Yard Machines 247.88347 User manual

MAc.,. s)ff
OPERATOR'S MANUAL
SNOW
THROWER
Model 611
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 aspark 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 isavailable through your nearest engine authorized
service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
PRINTED IN U.S.A. FORM NO.770-10001A
6/99

SECTION 1: FINDING YOUR MODEL NUMBER
This Operators Manual is an important part of your new snow thrower. It will help you assemble, prepare and
maintain your snow thrower. Please read and understand what itsays.
Before you start to prepare your snow thrower for its first use, please locate the model plate and copy the
information from it in this Operators Manual. The information on the model plate is very important if you need
help from your dealer or the MTD customer support department.
•Every snow thrower has a model plate. You can locate it by standing behind the unit in the operating
position and looking down at the frame below engine. See Figure 1
FI •
XXX-X-XXX-X-XXX XXXXXXXXXXX
[
MTDPRODUCTS,NC
CLEVELAND, OHIO 4413_
This is where your model number will be.
This is where your serial number willbe.
Copy the model number here:
Copy the serial number here:
Figure 1
SECTION 2: CALLING CUSTOMER SUPPORT
•LOCATE YOUR MODEL NUMBER AND SERIAL NUMBER -- Record this information in the space
provided. To find your unit's specific model number and serial number, see SECTION 1: FINDING
YOUR MODEL NUMBER.
•If you are having difficulty as6emb ng fills product or if you have any questions regarding the controls,
operation.orma!ntena__qcebf this unit please call the Customer Support Department.
• Customer Support can be reached by dialing: 1- (330) 220-4MTD
_. :(4683)
............................. or
..... 1- (800)-800 7310
• P ease have your mode number and ser al number ready when you call.
•Although both numbers are important, you will be asked to enter only your serial number before your

SECTION 3: IMPORTANT SAFE OPERATION PRACTICES
WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF
NOT FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF
YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL
BEFORE ATTEMPTING TO OPERATE YOUR SNOW THROWER. FAILURE TO COMPLY WITH
THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL-
HEED ITS WARNING.
_lb ARNING: The Engine Exhaust from this product contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive harm.
DANGER: Your snow thrower 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. If you violate any of these rules, you may
cause serious injury to yourself or others.
1. TRAINING
•Read this operator's manual carefully in its entirety
before attempting to assemble or operate this
machine. Be completely familiar with the controls
and the proper use of this machine before
operating it. Keep this manual in a safe place for
future and regular reference and for ordering
replacement parts.
•Never allow children under 14 years old to operate
a snow thrower. Children 14 years old and over
should only operate snow thrower under close
parental supervision. Only persons well acquainted
with these rules of safe operation should be
allowed to use your snow thrower.
•No one should operate this unit while intoxicated or
while taking medication that impairs the senses or
reactions.
• Keep the area of operation clear of all persons,
especially small children and pets.
• Exercise caution to avoid slipping or falling,
especially when operating in reverse.
1. PREPARATION
• Thoroughly inspect the area where the equipment
is to be used and remove all door mats, sleds,
boards, wires and other foreign objects.
• Disengage all clutches and shift into neutral before
starting engine.
•Do not operate equipment without wearing
adequate winter outer garments. Do not wear
jewelry, long scarfs or other loose clothing which
could become entangled in moving parts. Wear
footwear which will improve footing on slippery
surfaces.
Before working with gasoline, extinguish all
cigarettes and other sources of ignition. Check the
fuel before starting the engine. Gasoline is an
extremely flammable fuel. Do not fill the gasoline
tank indoors, while the engine is running, or until
engine has been allowed to cool at least two
minutes. Replace gasoline cap securely and wipe
off any spilled gasoline before starting the engine
as it may cause a fire or explosion.
Use a grounded three wire plug-in for all units with
electric drive motors or electric starting motors.
Adjust collector housing height to clear gravel or
crushed rock surface.
Never attempt to make any adjustments while
engine is running (except where specifically
recommended by manufacturer).
Let engine and machine adjust to outdoor
temperature before starting to clear snow.
Always wear safety glasses or eye shieldsduring
operation or while performing an adjustment or
repair, to protect eyes from foreign objects that may
be thrown from the machine in any direction.
2. OPERATION
Do not put hands or feet near or under rotating
parts. Keep clear of discharge opening and auger
at all times.
Exercise extreme caution when operating on or
crossing gravel drives, walks, or roads. Stay alert
for hidden hazards or traffic. Do not carry
passengers.
After striking a foreign object, stop the engine,
remove wire from spark plug, and thoroughly
inspect the snow thrower for any damage. Repair
the damage before restarting and operating the
snow thrower.
3

•If the snow thrower should start to vibrate
abnormally,stopthe engineand checkimmediately
for the cause. Vibrationis generallya warningof
trouble.
• Stop engine whenever you leave the operating
position, before unclogging the collector/impeller •
housing or discharge guide, and making any
repairs, adjustments, or inspections. Never place
your hand in the discharge or collector openings. •
Use astick or wooden broom handle to unclog the
discharge opening.
•Take all possible precautions when leaving the unit
unattended. Disengage the collector/impeller, stop
the engine, and remove the key.
•When cleaning, repairing, or inspecting, make
certain collectodimpeller and all moving parts have
stopped. Disconnect spark plug wire and keep
away from plug to prevent accidental starting.
•Do not run engine indoors,except when starting
engine and transporting snow thrower in or oLatof
building. Open doors. Exhaust fumes are
dangerous.
•Do not clear snow across the face of slopes.
Exercise extremecaution when changing direction
on slopes. Do not attempt to clearsteep slopes.
•Never operate snow thrower without guards, plates,
or other safety protection devices in place.
•Never operate snow thrower near glass enclosure,
automobiles, window wells, drop off, etc., without •
proper adjustments of snow thrower discharge
angle. Keep children and pets away.
• Do not overloadmachine capacityby attemptingto
clear snow attoo fast a rate.
Never operate the machine at high transport
speeds on slipperysurfaces.Look behind and use
care when backing.
Never direct discharge at bystanders or allow
anyone in front of unit.
Disengage power to collector/impeller when
transportingornot inuse.
Use only attachmentsand accessodesapproved
by the manufacturerof snow thrower (such as
wheelweights,counterweights,cabs,etc.).
Never operate the snow thrower without good
visibility or light, Always be sure of your footing and
keep a firm hold on the handles. Walk, never run.
Muffler and engine become hot and can cause a
bum. Do not touch.
3. MAINTENANCE AND STORAGE
Check shear bolts, engine mounting bolts, etc., at
frequent intervals for proper tightness to be sure
equipment is in safe working condition.
Never store the machine with fuel in the fuel tank
inside a building where ignition sources are
present, such as hot water and space heaters,
clothes dryers, and the like. Allow engine to cool
before storing in any enclosure.
Always refer to operator's manual instructions for
important details if snow thrower is to be stored for
an extended period.
Run machine afew minutes after throwingsnow to
prevent freeze up of collector/impeller.
Check clutch controls periodically to verify they
engage and disengage properly and readjust if
necessary. Refer to operator's manual for
adjustment instructions.
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.
Figure 2
4

SECTION 4- CONTENTS OF HARDWARE PACK
Lay out the hardware according to the illustration for identification purposes. Part numbers are shown in parentheses.
(Hardware pack may contain extra items which are not used on your unit.)
A ATTACHING THE HANDLES
(2)Hex Bolts (A)
(710-3180)
IIIIIIIIIIIIIIIIIIIIII
IIIIIIIIIIIIIIIIIIIIII
(2) Hex Bolts (B)
710-3008
(4)Lock Washers (C)
(736-0119)
©©
©©
(2) Saddle (I)
(784-5599)
ATTACHING THE SPEED SELECTOR PLATE
AND SHIFT LEVER
?@@@,,,s.
__ _1 Screws(F)
_! !_l _ (7,0-06,g)
(2)Hex _ IIIIIlilllllllllll QQ
Bolts (G)
<7t=-3016)I, iiiiiiiiiiiiiiiiiiiC2)HexLockNotsCH)
U(712-3027)
GI;;.c.£_j;_c.u?EO.RECT,ONAL
0
Cupped Washer (N)
(736-0242)
(2) Hex Nuts (D)
(712-3010)
©©
©©
(2) Flat Washers (S)
(736-0185)
Hair-Pin Clip (T)
(714-0104)
ATTACHING THE CLUTCH GRIPS
0000 ,,,..x.o,.,o,
(712-3010)
ATTACHING THE HANDLE PANEL
(4) Carriage Bolts (E)
(710-0262)
©
©
8
(4) Lock
Washers (C)
(736-0119)
EIATTACHING THE CONTROL CABLES
(2) "Z" Fitting (R) O@
(746-0778)
........................ ill
. __ (2) Hex Nuts (J)(712-0121)
FJA'I-FACHING THE CHUTE ASSEMBLY
@©
@©
@@
(6) Hex Bolts (K)
(710-3015)
(6) Hex Lock Nuts (M)
(712-3027)
(3) Chute Flange Keepers
(Not Shown) (731-0851)
AUGER SHEAR BOLTS (SPARES) (2) Shear Bolts
(2) Hex Lock Nuts (710-0890A)
(712-0429)
NOTE: The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. If you hit ahard foreign object or an ice jam, the
snow thrower isdesigned so that the bolts may shear. Two replacement shear bolts and nuts are provided for your convenience. Store in
a safe place until needed.
5

SECTION 5" ASSEMBLY INSTRUCTIONS
IMPORTANT: After assembly, service engine
with gasoline, and check oil level as instructed in the
separate engine manual packed with your unit.
NOTE: References to right or left side of the snow
thrower are determined from behind the unit in the
operating position.
UNPACKING
• Remove staples or break glue on the top flaps
of the carton. Remove any loose parts
included with unit (i.e., operator's manual,
etc.).
• Cut corner's and lay end of carton down flat.
Remove packing material.
• Roll unit out of carton. Check carton
thoroughly for loose parts before discarding.
TOOLS REQUIRED FOR ASSEMBLY
•Two adjustable wrenches
LOOSE PARTS IN CARTON See Figure 3
A
B
C
D
E
F
G
H
J
(2) Handles (Right and Left)
(t) Pivot Rod
(1) Cover Tube
(2) Clutch Grips (Right and Left)
(1) Handle Panel
(1) Speed Selector Plate
(1) Shift Lever
(1) Chute Directional Control Assembly
(1) Chute Assembly
A
E
Figure 3
6

HexBolt
(8)
Saddle
Lock Washer
(c)
(A)
Lock Washer(C)
Figure 4
Pivot Rod
ATTACHING THE HANDLES
(Hardware A)
1. Place right handle in position against the snow
thrower so the flat side of the handle is against
the frame. Secure bottom hole in handle to snow
thrower using hex bolt (B) and lock washer (C).
There are weld nuts welded to the inside of the
frame for these bolts, See Figure 4. Do not
tighten at this time.
2. Attach the left handle in the same manner. Do
not tighten at this time.
3, Place saddle (I) over upper holes on handles
(curve matching curve on handle). Secure to the
frame with lock washers (C) and hex bolts (A).
See Figure 4. Do not tighten at this time.
ATTACHING THE CLUTCH GRIPS
(Hardware B)
1. Slide the pivot rod into the cover tube as shown
in Figure 5. The pivot rod and cover tube may
already be assembled.
Figure 5
Hex Nuts (D)_
,Place the clutch grips in position on the rod so
the flat side of the clutch grips are against the
pivot rod cover, Thread hex nuts (D) onto each
end of the rod. Tighten nuts allowing the clutch
grips to move freely on pivot rod. See Figure 6,
Figure 6
Clutch Grip and
Rod Assembly_
S_'_" Handle
Tab
\
Hex Nut (D)
,Insert clutch grip and rod assembly into handle
tabs. Clutch grips must sit on top of the handles.
Thread hex nuts (D) on each end to hold into
position. Do not tighten, See Figure 7.
Figure 7
7

LockWashers(C)_
Figure 8
Speed
Selector
Plate
Shift Lever
Self-Tapping
Screw (F)
/
Hex(G)
Lever
Spring
Hex Lock
Nuts (H)
Figure 9
Figure 10
ATTACHING THE HANDLE PANEL
(Hardware C)
Position the handle panel between handles. Insert
carriage bolts (E) and secure with lock washers (C)
and hex nuts (D). See Figure 8.
ATTACHING SPEED SELECTOR PLATE
AND SHIFT LEVER (Hardware D)
1. Assemble the speed selector plate to the
outside of the handles as shown in Figure 9,
Secure using four self-tapping screws (F),
2. Insert the shift lever through slot in the speed
selector plate,
NOTE: The bend in the lever should be towards
the operator. Secure shift lever to the shift lever
spring using two hex bolts (G) and hex lock nuts (H),
Tighten both bolts finger tight. At this point the shift
lever and shift lever spring are not against each
other, As you tighten the bolts and nuts with two
wrenches they will pull together. See Figure 9.
3. Tighten all hardware assembled to this point.
CLUTCH GRIPS MUST MOVE FREELY.
ATTACHING THE CONTROL CABLES
(Hardware E)
1. Thread hex nuts (J) onto the "Z" fittings (R) (see
inset, Figure 10). Insert "Z" fitting into hole in
clutch grips.
2. Route the left cable between engine and speed
selector plate and then between handle panel
and clutch lever pivot rod before threading onto
the left "Z" fitting. Assemble the right cable using
the same route.
3. Correct adjustment on cables is minimal slack
but not tight. Tighten hex nuts when adjustment
is correct.
NOTE: If the right hand lockout cable is not
adjusted correctly, the wheels will tend to turn. If the
left hand lockout cable is not adjusted correctly, the
augers will not stop rotating.
WARNING: There must not be any
tension on either control cable with the
traction control or auger control grip in
the disengaged (up) position. These
clutches are a safety feature, and their
function can be overridden if there is
tension on either cable with the
clutches disengaged.
8

Chute
..Assembly
(K)
Hex Lock Nut
(M)
Chute Flange
Keeper
Figure 11
Hex Bolts (K)
Hex Lock Nuts (M)
Flat Chute
Directional
Control
ATTACHING THE CHUTE ASSEMBLY
(Hardware F)
1. Place chute assembly over chute opening, with
the opening in the chute assembly facing the
front of the unit. Place chute flange keepers
beneath lip of chute assembly, with the flat side
of chute flange keeper facing downward.
2, Insert hex bolt (K) up through chute flange
keeper and chute assembly as shown in Figure
11. Secure with hex lock nut (M). After
assembling all three chute flange keepers,
tighten all nuts and bolts securely. Do not
overtighten.
Note: Locknuts cannot be threaded onto a bolt by
hand. Tighten with 27/16" wrenches. This type of
nut is used where vibration occurs.
ATTACHING THE CHUTE DIRECTIONAL
CONTROL (Hardware G)
1. Loosen the two hex nuts which secure the lower
chute directional control support bracket (see
Figure 12) to the snow thrower housing.
2, Place one flat washer (T) over the end of the
chute directional control, then insert the end of
the chute directional control into the hole in the
plastic bushing in the chute bracket. See Figure
13. Place second flat washer (T) on chute
directional control, and secure with hairpin clip
(s).
.Thread one hex nut (D) onto the eyebolt on the
chute directional control assembly until there is
at least two inches of threads showing between
the nut and the head of the eyebolt. See Figure
14.
.Place the eyebolt into the hole located half way
up the left handle. Secure with cupped washer
(N) (cupped side against the handle, see inset,
Figure 14) and hex nut (D).
5, Adjust the chute directional control support
bracket (see Figure 13) so that the spiral on the
chute directional control fully engages the teeth
on the chute assembly. Tighten the hex nuts on
the lower chute directional control bracket
securely. Tighten the hex nuts on the eyebolt.
6. Check to make sure all nuts and bolts on the
control panel and all four bolts which secure the
handles to the frame are tight.
Figure 13

Left
Handle
Hex Nut
(O)
Cup _) CrownSide Side
/
Cupped
Washer (N)
Eyebolt
2" of
Thread,,
Figure 14
"Z" Fitting
(D)
Hex Bolt
Figure 15
Hex Nuts vr_
Carriage Bolts
Figure 16
FINAL ASSEMBLY AND ADJUSTMENTS
Auger Control
To check the adjustment of the auger control, push
forward on the left hand clutch grip (depress the
rubber bumper). There should be slack in the cable.
Release the clutch grip. The cable should be
straight. Make certain you can depress the auger
control grip against the left handle completely.
If necessary, loosen the hex lock nut and thread the
cable in (for less slack) or out (for more slack) as
necessary. Refer to Figure 15. Recheck the
adjustment.
Tighten the lock nut against the cable when correct
adjustment is reached.
Traction Control and Shift Lever
Adjustment
To check the adjustment of the traction control and
shift lever, 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. The 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
the and the wheels should keep turning
If you have 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.
NOTE: If you are uncertain that you have reached
the correct adjustment, refer to the Adjustment
section.
ADJUSTING THE SKID SHOES
The space between the shave plate and the ground
can be adjusted.
For close snow removal on a smooth surface, raise
the skid shoes into a high position on the auger
housing.
Use a middle or lower position when the area to be
cleared is uneven. See Figure 16.
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.
10

TIRE PRESSURE (Pneumatic Tires)
The tires are overinflated for shipping purposes.
Check tire pressure and reduce to 15 to 20 psi.
Refer to tire sidewalls for recommended tire
pressure.
NOTE: If the tire pressure is not equal in both tires,
the unit may pull to one side or the other.
SECTION 6: CONTROLS
Auger Control Traction Control
/
Chute Directional
Control Shift Lever
Figure 17
SHIFT LEVER
The shift lever is located below the handle panel.
The shift lever may be moved into one of seven
positions. Run engine with throttle in the fast
position. Use the shift lever to determine ground
speed. See Figure 17.
Forward-one of five speeds. Position number one
(1) is the slowest. Position number five (5) is the
fastest.
Reverse--two reverse speeds; R1 and R2. R2 isthe
faster reverse speed.
CHUTE DIRECTIONAL CONTROL
The chute directional control is located on left hand
side of the snow thrower. See Figure 17.
To change the direction in which snow is thrown,
turn chute directional control as follows:
•Crank clockwise to discharge to the left.
• Crank counterclockwise to discharge to the
right.
THROTTLE CONTROL
The throttle control is located on the engine. It
regulates the speed of the engine, See Figure 18,
SAFETY IGNITION KEY
The ignition key must be inserted in the switch
before the unit will start. Remove the ignition key
when snow thrower is not in use. Do not turn
ignition key. See Figure 18.
FUEL CUTOFF VALVE
The fuel cutoff valve, located under the fuel tank,
controls fuel flow from tank,
Choke Pdmer
AUGER CONTROL
The auger control is located on the left handle.
Squeeze the auger control grip to engage the
augers. Release to stop the snow throwing action.
See Figure 17.
TRACTION CONTROL
The traction control is located on the right handle.
Squeeze the traction control grip to engage the
wheel drive. Release to stop. See Figure 17.
Ignition
Key Control
Figure 18
Rope
Start
Handle
11

SECTION 7: OPERATION
BEFORE STARTING Electric Starter: (If Equipped)
,_ WARNING: Observe all Warning A
Labels on the snow thrower prior to
use. See Figure 2.
Your snow thrower is shipped with oil; however,
you must check the oil level before operating. Be
careful not to overfill.
The spark plug wire was disconnected for safety.
Attach spark plug wire to spark plug before starting,
GAS AND OIL FILL-UP
Check oil level and add oil if necessary. Service the
engine with gasoline as instructed in the separate
engine manual packed with your snow thrower.
Read instructions carefully.
WARNING: Never fill fuel tank
indoors. Never fill fuel tank with engine
running or while engine is hot. Do not
smoke when filling fuel tank.
TO START ENGINE
Attach spark plug wire to spark plug. Make
certain the metal loop on the end of the spark
plug wire (inside the boot) is fastened securely
over the metal tip on the spark plug. See Figure
19.
Metal Loop
on
Plug Wire
1,
WARNING: The optional electric
starter is equipped with a three-wire
power cord and plug, and is designed to
operate on 120 volt AC household
current. It must be properly grounded at
all times to avoid the possibility of
electric shock which may be injurious to
the operator. Follow all instructions
carefully. Determine that your house
wiring is a three wire grounded system.
Ask a licensed electrician if you are not
certain. If your house wiring system is
not a three-wire grounded system, do
not use this electric starter under any
conditions. If your system is grounded
and a three-hole receptacle is not
available at the point your starter will
normally be used, one should be
installed by a licensed electrician.
When connecting the power cord, always connect
cord to starter on engine first, then plug the other
end into a three-hole grounded receptacle.
When disconnecting the power cord, always unplug
the end from the three-hole grounded receptacle
first.
Switch
Spark Box
Plug_
Starter Button
Figure 19
2. Make certain the fuel cutoff valve is in the OPEN
(vertical) position.
3. Make certain the auger and drive clutch levers
are in the disengaged (released) position.
4. Move throttle control up to FAST position. Insert
ignition key into slot. See Figure 20. Be certain it
snaps into place. Do not turn key
ENGINE WILL NOT START
UNLESS IGNITION KEY IS IN-
SERTED INTO IGNITION
SLOT IN CARBURETOR
COVER. DO NOT TURN IGNI-
TION KEY.
1.
2.
3,
Key Throttle
Control
Rope Starter
Handle
Figure 20
Rotate choke knob to OFF position.
Connect power cord to switch box on engine.
Plug the other end of power cord into a three-
hole, grounded 12-volt AC receptacle.
Push starter button to crank engine. See Figure
20. As you crank the engine, move choke knob
to FULL choke position.
12

4. 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.
Recoil Starter:
1. Rotate choke knob to FULL choke position (cold
engine start).
2. If engine is warm, place choke in OFF position
instead of FULL.
3. Push primer button two or three times for cold
engine start. See Figure 20.
4. Ifengine iswarm, push primer button once only.
NOTE: Do not lose ignition key. Keep it in a safe
place. Engine willnot start without the ignition key.
5. 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.
TO ENGAGE DRIVE
1,
NOTE: Always cover vent hole in primer button 2.
when pushing. Additional priming may be necessary
for first start if temperature is below 15 degrees 3,
Fahrenheit.
5. Grasp starter handle (see Figure 20) 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.
Repeat step 8 until engine starts.
.
.
8. 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.
TO STOP ENGINE
1, Run engine for a few minutes before stopping to
help dry off any moisture on the engine.
2. To help prevent possible freeze up of starter,
proceed as follows.
• Electric Starter (If Equipped): 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.
•Recoil Starter: With engine running, pull
starter rope with arapid, 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.
3. To stop engine, move throttle control to "stop" or
"ofF' position.
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,
4,
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.
Squeeze the auger control grip and the augers
will turn. Release itand the augers willstop.
Squeeze the traction control grip and the snow
thrower will move. Release it and drive motion
will stop.
4. NEVER move shift lever without releasing drive
clutch.
TO ENGAGEAUGERS
To engage the augers and start the snow throwing
action, squeeze the auger control grip against the
left handle. Release to stop the augers.
TIRE CHAINS (Optional Equipment)
Tire chains should be used whenever extra traction
is needed,
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.
4_ WARNING:Temperature of muffler
and surrounding areas may exceed 150
degrees Fahrenheit. Avoid these areas.
1.
2.
3.
4,
5.
For most efficient snow removal, remove snow
immediately after it falls.
Discharge snow downwind whenever possible.
Slightly overlap each previous swath.
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.
Be certain to follow the precautions listed under
"To Stop Engine" to prevent possible freeze-up.
Clean the snow thrower thoroughly after each
use.
13

SECTION 8: ADJUSTMENTS
_b WARNING: NEVER attempt to clean
chute or make any adjustments while
engine is running.
CHUTE ASSEMBLY ADJUSTMENT
The distance snow is thrown can be controlled by
adjusting the angle of the top section of the chute
assembly.
SKID SHOEADJUSTMENT
The space between the shave plate and the ground
can be adjusted. Refer to the Final Assembly and
Adjustments section.
TRACTION CONTROL ADJUSTMENT
Refer to the Final Assembly and Adjustments
section to adjust the traction control, if you are
uncertain that you have reached the correct
adjustment, the adjustment can be physically
checked as follows.
1. With the snow thrower tipped forward (be certain
to drain the oil gasoline or drain the oil and place
plastic film under the gas cap if the snow thrower
has already been operated), 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
the traction control engaged, the friction wheel
must contact the drive plate. See Figure 21.
Friction
Wheel
.If adjustment is necessary, loosen the lock nut
on the traction control cable and thread the
cable in or out as necessary. Tighten the lock
nut to secure the cable when correct adjustment
is reached. Reassemble the frame cover.
NOTE: If you placed plastic under the gas cap, be
certain to remove it.
AUGER CONTROL ADJUSTMENT
To adjust the auger clutch, refer to Final Assembly
and Adjustments in section 5.
CARBURETOR ADJUSTMENT
WARNING: If any adjustments are
made to the engine while the engine Is
running (e.g. carburetor), keep clear of
all moving parts. Be careful of heated
surfaces and muffler.
Minor carburetor adjustment may be required to
compensate for differences in fuel, temperature,
altitude and load.
Refer to the separate engine manual packed with
your unit for carburetor adjustment information.
DRIVE WHEELS
The wheels may be adjusted for two different
methods of operation. The adjustment is made by
placing the klick pins in one of two different holes on
the right side of the unit. See Figure 22.
1. One Wheel Driving--On the right side of the
unit, place klick pin in the outside axle hole only.
Do not place pin through wheel hub. This
position gives power drive to the left wheel only,
making the unit easier to maneuver.
2. Both Wheels Driving--Rotate wheel assembly to
align hole in hub with inner hole on axle shaft.
Insert klick pin in hole. Outer axle shaft hole
should be visible. See Figure 22.
Drive
Plate
Figure 21
Figure 22
- Outside
Hole in Axle
14

SECTION 9: LUBRICATION
,_ WARNING: Disconnect the spark plugwire and ground against the engine
before performing any repairs or
maintenance,
ENGINE
Refer to engine manual for engine lubrication
instructions.
WARNING: When following instructions
in separate engine manual for draining oil,
be sure to protect frame to avoid oil
dripping onto transmission pads.
WHEELS
Oil or spray lubricant into bearings at wheels at least
once a season. Pull klick pin, remove wheels, clean
and coat axles with a multipurpose automotive
grease. See Figure 23.
Oil Bearings
Klick Pin Lubricant
GEAR SHAFr
Lubricate the gear shaft with a good al-weather
multi-purpose light grease at least once a season or
after every 25 hours of operation.
IMPORTANT: Keep all grease and oil off of the
fdction wheel and drive plate.
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.
GEAR CASE
The worm gear case has been filled with grease at
the factory. If disassembled for any reason, lubricate
with 2 ounces of shell grease, part number 737-
0168.
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.
SECTION 10: MAINTENANCE
,_ WARNING: Disconnect the spark plug
wire and ground against the engine
before performing any repairs or
maintenance.
Figure 23
CHUTE DIRECTIONAL CONTROL
The worm gear on the chute control should be
greased with multipurpose automotive grease.
AUGER SHAFT
At least once aseason, remove shear bolts on auger
shaft. Oil or spray lubricant inside shaft and lubricate
the auger bearings. See Figure 24.
Shear Bolts
Bearings
Figure 24
ENGINE
Refer to separate engine manual for all engine
maintenance procedures.
AUGERS
The augers are secured to the spiral shaft with two
shear bolts and hex lock nuts. See Figure 24. If you
hit a hard foreign object or ice jam, the snow thrower
is designed so that the bolts may shear.
If the augers will not turn, check to see if the bolts
have sheared. Replacement shear bolts and hex
lock nuts have been provided with the snow thrower.
When replacing bolts, spray an oil lubricant into shaft
before inserting new bolts.
SHAVE PLATE AND SKID SHOES
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.
15

•To remove skid shoes, remove the four
carriage bolts, cupped washers and hex nuts
which attach them to the snow thrower.
Reassemble new skid shoes with the four
carriage bolts, cupped washers (cupped side
goes against skid shoes) and hex nuts.
•To remove shave plate, remove the carriage
bolts, cupped w_ishers 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.
BELT REMOVAL AND REPLACEMENT
WARNING: Remove the spark plug
wire from the spark plug and ground.
Drain gasoline from the fuel tank, or
place a piece of plastic film underneath
the gas cap to prevent gasoline from
leaking,
AUGER BELTS
t. Remove the plastic belt cover on the front of the
engine by removing the two self-tapping screws.
See Figure 25.
Cover Screws
Drive
Auger Belt
Belt
_ Drive
Pulley
Idler
Pulley
7.
Pulley
Figure 26
Unhook the support bracket spring from the
frame.
NOTE: It may be necessary to loosen the six nuts
that connect the frame to the auger housing to aid in
belt removal.
.Lift the rear auger belt from the auger pulley,
and slip belt between the support bracket and
the auger pulley. See Figure 26. Repeat this
step for the front auger belt.
9. Replace both auger drive belts by following
instructionsin reverse order.
Friction Wheel
Pin
Figure 25
2. Drain the gasoline from the snow thrower, or
place a piece of plastic under the gas cap.
3. Tip the snow thrower up and forward so that it
rests on the housing.
4. Remove six self-tapping screws from the frame
cover underneath the snow thrower.
5. Roll the auger belt oft the engine pulley. See
Figure 26.
6. Unhook the idler spring from the hex bolt on the
auger housing. See Figure 27.
Support
Bracket\
Idlel; 7
Pulley Spring Auger Bracket
Housing Spring
Figure 27
3ear
16

DRIVE BELT
1.
2.
3.
4.
Follow steps 1 through 4of previous
instructions.
Pull idler pulley up, and lift belt off engine pulley
and friction wheel disc. See Figure 26.
Using a wrench, loosen the nut on the stop bolt
until the support bracket rests on the auger
pulley. See Figure 28.
Slip belt between friction wheel and friction
wheel disc. See Figure 28. Remove and replace
belt. Reassemble following the instructions in
reverse order.
3. Remove six self-tapping screws from the frame
cover underneath the snow thrower.
4. Remove the klick pins which secure the wheels,
and remove the wheels from the axle.
5. Using a wrench to hold the shaft, loosen, but do
not completely remove, the hex nut and bell
washer on the left end of gear shaft. See Figure
29.
.
7.
NOTE: The support bracket must rest on the stop
bolt after the new belt has been assembled. See 8.
Figure 28.
Friction
Wheel
g.
10.
\
Lightly tap the hex nut to dislodge the ball
bearing from the right side of the frame. Remove
the hex nut and bell washer from the left end of
shaft.
Slide the gear shaft to the right, then slide the
friction wheel assembly from the shaft.
Remove the six screws from the friction wheel
assembly (three from each side). Remove the
friction wheel rubber from between the fdction
wheel plate,
Reassemble new friction wheel rubber to the
friction wheel assembly, tightening the six
screws in rotation and with equal force.
Slide friction wheel assembly back onto the gear
shaft. Be sure to align the pin on the shift rod
with the hole in the friction wheel assembly. See
Figure 27. Reassemble in reverse order.
Figure 28
CHANGING THE 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.
1. Drain the gasoline from the snow thrower, or
place a piece of plastic under the gas cap.
2. Tip the snow thrower up and forward, so that it
rests on the housing. Figure 29
17

SECTION 11" OFF-SEASON STORAGE
WARNING: Never store engine with
fuel in tank indoors or in poorly
ventilated areas, where fuel fumes may
reach an open flame, spark or pilot light
as on a furnace, water heater, clothes
dryer or other gas appliance.
If unit is to be stored over 30 days, prepare for
storage as follows:
1.
2_
3.
Remove all 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.
Drain carburetor by pressing upward on bowl
drain, located below the carburetor cover.
WARNING: Drain fuel into approved
container outdoors, away from open
flame. Be certain engine is cool. Do not
smoke. Fuel left In engine during warm
weather deteriorates and will cause
serious starting problems.
NOTE: Fuel stabilizer is an acceptable alternative
in minimizing the formation of fuel gum deposits
during storage. Add stabilizer to gasoline in fuel tank
or storage container. Always follow mix ratio found
on stabilizer container. Run engine at least 10
minutes after adding stabilizer to allow it to reach
carburetor. Do not drain carburetor if using fuel
stabilizer.
4. Remove all dirt from exterior of engine and
equipment.
5_ Remove spark plug and pour one (1) 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.
6. Follow lubrication recommendations in section
.
NOTE: When storing any type of power equipment
in an unventilated or metal storage shed, care
should be taken to rust proof the equipment. Using a
light oil or silicone, coat the equipment, especially
any chains, springs, bearings and cables.
18

SECTION 12: Trouble Shooting Guide
Trouble Possible Cause(s) Corrective Action
Engine fails to start Fuel tank empty, or stale fuel.
Blocked fuel line.
Choke not in ON position
Faulty spark plug.
Key not in switch on engine.
Spark plug wire
disconnected.
Primer button not depressed.
Fuel shut-off valve closed
(if so equipped).
Unit running on CHOKE.
Blocked fuel line or stale fuel.
Fill tank with clean, fresh gasoline. Fuel will 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.
Connect spark plug wire.
Refer to the engine manual packed with your unit.
Open fuel shut-off valve.
Engine runs Move choke lever to OFF position.
erratic** Clean fuel line; fill tank with clean fresh gasoline. Fuel will not last
over thirty days unless a fuel stabilizer is used.
Water or dirt in fuel system. Drain fuel tank. Refill with fresh fuel.
Carburetor out of adjustment. Refer to the engine manual packed with your unit or have
carburetor adjusted by an authorized service dealer.
Loss of power Spark plug wire loose. Connect and tighten spark plug wire.
Gas cap vent hole plugged. Remove ice and snow from cap. Be certain vent hole is clear.
Exhaust port plugged. Clean-see Maintenance section of engine manual.
Engine overheats Carburetor not adjusted Refer to the engine manual packed with your unit or have
properly, carburetor adjusted by an authorized service dealer.
Incorrect fuel mixture. Drain fuel tank. Refill with proper fuel mixture.
Excessive vibration Loose parts or damaged Stop engine immediately and disconnect spark plug wire. Tighten
auger, 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.
Unit fails to Discharge chute clogged.
discharge snow Foreign object lodged in
auger.
Incorrect adjustment of drive
cable.
Drive belt loose or damaged.
Replace drive belt. Refer to Belt Replacement in Maintenance
section of this manual.
Stop engine immediately and disconnect spark plug wire. Clean
discharge chute and inside of auger housing.
Stop engine immediately and disconnect spark plug wire.
Remove object from auger.
Adjust drive cable. Refer to Adjustment section of this manual.
Replace drive belt. Refer to Belt Replacement in Maintenance
section of this manual.
Note: For repairs beyond the minor adjustments above, contact your local authorized service dealer.
19

Gear Assembly
Model 611
12 9 13
5 8
10 6
/• (9
11
REF,
NO.
1
2
3
4
5
6
7
8
PART
NO.
618-0123
618-0124
710-0642
711-1020
711-0908
714_0161
715-0143
717-0526
717-0528
718-0186
DESCRIPTION
Housing--R.H.
Housing_L.H.
Hex Screw 1/4-20 x .75
Spiral Axle 22"
Spiral Axle 24"
Key
Pin-Spiral
Shaft-Worm
Gear-Worm
Collar-Thrust
REF.
NO.
9
10
11
12
13
14
15
16
17
PART
NO.
721-0325
721-0327
736-0351
736-0369
736-0445
737-0168
741-0662
74! -0663
618-0152
618-0120
DESCRIPTION
Plug
Seal-Oil
Washer-Flat
Washer-Flat
Washer-Flat
Grease
Bearing-Flange
Bearing-Flange
Ass'y. Complete 22"
Ass'y Complete 24"
20