Murray 621403x61NB Instruction Manual
Instruction Book − Snowthrower Model 621403x61NB
Betriebsanleitung − Schneefräse Modell 621403x61NB
Navodila za uporabo − SneĤna freza Model 621403x61NB
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CONTENTS
HAZARD SYMBOLS AND THE MEANINGS 8. . . . . . . . . .
OPERATING SYMBOLS AND THEIR MEANINGS 8. . . . .
RULES FOR SAFE OPERATION 9. . . . . . . . . . . . . . . . . . . .
ASSEMBLY 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATION 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE CHART 13. . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLE SHOOTING CHART 15. . . . . . . . . . . . . . . . . . . . .
LIMITED WARRANTY 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information
This instruction book is written for a person with some mechanical ability.
Like most service books, not all the steps are described. Steps on how to
loosen or tighten fasteners are steps anyone can follow with some
mechanical ability. Read and follow these instructions before you use the
unit.
Know your product: If you understand the unit and how the unit
operates, you will get the best performance. As you read this manual,
compare the illustrations to the unit. Learn the location and the function of
the controls. To help prevent an accident, follow the operating instructions
and the safety rules. Keep this manual for future reference.
IMPORTANT: Many units are not assembled and are sold in cartons. It is
the responsibility of the owner to make sure the assembly instructions in
this manual are exactly followed. Other units are purchased in an
assembled condition. On assembled units, it is the responsibility of the
owner to make sure the unit is correctly assembled. The owner must
carefully check the unit according to the instructions in this manual before
it is first used.
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Controls & Equipment Features (see Figure 1)
Crank Assembly (2) − Changes the direction of the discharge chute.
Chute Deflector (3) − Changes the distance the snow is thrown.
Discharge Chute (4) − Changes the direction the snow is thrown.
Auger Drive Lever (5) − Starts and stops the auger (snow gathering and
throwing) which also propels the snowthrower..
Engine Features
Stop Switch (8) − If equipped, move to the ON position to start the
engine.
Primer Button (9) − Injects fuel directly into the carburetor for fast starts
in cold weather.
Recoil Starter Handle (12) − Use to manually start the engine.
Choke Control (14) − Use to start a cold engine.
www.briggsandstratton.com
MODEL NO.: 621403x61NB
SKU No.:
YYYY MM DD:
SERIAL NO.:
3500 min-1
Assembled in Suzhou, China 215218
by Limac for Briggs & Stratton Corporation
30 kg
Declared vibration emission values in accordance with Directive 98/37/EC.
Vibration Emission according to EN 1033;1996: 7,1 m/s2.
Values determined at the handle when the machine was operated stationary on a
concrete surface at 3500 min−1.
Declared airborne noise emissions of LwA 104 dB is in accordance with Directive
2000/14/EC, Annex V.
Sound Pressure Level at operator position 84 dB.
Values determined at ear according to the specifications of EN ISO 11201.
Declared airborne sound
power level of 104 dB(A) is in
accordance with Directive
2000/14/EC.
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This manual contains safety information to make you
aware of the hazards and risks associated with snow
throwers, and how to avoid them. The snow thrower is designed and
intended for removal of snow, and should not be used for any other
purpose. It is important that you read and understand these
instructions, and anyone operating the equipment read and understand
these instructions.
The engine exhaust from this product contains chemicals known to the
State of California to cause cancer, birth defects, or other reproductive
harm.
WARNING
A signal word (DANGER, WARNING, or CAUTION) is used with the alert
symbol to indicate the likelihood and the potential severity of injury. In
addition, a hazard symbol may be used to represent the type of hazard.
DANGER indicates a hazard which, if not avoided, will result in
death or serious injury.
WARNING indicates a hazard which, if not avoided, could result
in death or serious injury.
CAUTION indicates a hazard which, if not avoided, might result
in minor or moderate injury.
CAUTION, when used without the alert symbol, indicates a
situation that could result in damage to the equipment.
Hazard Symbols and the meanings
These symbols are used on your equipment and defined in your operating
manual. Review and understand the meanings. The use of one of these
symbols combined with a signal word will alert you to potential hazards
and how to avoid them.
Explosion
Toxic fumes
Shock
Hot Surface
Fire
Operator’s Manual − Read and understand before
performing any activity or running equipment.
Safety Alert − Identifies safety information about
hazards that can result in personal injury.
Rotating auger
Rotating impeller
Rotating gears
Thrown objects
Keep a safe distance
from the equipment.
Shut off engine and remove spark plug connector
before performing maintenance or repair work.
Never reach into
rotating parts.
Recommended ear
protection for extended
use.
Operating Symbols and their meanings
These symbols are used on your equipment and defined in your operating
manual. It is important that you review and understand the meanings.
Failure to understand the symbols might result in harm to you.
Stop
Fuel
Choke off
Oil
Choke on
Slow
Fast
On Off
Ignition Key
Ignition Off
Ignition On
Primer bulb
Throttle
Drive Clutch
Auger Clutch
Engage
RIGHT
Auger Collector
Traction
Discharge Chute
LEFT UP
DOWN
Foward
Neutral
Reverse
Push to engage
electric start
Electric
Start
Engine
Start
Engine Run
Engine Off
Chute Deflector
Engage
Disengage
Heated Grips
Engage
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WARNING: This machine is capable ofto amputating hands and feet and throwing objects. Read these safety rules
and follow them closely. Failure to obey these rules could result in loss of control of unit, severe personal injury or
death to you, or bystanders, or damage to property or equipment. The triangle in text signifies important cautions or warnings which must be followed.
Safe Operation Practices for Snowthrowers
IMPORTANT: Safety standards require operator presence controls to
minimize the risk of injury. Your snowthrower is equipped with such controls. Do not attempt to defeat the function of the operator presence control under any circumstances.
Training
1. Read, understand, and follow all instructions on the machine and in the
manuals before operating this unit. Be thoroughly familiar with the controls and the proper use of the equipment. Know how to stop the unit
and disengage the controls quickly.
2. Never allow children to operate the equipment. Never allow adults to
operate the equipment without proper instruction.
3. Keep the area of operation clear of all persons, particularly small
children and pets.
4. Exercise caution to avoid slipping or falling especially when operating in
reverse.
Preparation
1. Thoroughly inspect the area where the equipment is to be used and
remove all doormats, sleds, boards, wires, and other foreign objects.
2. Disengage all clutches and shift into neutral before starting the engine
(motor).
3. Do not operate the equipment without wearing adequate winter outer
garments. Wear footwear that will improve footing on slippery surfaces.
Avoid loose fitting clothing that can get caught in moving parts.
4. Handle fuel with care; it is highly flammable.
a. Use an approved fuel container.
b. Never add fuel to a running engine or hot engine.
c. Fill fuel tank outdoors with extreme care. Never fill fuel tank indoors.
Replace fuel cap securely and wipe up spilled fuel.
d. 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.
e. When practical, remove gas−powered equipment from the truck or
trailer and refuel it on the ground. If this is not possible, then refuel
such on a trailer with a portable container, rather than from a gasoline dispenser nozzle.
f. Keep nozzle in contact with the rim of the fuel tank or container
opening at all times, until refueling is complete. Do not use a nozzle
lock−open device.
g. Replace gasoline cap securely and wipe up spilled fuel.
h. If fuel is spilled on clothing, change clothing immediately.
5. Use extension cords and receptacles as specified by the manufacturer for all units with electric drive motors or electric starting motors.
6. Adjust the collector housing height to clear gravel or crushed rock
surfaces.
7. Never attempt to make any adjustments while the engine (motor) is
running (except when specifically recommended by manufacturer).
8. Let engine (motor) and snowthrower adjust to outdoor temperatures
before starting to clear snow.
9. Always wear safety glasses or eye shields during operation or while
performing an adjustment or repair to protect eyes from foreign objects
that may be thrown from the machine.
Operation
1. Do not put hands or feet near or under rotating parts. Keep clear of the
discharge opening at all times.
2. Exercise extreme caution when operating on or crossing gravel drives,
walks or roads. Stay alert for hidden hazards or traffic.
3. After striking a foreign object, stop the engine (motor), remove the wire
from the spark plug, disconnect the cord on electric motors, thoroughly
inspect snowthrower for any damage, and repair the damage before
restarting and operating the snowthrower.
4. If the unit should start to vibrate abnormally, stop the engine (motor)
and check immediately for the cause. Vibration is generally a warning
of trouble.
5. Stop the engine (motor) whenever you leave the operating position,
before unclogging the collector/impeller housing or discharge chute and
when making any repairs, adjustments, or inspections.
6. When cleaning, repairing, or inspecting, make certain the collector/impeller and all moving parts have stopped. Disconnect the spark plug
wire and keep the wire away from the spark plug to prevent accidental
starting.
7. Do not run the engine indoors, except when starting the engine and for
transporting the snowthrower in or out of the building. Open the outside
doors; exhaust fumes are dangerous (containing CARBON MONOXIDE, an ODORLESS and DEADLY GAS).
8. Exercise extreme caution when operating on slopes. Do not attempt to
clear steep slopes.
9. Never operate the snowthrower without proper guards, plates, or other
safety protective devices in place and working.
10. Never direct the discharge toward people or areas where property
damage can occur. Keep children and others away.
11. Do not overload the machine capacity by attempting to clear snow at
too fast a rate.
12. Never operate the machine at high transport speeds on slippery surfaces. Look behind and use care when operating in reverse.
13. Disengage power to the collector/impeller when snowthrower is transported or not in use.
14. Use only attachments and accessories approved by the manufacturer
of the snowthrower (such as cabs, tire chains, etc..).
15. Never operate the snowthrower without good visibility or light. Always
be sure of your footing and keep a firm hold on the handles. Walk,
never run.
16. Never touch a hot engine or muffler.
17. Never operate the snowthrower near glass enclosures, automobiles,
window wells, drop−offs, and the like without proper adjustment of the
snow discharge angle.
18. Never direct discharge at bystanders or allow anyone in front of the
unit.
19. Never leave a running unit unattended. Always disengage the auger
and traction controls, stop engine, and remove keys.
20. Do not operate the unit while under the influence of alcohol or drugs.
21. Keep in mind the operator is responsible for accidents occurring to
other people or property.
22. Data indicates that operators, age 60 years and above, are involved
in a large percentage of power equipment−related injuries. These
operators should evaluate their ability to operate the unit safely
enough to protect themselves and others from injury.
23. DO NOT wear long scarves or loose clothing that could become
entangled in moving parts.
24. Snow can hide obstacles. Make sure to remove all obstacles from
the area to be cleared.
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Children
Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the unit and the operating activity. Never
assume that children will remain where you last saw them.
1. Keep children out of the area and under the watchful care of another
responsible adult.
2. Be alert and turn off if children enter the area.
3. Never allow children to operate the unit.
4. Use extra care when approaching blind corners, shrubs, trees, or
other objects that may obscure vision.
Clearing A Clogged Discharge Chute
Hand contact with the rotating impeller inside the discharge chute is the
most common cause of injury associated with snowthrowers. Never use
your hand to clean out the discharge chute.
To clear the chute:
1. SHUT OFF THE ENGINE.
2. Wait 10 seconds to be sure the impeller blades have stopped rotating.
3. Always use a clean out tool, not your hands.
Service, Maintenance And Storage
1. Check shear bolts and other bolts at frequent intervals for proper tightness to be sure the equipment is in safe working condition.
2. Never store the machine with fuel in the tank inside a building where
ignition sources are present such as hot water and space heaters, or
clothes dryers. Allow the engine to cool before storing in any enclosure.
3. Always refer to operator’s manual for important details if the snowthrower is to be stored for an extended period.
4. Maintain or replace safety and instruction labels as necessary.
5. Run the machine a few minutes after throwing snow to prevent freeze−
up of the collector/impeller.
6. If fuel is spilled, do not attempt to start the engine but move the machine away from the area of spillage and avoid creating any source of
ignition until fuel vapors have dissipated.
7. Always observe safe refueling and fuel handling practices when refueling the unit after transportation or storage.
8. Always follow the engine’s manual instructions for storage preparations
before storing the unit for both short and long term periods,
9. Always follow the engine manual instructions for proper start-up procedures when returning the unit to service.
10. Maintain or replace safety and instruction labels as necessary.
11. Keep nuts and bolts tight and keep equipment in good condition.
12. Never tamper with safety devices. Check their proper operation regularly and make necessary repairs if they are not functioning properly.
13. Components are subject to wear, damage, and deterioration. Frequently check components and replace with manufacturer’s recommended
parts, when necessary.
14. Check control operation frequently. Adjust and service as required.
15. Use only factory authorized replacement parts when making repairs.
16. Always comply with factory specifications on all settings and adjustments.
17. Only authorized service locations should be utilized for major service
and repair requirements.
18. Never attempt to make major repairs on this unit unless you have been
properly trained. Improper service procedures can result in hazardous
operation, equipment damage and voiding of manufacturer’s warranty.
19. Check shear bolts (pins) and other bolts at frequent intervals for proper
tightness to be sure the equipment is in safe working condition.
Emissions
1. Engine exhaust from this product contains chemicals known, in certain
quantities, to cause cancer, birth defects, or reproductive harm.
2. If available, look for the relevant Emissions Durability Period and Air
Index information on the engine emissions label.
Ignition System
1. This spark ignition system complies with Canadian ICES-002.
ASSEMBLY
Read and follow the assembly and adjustment
instructions for your snow thrower. All fasteners
are in the parts bag. Do not discard any parts or
material until the unit is assembled.
WARNING: Before doing any assembly or maintenance to the snow
thrower, remove the wire from the
spark plug.
NOTE: In this instruction book, left and right
describe the location of a part from the operator’s position behind the unit.
NOTE: Torque is measured in foot pounds
(metric N.m). This measurement describes
how tight a nut or bolt must be. The torque is
measured with a torque wrench.
NOTE: Illustrations are located on page 2
and on pages 3 through 6.
Tools Required
1Knife
1 Pliers
How To Remove The Snow Thrower
From The Carton
1. Locate and remove the container of oil.
2. Locate all parts that are packed separately
and remove from the carton.
3. Remove and discard the packing material
from around the snow thrower.
4. Cut down all four corners of the carton and
lay the side panels flat.
5. Hold onto the lower handle and pull the snow
thrower off the carton.
CAUTION: DO NOT back over cables.
6. Remove the packing material from handle
assembly. Remove the lower insert from the
axle.
How To Assemble The Handle
1. Remove the packing material from the upper
and lower handles.
2. (Figure 2) Loosen the knobs (1) on each
side of the handle (2).
3. Raise the upper handle (2) to the operating
position. Hold the upper handle (2) apart to
prevent scratching the lower handle.
NOTE: Make sure the auger drive cable is
not caught between the upper and lower
handle.
4. Tighten the knobs (1).
How To Prepare The Engine
WARNING: Follow the engine
manufacturer’s instructions for the
type of fuel and oil to use. Always
use a safety fuel container. Do not smoke
when adding fuel to the fuel tank. When
inside an enclosure, do not fill the fuel
tank. Before you add the fuel, stop the engine. Let the engine cool for several minutes.
See the engine manufacturer’s instructions for
the type of fuel and oil to use. Before you use
the unit, read the information on safety, operation, maintenance, and storage.
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NOTE: Engine horsepower ratings may vary
by engine adjustments, manufacturing variances, altitude, atmospheric conditions, fuel
and maintenance.
Add Oil To The Engine (Figure 3)
NOTE: Engine may already contain some
residual oil. Check frequently when filling
the crankcase. DO NOT overfill.
The snow thrower was shipped with a container
of 5W30 motor oil. This oil must be added to the
engine before operating.
1. Make sure the unit is level.
2. Remove the oil fill cap/dipstick (1) and fill
the crankcase to “FULL” line on dipstick. DO
NOT overfill.
3. Tighten the oil fill cap/dipstick (1) securely
each time you check the oil level.
NOTE: Synthetic oil can assist with starting
in extreme cold temperatures. Synthetic
5W30 is acceptable for all temperatures. DO
NOT mix oil with petrol.
Add Petrol To The Engine
This engine is certified to operate on petrol. Exhaust Emission Control System: EM (Engine
Modifications).
WARNING: Alcohol blended fuels
(called gasohol or those 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: To avoid engine problems, the fuel
system must be emptied before storage for
30 days or longer. Start the engine and let it
run until the fuel lines and carburetor are
empty. Use fresh fuel next season. See the
Storage section in this manual for additional
information.
Fill the fuel tank only with a fresh, clean, unleaded regular, unleaded premium, or reformulated automotive petrol with a minimum of 85
octane. DO NOT use leaded petrol. Make sure
that the container you pour the petrol from is
clean and free from rust or other foreign particles. Never use petrol that may be stale from
long periods of storage in the container.
Before You Operate
Before you operate your new snow thrower,
please review the following checklist:
G Make sure all assembly instructions have
been completed.
G Make sure the discharge chute rotates freely.
G Make sure that no loose parts remain in the
carton.
As you learn how to properly use the snow
thrower, pay extra attention to the following important items.
G Make sure the engine oil is at the proper
level. For the type engine oil to use, see the
Engine Manufacturer’s manual.
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G Make sure gas tank is filled properly with
clean, fresh, unleaded petrol with a minimum
of 85 octane.
G Become familiar with the location of all
controls and understand their function.
G Before starting the engine, make sure all
controls operate correctly.
OPERATION
NOTE: Illustrations are located on page 2
and on pages 3 through 6.
CAUTION: Use only attachments and accessories approved by the manufacturer of the
snow thrower (such as tire chains, electric
start kits, etc.).
Know Your Snow Thrower (Figure 1)
Read this Instruction Book and safety rules before operation the snow thrower. Compare the
illustration with your snow thrower to familiarize
yourself with the location of various controls and
adjustments.
How To Control
The Discharge Of The Snow
WARNING: Never direct the discharge of snow toward bystanders.
WARNING: Always stop the engine
before unclogging the discharge
chute or the auger housing and be-
fore leaving the snow thrower.
1. (Figure 1) Turn the crank assembly (2) to
change the discharge direction of the snow.
2. (Figure 6) Loosen the wing knob (1) on the
chute deflector (2).
3. Move the chute deflector (2) up for more
distance or down for less distance.
4. Tighten the wing knob (1).
How To Throw Snow (Figure 1)
1. Engage the auger drive lever (5).
2. To stop throwing snow, release the auger
drive lever (5).
WARNING: The operation of any
snow thrower can result in foreign
objects being thrown into the eyes,
which can result in severe eye damage.
Always wear safety glasses or eye shields
while operating the snow thrower. We recommend standard safety glasses or use a
wide vision safety mask over your glasses.
How To Stop Discharging Snow
(Figure 1)
1. To stop discharging snow, release the auger
drive lever (5).
NOTE: If the snow thrower continues to
slowly move forward, see “How To Adjust
The Auger Control Cable” in the Maintenance Section.
2. To stop the engine, push the stop switch (8)
to the off position.
CAUTION: To stop the engine, do not move
the choke control to CHOKE position. Backfire or engine damage can occur.
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2. To go forward, raise the handle (2) to allow
the rubber auger blades to contact the
ground. Maintain a firm hold on the handle
(2) as the snow thrower starts to move forward. Guide the snow thrower by moving the
handle (2) either left or right. Do not attempt
to push the snow thrower.
3. To stop, release the auger drive lever (5).
NOTE: If the auger continues to rotate, see
“How To Adjust The Auger Control Cable” in
the Maintenance section.
Before Starting The Engine
1. Before you service or start the engine, familiarize yourself with the snow thrower. Be
sure you understand the function and location of all controls.
2. Make sure that all fasteners are tight.
3. Make sure the fuel tank is filled with the correct mixture of gasoline and oil.
4. Become familiar with the location of all controls and understand their function.
5. Before starting the engine, make sure all
controls operate corrently.
How To Stop The Engine (Figure 1)
To stop the engine, push the stop switch (8) to
the off position.
CAUTION: To stop the engine, do not move
the choke control to CHOKE position. Backfire or engine damage can occur.
How To Start The Engine (Figure 1)
Make sure that the engine oil is at FULL mark on
dipstick. The engine is equipped with a recoil
starter. Before starting the engine, make certain
that you have read the following information.
If engine floods, set the choke to the OPEN/
RUN position and crank until the engine starts.
WARNING: Rapid retraction of the
starter cord (kickback) will pull
your hand or arm toward the engine faster than you can let go of the starter cord.
S When starting the engine, slowly pull
the starter cord until resistance is felt.
Then, rapidly pull the starter cord.
S Make sure components; such as impel-
lors, pulleys or sprockets, are securely
attached.
How To Start A Cold Engine (Figure 1)
1. (Figure 1) Push the stop switch (8) to the
ON position.
2. When starting the engine, do not engage the
auger drive lever.
3. Move the choke control (14) to the FULL
choke position.
4. Push the primer button (9) as specified below. Remove finger from the primer button
(9) between primes.
S Push two times if temperature is 15° F
(−9° C) or higher.
S Push four times if temperature is below
15° F (−9° C).
5. (Figure 4) Slowly pull the recoil starter han-
dle (1) until resistance is felt and then pull
rapidly to start the engine. Do not allow the
recoil starter handle (1) to snap back. Slowly return the recoil starter handle (1).
NOTE: In temperatures below 0F, allow
the engine to warm up for several minutes
before blowing snow.
WARNING: Never run the engine
indoors or in enclosed, poorly ven-
tilated areas. Engine exhaust contains carbon monoxide, an odorless and
deadly gas. Keep hands, feet, hair and
loose clothing away from any moving parts
located on the engine or the snow thrower.
The temperature of muffler and nearby
areas may exceed 150°F. Avoid these
areas.
How To Start A Warm Engine (Figure 1)
If an engine has been running and is still warm,
leave the choke control (14) in the off position
and do not push the primer button (9). If the
engine fails to start, follow the instructions “How
To Start A Cold Engine”.
NOTE: Do not use the primer button (9) to
start a warm engine.
How To Start An Engine With A Frozen Electric
Starter (Figure 1)
If the starter is frozen and will not turn the engine, follow the instructions below.
1. Pull out the recoil starter handle (12) as far
as possible.
2. Quickly release the recoil starter handle
(12). Allow the recoil starter handle (12) to
snap back against the recoil starter.
If the engine still fails to start, repeat the two previous steps until the engine starts. Then, continue with the directions “How To Start A Cold
Engine”.
To help prevent the possible freeze−up of the
recoil starter and of the engine controls, proceed
as follows after each snow removal job.
1. Before storing, run the snow thrower a few
minutes to prevent freeze−up of the auger/
impeller.
2. With engine off, allow engine to cool for several minutes.
3. Pull starter rope very slowly until resistance
is felt, then stop. Allow the starter rope to recoil. Repeat three times.
4. With the engine not running, wipe all snow
and moisture from the carburetor cover in
area of controls and levers. Also, move the
choke control and starter handle several
times.
How To Remove Snow or Debris From
The Auger Housing
(Figure 1)
WARNING: Do not attempt to remove snow or debris that may become lodged in auger housing
without taking the following precautions.
1. Release the auger drive lever (5).
2. To stop the engine, move the stop switch
(8) to the stop position.
3. Disconnect the spark plug wire.
4. Do not place your hands in the auger hous-
ing (22) or the discharge chute (4). Use a
pry bar to remove any snow or debris.
Snow Throwing Tips
1. This snow thrower will propel itself forward
when the handle is raised enough to cause
the auger blades to contact the ground. The
auger should stop when auger control bar is
released. If it does not stop, see “How To Adjust The Auger Control Cable” in the adjustment section.
2. Most efficient snow throwing is accomplished
when the snow is removed immediately after
if falls.
CAUTION: Do not overload the machine capacity by attempting to clear snow at too fast
a rate.
3. For complete snow removal, slightly overlap
each previous path.
4. Whenever possible, discharge the snow
down wind.
5. The distance the snow will be discharged
can be adjusted by moving the discharge
chute deflector. Raise the deflector for more
distance or lower the deflector for less distance.
6. In windy conditions, lower the chute deflector
to direct the discharged snow close to the
ground where it is less likely to blow into unwanted areas.
7. For safety and to prevent damage to the
snow thrower, keep the area to be cleared
free of stones, toys and other foreign objects.
8. Do not use the auger propelling feature when
clearing gravel or crushed rock driveways.
Move the handle down to slightly raise the
auger.
9. The forward speed of the snow thrower is
dependent on the depth and weight of the
snow. Experience will establish the most effective method of using the snow thrower under different conditions.
10.After each snow throwing job, allow the engine to run for a few minutes. The snow and
accumulated ice will melt off the engine.
11.Clean the snow thrower after each use.
12.Remove ice, snow and debris from the entire
snow thrower. Flush with water to remove all
salt or other chemicals. Wipe snow thrower
dry.
Dry And Average Snow
1. Snow up to eight inches deep can be removed rapidly and easily by walking at a
moderate rate. For snow or drifts of a greater
depth,slow your pace to allow the discharge
chute to dispose of the snow as rapidly as
the auger receives the snow.
2. Plan to have the snow discharged in the direction the wind is blowing.
Wet Packed Snow
Move slowly into wet, packed snow. If the wet,
packed snow causes the auger to slow down or
the discharge chute begins to clog, back off and
begin a series of short back and forth jabs into
the snow. These short back and forth jabs, four
to six inches, will “belch” the snow from the
chute.
Snow Banks And Drifts
In snow of greater depth than the unit, use the
same “jabbing” technique described above. Turn
the discharge chute away from the snow bank.
More time will be required to remove snow of
this type than level snow.
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MAINTENANCE CHART
CUSTOMER RESPONSIBILITIES
SERVICE RECORDS
Fill in dates as you
complete regular
service.
Before
Each
Use
First
2
Hours
Every
5
Hours
Every
10
Hours
Every
25
Hours
Each
Season
Before
Storage
SERVICE DATES
Check And Tighten All Screws and Nuts
√ √
Check Spark Plug
√ √
Check Drive Belt
√
Check Fuel
√
Drain Fuel
√
Lubricate Chute Control Flange
√
Check Adjustment of Auger Control Cable
√
Auger Drive Belt
√
MAINTENANCE
NOTE: Illustrations are located on page 2
and on pages 3 through 6.
Use the following maintenance section to keep
your unit in good operating condition. All the
maintenance information for the engine is in the
engine manufacturer’s instructions. Before you
start the engine, read this book.
WARNING: Before you make an inspection, adjustment (except
carburettor), or repair, disconnect
the wire from the spark plug.
General Recommendations
The warranty on this snow thrower does not cover items that have been subjected to operator
abuse or negligence. To receive full value from
the warranty, the operator must maintain the
snow thrower as instructed in this manual.
Some adjustments must be made periodically to
properly maintain the snow thrower.
After Each Use
G Check for any loose or damaged parts.
G Tighten any loose fasteners.
G Check and maintain the auger.
G Check controls to make sure they are
functioning properly.
G If any parts are worn or damaged, replace
immediately.
G Check all safety and instruction decals and
labels. Replace any decals or labels that are
missing or cannot be clearly read.
All adjustments in the Maintenance section of
this manual should be checked at least once
each season.
How To Remove The Top Cover
(Figure 8)
1. Remove the five screws (1) from the top
cover (2).
2. Remove the top cover (2).
3. To install the top cover (4), reverse the
above steps.
Lubrication
Before Storage (Figure 8)
1. Lubricate the clute control flange (7). Apply
a clinging type of grease such as Lubriplate.
How To Adjust The Auger Control Cable
The auger control cable is adjusted at the factory. During normal use, the auger control cable
can become stretched and the auger drive lever
will not properly engage or disengage the auger.
1. (Figure 12) Loosen the nut (1) that holds the
cable tension spring (2).
2. Slide the cable tension spring (2) toward
the rear of the unit until all cable slack is removed.
NOTE: The auger control cable is properly
adjusted when the free cable slack is removed and there is no tension on the
idler arm.
3. Tighten the nut (1) that holds the cable ten-
sion spring (2).
If belt stretch has occured, move the end the
auger control cable to the outside hole as follows:
1. (Figure 12) Loosen the nut (1) that holds the
cable tension spring (2).
2. Move the cable tension spring (2) toward
the front of the unit to achieve maximum
cable slack.
3. (Figure 11) Remove the upper end of the
auger control cable (3) from the auger
drive lever (4).
4. Install the auger control cable (3) in the
hole shown in Figure 11.
5. (Figure 12) Slide the cable tension spring
(2) toward the rear of the unit until all cable
slack is removed.
NOTE: The auger control cable (3) is
properly adjusted when the free cable
slack is removed and there is no tension
on the idler arm.
6. Tighten the nut (1) that holds the cable ten-
sion spring (2).
7. To check the adjustment, start the snow
thrower. Make sure the auger does not rotate
when the auger drive lever is released.
How To Remove The Top Cover
(Figure 10)
There are no adjustments under the top cover
(1). To clean the engine cooling system, follow
the steps below to remove the top cover (1).
1. Remove screws (2) that attach the rod support clamp the the top cover (1). Pivot the
crank assembly rod (3) up and lay on unit.
2. Remove screws (4).
3. Remove attachment screws (5).
4. Remove the top cover (1).
5. To install the top cover (1), reverse the
above steps.
How To Remove The Belt Cover
(Figure 9)
1. Remove the screws (1) and nuts (2) from
the belt cover (3).
2. Remove attachment screw (4) from the rear
of the belt cover (3).
3. Remove the belt cover (3) from the unit.
4. To install the belt cover (3), reverse the
above steps.
NOTE: The belt cover (3) has belt guides
moulded onto the inside of the belt cover (3).
When you install the belt cover (3), engage
the auger drive lever to tighten the belt
against the pulley. This will provide adequate
clearance for the belt guides when installing
the belt cover (3).
How To Replace The Auger Drive Belt
The drive belt is of special construction and
must be replaced with an original factory replacement belt available from your nearest authorized service center.
If the auger drive belt is damaged, the snowthrower will not discharge snow and will not
move forward. Replace the damaged belt as
follows:
1. Disconnect the spark plug wire.
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1740265
2. Remove the belt cover. See “How To Remove The Belt Cover”.
3. Note the path of the auger drive belt (1). For
assistance, a diagram decal is provided.
4. (Figure 14) Remove the belt guide screw
(2) and the belt guide (3). To remove the
belt guide (3), rotate the belt guide (3)
down.
5. (Figure 15) Remove the idler screw (4) and
idler pulley (5) from the idler arm (6).
6. (Figure 16) Remove the auger drive belt (1)
from the engine pulley and pull through side
of motor box.
7. (Figure 17) To remove the auger drive belt
(1) from the impeller pulley (7), move the
idler arm to the engaged position. This will
provide clearance (8) between the impeller
pulley (7) and the brake arm (9) to remove
the auger drive belt.
8. To install a new auger drive belt (1), reverse
the above steps.
9. Check the adjustment of the auger drive
cable. See “Adjust Auger Control Cable”.
How To Remove The Auger
1. Remove the belt cover. See “How To Remove The Belt Cover”.
2. Remove the auger drive belt. See “How To
Replace The Auger Drive Belt”.
3. (Figure 18) Remove the auger pulley (1)
from the auger shaft (threads are left hand;
turn clockwise to remove).
4. To keep the auger (6) from rotating, set a
2”x4” piece of wood on the center paddle
(3) to secure auger (6).
5. Remove bolts (4), washer (5), and nuts (2)
from front of right cover (7).
6. Remove screw (8) from back of right cover
(7).
7. Remove bolts (9) and nuts (10).
8. (Figure 19) Slide the auger (6) out of the
right side of the auger housing (11).
9. Slide the auger (6) out of the bearing on the
left side of the auger housing (11).
10.To install auger (6), reverse the above steps.
Lubrication
How To Check The Engine Oil (Figure 3)
Check the oil level before starting the engine
and after each eight (8) hours of continuous use.
1. Make sure the unit is level.
2. Remove the oil fill cap/dipstick (1) and fill
the crankcase to “FULL” line on dipstick. DO
NOT overfill.
3. Tighten the oil fill cap/dipstick (1) securely
each time you check the oil level.
NOTE: Synthetic oil can assist with starting
in extreme cold temperatures. Synthetic
5W30 is acceptable for all temperatures. DO
NOT mix oil with petrol.
How To Change The Engine Oil
Change the engine oil every fifty (50) hours or at
least once a year if the snow thrower is not used
for fifty (50) hours.
To change the engine oil, the engine must be
tilted forward and the oil drained from the oil fill
tube. Change oil when the engine is warm.
1. (Figure 5) Lift the rear of the snowthrower
and tilt the unit forward. In the correct position, the snowthrower will be setting on the
front of the auger housing.
2. Put an oil drain pan (1) under the oil fill
tube (2).
3. Carefully remove the oil fill cap/dipstick. Oil
will begin to flow into the oil drain pan (2).
4. After all the oil has drained from the engine,
set the snowthrower in the upright operating
position.
5. (Figure 3) Fill the engine with S.A.E. 5W30
oil. Make sure the oil reaches the FULL mark
on the oil fill cap/dipstick. DO NOT OVERFILL.
NOTE: Synthetic oil can assist with starting
in extreme cold temperatures. Synthetic
5W30 is acceptable for all temperatures. DO
NOT mix oil with petrol.
How To Replace The Spark Plug
(Figure 20)
NOTE: This spark ignition system meets all
requirements of the Canadian Interference−
Causing Equipment Regulations.
NOTE: This engine complies with all current
Australian and New Zealand limitations electromagnetic interference.
Check the spark plug (1) every twenty-five (25)
hours. Replace the spark plug (1) if the electrodes are pitted or burned, if the porcelain is
cracked, or every 100 hours of use.
1. Make sure the spark plug (1) is clean. Clean
the spark plug (1) by carefully scraping the
electrodes (do not sand blast or use a wire
brush).
2. Check the spark plug (1) gap with a feeler
gauge (2) and reset gap to 0.030” if necessary..
3. Before installing the spark plug (1), coat the
threads lightly with oil for easy removal.
Tighten the spark plug (1) to a torque of 15
foot-pounds.
How To Prepare The Snow Thrower For
Storage
WARNING: Do not remove petrol
while inside a building, near a fire,
or while you smoke. Petrol fumes
can cause an explosion or a fire.
If the snow thrower is to be stored for an extended period, refer to the engine manufacturer’s operating manual (included with some
models) for important maintenance or storage
details.
1. Drain the fuel tank.
2. Let the engine run until it is out of gasoline.
3. Never store the snow thrower with fuel in the
tank inside a building where ignition sources
are present such as hot water and space
heaters, clothes dryers, and the like. Allow
the engine (motor) to cool before storing in
any enclosure.
4. Drain the oil from the warm engine. Fill the
engine crankcase with new oil.
5. Remove the spark plug from the cylinder.
Pour one ounce of oil into the cylinder. Slowly pull the recoil−start grip so that the oil will
protect the cylinder. Install a new spark plug
in the cylinder.
6. Thoroughly clean the snow thrower.
7. Lubricate all lubrication points. See the Main-
tenance section.
8. Be sure that all nuts, bolts and screws are
securely fastened. Inspect all visible moving
parts for damage, breakage and wear. Replace if necessary.
9. Cover the bare metal parts of the blower
housing and auger with spray rust preventative lubricant.
10.Put the unit in a building that has good ven-
tilation.
11.If the machine must be stored outdoors,
block up the snow thrower to be sure the entire machine is off the ground.
12.Cover the snow thrower with a suitable pro-
tective cover that does not retain moisture.
Do not use plastic.
How To Order Replacement Parts
The replacement parts are shown either on the
back pages of this Instruction Book or in a
separate Parts List Book.
Use only manufacturer’s authorized or approved
replacement parts. The letter placed on the end
of the part number denotes the type of finish for
the part, C for chrome, Z for zinc, a PA for
purchased assembly. It is important that you
include this when ordering a part. Do not use
attachments or accessories not specifically
recommended for this unit. In order to obtain
proper replacement parts you must supply the
model number (see nameplate).
Replacement parts, except for the engine, transmission, transaxle or differential, are available
from the store where the mower was purchased
or a service shop recommended by the store.
Warranty service is available only through Authorized Service Dealers. Locate your nearest dealer
in our locator map at www.murray.com.
Replacement parts for the engine, transaxle, or
transmission, are available from the
manufacturer’s authorized service center found
in the yellow pages of the telephone directory.
Also, see the individual engine or transmission
warranties to order replacement parts.
When ordering the following information is
required:
(1) The Model Number
(2) Serial Number
(3) Part Number
(4) Quantity
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