Operator’s Manual
Snow Thrower
Model H660G
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered,
brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state
laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the
above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply
on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service
department, P.O. Box 361131 Cleveland, Ohio 44136-9722.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-9722
769-00814.
(6/2003)
FORM NO
.
PRINTED IN U.S.A.
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SECTION 1: IMPORTANT SAFE OPERATION PRACTICES
This symbol points out important safety instructions, which if not followed, could endanger the personal
safety and/or property of yourself and others. Read and follow all instructions in this manual before
attempting to operate this machine. Failure to comply with these instructions may result in personal
injury. When you see this symbol—heed its warning.
WARNING: Engine Exhaust, some of its constituents, and certain vehicle components
contain or emit chemicals known to the State of California to cause cancer, birth defects or
other reproductive harm.
DANGER: This machine was built to be operated according to the rules for safe operation in this
manual. As with any type of power equipment, carelessness or error on the part of the operator can
result in serious injury. This machine is capable of amputating hands and feet and throwing objects.
Failure to observe the following safety instructions could result in serious injury or death.
7. Never attempt to make any adjustments while engine is
running, except where specifically recommended in the
1. Read, understand, and follow all instructions on the
operator’s manual.
TRAINING
machine and in the manual(s) before attempting to
8. Let engine and machine adjust to outdoor temperature
assemble and operate. Keep this manual in a safe place
before starting to clear snow.
for future and regular reference and for ordering
replacement parts.
9. To avoid personal injury or property damage use extreme
care in handling gasoline. Gasoline is extremely
2. Be familiar with all controls and their proper operation.
flammable and the vapors are explosive. Serious
Know how to stop the machine and disengage them
personal injury can occur when gasoline is spilled on
quickly.
yourself or your clothes, which can ignite. Wash your skin
3. Never allow children under 14 years old to operate this
and change clothes immediately.
machine. Children 14 years old and over should read and
a. Use only an approved gasoline container.
understand the operation instructions and safety rules in
b. Extinguish all cigarettes, cigars, pipes and other
this manual and should be trained and supervised by a
sources of ignition.
parent.
c. Never fuel machine indoors.
4. Never allow adults to operate this machine without
d. Never remove gas cap or add fuel while the
proper instruction.
engine is hot or running.
5. Thrown objects can cause serious personal injury. Plan
e. Allow engine to cool at least two minutes before
your snow-throwing pattern to avoid discharge of material
refueling.
toward roads, bystanders and the like.
f. Never over fill fuel tank. Fill tank to no more than
6. Keep bystanders, helpers, pets and children at least 75
½ inch below bottom of filler neck to provide space
feet from the machine while it is in operation. Stop
for fuel expansion.
machine if anyone enters the area.
g. Replace gasoline cap and tighten securely.
7. Exercise caution to avoid slipping or falling, especially
h. If gasoline is spilled, wipe it off the engine and
when operating in reverse.
equipment. Move machine to another area. Wait 5
minutes before starting the engine.
i. Never store the machine or fuel container inside
PREPARATION
where there is an open flame, spark or pilot light
1. Thoroughly inspect the area where the equipment is to
(e.g. furnace, water heater, space heater, clothes
be used. Remove all doormats, newspapers, sleds,
dryer etc.).
boards, wires and other foreign objects, which could be
j. Allow machine to cool at least 5 minutes before
tripped over or thrown by the auger/impeller.
storing.
2. Always wear safety glasses or eye shields during
operation and while performing an adjustment or repair to
OPERATION
protect your eyes. Thrown objects which ricochet can
cause serious injury to the eyes.
1. Do not put hands or feet near rotating parts, in the auger/
3. Do not operate without wearing adequate winter outer
impeller housing or discharge chute. Contact with the
garments. Do not wear jewelry, long scarves or other
rotating parts can amputate hands and feet.
loose clothing, which could become entangled in moving
2. The auger/impeller clutch lever is a safety device. Never
parts. Wear footwear which will improve footing on
bypass its operation. Doing so makes the machine
slippery surfaces.
4. Use a grounded three-wire extension cord and
unsafe and may cause personal injury.
3. The clutch levers must operate easily in both directions
and automatically return to the disengaged position when
5. Adjust collector housing height to clear gravel or crushed
released.
4. Never operate with a missing or damaged discharge
6. Disengage all clutch levers before starting the engine.
chute. Keep all safety devices in place and working.
receptacle for all units with electric start engines.
rock surfaces.
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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.
6. Do not operate machine while under the influence of
alcohol or drugs.
MAINTENANCE AND STORAGE
1. Never tamper with safety devices. Check their proper
operation regularly. Refer to the maintenance and
adjustment sections of this manual.
2. Before cleaning, repairing or inspecting machine
disengage all clutch levers and stop engine. Wait until the
auger/impeller come to a complete stop. Disconnect the
spark plug wire and ground against the engine to prevent
unintended starting.
3. Check bolts and screws for proper tightness at frequent
intervals to keep the machine in safe working condition.
Also, visually inspect machine for any damage.
4. Do not change the engine governor setting or over-speed
the engine. The governor controls the maximum safe
operating speed of the engine.
5. Snow thrower shave plates and skid shoes are subject to
wear and damage. For your safety protection, frequently
check all components and replace with original
equipment manufacturer’s (OEM) parts only. “Use of
parts which do not meet the original equipment
specifications may lead to improper performance and
compromise safety!”
6. Check clutch controls periodically to verify they engage
and disengage properly and adjust, if necessary. Refer to
the adjustment section in this operator’s manual for
instructions.
7. Maintain or replace safety and instruction labels, as
necessary.
8. Observe proper disposal laws and regulations for gas,
oil, etc. to protect the environment.
9. Prior to storing, run machine a few minutes to clear snow
from machine and prevent freeze up of auger/impeller.
10. Never store the machine or fuel container inside where
there is an open flame, spark or pilot light such as a water
heater, furnace, clothes dryer etc.
7. Muffler and engine become hot and can cause a burn. Do
not touch.
8. Exercise extreme caution when operating on or crossing
gravel surfaces. Stay alert for hidden hazards or traffic.
9. Exercise caution when changing direction and while
operating on slopes.
10. Plan your snow-throwing pattern to avoid discharge
towards windows, walls, cars etc. Thus, avoiding
possible property damage or personal injury caused by a
ricochet.
11. Never direct discharge at children, bystanders and pets
or allow anyone in front of the machine.
12. Do not overload machine capacity by attempting to clear
snow at too fast of a rate.
13. Never operate this machine without good visibility or
light. Always be sure of your footing and keep a firm hold
on the handles. Walk, never run.
14. Disengage power to the auger/impeller when
transporting or not in use.
15. Never operate machine at high transport speeds on
slippery surfaces. Look down and behind and use care
when in reverse.
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.
17. Disengage all clutch 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 discharge chute, making any
adjustments, or inspections.
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 discharge
chute while engine is running. Shut off engine and remain
behind handles until all moving parts have stopped
before unclogging.
11. Always refer to the operator’s manual for proper
instructions on off-season storage.
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. The
safety labels are shown below for your reference.
19. Use only attachments and accessories approved by the
manufacturer (e.g. wheel weights, tire chains, cabs etc.).
20. If situations occur which are not covered in this manual,
use care and good judgment. Contact your dealer or
telephone 1-800-800-7310 for assistance and the name
of your nearest servicing dealer.
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SECTION 2: ASSEMBLING YOUR SNOW THROWER
Loose Parts
The augers are secured to the auger shaft with two
shear bolts and hex lock nuts. If you hit a foreign object
or ice jam, the snow thrower is designed so that the
Upper
Shift Rod
Shift Rod
bolts may shear. Two replacement shear bolts and nuts
are provided for your convenience. Store in a safe place
until needed. See Figure 1.
Connector
Lower
Shift Rod
Shear Bolts
Hex Lock
Nuts
Wing Nuts
Figure 1
Assembly
Figure 3
WARNING: Disconnect spark plug wire
and ground it against the engine to prevent
unintended starting.
•
Slide the connector down over the end of the lower
shift rod. See Figure 3. Tap the connector until it
locks on the lower shift rod.
NOTE: All references to right or left side of the snow
thrower are determined from behind the unit in the
operating position. The “operator’s position” is defined
as standing directly behind the snow thrower, facing the
handle panel.
If the connector is not properly assembled, the shift rod
will pivot and you will not be able to change speeds or
change directions.
•
Thread the jam nuts all the way up each of the “Z”
fittings, toward the handle panel. See Figure 4.
Handle
•
Remove the lower two plastic wing knobs, cupped
washers and carriage bolt (eyebolt on the left side)
from the lower handle. See Figure 2.
Control Lever
Panel
Lower
Handle
Handle
Panel
“Z”
Fitting
Jam Nut
Upper Handle
Cable Coupling End
Wing Nuts,
Washers, & Bolts
Make Sure Cable
Is Straight
Figure 2
Figure 4
•
•
•
Raise the upper handle assembly until it locks over
the lower handle. See Figure 3.
•
•
Make certain all cables are in the grooves of the
cable roller guides located in the lower rear of the
unit, one on each side.
Thread the coupling end of the cable onto the
threaded portion of the “Z” fitting until the rubber
bumper (located on the underside of the control
lever) only lightly contacts the upper handle.
Observe the lower rear area of the snow thrower to
be sure both cables are aligned with roller guides.
Secure the upper handle and lower handle with the
two plastic wing knobs, cupped washers and
carriage bolt (eyebolt on the left side) previously
removed. See Figure 3.
5
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IMPORTANT: The cable should have very little slack, but
should NOT be tight. An overtightened cable may
prohibit the auger and drive from disengaging.
•
•
•
Unwrap the headlight wire, which is attached to the
headlight beneath the handle panel.
Wind the headlight wire around the right handle
until excess slack is removed.
Plug the wire from the headlight into the wire lead
coming from the right side of the engine, beneath
the fuel tank. See Figure 6.
WARNING: Over-tightening the cable may
prohibit the auger and drive from disengaging
and compromise the safety of the snow
thrower. Do NOT overtighten the cable.
Lower Handle
•
Once properly adjusted, tighten the jam nut against
the coupling end of the cable to lock it in position.
Lamp Wire
Refer to Auger Control Test on page 9 prior to operating
your snow thrower. Read and follow all instructions
carefully and perform all adjustments to verify your
snow thrower is operating safely and properly.
Alternator Lead
•
If not already attached, slip the cables that run from
the handle panel to the chute into the cable guide
located on top of the engine. See Figure 5.
Cable Guide
Figure 6
Figure 5
SECTION 3: KNOW YOUR SNOW THROWER
Traction / Auger Control Lock
This same control also locks the auger control so you
can turn the chute directional control without
WARNING: Be familiar with all controls
and their proper operation. Know how to stop
the machine and disengage them quickly.
interrupting the snow throwing process. If the auger
control is engaged with the traction control engaged,
the operator can release the auger control (on the left
handle) and the augers will remain engaged. Release
the traction control to stop both the augers and wheel
drive (auger control must also be released).
Shift Lever
The shift lever is located in the center of the handle
panel. The shift lever may be moved into one of eight
positions. Run engine with throttle in the fast position.
Use the shift lever to determine ground speed.
Forward: There are six speeds. Position one (1) is the
slowest. Position six (6) is the fastest.
Chute Directional Control
The chute directional control is located on left hand side
of the snow thrower.To change the direction in which
snow is thrown, rotate chute directional control as
follows:
Reverse: There are two reverse (R) speeds R1 and R2.
The “R2” closest to the operator (all the way back) is the
faster of the two.
•
•
Clockwise to discharge to the left.
Counterclockwise to discharge to the right.
Auger/Traction Control
The auger control is located on the left handle. Squeeze
the control to engage the augers; release to stop the
augers. The traction control must also be released.
Chute Tilt Control
The distance snow is thrown can be changed by
adjusting the angle of the chute assembly. Move the
chute tilt control forward to decrease the distance,
toward the rear to increase. See Figure 7.
The traction control is located on the right handle.
Squeeze the control to engage the wheel drive.
Release to stop.
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Shift Lever
Chute Tilt
Control
Traction Control /
Clean-out
Tool
Auger Control Lock
Heated Handles Switch
Headlight
Auger Drive Control
Discharge
Chute
Spark Plug
Choke
Primer
Chute Directional
Control
Recoil Starter
Handle
Closed
Ignition Key
Skid Shoe
Open
Auger
Fuel Shut-Off Valve
Throttle Control
Figure 7
Heated Handles Switch
Ignition Key
The heated handles switch is located on the right side
of the snow thrower handle panel. To activate the
heated handles, toggle the switch to the right to
generate heat within the handles. Toggle the heated
handles switch to the left into the OFF position after
using the snow thrower.
The ignition key must be inserted in the switch in order
for the engine to start. Remove the ignition key when
the snow thrower is not in use.
NOTE: Do NOT “turn” the ignition key in an attempt to
start the engine. Doing so may cause it to break.
The heated handles are a compliment to, not a
substitute for, proper cold weather outerwear for hands.
It is recommended that the user wear adequate winter
protection for hands (like gloves/mittens) when
operating this snow thrower.
Fuel Shut-Off Valve (optional equipment)
On models so equipped, the fuel shut-off valve, located
under fuel tank, controls fuel-flow from the gas tank.
See Figure 7.
Throttle Control
Headlight
The headlight is on whenever the engine is running.
The throttle control is located on the engine. It regulates
the speed of the engine. See Figure 7.
Chute Clean-Out Tool
Skid Shoe
The position of the skid shoe is determined by the
condition of the ground from where snow has to be
removed. See Figure 7.
WARNING: Never use your hand to clear a
clogged discharge chute. Shut off engine and
remain behind handles until all moving parts
have stopped before unclogging.
The chute clean-out tool (see Figure 7) is designed to
clear a clogged discharge chute. Refer to Operating Your
Snow Thrower on page 10 for detailed instructions on how
to properly use the chute clean-out tool.
NOTE: This item is fastened with a cable tie to the rear
of the Auger Housing at the factory. Cut the cable tie
before operating the snow thrower.
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SECTION 4: OPERATING YOUR SNOW THROWER
Recoil Starter:
Before Starting
•
•
•
Rotate choke knob to FULL choke position (cold
engine start).
WARNING: Read, understand, and follow
all instructions and warnings on the machine
and in this manual before operating.
If engine is warm, place choke in OFF position
instead of FULL.
Push primer button three or four times for cold
engine start. DO NOT use primer to restart a warm
engine after a short shutdown.
•
The spark plug wire was disconnected for safety.
Attach spark plug wire to spark plug before starting.
NOTE: Always cover vent hole in primer button when
pushing. Additional priming may be necessary for first
start if temperature is below 15 degrees Fahrenheit.
Gas And Oil Fill-up
•
At the factory, a plastic cup is inserted inside the
fuel tank’s fill opening (beneath the fuel cap) to
prevent debris from entering the fuel tank during
assembly. Remove and discard this cup before
filling up the tank.
•
•
Grasp starter handle and pull rope out slowly, until it
pulls slightly harder. Let rope rewind slowly.
Pull starter handle rapidly. Do not allow handle to
snap back. Allow it to rewind slowly while keeping a
firm hold on the starter handle.
WARNING: Use extreme care when
handling gasoline. Gasoline is extremely
flammable and the vapors are explosive.
Never fuel machine indoor or while the
engine is hot or running. Extinguish
cigarettes, cigars, pipes and other sources of
ignition.
•
•
Repeat step above until engine starts.
As engine warms up and begins to operate evenly,
rotate choke knob slowly to OFF position. If engine
falters, return to FULL choke, then slowly move to
OFF position.
Electric Starter
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.
Starting Engine
IMPORTANT: Prior to operating your snow
thrower, read, understand and follow ALL
instructions to perform adjustments found
under the heading Auger Control Test on
page 9 of this manual.
WARNING: The electric starter must be
used with a properly grounded three-prong
receptacle at all times to avoid possibility of
electric shock. Follow all instructions carefully
to operate the electric starter.
•
Attach spark plug wire to spark plug. Make certain
the metal loop on end of the spark plug wire (inside
the boot) is fastened securely over the metal tip on
the spark plug. See Figure 8.
•
•
•
Determine that your house wiring is a three-wire
grounded system. Ask a licensed electrician if you
are not certain.
If your home wiring system is not a three-wire
grounded system, do not use this electric starter
under any conditions.
If your home electrical system is grounded, but
a three-hole receptacle is not available, one should
be installed by a licensed electrician before using
the electric starter.
If you have a grounded three-prong receptacle,
proceed as follows:
Connect power cord to switch box on engine. Plug
the other end of power cord into a three-prong 120-
volt, grounded, AC receptacle.
Rotate choke knob to FULL choke position (cold
engine start). If engine is warm, place choke in OFF
position instead of FULL.
Metal Loop
Rubber Boot
Figure 8
•
•
•
Make certain the fuel shut-off valve, if so equipped,
is in the OPEN (vertical) position.
Make certain the auger and traction controls are in
the disengaged (released) position.
Move throttle control up to FAST position. Insert
ignition key into slot. Be certain it snaps into place.
Do not turn key. See Figure 7.
•
•
•
NOTE: Engine will not start unless ignition key is
inserted into ignition slot in carburetor cover. Do not
turn ignition key.
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•
Push primer button two or three times for cold
engine start, making sure to cover vent hole in
primer button when pushing. DO NOT use primer to
restart a warm engine after a short shutdown.
Push starter button to start engine.
When engine starts, release starter button and
move choke gradually to OFF. If engine falters,
move choke immediately to FULL and then
gradually to OFF.
•
•
Squeeze the auger control and the augers will turn.
Release it and the augers will stop.
Squeeze traction control and the snow thrower will
move. Release it and unit will stop. Never move
shift lever without releasing traction control.
•
•
To Engage Augers
•
To engage augers and start throwing snow,
squeeze the auger control against the left handle.
Release to stop the augers.
•
When disconnecting the power cord, always unplug
from the three-prong receptacle first, and then from
the snow thrower.
Auger Control Test
IMPORTANT: Perform the following test before operating
the snow thrower for the first time and at the start of
each winter season.
To Stop Engine
•
To stop engine, remove the ignition key. Do not turn
key. Disconnect the spark plug wire from the spark
plug to prevent accidental starting while equipment
is unattended.
Check the adjustment of the auger control as follows:
•
When the auger control is released and in the
disengaged “up” position, the cable should have
very little slack, but should NOT be tight.
To prevent starter freeze-up:
•
Run engine for a few minutes before stopping to
help dry off any moisture on the engine.
WARNING: Do not over-tighten the cable.
Over-tightening may prevent the auger from
disengaging and compromise the safety of the
snow thrower.
•
Electric Starter: Connect power cord to switch box
on engine, then to 120 volt AC receptacle. With the
engine running, push starter button and spin the
starter for several seconds. The unusual sound
made by spinning the starter will not harm engine or
starter. Disconnect the power cord from receptacle
first, and then from switch box.
•
In a well-ventilated area, start the snow thrower
engine as instructed earlier in this section under the
heading Starting Engine. Make sure the throttle is set
in the FAST position.
•
•
•
Recoil Starter: With engine running, pull starter
rope with a rapid, continuous full arm stroke three
or four times. Pulling the starter rope will produce a
loud clattering sound, which is not harmful to the
engine or starter.
Wipe all snow and moisture from the carburetor
cover in the area of the control levers. Also, move
control levers back and forth several times. Leave
throttle control lever in the STOP or OFF position.
Leave choke control in the FULL choke position.
Remove ignition key and disconnect spark plug
wire. Do not turn key.
•
•
While standing in the operator’s position (behind
the snow thrower) engage the auger.
Allow the auger to remain engaged for
approximately ten (10) seconds before releasing
the auger control. Repeat this several times.
With the engine running in the FAST position and
the auger control lever in the disengaged “up”
position, walk to the front of the machine.
Confirm that the auger has completely stopped
rotating and shows NO signs of motion.
•
•
IMPORTANT: If the auger shows ANY signs of rotating,
immediately return to the operator’s position and shut
off the engine. Wait for all moving parts to stop before
readjusting the auger control cable.
IMPORTANT: Do not lose the ignition key. Keep it in a
safe place. Engine will not start without the ignition key.
•
•
•
To readjust the control cable, loosen the hex jam
nut on the auger control cable “Z” fitting.
Rotate the coupling end of the cable
counterclockwise to provide more slack.
Retighten the hex jam nut. See Figure 9.
To Engage Drive
•
With the engine running near top speed, move shift
lever into one of the five FORWARD positions or
two REVERSE positions. Select a speed
appropriate for the snow conditions that exist. Use
the slower speeds until you are familiar with the
operation of the snow thrower.
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Handle
Panel
Auger Control
Lever
Drift Cutters (Optional Equipment)
Drift cutters should be used when operating the snow
thrower in heavy drift conditions.
On models so equipped, drift cutters are assembled to
the auger housing inverted. Remove the carriage bolts
by unthreading the hex nuts which secure them, and
reinstall the drift cutters in their proper position before
operating the snow thrower. See Figure 10.
“Z”
Fitting
Jam Nut
Make Sure Cable
Is Straight
Figure 9
Drift
Cutter
•
Repeat Auger Control Test to verify proper
adjustment has been achieved.
Carriage Screws/
Hex Nuts
Chute Clean-Out Tool
Figure 10
The chute clean-out tool is conveniently fastened to the
rear of the auger housing with a mounting clip (Refer to
Figure 7). If the discharge chute becomes clogged
during operation, proceed as follows to safely clean the
chute and chute opening:
If your unit is not equipped with drift cutters, contact
Customer Support as instructed on page 2 for
information regarding price and availability.
Snow Thrower Model
Drift Cutter Kit
1. Release both the Auger Control Lever and the
Traction/Auger Control Lock Lever.
All models
OEM-390-679
2. Stop the engine by removing the ignition key.
3. Remove the clean-out tool from the clip which
secures it to the rear of the auger housing.
4. Use the shovel-shaped end of the clean-out tool to
remove any snow and ice in the discharge chute.
Operating Tips
NOTE: Allow the engine to warm up for a few minutes
as the engine will not develop full power until it reaches
operating temperature.
WARNING: Never use your hand to clear a
clogged discharge chute. Shut off engine and
remain behind handles until all moving parts
have stopped before unclogging.
WARNING: The muffler, engine and their
surrounding areas become hot and can cause
a burn. Do not touch.
•
•
Discharge snow downwind whenever possible.
Slightly overlap each previous path.
Set the skid shoes 1/4" below the scraper bar for
normal usage. The skid shoes may be adjusted
upward for hard-packed snow. Adjust downward
when using on gravel or crushed rock.
5. Refasten the clean-out tool to the mounting clip on
the rear of the auger housing, re-start the engine.
6. While standing in the operator’s position (behind
the snow thrower), engage the auger clutch lever
for a few seconds to clear any remaining snow or
ice from the discharge chute before continuing to
clear snow.
•
Avoid possible starter freeze-up. Clean the snow
thrower thoroughly after each use.
Tire Chains (Optional Equipment)
Tire chains may be used whenever extra traction is
needed. Contact Customer Support as instructed on
page 2 for information regarding price and availability.
10
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SECTION 5: MAKING ADJUSTMENTS
Frame Cover
WARNING: NEVER attempt to make any
adjustments while the engine is running,
except where specified in the operator’s
manual.
Tire Pressure (Pneumatic Tires)
•
The tires are over-inflated for shipping purposes.
Before operating, check tire pressure and reduce, if
necessary, to between 15 psi and 20 psi.
NOTE: If the tire pressure is not equal in both tires, the
unit may pull to one side or the other.
Traction Control and Shift Lever
•
To check the adjustment of the traction control and
shift lever, proceed as follows:
Auger
Housing
•
With the engine off, move the shift lever all the way
forward to sixth (6) position. With the traction
control released, push the snow thrower forward.
The unit should move forward freely. Then engage
the traction control grip. Wheels should stop
turning.
Now release the traction control grip, and push the
unit again.
Move the shift lever back to the fast reverse
position, then all the way forward again. There
should be no resistance in the shift lever, and
wheels should keep turning.
If you feel resistance when moving the shift lever or
the wheels stop when they should not, loosen the
jam nut on the traction control cable and unthread
the cable one turn.
If the wheels do not stop when you engage the
traction control grip, loosen the jam nut on the
traction control cable and thread the cable in one
turn. Recheck the adjustment and repeat as
necessary. Tighten the jam nut to secure the cable
when correct adjustment is reached.
Figure 11
•
•
Remove the frame cover underneath the snow
thrower by removing six self-tapping screws.
With the traction control released, there must be
clearance between the friction wheel and the drive
plate in all positions of the shift lever.
•
•
•
With traction control engaged, the friction wheel
must contact the drive plate. See Figure 12.
•
•
Friction
Wheel
Gear Shaft
WARNING: Drain the gasoline out of snow
thrower engine, place a piece of plastic film
under the gas cap to avoid spillage before
beginning the job.
Drive
Plate
To test further for correct adjustment, if necessary,
proceed as follows:
Figure 12
•
Tip the snow thrower forward, allowing it to rest on
the auger housing. See Figure 11.
If adjustment is necessary:
•
•
•
Loosen the jam nut on the traction drive cable and
thread the cable in or out as necessary.
Retighten the jam nut to secure the cable when
correct adjustment is reached.
Reassemble the frame cover.
NOTE: If you placed plastic film under the gas cap, be
certain to remove it before operating the snow thrower.
11
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•
Adjust skid shoes by loosening the four hex nuts
and carriage bolts and moving skid shoes to
desired position. Make certain the entire bottom
surface of skid shoe is against the ground to avoid
uneven wear on the skid shoes. Retighten nuts and
bolts securely.
Shift Rod
To adjust the shift rod, proceed as follows.
•
Remove the hairpin clip and slide the shift rod
connector up, to separate the upper shift rod from
the lower shift rod. See Figure 13.
•
•
Place the shift lever into the sixth (6) position.
Rotate the shift arm clockwise (from the operator’s
position) as far as it will go.
•
Thread the upper shift rod downward until the
elbow on its lower end aligns with the hole found in
the lower shift rod.
Shift Lever
Hairpin Clip
Carriage Bolts
Hex Nuts
Ferrule
Skid Shoe
Figure 14
Flat
Washer
Upper Shift Rod
WARNING: Do not operate this snow
thrower on gravel as loose gravel can be
easily picked up and thrown by the auger
causing injury to the operator and/or damage
to the snow thrower.
Hairpin Clip
Shift Rod
Connector
Lower Shift Rod
Drive Wheels
Shift Arm
Figure 13
The wheels may be adjusted for two different methods
of operation. The adjustment is made by placing the
click pins in one of two different holes on the right side
of the unit. See Figure 15.
•
Reconnect the upper shift rod to the lower shift rod
by reinserting the hairpin clip removed earlier and
sliding the shift rod connector back down into place.
IMPORTANT: Check for correct adjustment of the shift
lever as instructed on page 11, before operating the
snow thrower.
Inside Hole
in Axle
Auger Control
Refer to Auger Control Test on page 9 to adjust the auger
control.
Click Pin
in Outside Hole
Chute Assembly
The distance snow is thrown can be adjusted by
changing the angle of the chute assembly. Move the
chute tilt control forward to decrease the distance,
toward the rear to increase.
Figure 15
One Wheel Driving: Insert the click pin only
through the outside hole of the axle (not the rim) on
the right side of the snow thrower. This position
gives power drive to the left wheel only, making the
unit easier to maneuver.
Skid Shoes
The space between the shave plate and the ground can
be adjusted. For close snow removal, place skid shoes
in the low position. Use middle or high position when
area to be cleared is uneven. See Figure 14.
12
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Both Wheels Driving: Insert the click pin through
the hole in the hub of the rim and the inside hole on
the snow thrower’s right axle. This position is good
for heavy snow as there is power drive in both
wheels.
IMPORTANT: Never operate the snow thrower with the
click pin inserted through both the rim and the outside
hole in the axle. Doing so can result in serious damage
to the drive system.
SECTION 6: MAINTAINING YOUR SNOW THROWER
Auger Shaft
WARNING: Before servicing, repairing or
inspecting, disengage all clutch levers and
stop engine. Wait until all moving parts have
come to a complete stop. Disconnect spark
plug wire and ground it against the engine to
prevent unintended starting.
•
At least once a season, remove shear bolts on
auger shaft. Oil or spray lubricant inside shaft.
Also lubricate the auger bearings at least once a
season. See Figure 17.
Shear Bolts
Lubrication
Engine
•
Refer to the engine manual for maintenance
procedures and instructions.
WARNING: When following instructions in
the engine manual for draining oil, be sure to
protect frame to avoid oil dripping onto
transmission parts.
Gear Shaft
•
Lubricate the gear shaft with a good all-weather
multi-purpose light grease at least once a season or
after every 25 hours of operation.
Bearings
Bearings
Figure 17
IMPORTANT: Keep all grease and oil off friction wheel
and drive plate.
Chute Directional Control
•
The worm gear on the chute directional control
should be greased with multipurpose automotive
grease.
Gear Case
•
The auger gearbox has been filled with grease at
the factory. If disassembled for repairs, lubricate
with 1-1/2 ounces of grease, part no. 737-0168.
Drive and Shifting Mechanism
•
Remove rear cover. Oil any chains, sprockets,
gears, bearings, shafts, and shifting mechanism at
least once a season. Use engine oil or a spray
lubricant. Avoid getting oil on rubber friction wheel
and aluminum drive plate. See Figure 18.
IMPORTANT: Do not overfill the gear case. Damage to
the seals could result. Be sure the vent plug is free of
grease in order to relieve pressure.
Wheels
•
Oil or spray lubricant into bearings at least once a
season. Pull the klick pins and remove wheels,
clean and coat axles with a multipurpose
automotive grease. See Figure 16.
Shift Lever
Chain
Klick Pin
Axle
Avoid oil on
friction wheel and
drive plate
Gear Shaft
13
Figure 18
Figure 16
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hours of operation. The cams can be accessed beneath
the handle panel. Use a multi-purpose automotive
grease.
Traction Control / Auger Control Lock
The cams on the ends of the control rods which
interlock the traction drive and auger drive controls
must be lubricated at least once a season or every 25
SECTION 7: SERVICE
WARNING: Before servicing, repairing, or
inspecting, disengage all clutch levers and
stop engine. Wait until all moving parts have
come to a complete stop. Disconnect spark
plug wire and ground it against the engine to
prevent unintended starting.
Engine
Refer to the separate engine manual packed with your
unit for all engine maintenance procedures.
Carriage
Bolts
Skid Shoe
Augers
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. If the snow thrower hits a
foreign object or ice jam, the snow thrower is designed
so that the bolts may shear.See Figure 17.
Shave Plate
Hex Nuts
Skid Shoe
Figure 19
•
If the augers will not turn, check to see if the bolts
have sheared. Two replacement shear bolts and
hex lock nuts have been provided in the snow
thrower’s hardware pack. When replacing bolts,
spray an oil lubricant into shaft before inserting new
bolts. For future use, order part number 710-0890A
(shear bolt 5/16-18 x 1.5") and 712-0429 (hex lock
nut 5/16-18).
•
•
To remove shave plate, remove carriage bolts, bell
washers and hex nuts which attach it to the snow
thrower housing.
Reassemble new shave plate, making sure heads
of the carriage bolts are to the inside of the housing.
Tighten securely.
IMPORTANT: NEVER replace the auger shear bolts with
standard hex bolts. Any damage to the auger gearbox
or other components as a result of doing so will NOT be
covered by your snow thrower’s warranty.
Belt Replacement
WARNING: Disconnect the spark plug wire
from the spark plug and ground.
Shave Plate and Skid Shoes
Auger Belts
The shave plate and skid shoes on the bottom of the
snow thrower are subject to wear. They should be
checked periodically and replaced when necessary.
•
Remove the plastic belt cover on the front of the
engine by removing the two self-tapping screws.
See Figure 20.
•
To remove skid shoes, remove the four carriage
bolts, bell washers and hex nuts which attach them
to the snow thrower. Reassemble new skid shoes
with the four carriage bolts, bell washers (cupped
side goes against skid shoes) and hex nuts. Make
certain the skid shoes are adjusted to be level. See
Figure 19.
•
•
•
Drain the gasoline from the snow thrower, or place
a piece of plastic under the gas cap.
Tip the snow thrower up and forward so that it rests
on the housing. See Figure 11.
Remove six self-tapping screws from the frame
cover underneath the snow thrower.
14
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Belt
Cover
Friction
Wheel
Self-Tapping
Screws
Support
Bracket
Rear Auger
Belt
Frame
Figure 20
•
Roll the front and rear auger belts off the engine
pulley. See Figure 21.
Front Auger
Pulley
Support
Bracket
Spring
Drive
Belt
Rear Auger
Belt
Auger
Pulley
Auger
Housing
Engine
Pulley
Idler
Spring
Front Auger
Belt
Figure 22
Idler
Pulley
Drive Belt
•
•
Follow steps 1 through 4 of previous instructions.
Pull idler pulley up, and lift belt off engine pulley
and friction wheel disc. See Figure 21.
•
•
Back out the stop bolt until the support bracket
rests on the auger pulley. See Figure 23.
Slip belt between friction wheel and friction wheel
disc. Remove and replace belt. Reassemble
following the instructions in reverse order.
Idler
Pulley
Engine
Pulley
Figure 21
NOTE: The support bracket must rest on the stop bolt
after the new belt has been assembled. See Figure 23.
•
•
Unhook the idler spring from the hex bolt on the
auger housing. See Figure 22.
Back out the stop bolt to allow the belts to slip
between the bolt and auger pulley. See Figure 23.
Friction
Wheel
Disc
Friction Wheel
Drive Belt
NOTE: It may be necessary to loosen the six hex nuts
that fasten the frame to the auger housing.
Stop
Bolt
•
Lift the rear auger belt from the auger pulley, and
slip belt between the support bracket and the auger
pulley. See Figure 22. Repeat this step for front
auger belt.
•
Replace both auger drive belts by following
instructions in reverse order.
Support Bracket
Figure 23
15
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•
Lightly tap the hex nut to dislodge the ball bearing
from the right side of frame. Remove the hex nut
and bell washer from left end of shaft.
Slide the gear shaft to the right and slide the friction
wheel assembly from the shaft.
Remove the four screws from the friction wheel
assembly. Remove the friction wheel rubber from
between the plates. See Figure 25.
Reassemble new friction wheel rubber to the
friction wheel assembly, tightening the four screws
in rotation and with equal force.
Changing Friction Wheel Rubber
The rubber on the friction wheel is subject to wear and
should be checked after 25 hours of operation, and
periodically thereafter. Replace the friction wheel
rubber if any signs of wear or cracking are found as
follows:
•
•
•
•
•
•
•
Drain the gasoline from the snow thrower, or place
a piece of plastic under the gas cap.
Tip the snow thrower up and forward, so that it rests
on the housing. See Figure 11.
Remove the six self-tapping screws from the frame
cover underneath the snow thrower.
Remove the klick pins which secure the wheels,
and remove the wheels from the axle.
•
Plates
Bearing
Using a wrench to hold the shaft, loosen, but do not
completely remove, the hex nut and bell washer on
left end of gear shaft. See Figure 24.
Screws
Hub
Friction Wheel Rubber
Figure 25
•
•
Slide friction wheel assembly back onto the gear
shaft. Be sure to align the pin on the shift rod with
hole in the friction wheel assembly. See Figure 22.
Reassemble gear shaft and the wheels. Reattach
the frame cover.
Hex Nut and
Bell Washer
Chute
Note: The unit is
shown resting on
its auger housing
Auger
Figure 24
SECTION 8: OFF-SEASON STORAGE
If unit is to be stored over 30 days, prepare for storage
as follows:
WARNING: Never store engine with fuel in
tank indoors or in enclosed, poorly ventilated
areas where fuel fumes may reach an open
flame, spark or pilot light as on a furnace,
water heater, clothes dryer, or other gas
appliance.
•
Remove gasoline from carburetor and fuel tank to
prevent gum deposits from forming on these parts
and causing possible malfunction of engine.
Run engine until fuel tank is empty and engine
stops due to lack of fuel.
•
•
WARNING: Drain fuel into an approved
container outdoors, away from an open flame.
Allow engine to cool. Extinguish cigarettes,
cigars, pipes, and other sources of ignition
prior to draining fuel. Fuel left in engine for
extended periods deteriorates and will cause
starting problems.
Drain carburetor by pressing upward on bowl drain,
located below the carburetor cover.
16
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•
•
Remove all dirt from exterior of engine and
equipment.
Follow lubrication recommendations on page 13.
NOTE: Fuel stabilizer is an acceptable alternative in
minimizing the formation of fuel gum deposits during
storage. Do not drain carburetor if using fuel stabilizer.
NOTE: When storing any type of power equipment in
an poorly ventilated or metal storage shed, care should
be taken to rustproof the equipment, especially springs,
cables and all moving parts.
•
•
Wipe equipment with an oiled rag to prevent rust.
Remove spark plug and pour one ounce of engine
oil through spark plug hole into cylinder. Cover
spark plug hole with rag. Crank engine several
times to distribute oil. Replace spark plug.
SECTION 9: TROUBLE SHOOTING GUIDE
Trouble
Possible Cause(s)
Corrective Action
Engine fails to start Fuel tank empty, or stale fuel.
Fill tank with clean, fresh gasoline. Fuel may not last over thirty days
unless a fuel stabilizer is used.
Clean fuel line.
Move switch to ON position
Clean, adjust gap or replace.
Insert key.
Blocked fuel line.
Choke not in ON position
Faulty spark plug.
Key not in switch on engine.
Spark plug wire
Connect spark plug wire.
disconnected.
Primer button not depressed.
Fuel shut-off valve closed
(if so equipped).
Refer to the engine manual packed with your unit.
Open fuel shut-off valve.
Engine runs erratic Unit running on CHOKE.
Blocked fuel line or stale fuel.
Move choke lever to OFF position.
Clean fuel line; fill tank with clean fresh gasoline. Fuel may not last
over thirty days unless a fuel stabilizer is used.
Drain fuel tank. Refill with fresh fuel.
Refer to the engine manual packed with your unit or have carburetor
adjusted by an authorized service dealer.
Water or dirt in fuel system.
Carburetor out of adjustment.
Loss of power
Spark plug wire loose.
Gas cap vent hole plugged.
Exhaust port plugged.
Carburetor not adjusted
properly.
Connect and tighten spark plug wire.
Remove ice and snow from cap. Be certain vent hole is clear.
Clean-see Maintenance section of engine manual.
Refer to the engine manual packed with your unit or have carburetor
adjusted by an authorized service dealer.
Engine overheats
Incorrect fuel mixture.
Drain fuel tank. Refill with proper fuel mixture.
Excessive vibration Loose parts or damaged auger. Stop engine immediately and disconnect spark plug wire. Tighten all
bolts and nuts. Make all necessary repairs. If vibration continues, have
unit serviced by an authorized service dealer.
Unit fails to propel Incorrect adjustment of drive
Adjust drive cable. Refer to Adjustment section of this manual.
itself
cable.
Drive belt loose or damaged.
Discharge chute clogged.
Replace drive belt. Refer to Belt Replacement on page 14.
Stop engine immediately and disconnect spark plug wire. Clean dis-
charge chute and inside of auger housing.
Unit fails to
discharge snow
Foreign object lodged in auger. Stop engine immediately and disconnect spark plug wire. Remove
Incorrect adjustment of drive
cable.
Drive belt loose or damaged.
Shear bolt(s) sheared
object from auger.
Adjust drive cable. Refer to Adjustment section of this manual.
Replace drive belt. Refer to Belt Replacement on page 14.
Replace shear bolt(s)
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer or
call 1-800-800-7310 for the Customer Support Center. Refer to separate engine manual packed with your snow
thrower for more engine related information.
17
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SECTION 10: PARTS LIST
68
57
58
55
27
72
53
70
72
73
80
65
27
71
69
82
64
9
27
68
24
83
74
61
63
59
11
58
67
69
23
27
66
54
49
76
81
56
31
40
77
15
45
78
62
79
60
11
75
52
9
29
51
13
46
13
47
5
8
2
5
14
17
20
24
22
10
14
21
3
11
50
9
40
18
41
16
12
4
1
26
25
31
39
11
15
43
19
9
48
35
37
7
38
28
18
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Model H660G
Ref.
Ref.
No.
Part No.
No.
Part Description
Shift Arm Assembly
Part No.
Part Description
Control Cable
1.
684-0008A
710-0458
710-0449
710-0788
710-0837
710-1880
711-0677
712-0429
712-3068
714-0104
720-0284
725-1757
736-0242
736-0275
736-0451
747-0620A
747-0621
749-0951
749-0952A
749-0953A
750-0963
746-0778
629-0059
710-0262
710-04071
710-0599
710-3015
710-0805
710-0895
712-3027
710-0643
731-0851A
731-1300B
731-1313C
731-04427
736-0159
736-0506
746-0896
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
81.
82.
83.
746-0901
736-0119
732-0746
784-5594
784-5604
629-1094
684-0036A
684-0037B
710-1003
712-0271
712-0693
716-0398
720-0232
725-1672
735-0199A
725-1756
725-1759
736-0509
731-04450
736-0226
747-1136
714-0507
747-0877
784-5680
784-5679
748-0362
748-0363
732-0145
710-0459A
784-5619A
712-0116
732-0193
736-0105
784-5682
784-5681
711-0653
684-0103
2.
Carriage Bolt 5/16-18 x 1.75”
Carriage Bolt 5/16-18 x 2.25”
TT Screw 1/4-20 x 1”
C-Sunk Screw #10-16x 0.625”
Hex Screw 5/16-18 x.75”
Ferrule
Lock Washer 5/16
Torsion Spring
3.
4.
Cable Bracket
5.
Handle: Chute Tilt
Harness Assembly: Upper
Handle Assembly RH
Handle Assembly LH
Special Hex Screw
Hex Sems Nut: 1/4-20
Hex Nut
7.
8.
9.
Hex Lock Nut 5/16-18
Hex Nut 5/16-18
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
31.
35.
37.
38.
39.
40.
41.
43.
45.
46.
Cotter Pin
Handle Knob
Heated Grip
Lock Ring: Toggle Switch
Shift Knob
Belleville Washer
Flat Washer
Lamp Housing
Saddle Washer
Rubber Bumper
Shift Rod: Upper
Toggle Switch: Single Switch
Halogen Lamp: 50W, 12V
Washer
Shift Rod: Lower
Lower Handle
Upper Handle: L Style RH
Upper Handle: L Style LH
Connector: Shift Rod
Z Cable Fitting
Handle Panel
Flat Washer
Headlight Retainer
Cotter Pin: 3/32 x.75
Cam Rod
Light Harness
Carriage Bolt: 5/16-18 x 1.5”
Carriage Bolt: 5.16-18 x 1.0”
TT Screw: 1/4-20 x 0.5”
Hex Screw 1/4-20
Hex Screw: 5/16-18 x 1.5”
Hex Screw AB:1/4-15 x 0.750”
Hex Flange Lock Nut
Hex Screw 5/16-18
Chute Flange Keeper
Lower Chute
RH Handle Support Bracket
LH Handle Support Bracket
Cam Handle Lock
Handle Lock Pawl
Compression Spring:.36 x 1.0
Hex Cap Screw: 3/8-24 x 1.5
Shift Handle
Jam Nut, 3/8-24
Comp. Spring:.39 x.6 x.88
Bell Washer
Cable Guide: Chute Tilt
Upper Chute
RH Handle Support Bracket
LH Handle Support Bracket
Clevis Pin
5/16 Washer
Special Washer
Handle Panel
Control Cable
19
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Model H660G
27
1
39
38
Drive Clutch Cable
Auger Clutch Cable
5
4
37
13
30
7
45
40
6
3
4
30
5
2
14
36
26
15
16
44
20
9
7
10
11
25
31
12
28
23
41
17
8
18
4
24
32
1
22
29
1
33
21
30
42
5
8
34
Auger Clutch Cable
19
43
35
46
51
51
49
1
1
47
50
48
20
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Model H660G
REF.
NO.
1
2
3
4
5
6
7
PART
NO.
REF.
NO.
PART
NO.
DESCRIPTION
Self-tapping Screw, 1/4-20 x.625
Drive Cable Guide Bracket
Auger Clutch Cable Bracket
Cable Roller
Hex Screw 1/4-28
Frame Assembly
Ball Bearing
Bell Washer
Lock Jam Nut
Hex Flange Bearing
Flat Washer†
Front Support Guide Bracket
Lock Hex Screw
Bell Washer.340 ID x.872 OD
Cotter Pin
Flat Washer.536 ID x.930 OD
Self-tapping Screw, 1/4-20 x 1.25
Frame Shift Bracket
Frame Cover
Snap Ring
Flat Washer.760 ID x.50 OD
80 Tooth Gear
Key
7-Tooth Shaft
Roll Pin
Klik Pin
DESCRIPTION
Friction Wheel Assembly
Friction Disc Wheel
Wheel Shift Rod Assembly
Self-tapping Screw, 1/4-20 x.5
Spacer
Friction Wheel Bracket Assembly
Extension Spring
Jam Nut 3/8-24
710-1652
784-5688
784-5687A
756-0625
738-0924
784-5630B
741-0563
736-0105
712-0116
27 684-0042C
28 656-0012A
29 684-0013B
30 710-0599
31 748-0190
32 684-0021
33 732-0264
34 712-0711
35 746-0898B
36 738-0830
37 790-00010
38 735-0243B
39 718-0301A
40 618-0063A
41 711-1364
42 736-0142
43 714-0507
44 712-0703A
45 790-00011
46 734-1712A
47 731-04043
48 734-1525
723-0430
8
9
Drive Cable
Axle 16” Wheels
Friction Plate
10 741-04026
11 736-0188
12 784-5689A
13 710-0538
14 736-0242
15 714-0474
16 736-0160
17 710-0809
18 784-5590
19 784-5638A
20 716-0102
21 736-0351
22 717-1445
23 714-0126
24 717-04094
25 715-0249
26 714-0143
Friction Wheel Rubber
Friction Wheel Hub
Friction Wheel Bearing Assembly
Clevis Pin, 1/4 x 1.3725
Flat Washer,.281 x.5 x.063
Cotter Pin,.75
Insert Nut, 5/16-18
Friction Plate
Wheel Assembly Comp. 16 x 6.5
Spacer
Tire Only
Tire Chain (Not Shown)
Air Valve
Rim Only
Sleeve Bearing
49 734-0255
50 734-1711A
51 741-0401
† Use more than one washer on either side, only if necessary to reduce axle-play.
4
17
11
9
16
13
8
15
1
10
14
5
6
3
7
12
3
2
REF.
NO.
PART
NO.
REF.
NO.
1
2
3
4
5
6
7
PART
NO.
DESCRIPTION
Grease Plug
Grease Seal
Flat Washer.76 x 1.5 x.030
Flat Washer.508 x 1.0 x.020
Flat Washer.76 x 1.5 x.060
Flange Bearing.75 x 1.0 x.59
Flange Bearing.75 x 1.0 x.925
Gearbox Ass’y. Complete 28"
DESCRIPTION
RH Reducer Housing
LH Reducer Housing
Hex Screw 1/4-20 x.75
Spiral Axle 28"
Key
10 721-0325
11 721-0327
12 736-0351
13 736-0369
14 736-0445
15 741-0662
16 741-0663
17 618-0122A
618-0123
618-0124
710-0642
711-0910A
714-0161
715-0143
717-0528
717-0526
718-0186
Spiral Pin
Worm Gear, 20T
Worm Shaft
Thrust Collar
8
9
NOTE: When rebuilding a gearbox assembly, include 1.5 oz. of Alvania EP Lead-Free Grease (Part No. 737-0168)
21
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52
53
Model H660G
50
3
9
4
46
47
1
2
11
10
43
51
45
54
14
12
44
5
6
8
9
7
18
20
19
55
9
15
27
22
21
13
13
10
18
38
25
28
13
26
9
30
35
41
22
36
18
33
18
9
37
40
34
31
40
39
16
32
39
42
DESCRIPTION
REF.
NO.
1
2
3
4
5
6
7
PART
NO.
712-0116
REF.
NO.
PART
NO.
DESCRIPTION
Chute Clean-out Tool
Lock Jam Nut 3/8-24
Flat Idler
Auger Idler Arm
Hex Cap Screw 3/8-24 x 1.50
Shoulder Screw
Flat Washer,.565 x 1.25 x.02
Extension Spring
Hex Nut 5/16-18
31 731-2643
32 731-2635
33 784-5582A
34 741-0245
35 684-0065
36 715-0114
37 712-0429
38 605-5196A
39 736-0188
40 741-0493A
41 605-5197A
42 710-0890A
43 746-0897
44 714-0104
45 736-0185
46 684-0053B
47 747-0737
48 720-0201A
49 726-0100
50 705-5266
51 710-3015
52 712-0287
53 736-0270
54 741-0475
55 714-0145
756-0178
784-5632B
710-0459A
738-0281
736-0167
732-0611
712-3068
712-3010
Mount, Chute Clean-out Tool
28” Shave Plate
Hex Flange Bearing
Impeller Assembly
Pin
Lock Nut 5/16-18
Spiral 28” RH
Flat Washer
Flange Bushing
Spiral 28” LH
Shear Bolt 5/16-18 x 1.5
Drive Cable
Hairpin Clip
Flat Washer
Chute Crank Assembly
Upper Chute Crank
Chute Crank Knob
Push Cap
Chute Crank Bracket
Hex Screw 1/4-20
Hex Nut 1/4-20
Bell Washer
8
9
Hex Nut 5/16-18
Lock Washer 5/16
Housing
10 736-0119
11 05931A
12 741-0309
13 710-0451
14 705-5226
15 684-0041D
16 784-5618
18 736-0242
19 741-0475
20 784-5647
21 731-1379C
22 712-3027
25 710-0703
26 710-0726
27 736-0169
28 712-0798
30 784-5580
Ball Bearing
Carriage Bolt 5/16-18 x.75
Reinforcement Chute
28” Housing Assembly
Bearing Housing
Bell Washer
Bushing
Chute Crank Bracket
Chute Adapter
Hex Flange Lock Nut 1/4-20
Carriage Screw 1/4-20 x.75
Screw 5/16-12
Lock Washer 3/8
Hex Nut 3/8-16
Plastic Bushing
Hairpin Clip
Snow Shoe
22
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Model H660G
1
IMPORTANT: For a properly working machine, use Factory Approved Parts.
V-BELTS are specially designed to engage and disengage safely. A substitute
(non OEM) V-Belt can be dangerous by not disengaging completely.
27
28
2
3
5
4
8
26
9
12
15
11
10
16
19
16
7
16
4
19
6
16
21
22
13
14
17
25
18
23
20
20
24
REF.
NO.
PART
NO.
REF.
NO.
1
2
3
4
5
6
7
PART
NO.
DESCRIPTION
Lock Jam Nut 3/8-16
Pulley Half
Bell Washer
Flat Washer
DESCRIPTION
Hex Washer Screw 1/4-20 x.625
Belt Cover
Extension Spring
Hex Screw 5/16-24 x.75
Hex Cap Screw 3/8-16 x 1.25
Drive Clutch Idler Bracket
Shoulder Spacer
15 712-0181
16 756-0569
17 736-0242
18 736-0505
19 754-0430B
20 756-0967
21 736-0247
22 736-0331
23 710-0696
24 748-0360
25 710-0654A
26 629-0071
27 710-0602
28 732-0705
710-1652
731-1324
732-0710
710-0627
710-3005
05896A
748-0234
756-0987
754-0346
Belt
Auger Pulley
Flat Washer 3/8 x 1.25 OD
Bell Washer
Hex Cap Screw 3/8-24
Pulley Adapter
Hex Screw 3/8-16 x 1.0
Extension Cord, Three-Prong
Self Tapping Screw 5/16-18
Cable Guide
8
9
Pulley Half
V-Belt
Pulley Half
10 756-0986
11 736-0270
12 710-0230
13 756-0313
14 710-1245B
Bell Washer
Hex Cap Screw 1/4-28 x.50
Flat Idler
Lock Hex Cap Screw 5/16-24
23
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MANUFACTURER’S LIMITED WARRANTY FOR:
The limited warranty set forth below is given by MTD LLC with
respect to new merchandise purchased and used in the
United States, its possessions and territories.
d.
MTD does not extend any warranty for products sold or
exported outside of the United States, its possessions
and territories, except those sold through MTD’s
authorized channels of export distribution.
Replacement parts that are not genuine MTD parts.
Service completed by someone other than an
authorized service dealer.
“MTD”warrants this product against defects in material and
workmanship for a period of two (2) years commencing on the
date of original purchase and will, at its option, repair or
replace, free of charge, any part found to be defective in
materials or workmanship. This limited warranty shall only
apply if this product has been operated and maintained in
accordance with the Operator’s Manual furnished with the
product, and has not been subject to misuse, abuse,
commercial use, neglect, accident, improper maintenance,
alteration, vandalism, theft, fire, water, or damage because of
other peril or natural disaster. Damage resulting from the
installation or use of any part, accessory or attachment not
approved by MTD for use with the product(s) covered by this
manual will void your warranty as to any resulting damage.
e.
f.
g.
Transportation charges and service calls.
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.
Normal wear parts or components thereof are subject to
separate terms as follows: All normal wear parts or
component failures will be covered on the product for a period
of 90 days regardless of cause. After 90 days, but within the
two year period, normal wear part failures will be covered
ONLY IF caused by defects in materials or workmanship of
OTHER component parts. Normal wear parts and
components include, but are not limited to: batteries, belts,
blades, blade adapters, grass bags, rider deck wheels, seats,
snow thrower skid shoes, shave plates, auger spiral rubber,
and tires.
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.
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.
HOW TO OBTAIN SERVICE: Warranty service is available,
WITH PROOF OF PURCHASE, through your local authorized
service dealer. To locate the dealer in your area, check your
Yellow Pages, or contact MTD LLC at P.O. Box 361131,
Cleveland, Ohio 44136-0019, or call 1-800-800-7310 or 1-
330-220-4683 or log on to our Web site at
In no event shall recovery of any kind be greater than the
amount of the purchase price of the product sold. Alteration
of safety features of the product shall void this warranty.
You assume the risk and liability for loss, damage, or injury to
you and your property and/or to others and their property
arising out of the misuse or inability to use the product.
This limited warranty does not provide coverage in the
following cases:
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.
a.
The engine or component parts thereof. These items
may carry a separate manufacturer’s warranty. Refer
to applicable manufacturer’s warranty for terms and
conditions.
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.
b.
c.
Log splitter pumps, valves, and cylinders have a
separate one year warranty.
Routine maintenance items such as lubricants, filters,
blade sharpening, tune-ups, brake adjustments, clutch
adjustments, deck adjustments, and normal
deterioration of the exterior finish due to use or
exposure.
IMPORTANT: Owner must present Original Proof of Purchase to obtain warranty coverage.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-800-800-7310, 1-330-220-4683
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