and start throwing snow, squeeze
the auger control against the handle. Release to stop the
augers.
Engaging the Drive
WARNING: To avoid unsupervised engine
operation, never leave the engine unattended while
running. Turn the engine off after use and remove
ignition key
Lift up slightly on the handle to allow the rubber paddles on the
auger to contact the pavement and propel the snow thrower
forward. Pushing downward on the handle will raise the augers
off the ground and stop the forward motion.
1.
Insert the ignition key fully into the slot, Fig. 5-1. Make
sure it snaps into place. DO NOT turn the ignition key. The
engine cannot start unless the key is inserted into the
ignition switch.
NOTE: Excessive upward pressure on the handle will result
in premature wear on the rubber auger blades which are
not be covered by the warranty.
2.
3.
Move the throttle control to the FAST (rabbit) position.
Move the choke to the ON position (cold engine start). If
the engine is warm, place the choke in the OFF position.
4.
5.
6.
Push the primer three to five (3-5) times, making sure to
cover the vent hole when pushing. If the engine is warm,
push the primer only once. Always cover the vent hole
when pushing. Cool weather may require priming to be
repeated.
Pull gently on the starter handle until it begins to
resist, then pull quickly and forcefully to overcome the
compression. Do not release the handle and allow it to
snap back. Return the rope SLOWLY to the original position.
If required, repeat this step.
As the engine warms, slowly rotate the choke control to the
OFF position. If the engine falters, restart the engine and
run with the choke at half-choke position for a short period
of time, and then slowly rotate the choke into OFF position.
Stopping the Engine
WARNING! To avoid unsupervised engine
operation, never leave the machine unattended
with the engine running. Turn the engine off after
use and remove ignition key
Run the engine for a few minutes before stopping to help dry off
any moisture on the engine.
1.
2.
Move the throttle control to the STOP position.
Remove the ignition key. Removing the key will reduce the
possibility of unauthorized starting of the engine while the
equipment is not in use. Keep the key in a safe place. The
engine cannot start without the ignition key.
3.
Wipe any moisture away from the controls on the engine.
se c t i O n 5 — Op e r a t iO n
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Maintenance & Adjustments
6
Control Cable
Adjustments
As a result of both the control cable and the auger drive belt
stretching due to wear, periodic adjustments may be necessary. If
the auger seems to hesitate when rotating, proceed as follows:
WARNING! Before Servicing, repairing or
inspecting the snow thrower, disengage the auger
control. Stop the engine and remove the key 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 Fig. 6-2.
Shave Plate
1.
To check the adjustment of the shave plate, place the
machine on a level surface. The wheels, shave plate and
augers should all contact the 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
snow thrower does not self-propel, the shave plate may be
too low and needs to be adjusted.
Control
Handle
NOTE: On new snow throwers or machines with a new
shave plate installed, the augers may be slightly off the
ground.
2.
To adjust the shave plate, 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 Fig. 6-1.
Move the shave plate to the desired position and retighten
the nuts and bolts securely.
Control
Cable
Figure 6-2
Side View
Test the snow thrower to see if there is a noticeable difference. If
after the adjustment to the control cable the auger still hesitates
when rotatiing, see the Service Section for instructions on
replacing the belt.
Bolt
Lock Nut
Chute Assembly
Refer to the Assembly and Set-Up section for instructions on
adjusting the chute assembly.
Maintenance
Lubrication
Lubricate the pivot points on the control handle and the
extension spring at the end of the control cable with a light
oil once every season and before the snow thrower is put into
storage at the end of the season.
Figure 6-1
Off-Season Storage
If the snow thrower will not be used for 30 days or longer, follow
the instructions below.
1.
2.
Store the equipment in a clean, dry area.
If storing the snow thrower in an unventilated area,
rustproof the machine using a light oil or silicone to coat
the snow thrower.
3.
Clean the exterior of the engine and the snow thrower.
14
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Engine Maintenance
7
Periodic inspection and adjustment of the engine is essential if
high level performance is to be maintained. Regular maintenance
will also ensure a long service life. The required service intervals
and the type of maintenance to be performed are described
in the table below. Follow the hourly or calendar intervals,
whichever occur first. More frequent service is required when
operating in adverse conditions.
WARNING! To prevent accidental start-up, shut off
the engine and remove the ignition key before
performing any type of engine maintenance.
Maintenance Schedule
Tasks
First 5 Hrs. Each Use or
Every Season Every Season Every Season
or 25 Hrs. or 50 Hrs. or 100 Hrs.
Service Dates
Every 5 Hrs.
Check engine oil
Change engine oil
Check spark plug
Service spark plug
Clean exhaust area
Oil Recommendations
Checking Engine Oil
When adding oil to the engine, refer to the viscosity chart
below (Fig. 7-1). Engine oil capacity is 600 ml (approx. 20
oz.). Do not over-fill. Use a 4-stroke, or an equivalent high
detergent, premium quality motor oil certified to meet or
exceed U.S. automobile manufacturer’s requirements for service
classification SG, SF. Motor oils classified SG, SF will show this
designation on the container.
1.
2.
3.
Remove the oil filler cap/dipstick and wipe the dipstick
clean. Ref. Fig. 3-4.
Insert the cap/dipstick into the oil filler neck, but DO NOT
screw it in.
Remove the oil filler cap/dipstick. If the level is low, slowly
add oil until oil level registers between high (H) and low (L),
Ref. Fig. 3-4.
NOTE: Do not overfill. Overfilling the engine with oil may
result in the engine smoking, hard starting or spark plug
fouling.
Synthetic
0W-30
0W-0
5W-30
5W-30
(°F) -40°
-20°
-30°
0°
20°
40°
0°
(°C)
-20°
-10°
Figure 7-1
CAUTION: DO NOT use nondetergent oil or
2-stroke engine oil. It could shorten the engine’s
service life.
15
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To ensure proper engine operation, the spark plug must be
properly gapped and free of deposits.
Changing Engine Oil
NOTE: Check the oil level before each use and after every five
hours of operation to be sure the correct oil level is maintained.
Refer to Checking Oil Level in the Operation Section
1.
Remove the spark plug boot and use a spark plug wrench
to remove the plug, Fig. 7-4.
1.
2.
3.
Drain fuel from the tank by running the engine until the
fuel tank is empty. Be sure the fuel fill cap is secure.
Spark Plug
Place a suitable oil collection container under the oil drain
plug.
Remove the oil drain plug, Figure 7-3.
Spark Plug Boot
Figure 7-4
Oil Plug
2.
3.
Visually inspect the spark plug. Discard the spark plug if
there is any apparent wear, or if the insulator is cracked or
chipped. Clean the spark plug with a wire brush if it is to be
reused.
Measure the plug gap with a feeler gauge. Correct as
necessary by bending the side electrode, Fig. 7-5. The gap
should be set to .02-.03 inches (0.60-0.80 mm).
Figure 7-1
4.
Tip the engine to drain oil into the container. Used oil must
be disposed of at a proper collection center.
5.
6.
Reinstall the drain plug and tighten it securely.
Refill with the recommended oil and check the oil level,
refer to Assembly & Set-Up Section for instructions.
Electrode
7.
Reinstall the oil filler cap/dipstick securely.
CAUTION: Thoroughly wash your hands with soap
and water as soon as possible after handling
used oil.
NOTE: Please dispose of used motor oil in a manner that is
friendly to the environment. Take it to a recyling center or other
collection center.
.02-.03 in.
(0.60-0.80 mm)
Spark Plug
WARNING! DO NOT check for a spark with the
spark plug removed. DO NOT crank the engine with
the spark plug removed.
Figure 7-5
4.
Check that the spark plug washer is in good condition
and thread the spark plug in by hand to prevent cross-
threading.
WARNING! If the engine has been running, the
muffler will be very hot. Be careful not to touch the
muffler.
16
se c t i O n 7— en g in e Ma i n t e n a n c e
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5.
After the spark plug is seated, tighten with a spark plug
wrench to compress the washer.
NOTE: When installing a new spark plug, tighten 1⁄2-turn
after the spark plug seats to compress the washer. When
reinstalling a used spark plug, tighten 1⁄8- to 1⁄4-turn after
the spark plug seats to compress the washer.
CAUTION: The spark plug must be tightened
securely. A loose spark plug can become very hot
and can damage the engine.
Cleaning the Engine
If the engine has been running, allow it to cool for at least half
an hour before cleaning. Periodically remove dirt build-up from
engine.
CAUTION: Do not spray the engine with water to
clean it because the water could contaminate the
fuel. Using a garden hose or pressure washing
equipment can also force water into the muffler
opening. Water that passes through the muffler can
enter the cylinder and cause damage.
WARNING! Accumulation of debris around the
muffler could cause a fire. Inspect and clean before
every use.
Off-Season Storage
Engines stored over 30 days need to be drained of fuel to
prevent deterioration and gum from forming in the fuel
system or on essential carburetor parts. If the gasoline in your
engine deteriorates during storage, you may need to have the
carburetor, and other fuel system components, serviced or
replaced.
1.
Remove all fuel from the tank by running the engine until
it stops.
2.
3.
Change the engine oil.
Remove the spark plug and pour approximately 1 oz. (30
ml) of clean engine oil into the cylinder. Pull the recoil
starter several times to distribute the oil, and reinstall the
spark plug.
4.
5.
Clean debris from around the engine, and under, around,
and behind the muffler. Apply a light film of oil on any
areas that are susceptible to rust.
Store in a clean, dry and well ventilated area away from any
appliance that operates with a flame or pilot light, such as a
furnace, water heater or clothes dryer. Avoid any area with
a spark producing electric motor, or where power tools are
operated.
6.
7.
If possible, avoid storage areas with high humidity.
Keep the engine level in storage. Tilting the engine can
cause fuel or oil leakage.
se c t i O n 7 — en g in e Ma i n t e n a n c e
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17
Service
8
To replace the belt follow these instructions and refer to Fig. 7-2:
Replacing Belt
1.
Remove the belt cover by removing the five hex screws
that secure it to the frame. See Fig. 7-1.
1
3
Auger Pulley
Idler Pulley
Belt Keeper
Engine Pulley
Hex Screws
2
4
Figure 7-2
1.
2.
Push down on the idler pulley.
Figure 7-1
Position the belt on top of the auger pulley and under the
belt keeper.
2.
Remove the belt by grasping it from the bottom of the
auger pulley and pulling outward.
3.
4.
5.
Route the belt around the engine pulley.
Push the belt over the bottom of the auger pulley.
Reinstall the belt cover removed earlier.
NOTE: Push down on the idler puller to release the belt
from under the belt keeper. See Fig. 7-1.
18
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Replacing Auger Paddles
The snow thrower auger’s rubber paddles are subject to wear
and should be replaced if any signs of excessive wear are present.
CAUTON: 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.
Remove the existing rubber paddles by unthreading the
self-tapping screws which secure them to the auger. See
Fig. 7-3.
Self-Tapping Screws
Figure 7-3
2.
Secure the replacement rubber paddles to the auger using
the hardware removed earlier.
Replacing Shave Plate
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.
1.
2.
3.
4.
Remove the four carriage bolts and hex lock nuts which
attach it to the snow thrower housing.
Install the new shave plate, making sure the heads of the
carriage bolts are on the inside of the housing.
Adjust the shave plate as instructed in the Maintenance &
Adjustments Section.
Tighten securely once adjusted.
se c t i O n 7 — se r v i c e
19
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Troubleshooting
9
Problem
Cause
Remedy
Engine Fails to start
1. Fuel tank empty, or stale fuel.
2. Blocked fuel line.
1. Fill tank with clean fresh gasoline.
2. Clean fuel line.
3. Key not inserted all the way.
4. Spark plug wire disconnected.
5. Faulty spark plug.
3. Insert key all the way.
4. Connect wire to spark plug.
5. Clean spark plug, readjust gap, or replace.
6. Prime engine five to seven times.
6. Engine not primed.
7. Engine flooded from excessive priming.
8. Throttle may be in the off position.
7. Wait at least ten minutes before starting.
8. Move the throttle to the fast or “rabbit”
position.
Engine runs erratic
1. Engine running on choke.
1. Move choke lever to OFF position.
2. Fuel line blocked, or stale fuel.
2. Clean fuel line and fill tank with fresh, clean
gasoline.
3. Water or dirt in fuel system.
3. Drain fuel tank. Refill with fresh fuel.
4. Carburetor out of adjustment.
1. Carburetor out of adjustment.
1. Spark plug wire loose.
4. Contact an authorized Service Center.
2. Contact an authorized Service Center.
1. Firmly connect spark plug wire.
Engine overheats
Loss of power
2. Vent in gas cap plugged.
2. Clear vent.
Excessive vibration
1. Loose parts or damaged auger.
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 snow thrower to
an authorized service dealer.
Snowthrower fails to self-
propel
1. Auger control cable out of adjustment.
1. Adjust auger control cable as shown in
Maintenance and Adjustments section.
2. Auger drive belt loose or damaged.
1. Auger control cable out of adjustment.
2. Replace auger drive belt.
Augers continue to rotate
Unit fails to discharge snow
1. Adjust auger control cable as shown in
Maintenance and Adjustments section.
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.
2. Foreign object lodged in auger.
2. Stop engine immediately and disconnect the
spark plug wire. Remove object from auger.
3. Auger control cable out of adjustment.
4. Auger belt loose or damaged.
3. Adjust auger control cable.
4. Replace auger belt.
20
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Replacement Parts
10
Component
Part Number and Description
731-1033
Shave Plate
754-04204
Belt V-Type
735-04032
735-04033
753-04472
Spiral Crescent
Rubber Paddle
Replacement Kit (includes 4 crescents,
2 paddles and hardware)
731-05632
746-04237
Key
Clutch Cable
951-10292
Spark Plug
Phone (800) 800-7310 to order replacement parts or a complete Parts Manual (have your full model number and serial number ready).
21
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MTD CONSUMER GROUP (MTD) and the United States Environment Protection Agency (U. S. EPA)
Emission Control System Warranty Statement
(Owner’s Defect Warranty Rights and Obligations)
The U. S. EPA and MTD are pleased to explain the emissions control system warranty on your model year 2005 and later small off-road engine.
New small off-road engines must be designed, built and equipped to meet the stringent anti-smog standards. MTD must warranty the emission
control system on your engine for the period of time listed below, provided there has been no abuse, neglect or improper maintenance of your small
off-road engine.
Your emission control system may include parts such as the carburetor, air cleaner, ignition system, exhaust system, and other associated emis-
sion-related components.
Where a warrantable condition exists, MTD will repair your small off-road engine at no cost to your including diagnosis, parts and labor.
MANUFACTURER’S WARRANTY COVERAGE:
This emissions control system is warranted for two years. If any emission-related part on your engine is defective, the part will be repaired or
replaced by MTD.
OWNER’S WARRANTY RESPONSIBILITIES:
As the small off-road engine owner, you are responsible for the performance of the required maintenance listed in your Owner’s Manual. MTD
recommends that you retain all your receipts covering maintenances on your small off-road engine, but MTD can not deny warranty solely for the
lack of receipts or for your failure to ensure the performance to all scheduled maintenance.
As the small off-road engine owner, you should however be aware that MTD may deny your warranty coverage if your small off-road engine or part
has failed due to abuse, neglect, improper maintenance or unapproved modifications.
You are responsible for presenting your small off-road engine to an Authorized MTD Service Dealer as soon as a problem exists. The warranted
repairs should be completed in a reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should contact a MTD Service Representative at 1-800-800-7310
and address is MTD LLC, P.O. Box 361131, Cleveland OH, 44136-0019.
DEFECTS WARRANTY REqUIREMENTS FOR 1995 AND LATER SMALL OFF-ROAD ENGINES:
This section applies to 1995 and later small off-road engines. The warranty period begins on the date the engine or equipment is delivered to an
ultimate purchaser.
(a) General Emissions Warranty Coverage
MTD must warrant to the ultimate purchaser and each subsequent purchaser that the engine is:
(1) Designed, built, and equipped so as to conform with all applicable regulations adopted by the Air Resources Board pursuant to its authority in
Chapters 1 and 2,Part 5, Division 26 of the Health and Safety Code; and
(2) Free from defects in materials and workmanship that cause the failure of a warranted part to be identical in all material respects to the part as
described in the engine manufacturer’s application for certification for a period of two years.
(b) The warranty on emissions-related parts will be interpreted as follows:
(1) Any warranted part that is not scheduled for replacement as required maintenance in the written instructions required by Subsection (c)
must be warranted for the warranty period defined in Subsection (a)(2). If any such part fails during the period of warranty coverage, it must be
repaired or replaced by MTD according to Subsection (4) below. Any such part repaired or replaced under the warranty must be warranted for
the remaining warranty period.
(2) Any warranted part that is scheduled only for regular inspection in the written instructions required by Subsection (c) must be warranted for
the warranty period defined in Subsection (a)(2). A statement in such written instructions to the effect of “repair or replace as necessary” will
not reduce the period of warranty coverage. Any such part repaired or replaced under warranty must be warranted for the remaining warranty
period.
(3) Any warranted part that which is scheduled for replacement as required maintenance in the written instructions required by Subsection (c)
must be warranted for the period of time prior to the first scheduled replacement point for that part. If the part fails prior to the first scheduled
replacement, the part must be repaired or replaced by MTD according to Subsection (4) below. Any such part repaired or replaced under
warranty must be warranted for the remainder of the period prior to the first scheduled replacement point for the part.
(4) Repair or replacement of any warranted part under the warranty provisions of this article must be performed at no charge to the owner at a
warranty station.
(5) Notwithstanding the provisions of Subsection (4) above, warranty services or repairs must be provided at all MTD distribution centers that
are franchised to service the subject engines.
(6) The owner must not be charged for diagnostic labor that leads to the determination that a warranted part is in fact defective, provided that
such diagnostic work is performed at a warranty station.
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(7) The engine manufacturer is liable for damages to other engine components proximately caused by a failure under warranty of any warranted
part.
(8) Throughout the engine’s warranty period defined in Subsection (a)(2), MTD will maintain a supply of warranted parts sufficient to meet the
expected demand for such parts.
(9) Any replacement part may be used in the performance of any warranty maintenance or repairs and must be provided without charge to the
owner. Such use will not reduce the warranty obligations of MTD.
(10) Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any non-exempted add-on or
modified parts shall be grounds for disallowing a warranty claim made in accordance with this article. The engine manufacturer shall not be
liable under this article to warrant failures of warranted parts caused by the use of non-exempted add-on or modified part.
(c) MTD will include a copy of the following emission warranty parts list with each new engine, using those portions of the list applicable to the
engine.
(1) Fuel Metering System
• Cold start enrichment system (soft choke)
• Carburetor and internal parts
• Fuel Pump
(2) Air Induction System
• Air cleaner
• Intake manifold
(3) Ignition System
• Spark plug(s)
• Magneto Ignition System
(4) Exhaust System
(5) Miscellaneous Items Used in Above System
• Vacuum, temperature , position, time sensitive valves and switches
• Connectors and assemblies
GDOC-100173 Rev. A
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MANUFACTURER’S LIMITED WARRANTY FOR
The limited warranty set forth below is given by MTD LLC with
c. Service completed by someone other than an authorized service
dealer.
respect to new merchandise purchased and used in the United States
and/or its territories and possessions, and by MTD Products Limited
with respect to new merchandise purchased and used in Canada and/
or its territories and possessions (either entity respectively, “MTD”).
d. MTD does not extend any warranty for products sold or exported
outside of the United States and/or Canada, and their respective
possessions and territories, except those sold through MTD’s
authorized channels of export distribution.
“MTD” warrants this product (excluding its Normal Wear Parts and
Attachments as described below) against defects in material and
workmanship for a period of two (2) years commencing on the date
of original purchase and will, at its option, repair or replace, free of
charge, any part found to be defective in materials or workmanship.
This limited warranty shall only apply if this product has been
operated and maintained in accordance with the Operator’s Manual
furnished with the product, and has not been subject to misuse,
abuse, commercial use, neglect, accident, improper maintenance,
alteration, vandalism, theft, fire, water, or damage because of other
peril or natural disaster. Damage resulting from the installation or use
of any part, accessory or attachment not approved by MTD for use
with the product(s) covered by this manual will void your warranty as
to any resulting damage.
e. Replacement parts that are not genuine MTD parts.
f. Transportation charges and service calls.
g. MTD does not warrant this product for commercial use.
No implied warranty, including any implied warranty of
merchantability of fitness for a particular purpose, applies after
the applicable period of express written warranty above as to the
parts as identified. No other express warranty, whether written or
oral, except as mentioned above, given by any person or entity,
including a dealer or retailer, with respect to any product, shall
bind MTD. During the period of the warranty, the exclusive remedy
is repair or replacement of the product as set forth above.
The provisions as set forth in this warranty provide the sole and
exclusive remedy arising from the sale. MTD shall not be liable
for incidental or consequential loss or damage including, without
limitation, expenses incurred for substitute or replacement lawn
care services or for rental expenses to temporarily replace a
warranted product.
Normal Wear Parts are warranted to be free from defects in material
and workmanship for a period of thirty (30) days from the date of
purchase. Normal wear parts include, but are not limited to items
such as: batteries, belts, blades, blade adapters, tines, grass bags,
wheels, rider deck wheels, seats, snow thrower skid shoes, friction
wheels, shave plates, auger spiral rubber, engine oil, air filters, spark
plugs and tires.
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.
Attachments — MTD warrants attachments for this product against
defects in material and workmanship for a period of one (1) year,
commencing on the date of the attachment’s original purchase or
lease. Attachments include, but are not limited to items such as:
grass collectors and mulch kits.
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.
HOW TO OBTAIN SERVICE: Warranty service is available, WITH
PROOF OF PURCHASE, through your local authorized service dealer.
To locate the dealer in your area:
In the U.S.A.
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.
Check your Yellow Pages, or contact MTD LLC at P.O. Box 361131,
Cleveland, Ohio 44136-0019, or call 1-800-800-7310, 1-330-220-
.
HOW STATE LAW RELATES TO THIS WARRANTY: This limited
warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
In Canada
Contact MTD Products Limited, Kitchener, ON N2G 4J1, or call 1-800-
IMPORTANT: Owner must present Original Proof of Purchase to
obtain warranty coverage.
This limited warranty does not provide coverage in the following
cases:
a. Log splitter pumps, valves, and cylinders have a separate one-
year warranty.
b. 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.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-800-800-7310, 1-330-220-4683
MTD Canada Limited - KITCHENER, ON N2G 4J1; Phone 1-800-668-1238
GDOC-100016 REV. B
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