IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
45” Snow Thrower
Attachment
Model
190-624
PRINTED IN U.S.A. FORM NO.770-0383B
OPERATOR’S MANUAL
(9/97)
2
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 YOUR SNOW
THROWER ATTACHMENT. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL
INJURY. WHEN YOU SEE THIS SYMBOL—
HEED ITS WARNING.
DANGER:
Your snow thrower attachment 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.
TRAINING
1. Read this owner’s guide carefully. Be thoroughly familiar
with the controls and proper use of the equipment. Know
how to stop the unit and disengage the controls quickly.
2. Never allow children to operate equipment. Never allow
adults to operate equipment without proper instructions.
3. No one should operate this unit while intoxicated or while
taking medication that impairs the senses or reactions.
4. Keep the area of operation clear of all persons, especially
small children and pets.
PREPARATION
1. Thoroughly inspect the area where the equipment is to be
used and remove all door mats, sleds, boards, wires and
other foreign objects.
2. Disengage all clutches and shift into neutral before
starting engine.
3. Do not operate equipment without wearing adequate
winter outer garments. Wear footwear which will improve
footing on slippery surfaces.
4. Check the fuel before starting the engine. Gasoline is an
extremely flammable fuel. Use an approved container. Do
not fill the gasoline tank indoors, while the engine is
running, or while the engine is still hot. Replace gasoline
cap securely and wipe off any spilled gasoline before
starting the engine as it may cause a fire or explosion.
5. Adjust collector housing height to clear gravel or crushed
rock surface.
6. Never attempt to make any adjustments while engine is
running (except where specifically recommended by
manufacturer).
7. Let engine and machine adjust to outdoor temperature
before starting to clear snow.
8. Always wear safety glasses or eye shields during
operation or while performing an adjustment or repair, to
protect eyes from foreign objects that may be thrown from
the machine in any direction.
OPERATION
1. Do not put hands or feet near rotating parts. Keep clear of
discharge opening at all times.
2. Exercise extreme caution when operating on or crossing
gravel drives, walks, or roads. Stay alert for hidden
hazards or traffic. Do not carry passengers.
3. 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.
4. If the snow thrower should start to vibrate abnormally, stop
the engine and check immediately for the cause. Vibration
is generally a warning of trouble.
5. Stop engine whenever you leave the operating position,
before unclogging the collector/impeller housing or
discharge guide, and making any repairs, adjustments, or
inspections.
6. Take all possible precautions when leaving the unit
unattended. Disengage the collector/impeller, shift into
neutral, stop the engine, and remove the key.
7. When cleaning, repairing, or inspecting, make certain
collector/impeller and all moving parts have stopped.
Disconnect spark plug wire and keep away from plug to
prevent accidental starting.
8. Do not run engine indoors, except when starting engine
and transporting snow thrower in or out of building. Open
the outside doors. Exhaust fumes are dangerous.
9. Do not clear snow across the face of slopes. Exercise
extreme caution when changing direction on slopes. Do
not attempt to clear steep slopes.
10. Never operate snow thrower without guards, plates, or
other safety protection devices in place.
11. 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.
12. Do not overload machine capacity by attempting to clear
snow at too fast a rate.
13. Never operate the machine at high transport speeds on
slippery surfaces. Look behind and use care when
backing.
14. Never direct discharge at bystanders or allow anyone in
front of unit.
15. Disengage power to collector/impeller when transporting
or not in use.
16. Use only attachments and accessories approved by the
manufacturer of snow thrower (such as wheel weights,
counter weights, cabs, etc.).
17. 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.
MAINTENANCE AND STORAGE
1. Check shear bolts, engine mounting bolts, etc., at frequent
intervals for proper tightness to be sure equipment is in
safe working condition.
2. 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.
3. Always refer to owner’s guide instructions for important
details if snow thrower is to be stored for an extended
period.
4. Maintain or replace safety and instruction labels as
necessary.
5. Run machine a few minutes after throwing snow to
prevent freeze up of collector/impeller.
3
Warning - Your responsibility:
Restrict the use of this attachment to persons who read,
understand and follow the warnings and instructions in this manual and on the machine.
Figure 1
SECTION 1: FINDING YOUR MODEL NUMBER
This Operator’s Manual is an important part of your new snow thrower attachment. It will help you assemble,
prepare and maintain your snow thrower. Please read and understand what it says.
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 Operator’s 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 on the right side of the unit in the
operating position and looking down at the auger housing next to the discharge chute.
• The model plate will look like Figure 2.
Figure 2
SECTION 2: CALLING CUSTOMER SUPPORT
If you are having difficulty assembling this product or if you have any question regarding the controls,
operation or maintenance of this unit, please call the Customer Support Department. You can reach them by
calling:
1-800-800-7310
Before you call, make sure that you have your model and serial numbers ready. By having the model and
serial numbers ready, you help the Customer Support Representative give you faster service. To find your
unit’s model and serial number, see SECTION 2: FINDING YOUR MODEL NUMBER.
STOP ENGINE BEFORE REMOVING
DEBRIS AND SERVICING UNIT
KEEP CLEAR OF IMPELLER WHILE
ENGINE IS RUNNING
NEVER DIRECT DISCHARGE AT
BYSTANDERS OR WINDOWS OR
ALLOW ANYONE IN FRONT OF
UNIT
THOROUGHLY INSPECT THE AREA
WHERE THE EQUIPMENT IS TO BE
USED AND REMOVE ALL DOOR
MATS, SLEDS, BOARDS, WIRES AND
OTHER FOREIGN OBJECTS
REFER TO OWNERS MANUAL FOR
FULL INSTRUCTIONS
1.
2.
3.
4.
5.
3396MW
WARNING
AVOID INJURY FROM
ROTATING AUGER -
KEEP HANDS, FEET
AND CLOTHING AWAY.
DANGER
XXX-X-XXX-X-XXX XXXXXXXXXXX
This is where your model number will be.
This is where your serial number will be.
Copy the model number here:
Copy the serial number here:
MTD PRODUCTS INC
CLEVELAND, OHIO 44136
4
SECTION 3: HARDWARE PACK
Lay out the hardware according to the illustration for identification purposes. Part numbers are shown.
(Hardware pack may contain extra items which are not used on your unit.)
(A) Attaching front frame ass’y and auger
housing.
(4) 710-0514 Hex Bolts 3/8-16:1.00’’ Lg.
(4) 736-0169 Lock washer 3/8 I.D.
(B) Attaching rear frame rails and front frame
ass’y.
(4)
710-0786 Hex Cap Screw 1/2-13:4.00’’ Lg.
(4) 736-0921 Lock Washer 1/2 I.D.
(4) 712-0206 Hex Nut 1/2-13 Thd.
(2) 784-5199 Bracket (Lift plate)
(Not Pictured)
(C) Attaching the carriage assembly.
(2) 710-0514 Hex Bolt 3/8-16 x 1” Lg.
(2) 736-0169 Lock Washer 3/8 I.D.
(2) 712-3017 Hex Nuts 3/8-16 Thd.
(D) Attaching the chute assembly.
(3) 731-0851A Chute Flange Keepers
(6) 710-3015 Hex Bolt 1/4-20:.75’’ Lg.
(6) 712-3027 Hex Flange Nut 1/4-20 Thd.
(E) Attaching the chute crank support tube.
(2) 712-0130 Hex Nut 3/8-16 Thd.
(2) 710-0520 Hex Bolt 3/8-16: 1.50 Lg.
(F) Attaching the chute tilt handle.
(2) 710-0262 Carriage bolt 5/16-18: 1.5’’ Lg.
(2) 712-3004A Hex Flg. Lock Nut 5/16-18 Thd.
(1) 725-0157 Cable tie 3/16 x .05 x 7.4” Lg.
(G) Attaching the chute crank.
(1) 714-0507 Cotter pin 3/32 x .75” Lg.
(2) 710-0451 Carriage Bolt 5/16-18:.75 Lg.
(2) 736-0242 Bell Washer .340 I.D. x .872 O.D.
(2) 712-0429 Lock Nut, Nylon 5/16-18 Thd.
(H) Attaching the rear frame sections to the
rear hanger brackets.
(2) 711-0231 Clevis pin* 1/2 x 1.59’’ Lg.
(2) 736-0272 Flat Washer* 1/2 I.D.
(2) 714-0101
Hair Pin* .08 x 1.42” Lg.
*Attaching bracket to snow thrower attachment
frame.
(I) Attaching the adjustable lift links to the
brackets.
(2) 711-0332 Clevis Pin .50 Dia. x .78” Lg.
(2) 736-0272 Flat washer 1/2” I.D.
(2) 714-0101 Hair Pin .08 x 1.42” Lg.
(J) Attaching helper springs.
(2) 710-0959 Hex Bolt 5/16-18:1.50” Lg.
(2) 736-0242 Bell Washer .340 I.D. x .872 O.D.
(K) Attaching the Guide Bracket.
(4) 714-0147 Hair Pin .125 x 1.75 Lg.
(L) Attaching The Rear Hanger Brackets To
Tractor Frame.
(2) 710-0514 Hex bolt 3/8-16: 1.00 Lg.
(2) 736-0169 Lock washer 3/8 I.D.
(2) 712-3017 Hex nut 3/8-16 Thd.
(M) Attaching Helper Springs To Tractor
(2) 710-0959 Hex Bolts 5/16-18:1.50 Lg.
(2) 736-0231 Flat Washer .344 I.D.x 1.125 O.D.
(4) 712-3010 Hex Nut 5/16-18 Thd.
Extra Shear Bolts (2)
(2) 712-0429 Lock nut, Nylon 5/15-18 Thd.
(2) 710-0891 Shear bolt
Note:
Hex lock nuts cannot be threaded onto a
bolt by hand. A wrench is required for assembly.
This type of nut is used where vibration occurs.
5
SECTION 4: LOOSE PARTS IN CRATE
Remove snow thrower, all loose parts and hardware pack from crate. Be certain to remove all contents
before discarding crate.
•Snow thrower assembly
•Front frame assembly
•Rear frame rails (2)
•Carriage assembly
•Adjustable lift links (2)
•Lift plates (2)
•Guide bracket assembly
• Discharge chute / tilt handle assembly
• Helper springs (2)
• Chute crank support tube
• Chute crank / Mounting bracket assembly
• Chute crank rod assembly
• Hardware pack
SECTION 5: UNPACKING
1. Remove (8) eight tapping screws, four each
located on the two lower sides of the crate.
2. Lift off the complete upper crate assembly and
put aside.
3. Pull back plastic cover.
4. Cut cable ties securing auger housing assembly
to the lower crate frame.
5. Carefully remove the auger housing.
6. Remove all parts from boxes in the crate.
7. Lay out loose parts and contents of the
hardware pack for identification purposes.
SECTION 6: Assembly Instructions
Note:
References to right or left side of the snow
thrower are determined by the unit in the operating
position.
TOOLS REQUIRED FOR ASSEMBLY
(2) 3/4” wrench or adjustable wrenches
(2) 9/16” wrench or adjustable wrenches
(2) 1/2” wrench or adjustable wrenches
(2) 7/16” wrench or adjustable wrenches
(1) pr. pliers
NOTE:
Two adjustable lift link assemblies are
provided with the snow thrower attachment. If there
are not two adjustable lift links on the front of your
unit, remove and replace with adjustable lift links
provided.
1. Lay front frame assembly on flat surface. See
Figure 3.
Figure 3
2. Lower auger housing down onto mounting
bracket. Align four holes and secure with four
hex bolts and lock washers. See Figure 4.
(
Hardware A)
Figure 4
ATTACHING FRONT AND REAR FRAME
RAILS
(Hardware B)
1. Place the lift plate between the tubing halves.
Rear tubing is rectangular (1" x 2") and goes to
the outside. Front tubing assembly is square.
Make certain hole locations are placed correctly
as shown in Figure 5.
Mounting Holes
Mountin
g
Holes
Auger
Housing
Mounting
Bracket
Idler
Spring
(Hooked
to Front
of Frame)
Auger
Housing
Hex Bolts and
Lock Washers
Front Frame
Assembly
6
Figure 5
Figure 6
Figure 7
Figure 8
2. Note: The offset hole in the rear tubing should
be to the back of the unit and on the upper side.
3. Secure the front tubing assemblies to the rear
tubing with four (4) hex bolts 1/2-13 x 4" long,
lock washers and hex nuts. Bolts go from inside
out and the nuts and washers must go on the
outside. See Figure 6.
ATTACHING CHUTE ASSEMBLY
(Hardware D)
1. Place the discharge chute assembly over the
opening of the chute adapter, with the opening
of the discharge chute facing forward.
2. With the flat side facing downward, place the
chute flange keepers beneath the flanges of
both the discharge chutes and the chute
adapter. Insert the hex cap screws up through
the flange keepers and discharge chute flange
as shown in Figure 7, and secure with the hex
flanged lock nuts. After assembling all three
chute flange keepers, tighten all lock nuts until
snug, then back off (loosen) approximately 1/4
turn.
ATTACHING THE CHUTE CRANK
SUPPORT TUBE
(Hardware E)
Fasten the chute crank support tube assembly to the
support tube mounting bracket and to the back of
the snow thrower housing using the hex cap screws
and hex insert lock nuts. Refer to Figure 8.
Front
Lift Plate
Front Tubing
Rear Tubing
Offset Hole
3/4" Wrenches
Hex Bolt (F)
Hex Nuts
Lock Washers
Front
Hex Lock Nut
Chute Flange Keeper
Chute
Assembly
Hex
Bolt
Hex Lock Nut
Chute Crank
Support Tube
Support Tube
Mounting Bracket
Hex Cap
Screws
7
Figure 9
Figure 10
Figure 11
ATTACHING THE CHUTE TILT HANDLE
AND CHUTE CRANK
(Hardware F)
1. Routing the tilt handle cables along the inside of
the chute crank support tube, install the chute
tilt handle assembly on the support tube using
the carriage bolts and hex flange lock nuts.
Refer to Figure 9.
2. Secure the tilt handle cables to the support tube
with the cable tie. See Figure 9. Cut excess
length from the cable tie.
ATTACHING THE CHUTE CRANK
(Hardware G)
1. Position the chute crank mounting bracket
assembly on the mounting flange (on the left
side of the chute adapter) so that the spiral of
the chute crank engages the teeth of the
discharge chute. Fasten the chute crank
mounting bracket with the two carriage bolts,
bell washers, and hex insert lock nuts. Do not
completely tighten the hardware now. Refer to
Figure 10.
2. After first making sure the bushings are installed
in both the rearward end and the eye bolt of the
chute crank support tube assembly, slide the
chute crank rod assembly into the support tube
assembly. Refer to Figure 11.
3. Insert the chute crank rod into the sleeve of the
joint block on the chute crank assembly. Align
the holes and secure the rod with the cotter pin.
See Figure 12.
Cable Tie
Tilt Handle
Cables
Carriage Bolts
Hex Flange
Lock Nuts
Chute Crank
Support Tube
Tilt Handle
Ass’y
Hex Insert
Lock Nut
Bell
Washers
Carriage
Bolts
Chute Crank
and Mtg. Bracket
Assembly
Bushing
Chute Crank
Rod
Chute Crank
Support Tube
8
Figure 12
4. Adjust the chute crank mounting bracket so the
spiral of the chute crank fully engages the teeth
of the discharge chute, but still allows the chute
crank rod to be easily turned, then tighten the
hex insert lock nuts.
INSTALLING AND ALIGNING THE DRIVE
BELT
1. Remove small pulley from the idler bracket
assembly on the left support bracket.
2. Route the V Belt between the belt keepers and
the pulley making sure the “V” belt is in the
pulley.
3. With pulley hub towards the bracket, reinstall
pulley and secure with the lock washer and lock
nut.
4. Be sure belt is aligned with large pulley on
blower housing and under small pulleys on
snow thrower frame. See Figure 13.
Figure 13
ATTACHING THE GUIDE BRACKET
(Hardware K)
Figure 14
The guide bracket assembly has two rods welded to
it. Assemble the guide bracket assembly to the front
of the tractor as follows.
• If there is approximately 13" between the
brackets on the front of the tractor frame,
insert the longer rod into the rear holes in the
front brackets. Secure with four internal cotter
pins, two on the ends of the rod, and two
inside the front brackets. See Figure 14.
• If there is approximately 9-1/2" between the
brackets on the front of the tractor frame,
rotate the guide bracket assembly so the
shorter rod is toward the top of the assembly.
Insert the shorter rod into the rear holes in the
front brackets. Secure with two internal cotter
pins.
NOTE:
Keep the guide bracket assembly under
the tractor as you assemble the rest of the snow
thrower attachment.
Support
Bracket
Support
Bracket
Small
Pulleys
Large Pulley on Blower Housing
Internal
Cotter Pins
Guide
Bracket
Assembly
Front of Tractor
Front Bracket
Rear Hole in
Front
Bracket
9
ATTACHING SNOW THROWER TO THE
TRACTOR (Hardware L)
1. Remove the internal cotter pins on tractor rear
hitch rod. See Figure 15.
Figure 15
2. Place the rear hanger brackets over the rear
hitch rod. See Figure 16. Secure in place with
internal cotter pins removed in step 1.
3. Secure rear hanger brackets to tractor frame
with hex bolts, lock washers and hex nuts. See
Figure 20. A 9/16" wrench and adjustable
wrench are required.
NOTE:
Rear hanger brackets must be assembled
with the bend to the inside only as shown in Figure 16.
Figure 16
4. If so equipped, remove the round belt guard
from the idler on tractor by removing the hairpin
clip. See Figure 17A or Figure 17B.
5. Remove the engine pulley belt guard by either
unscrewing the belt guard release and swinging
the engine pulley belt guard out of the way (see
Figure 17A), or removing the two long hex bolts
which act as belt keepers (see Figure 17B).
Figure 17
NOTE:
The belt guards and keepers may have
been removed when the deck was removed.
6. Position the carriage bracket assembly up in
place against tractor frame. See Figure 18 for
correct hole location. Secure with two hex bolts,
lock washers and hex nuts. Tighten securely.
(Hardware C)
Internal
Cotter Pin
Rear Hitch
Rod
Rear Hanger Bracket-R.H.
Bend To The Inside of Tractor
Engine
Pulley
Belt
Guard
Releas
e
Wire
Belt
Guard
Idler Pulley
Round
Belt
Guard
Hairpin Clip
Engine
Pulley
Idler Pulley
Hex Bolts
(Belt Keepers)
Round
Belt
Guard Hairpin
Clip
A
B
10
Figure 18
7. Place belt from carriage bracket assembly over
the engine pulley and around idler pulley as
shown in Figure 18. Roll the belt onto the
engine pulley.
8. Reassemble the round belt guard (if so
equipped) and the engine pulley belt keepers
removed in step 4 and step 5 or from deck
removal. Refer to Figure 17.
Figure 19
9. Now line up the tractor behind the snow thrower
and roll tractor over the snow thrower.
10. Secure the rear tubing to the hanger brackets
on the rear of the tractor using clevis pins, flat
washers and internal cotter pins. See Figure 20.
(Hardware H)
Figure 20
11. Lower the lift handle on tractor to lowest setting.
Lower front deck links to the lower mark on link
by unthreading. See Figure 21, inset.
Figure 21
12. Attach the front deck links on tractor to
attaching plates on center of tubing assemblies,
using two lift bracket pins, flat washers and
internal cotter pins. See Figure 21.
(Hardware I)
Use This Hole
Hex Bolt
Lock Washer
Hex Nut
Carriage
Bracket
Assembly
Engine
Pulley
Belt
Idler
Pulley
Carriage
Bracket
Assembly
Round
Belt
Guard
Hex Head
Belt Keeper
Flat
Washer
Rear
Hanger
Bracket
Clevis
Pin
Internal Cotter
Pin
Hex Bolt
Hex Nut
Lock Washer
Front
Deck
Link
Lift
Bracket
Pin
Flat Washer
Internal Cotter
Pin
Wood
Attaching
Plate
Set Front
Links at
this Mark
11
NOTE:
To aid in assembly of lift bracket pins, use
a block of wood to help lift tubing assembly for hole
alignment. See Figure 21.
13. To attach the snow thrower belt to pulley on
carriage bracket assembly, remove the hex
head belt keeper beside the pulley on the
carriage bracket assembly. Refer to Figure 19.
14. Place belt over pulley on carriage bracket
assembly. Reassemble the hex head belt
keeper (right hand side).
15. Raise the lift lever on tractor.
16. Attach helper springs to the unit as follows.
IMPORTANT:
If there is a heat shield on the
front of your tractor attached by the same self-
tapping screws you are removing, the heat shield
must be removed in order to attach the helper
springs.
Be certain to reassemble the heat shield
when the snow thrower attachment is removed.
• Remove all four self-tapping screws and use
(Hardware M).
• Place one flat washer on hex bolt, then place
round end of helper spring onto hex bolt. The
washer will keep the spring from jumping over
the head of the bolt.
• Thread hex nut onto bolt, washer, and spring
assembly.
If the grille on your tractor is mounted using a grille
mounting bracket(s), remove the top self-tapping
screw which secures the grille mounting bracket on
one side of the unit, and screw hex bolt into the hole
(head of bolt is toward the outside of the tractor).
See Figure 22.
Secure with a hex nut on the inside of the grille
mounting bracket.
Figure 22
• If there is no grille mounting bracket on your
unit, place hex bolt with hex nut into the hole
in the side plate shown in Figure 22. Secure
with hex nut from underside.
• Repeat on other side of tractor.
• Raise the lift lever on the tractor to the
highest setting.
Place belleville washers underneath helper spring
brackets (cupped side of washer goes against the
bracket). Thread the full thread hex bolts through
washers, brackets and into springs. Tighten until
springs are against brackets. See Figure 23.
(Hardware J)
Figure 23
INSTALLING REAR DEFLECTOR
A reflector has been included with this attachment.
Please install the reflector in position a shown in
Figure 24.
Figure 24
1. Clean surface of fender.
2. Peel protective paper from reflector.
3. Place in position and press on.
Hex
Nuts
Hex
Bolt
Hex Bolt
Nuts And
Washer
Helper
Spring
Belleville
Washer
Hex Bolt
Helper
Spring
Bracket
Reflector
(P/N 730-3000)
12
SECTION 7: CONTROLS
The snow thrower controls are conveniently located
at the operator’s position on the tractor.
Figure 25
LIFT LEVER
The lift lever which is used to raise and lower snow
thrower is located on the right hand side of tractor. To
raise snow thrower, pull back on lift lever until it
reaches over center stop. To lower snow thrower,
push lift lever forward slowly until snow thrower
reaches ground level.
DISCHARGE CHUTE CONTROL CRANK
The discharge chute control crank is located on the
left hand side of the snow thrower. The chute crank
controls the direction in which snow is thrown. The
discharge radius is 180 degrees. Turn crank to the
right to direct snow to the right hand side. Turn to the
left to direct snow to left hand side.
PTO LEVER
The PTO lever is located on the right hand side of the
tractor. The spirals are engaged by lifting the PTO
lever to the ENGAGED position. Lower the PTO lever
to the DISENGAGED position to stop the snow
throwing action.
CHUTE TILT HANDLE
The chute tilt handle assembly is also located on the
left hand side of the snow thrower assembly. The
upper chute of the discharge chute assembly pivots
downward when the tilt handle is pushed forward,
decreasing the distance snow is thrown. Pulling the
handle backwards pivots the upper chute upward,
increasing the distance snow is thrown. Refer to
Figure 25.
SECTION 8: OPERATION
The snow thrower is capable of handling heavy
snow conditions. If given the opportunity to function
within reasonable requirements, it should give many
years of service. Become fully familiar with all
aspects of both the tractor and snow thrower prior to
its usage. Do not remove any guards or covers
while operating tractor and snow thrower.
BEFORE OPERATING SNOW THROWER
1. Make certain to change the oil in the tractor
engine to winter weight oil (SAE 5W-20 or 5W-30).
2. Make certain all nuts and bolts are tightened
securely. Be sure that all parts are properly
assembled.
3. Test all controls for smooth operation.
a.Discharge chute control crank
b.Lift lever
c. PTO lever
4. Check the tractor and snow thrower to make
certain both are in good operating condition.
5. Fill gas tank out-of-doors. Avoid spilling
gasoline over engine. Do not fill tank while
engine is running. Wipe up any spilled gas.
OPERATING SPEED
Start tractor engine and run at full throttle. The spiral
speed is directly related to engine speed. For
maximum snow removal and discharge, maintain
high engine R.P.M. (full throttle). The tractor’s
forward speed is controlled by selecting one of the
forward speeds. It is advisable to operate the tractor
at a slow ground speed (1st gear) for safe and
efficient snow removal. Use the lift lever to lower the
snow thrower to the ground. Engage the spirals
using the PTO lever.
SNOW CONDITIONS
Snow removal conditions vary greatly from light
fluffy snowfall to the wet heavy snow. Therefore
operating instructions must be flexible to fit
conditions encountered. The operator must adapt
the tractor and snow thrower to depth of snow, wind
direction, temperature, and surface conditions.
Upper Chute
Discharge
Chute
Chute Tilt
Handle
Chute
Crank
Rod
13
DEEP OR DRIFTED SNOW
In deep, drifted, or banked snow, it will be
necessary to use full throttle and first speed. Drive
the spiral into the snow, disengage clutch and allow
spiral to clear the snow. Repeat this method until a
path is cleared. On the second pass, overlap the
first enough to allow the spiral to handle the snow
without repeated clutching and declutching of the
tractor.
In extremely deep snow, raise thrower from the
ground and drive tractor ahead in the deep snow to
remove top layers first. Do not drive tractor into
snow bank where snow has not been removed to
ground level. Disengage tractor clutch and allow
thrower to clear the snow. Reverse tractor and
lower thrower to the ground. Drive tractor ahead
and repeat process to remove balance of snow.
Working with repeated passes into and out of drifts
will eventually move even the deepest of snow piles.
IMPORTANT: If snow thrower chute becomes
plugged with snow or spirals are jammed or bent
from hitting a solid object, disengage snow thrower
immediately and stop tractor engine. Disconnect
spark plug wire(s) from spark plug(s), then clear the
snow from chute or remove foreign object from
spirals. If spirals have been damaged, repair the
damage. Then reconnect spark plug wire(s), and
resume operation.
OPERATING TIPS
1. Whenever possible, discharge snow downwind.
2. Do not attempt to remove ice or hard packed
frozen snow.
3. Always overlap each pass slightly to assure
complete snow removal.
4. A frozen or stuck spiral or chute must be broken
loose or thawed with care. When attempting to
loosen frozen or jammed spiral, shut off tractor
engine and disconnect spark plug wire. Never
attempt to clear snow thrower at any time with
engine running.
NOTE: When snow thrower and tractor are not in
use, lower snow thrower to the ground to prevent
excess weight on front tires.
USE OF TIRE CHAINS
Tire chains should always be used when extra
traction is needed. They add maneuverability in
handling snow removal jobs.
SECTION 9: ADJUSTMENTS
WARNING: When making skid shoe
or chute deflector adjustments, turn
lawn tractor engine off.
SKID SHOE ADJUSTMENT
The skid shoes are mounted on each side of spiral
housing. These regulate the distance the shave
plate is raised above the plowing surface. When
removing snow from a gravel driveway or an
uneven surface, it is advisable to keep shave plate
as high above the surface as possible to prevent
possible damage to spiral. On blacktop or concrete
surface, keep shave plate as close to the surface as
possible. Skid shoes can be adjusted so that shave
plate will rest directly on the surface.
Raise snow thrower off the ground and place a
block at each end of shave plate. Loosen hex nuts
securing skid shoes to spiral housing. Move skid
shoes up or down to desired position and tighten
nuts securely. Adjust both skid shoes to the same
height to keep spiral level. See Figure 26.
Figure 26
14
SECTION 10: MAINTENANCE
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. Skid shoes are reversible for longer life.
The skid shoes may also be inverted to extend their
life even further.
Replace shave plate and skid shoes before wear is
excessive. Failure to do so will result in damage to
the spiral housing.
AUGERS
The augers are secured to spiral shaft with two hex
bolts and hex lock nuts. If you hit a foreign object or
ice jam, the snow thrower is designed so that the
hex bolts will shear.
If the augers will not turn, check to see if the hex
bolts have sheared. Two replacement hex bolts and
hex lock nuts have been provided with the snow
thrower. For future use, order part number 710-
0891 (hex bolt 5/16-18 x 1.75" long) and 712-0429
(hex insert lock nut 5/16-18 thread).
LUBRICATION
Pivot and friction points: To maintain smooth and
free operation, apply a few drops of No. 30 oil as
required to all pivot and friction points.
SECTION 11: OFF-SEASON STORAGE
At the end of the snow season, the following steps
are recommended:
1. Remove snow thrower assembly from tractor. If
a heat shield was removed from the front of
your tractor, be certain to reassemble it.
2. Wash off any salt deposit which may have dried
on the thrower and housing. Paint or cover
exposed metal with a light coat of oil.
3. Store thrower in a dry place. Do not store next
to corrosive materials, such as fertilizer.
NOTE: When storing any type of power equipment
in an unventilated or metal storage shed, care
should be taken to rustproof the equipment. Using a
light oil or silicone, coat the equipment, especially
any springs, bearings and cables.
15
SECTION 12: Illustrated Parts
20
6
16
9
18
23
3
4
22
17
2
23
15
25
11
8
35
5
7
31
27
16
29
13
10
6
23
18
33
19
26
16
27
19
26
1
14
28
34
17
21
24
17
12
23
18
30
REF.
NO.
PART
NO. QTY. DESCRIPTION
1 17304 2 Lift Asm:Deck Link:Front
2 684-0110 1 Brkt Asm:Hsg.
3 703-2869 1 Cvr:Belt
4 703-2870 1 Brkt:Cvr:Belt
5 710-0182 2 HHCS:1/2-13:3.00:GR5:Std.
6 710-0514 6 HHCS:3/8-16:1.00:GR5:Std.
7 710-0521 6 HHCS:3/8-16:3.00:GR8:Std.
8 710-0607 4 Scr. TT 5/16-18:.50 HxIndWsh.
9 710-0653 4 Scr:TT:1/4-20:.375:HxIndWsh.
10 710-0786 4 HHCS:1/2-13:4.00:Gr5:Std.
11 710-0959 2 HHCS:5/16-18:1.50:Gr5:Spec.
12 710-3073 2 HHCS:5/16-18: 2.50:Gr5:Std.
13 711-0231 2 Pin:Clv:.50 Dia. x 1.59 Lg.
14 711-0332 2 Pin:Clv:.50 Dia. x .78 Lg.
15 711-0509 2 Ins:Spring
16 712-0206 6 Nut:1/2-13:GrA:Hx
17 712-3010 4 Nut:5/16-18:GrB:Hx
18 712-3017 8 Nut:3/8-16:GrB:Hx
19 714-0101 4 Pin:Cot:Int .08 x 1.42
20 714-0147 4 Pin:Cot:.125 x 1.75 Internal
21 732-0813 2 Spr:Extn:1.25 O.D. x 7.25
22 736-0119 2 Wash:Lock:5/16:Regular Duty
23 736-0169 12 Wash:Lock:3/8:Regular Duty
24 736-0231 2 Wash:Fl: .344 I.D. x 1.125 O.D.
25 736-0242 2 Wash:Belvl:.340 I.D. X .872 O.D.
26 736-0272 4 Wash:Fl:.510 X 1.00 X .060
27 736-0921 6 Wash:Lock:1/2:Regular Duty
28 750-1057 2 Tube:Lift:2.0 x 2.0 x 42.0 Lg.
29 750-1059 2 Tube:Lift:1.0 x 2.0 x 43.0 Lg.
30 784-5148A 1 Guide Bracket Assy.
31 784-5199 2 Brkt:Lift Plate
32 784-5203 1 Brkt:Hngr:RR LH
33 784-5204 1 Brkt:Hngr:RR RH
34 784-5211B 2 Brkt:Idlr:Supt.
35 784-5686 2 Brkt:Spr:Mt.
REF.
NO.
PART
NO. QTY. DESCRIPTION
16
DRIVE ASSEMBLY
REF.
NO
PART
NO. QTY. DESCRIPTION
1 684-0113 1 Box Asm:Spkt.
2 710-0521 1 HHCS:3/8-16:3.00:Gr8:Std.
3 710-0696 1 HHCS:3/8-24:.875:Gr8:Std.
4 712-0116 2 Nut:Jam:3/8-24:Ins Lock
5 712-0266 1 Hex Cent L-Jam Nut 3/8-16
6 712-3017 1 Hx. Nut:3/8-16:GrB:
7 732-0491 1 Spring:Extn:.87 Dia. x 6.00 Lg.
8 736-0169 3 Wash:Lock:3/8:Regular Dh
9 736-0235 1 Flat Wash. .406 I.D. x 1.25 O.D.
10 736-0247 2 Flat Wash. .406 I.D. x 1 1/4 O.D.
11 738-0347 1 Shld Spacer .625 I.D. x .169
12 750-0668 2 Spacer .32 I.D. x .625 O.D. x 1.74
13 754-0458 1 Belt:V Typ:A Sect. x 126.0 Poly
14 756-0487 2 V-Belt Idler-.38 I.D. x 4.0 Dia.
15 756-0496 1 Pulley :Dr.:7.00 Dia.
16 784-5200 1 Brkt Asm:Idlr.
17 710-3279 1 HHCS:3/8-16:4.25:Gr.5
17
CARRIAGE ASSEMBLY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
22
23
24
25
26
27
20
4
15
16
25
15
27
15
12
REF.
NO.
PART
NO. QTY. DESCRIPTION
1 05406 1 Belt Guard
2 14088B 1 Plt:Spdl:Spcr.
3 15297A 1 Open Brg. Housing 1.85
4 710-0591 2 HHCS:3/8-24:1.00:Gr.5:Lock
5 710-0624 3 HHCS:5/16-24:1.50:Gr.5:Std.
6 710-3011 1 HHCS:3/8-16:2.25:Gr.5:Std.
7 711-0396 1 Spcr:.385 x .623 x .750 Lg.
8 711-0747 1 Pin:Gde:.250 Dia. x 1.68 Lg.
9 711-0793 1 Pin:Clevis:.375 Dia. x 2.63 Lg.
10 712-0107 1 Nut:Lock:1/4-20
11 712-0123 3 Hx. Nut:5/16-24:Gr.A:
12 712-0798 3 Hx. Nut:3/8-16:Gr. A
13 714-0161 2 Key:Hi-Pro 3/16 X 5/8
14 736-0119 3 Wash:Lock: 5/16:Regular Duty
15 736-0169 5 Wash:Lock:3/8:Regular Duty
16 736-0247 2 Flat Washer .406 I.D. x 1 1/4 O.D.
17 736-0329 1 Wash:Lock:1/4:Regular Duty
18 738-0680 1 Shaft- .787 Dia. x 3.81 Lg.
19 741-0163A 1 Hsg. Asm.:Bearing
20 750-0456 1 Spacer .790 I.D. x .347 Lg.
22 750-0660 1 Spacer .80 I.D. x 1.00 O.D. x .900
23 754-0229 1 Belt: V: 1/2 x 52.00 Lg.
24 756-0405 1 Fl-Idler w/ Flanges 3.75 O.D.
25 756-0438 2 Pulley:V Typ:6.50 O.D.
26 784-5146 1 Brkt: Carriage
27 710-0514 2 HHCS. 3/8-16:1.00 Gr.5
REF.
NO.
PART
NO. QTY. DESCRIPTION
18
UPPER CHUTE AND CHUTE CONTROLS
35
37
18
17
2
25
15
13
27
29
28
30
16
33
32
34
24
14
5
11
3
23
4
8
11
26
26
12
6
36
11
7
22
21
19
9
10
31
1
20
12
27
REF.
NO.
PART
NO. QTY. DESCRIPTION
1 784-5604 1 Hndl:Tilt:Chute
2 784-5594 1 Cable Bracket
3 784-5401 1 CHute Crank Assy.18.0 Lg. - RH
4 784-5149 1 Block Ass’y:Joint
5 784-5123 1 Chute Crank Bracket
6 749-3072 1 Tube:Supt:Crank
7 747-0931 1 Rod:Crk:Chute .380 Dia. x 28.0 Lg.
8 747-0481A 1 Eye Bolt 5/16-18 x 3.0 Lg.
9 746-0903 1 Cable:Chute:w/Culp, 66 Lg.
10 746-0902 1 Cable:Chute 66 Lg.
11 741-0475 3 Plastic Bushing .380 I.D.
12 736-0242 2 Wash:Belvl:.340 I.D. x .872 O.D.
13 736-0231 1 Wash:Fl:.344 I.D.:1.125 O.D.:.12
14 736-0140 1 Fl. Wash .385 I.D. x .62 O.D. x .06
15 731-1319 1 Spcr:Chut:Pivot
16 731-1318 1 Chut:.:Extended 6" Dia.
17 731-1313B 2 Gde:Cable:Chute Tilt
18 731-0849 1 6" Dia. Upper Chute
19 726-0100 1 Cap:Push x 3/8 Rod
20 720-0232 1 Knob:Shift:1.60 O.D. x 1.56
21 720-0201A 1 Knob:Crk:1.00 Dia. x 3.2 Chute
22 715-0138 1 Pin:Roll:1/8 O.D. :.63
23 715-0129 1 Spiral Pin - 1/8 Dia. x .812 Lg.
24 714-0507 1 Pin:Cot: 3/32 x .750
25 712-0429 1 Nut:Hx.: 5/16-18:Gr.C:Lock
26 712-0267 2 Hx. Nut:5/16-18:Gr.A:
27 712-0158 2 Nut:Lock:5/16-18:Cen.
28 710-0896 1 Scr:1/4-14:.625:HxIndWsh
29 710-0458 1 Carriage Bolt 5/16-18 X 1.75
30 710-0276 1 Scr:Carr:5/16-18:1.00
31 603-0302 1 Asm:Chute Tilt Brkt
32 731-0851A 3 Chute Flange Keeper
33 710-3015 6 Hx. Bolt 1/4-20:.75 Lg.
34 712-3027 6 Hx. Flg. Nut 1/4-20
35 710-0262 2 Carr. Bolt 5/16-18:1.50 Gr.2
36 712-3004A 2 Nut-Lock 5/16-18 Gr.5
37 725-0157 1 Cable Tie
REF.
NO.
PART
NO. QTY. DESCRIPTION
19
BLOWER ASSEMBLY
2
2
19
6
3
9
13
16
6
4
9
18
10
5
35
14
12
4
6
2
9
15
6
2
13
7
17
27
32
37
11
21
26
22
29
36
25
30
23
20
22
22
22
39
29
31
29
29
24
34
38
28
33
25
23
3
40
34
34
41
41
11
REF.
NO.
PART
NO. QTY. DESCRIPTION
1 784-5710 1 Plt:Supt.
2 741-0494 4 Bush:Flg:1.05 I.D. x 1.16 O.D.
3 741-0192 2 Brg:Flg:w/Flats
4 738-0492 1 Spiral Axle 1.00 X 44.12
5 736-0270 2 Wash:Bell:.265 x .75 x .062
6 736-0250 4 Fl. . 1.00 I.D. x 1.75 O.D. X .1
7 715-0118 1 Spring Pin Spir 5/16 Dia. X 1.7
9 712-0429 3 Hx. Nut:: 5/16-18:Gr.C:Lock
10 712-0138 2 Hx. Nut:1/4-28:Gr.A
11 710-0604 6 Scr.TT HxIndWash 5/16-18:.625 Lg
12 710-3038 1 HHCS:5/16-18:.875:Gr.5:Std.
13 710-0891 2 Shear Bolt 5/16 - 18 x 1-3/4
14 710-0412 2 HHCS:1/4-28:.75:Gr.5:Std.
15 684-0073 1 Sprl. Asm:LH:16"
16 684-0072 1 Sprl. Asm:RH
17 684-0069 1 Impeller Ass’y:16"
18 618-0244 1 Gear Asm:Auger
19 05845B 2 Hsg:Brg:1.50 DBL-T
20 684-0068 1 Hsg Asm:SprL:45"
21 710-0389 4 Carriage Bolt 3/8-16 x .75
22 710-0451 12 Bolt:Car:5/16-18:.75
23 710-0520 2 HHCS:3/8-16:1.50:Gr.5:Std.
24 710-0726 1 Scr:AB:5/16-12:0:.750: HxIndWsh
25 710-3015 2 HHCS:1/4-20:.75:Gr.5:Std.
26 710-3168 2 Bolt:Carr:3/8-16
27 712-0130 8 Nut:Hx.:3/8-16:Gr.C:Lock
28 712-0324 2 Nut:Hx: 1/4-20:Gr.C:Lock
29 712-0429 12 Nut:Hx: 5/16-18:Gr.C:Lock
30 712-3010 4 Hx. Nut: 5/16-18:Gr.B
31 731-1696 1 Chute: Adap:6" Dia.
32 736-0105 6 Wash:Spr:.401 x .870 x .063
33 736-0119 4 Wash:Lock: 5/16:Regular Duty
34 736-0242 1 Wash: Belvl:.340 I.D. x .872 O.D.
35 784-5076 1 Gear Housg.Supp.Brkt
36 784-5696 1 Plt: Shave
37 784-5697 2 Shoe:Skid
38 784-5703 1 Brkt:Mt:Brg.
39 784-5711 1 Brkt:Chut:6.0
40 714-0135 1 Woodruff Key 1/4 x 3/4 Dia.
41 736-0242 6 Wash. Bell .340 I.D. x .872 O.D.
REF.
NO.
PART
NO. QTY. DESCRIPTION
20
AUGER GEAR ASSEMBLY
4
10
18
17
11
7
17
13
13
3
2
1
8
9
14
14
5
16
6
20
19
REF.
NO.
PART
NO. QTY. DESCRIPTION
1 618-0247 1 Auger Housing Ass’y, L.H.
2 618-0246 1 Auger Housing Ass’y, R.H.
3 710-1260 7 Scr. TT HxWash. 5/16-18:.75” Lg.
4 711-1097 1 Auger Input Shaft
5 714-0126 1 Key, Hi Pro 3/16 x 3/4 Dia.
6 714-0135 1 Key, Woodruff #91:1/4 x 3/4
7 716-0111 1 Retaining Ring
8 717-0299 1 Worm Gear Double Thread LH
9 717-1425 1 Worm Gear LH
10 721-0325 1 Plug
11 721-0145 1 Oil Seal
12 721-0328 .02 Sealant: Ultra Grey Loctite 5699
(Not Illustrated)
13 736-0291 3 Wash. Flat
.88 I.D. x 1.380 O.D. x .125
14 736-0266 2 Wash. Fl. 1.52 I.D. x 2.0 O.D. x .30
15 737-0300 .16 Grease, Benalene 920 (Not Illust.)
16 738-0275 1 Worm Gear Shaft
17 741-0217 2 Sleeve
18 741-0184 1 Thrust Bearing
19 721-0146 2 Oil Seal
20 741-0670 2 Flange Bearing
618-0244 1 Auger Gear Ass’y. - Complete
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