OWNER’S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
and ILLUSTRATED PARTS MANUAL
Model SB36 Single-Stage Snowblower
™
Please Read and Save These Instructions Effective Date: 04-01-99
For Safety, Read All Safety and Operation P/N 5600-1
Instructions Prior to Operating Machine Price $5.00
Foreword
Thank you. . .for purchasing a Walker snowblower. Every effort has been made to provide you with
the most reliable product on the market, and we are sure you will be among our many satisfied customers. If for any rea son thi s produ ct d oes no t per fo rm to y our expectations, please contact us a t
(970) 221-5614. Every customer is important to us. Your satisfaction is our goal.
Please. . .read thi s manual thoroughl y! This manual is to be use d in conjunction with the mo wer
owner’s manual and the engine manufacturer's manual for the specific engine on the mower
model you are using. Before you ope rate your new snowblow er, please read this entire manual.
Some of the information is crucial for proper operation and maintenance of this product - it will help
protect your investme nt and ensure that the sno wblower performs to your s atisfaction. Some o f
the information is impor tant to your saf ety and must be read and under stood to help prevent po ssible injury to the operator or others. If anything in this ma nua l i s co nfus i ng o r har d to u nder stand,
please call our service department, at (970) 221-5614, for clarification before operating or servicing this product.
This manual covers the Model SB36 Single-Stage Snowblower.
All shields and guards must be in place for the proper and safe operation of this snowblower.
Where they are shown removed in this manual, it is for illustration purposes only. Do not operate
this product unless all shields and guards are in place.
Specifications given are based on the latest information available at the time this manual was
produced.
Walker Mfg. Co. is continuall y str iv ing to improve the desi gn and per formance of its products. We
reserve the right t o m ake chan ges i n sp ecifi catio ns and desi gn wi thout th ereby i ncur ring an y obl igation relative to previously manufactured products.
Sincerely,
WALKER MANUFACTURING COMPANY
Bob Walker, President
Table of Contents
Owner’s Manual
General Information________________ 1
HIGHLIGHTED INFORMATION _____________ 1
GLOSSARY ____________________________ 1
IDENTIFYING NUMBER LOCATIONS________ 1
SERVICING OF DRIVETRAIN GEARBOX ____ 2
UNIT DESCRIPTION _____________________ 2
Specifications _______________________ 3
GROUND CLEARANCE IN RAISED POSITION_3
DIMENSIONS ___________________________ 3
BLOWER SPOUT________________________ 3
AUGER DIMENSIONS ____________________ 3
WEIGHT _______________________________ 3
DRIVE SYSTEM _________________________ 3
SCRAPER______________________________ 3
TRACTOR COUNTERWEIGHT _____________ 3
Component Identification___________ 4 Safety Instructions __________________ 6
Operator’s Notes___________________ 20 Maintenance Instructions__________ 21
MAINTENANCE SCHEDULE CHART_______ 21
LUBRICATION _________________________ 22
Grease Fitting and Oil Point Lubrication__ 22
PTO U-Joint _________________________ 22
Gearbox Lubrication __________________ 22
Drive Chain Lubrication _______________ 23
REPLACING/REPAIRING ________________ 26
Gearbox Replacement_________________ 26
Drive Chain__________________________ 27
Sprockets ___________________________ 28
Drive Shaft Sprocket Replacement ______ 28
Auger Sprocket Replacement __________ 29
Scraper Blade _______________________ 31
Flexible Coupling Spider ______________ 31
U-Joint Shear Pin_____________________ 31
ADJUSTMENTS________________________ 31
Drive Chain Tension __________________ 31
Gauge Wheels or Skid Shoes___________ 32
Removal and Storage Instructions_33
BEFORE OPERATING____________________ 6
OPERATING ____________________________ 7
MAINTENANCE _________________________ 8
SAFETY, CONTROL,
AND INSTRUCTION DECALS ______________ 9
Assembly Instructions _____________ 10
SETUP AND INSTALLATION______________ 10
PREOPERATING CHECKLIST ____________ 14
Operating Instructions_____________ 15
CONTROL IDENTIFICATION, LOCATION,
AND FUNCTION________________________ 15
Tra ctor Controls______________________ 15
Lift Handle___________________________ 15
Foot Trigger _________________________ 16
Spout Position Control Handle__________ 16
Deflector Position Control Handle _______ 16
STARTING THE MACHINE _______________ 16
ENGAGING THE SNOWBLOWER _________ 16
STOPPING THE MACHINE _______________ 17
RECOMMENDATIONS FOR SNOWBLOWING_18
REMOVING SNOW______________________ 18
Throw Snow to One Side_______________ 18
Throw Snow to Both Sides _____________ 19
CLOGGING CHECKLIST_________________ 19
REMOVAL ____________________________ 33
END OF SEASON STORAGE _____________ 33
Illustrated Parts Manual
MAIN BODY COMPONENTS______________ 34
AUGER AND DRIVETRAIN COMPONENTS _36
KEY TO ABBREVIATIONS
USED IN ILLUSTRATED PARTS LIST ______ 38
Warranty___________________________ 39
General Information
HIGHLIGHTED INFORMATION
Walker Manufacturing recommends that any service requiring special training or tools be performed
by an authorized Walker Mower Dealer. There are
several general practices to be aware of in the area
of safety. Most accidents associated with the operation or maintenance of a Walker product are
caused by disregardi ng bas ic saf ety pr ecautio ns or
specific warnings. Such accidents, in most cases,
can be prevented by being aware of the dangers
present.
Information of special importance has been highlighted in bold type in this man ual. Refer to Safety
Instructions for the mean ing s of DANGE R, WARNING, CAUTION, IMPORTANT, and NOTE.
GLOSSARY
There are many ter ms th at ar e ei ther uni que to th is
equipment or that ar e used as acronyms. T he following terms and their defin iti ons wil l help whi le using this manual.
• FORW ARD SPEED CONTROL (FSC) controls
the maximum forward speed of the tractor; functioning as a cruise control.
IDENTIFYING NUMBER LOCATIONS
The snowblower serial number is stamped on the
right side of the frame betwe en the mounting tube
and the foot trigger.
Model and serial numbe rs are helpf ul when obtaining replacement parts and maintenance assistance.
For ready reference, please record these numbers
in the space provided.
Snowblower Model No. ___________________
Snowblower Serial No. ___________________
Date of Purchase ________________________
Fill In By Purchaser
SB36
• LEFT HAND (LH) refers to the left-hand side of
the tractor when the opera tor is seated facing
forward in the tractor seat.
• MACHINE consists of the snowblower installed
on the tractor, functioning as a single unit.
• POWER TAKE-OFF (PTO) transmits engine
power to run the snowblower.
• RIGHT HAND (RH) refers to the right-hand side
of the tractor when the operator is seated facing
forward in the tractor seat.
• TRACTOR is the prime mover, including the en-
gine, drivetrain, o perator seat, and contr ols to
operate the snowblower.
Serial Number
Snowblower Serial Number Location
(Top View)
1
General Information
SERVICING OF DRIVETRAIN GEARBOX
Detailed servicing and repair of the gearbox used on
the snowblower drivetrain is not covered in this manual. Only routine maintenance and general service
instructions are provided. For the service of the gearbox during the limited warranty period, it is important
to find a local, authorized servicing agent of the component manufacturer. Any unauthorized work
done on this component during the warranty period
may void the warranty. If you have any difficulty
finding an authorized outlet or obtaining warranty
service, please contact our Service Department for
assistance:
Walker Manufacturing Company
5925 E. Harmony Road
Fort Collins, CO 80528
1-970-221-5614
A service manual is available for the gearbox from:
Tecumseh Products Co.
900 North Street
Grafton, Wl 53024
UNIT DESCRIPTION
The SB36 is a 36-inch (91.4 cm), single-stage snowblower that attaches to any of the Walker tractor s.
The SB36 throws snow up to 20 ft (6 m). It is raised
and lowered manually with a lever and a foot trigger.
The blower spout is controlled with a simple position
control handle. The SB36 is powered by the tractor
PTO through the PTO shaft, right angle gearbox and
chain final drive to auger. Tire chains and a soft cab
are available as optional equipment.
2
Specifications
MODEL SB36
GROUND CLEARANCE IN RAISED POSITION 4-1/2 in. (11 cm) DIMENSIONS
Height 38 in. (97 cm)
Width 40-1/2 in. (103 cm)
Length (Excluding PTO Shaft) 32-3/4 in. (83 cm)
Overall Length Installed on Tractor (Model MC/MS) 89 in. (226 cm)
BLOWER SPOUT 6 in. (15 cm) Spout Position Adjustment 180° (Side-to-Side)
AUGER DIMENSIONS
Diameter 16 in. (41 cm )
Blade Depth 3-1/2 in. (9 cm)
Flighting Thickness 13 gauge (2 mm)
WEIGHT 185 lb (84 kg) DRIVE SYSTEM
Gearbox Peerless Right Angle
Final Drive #40 Roller Chain
Maximum Auger Speed 825 RPM
Maximum PTO Speed 2900 RPM
SCRAPER
Scraper Blade 1/8 in. (3 mm) Hardened Steel
Blade, Replaceable
Scraper Height Adjustable Steel Gauge Wheels
or Optional Skid Shoes
TRACTOR COUNTERWEIGHT 80 lb (36 kg) on Rear
NOTE: The manufacturer reserves the right to make changes in specifications shown herein at any time
without notice or obligation.
3
Component Identification
NOTE: Control Identification shown in
Operating Instructions section
and in Illustrated Parts Manual.
Deflector
Snowblower
Housing
Removable Chain
Guard Cover
Footrest
Spout Position
Control Handle
Spout
Removable Cover
(PTO and Lift Mechanism)
Foot Trigger
Lift
Handle
Footrest
Wheel Guard
Wheel Guard
Mounting
Tube Socket
Lift Chain
Counterweight
Spring
4
PTO Shaft
Rear View (Not Installed)
Counterweight
Spring
Mounting
Tube Socket
Lift Chain
Component Identification
Lift Handle Pivot Grease Fittings
Flexible Coupling
Auger Drive
Chain
Gauge
Wheel
Counterweight
Spring Hook Tab
Foot Trigger Piv ot
Right Angle Gearbox
Counterweight
Spring Hook Tab
Gauge
Scraper BladeAuger
Wheel
Bottom View (Not Installed)
5
Safety Instructions
Pay particular attentio n to any information labeled
DANGER, WARNING, CAUTION, IMPORTANT,
and NOTE in this manual.
When you see the Safety Alert Symbol ( ),
read, understand, and follow the instr uctions. Failure to comply with safety instructions may result in
personal injury.
The seriousness or degree of imp ortance of each
type of information is defined as follows:
DANGER
An IMMEDIATE hazard that WILL result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
WARNING
A POTENTIAL hazard that COULD result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
Walker Manufacturing cannot predict every potentially dangerous situation. Therefore, items labeled
as such in this manual do not cover all conceivable
situations. Any person using procedur es, tools, or
control techniques not recommended by Walker
Manufacturing must take full responsibility for safety.
The Walker Tractor and Snowblower attachment
have been designed wi th many safety features to
protect the operator from personal harm or injury.
However, it is necessary for the operator to use safe
operating procedures at all times. Failure to follow
safety instructions contained in this manual
may result in personal injury or damage to
equipment or property.
If you have any questions concerning setup, operation, maintenance, or safety, please contact your
authorized Walker Mower Dealer or call Walker
Manufacturing Company at (970) 221-5614.
BEFORE OPERATING
1. Read and understand the contents of this
OWNER'S MANUAL before operating the
snowblower. Become thoroughly famili ar with
all controls and how to stop the machine and
disengage the controls quickly. Replacement
Owner's Manuals are avai lable by sending the
Model and Serial Number to:
CAUTION
Possible hazards or unsafe practices that
MAY result in MODERATE personal injury
or property damage, or machine damage, if
warning is ignored and proper safe ty precautions are not taken.
IMPORTANT: Identifies mechanical information de-
manding special attention, since it deals with the possibility of damaging a part or parts of the machine.
NOTE: Identifi es information worthy of special attention.
Walker Manufacturing Company
5925 East Harmony Road
Fort Collins, CO 80528
2. Never allow children to operate or give rides
on the machine. Do not allow adults to ope rate without prop er instruction.
3. Do not allow anyone other than the operator on
the machine.
4. Ke ep e very on e, espec i all y chi ld ren an d pets, a
safe distance away from the area being cleaned.
Do not blow snow with bystanders in the area.
5. Do not ope rate the ma chine wearing sneakers,
tennis shoes, or similar lightweight footwear.
Wear substantial protective footwear that will
improve footing on slippery surfaces.
6. The snow can sometimes h ide objects tha t might
clog the chute, or otherwise cause damage.
Clear the area of doormats, sleds, boards, wires
and other debris.
6
Safety Instructions
7. Do not wear loose fitting clothing that could
get caught in moving parts. Always wear ade-
quate protective clothing including long pants.
Wearing safety glasses, safety shoes, and a
helmet is advisable and required by some local
ordinances and insurance regulations.
8. Prolonged exposure to loud noise can cause
impairment or loss of he aring. Oper ator hear-
ing protection is recommended. Wear a suitable hearing pro tective devi ce, such as e armuffs
or earplugs.
9. Keep all protecti ve sh ields an d saf ety devic -
es in place. If a protective shield, safety device,
or decal is da maged, unusabl e, or missing, re pair or replace it before operating the machine.
10. Be sure any interlock switches are function-
ing correctly so th e engine canno t be started
unless the Forward Speed Control lever is in
the NEUTRAL position and the PTO clutch is in
the DISENGAGED posit ion. Als o, the engine
should stop if the operator lifts off the seat wit h
the PTO clutch in the ENGAGED position.
11. Never attempt to make any adjustments
while the engine is running, except where specifically instructed to do so.
12. Handle gasoline or diesel fuel with care.
Gasoline is highly flammable and its vapors are
explosive:
a. Use an approved fuel container.
b. Never add fuel to a run ning engine or ho t
engine (allow hot engine to cool several
minutes).
OPERATING
NOTE: Refer to the Walker Rider Lawnmowers
OWNER’S MANUAL for safety instructions for
operating the tractor.
1. Operate the mac hine only in dayl ight or in good
artificial light with good visibility of areas being
cleaned.
2. Sit on the seat when starting the engine and operating the ma chine. Keep feet on footrests at all
times when the tractor is moving and/or the auger is operating.
3. An inexpe rienced opera tor should learn to steer
(maneuver) the tractor with a slow engine
speed before attempting any snowblowing.
Be aware that, with the front mounted snowblower configurati on, the b ack of t he machin e swings
to the outside during turns.
4. Remember, for an emergen cy st op, th e forwar d
motion of the tractor can always be stopped by
pulling the Forward Speed Control (FSC) into
the NEUTRAL-PARK position.
5. Disengage the PTO clutch and put the FSC in
the NEUTRAL-PARK position before starting
the engine (an ig nition inter lock swi tch norm ally
prevents starting of the tr actor if these controls
are in the OPERATING position).
6. Do not run the engine in a confined area with-
out adequate ventilation. Exhaust fumes are
hazardous and can be deadly.
7. Do not carry passengers - maximum seating
capacity is one (1) person.
c. Keep matches, cigarettes, cigars, pipes,
open flames, or sparks away from the fuel
tank and fuel container.
d. Always fill the fuel tank outdoors using
care. Fill to about one inch from the top of
the tank. Use a funnel or spout to preven t
spilling.
e. Replace the machine fuel cap and container
cap securely a nd clean up any spi lled fuel
before starting the engine.
8. Make sure the aug er is cle ar of sno w or ice be fore engaging th e P TO clutch.
9. Be careful never to throw snow to wards people
or cars, and never al low anyone in front of the
snowblower.
10. Watch out for hazards hidden under snow.
11. Avoid sudden start s or stop s. Before backing
the machine up, look to the rear to be sure no
one is behind the machine . Watch carefully for
traffic wh en cr oss ing or w ork i ng ne ar ro ad wa ys.
12. Disengage the PT O clutch w hen transport ing the
machine.
7
Safety Instructions
13. Do not clear snow across the face of slopes.
Use extreme caution when chang ing direction
on slopes. Do not attempt to clear steep slopes.
14. Never adjust gauge wheels or skid shoes
with the engine running. Before adjusting
height or se rvicing, disengage the PTO clu tch,
stop the engine, and remove the ignition key.
Wait for all movement to stop before getting off
the seat.
NOTE: The PTO brake should normally stop
drive line rotation within 5 seconds of disengaging the PTO clutch.
15. Do not operate the snowbl ower with the blower
spout assembly rem oved.
16. If snowblower clogs:
a. Disengage the PTO clutch, stop the en-
gine, and remove the ignition key before
leaving the seat.
b. LOOK to make sure PTO shaft and auger
movement has stopped before trying to unclog the snowblower.
MAINTENANCE
NOTE: Refer to the Walker Rider Lawnmowers
OWNER’S MANUAL for proper tractor maintenance procedures.
1. To prevent accidental starting of the engine
when servicing or adjusting the machine, remove the key from the ignition switch and disconnect the fuel solenoid wire [diesel engines] or
the spark plug wi re(s) [gas engines].
2. To reduce fire hazards, keep the engine free of
grass, leaves, exc essi ve g rea se , an d di rt .
3. Keep all nuts, bolts, and sc rew s tight to e nsure
the machine is in a safe, working condition.
4. Perform only maintenance instructions described in this manual. Unauthorized mainte-
nance operations or machine modifications may
result in unsafe operating conditions.
5. If the engine must be running to perform a maintenance adjustment, keep hands, feet, and
clothing away from moving parts. Do not
wear jewelry or loose clothing.
c. Disconnect the fuel solenoid wire [diesel
engines] or spark plug wire(s) [gas engines].
d. Do not use hands or feet to unclog the
snowblower - use a stick or similar tool.
17. If the auger strikes a solid object or the machine
begins to vibrate abnormally, immediately dis-
engage the PTO clutch, stop the engine, and
wait for all moving parts to stop. Disconnect
the fuel solenoid wire [diesel engines] or the
spark plug wire(s) [gas engines] to prevent accidental starting. Thoroughly inspect the snowblower and repair any da mage befo re restarti ng
the engine and operating the machine. Make
sure auger blades are in good condition and all
bolts are tigh t.
18. Do not touch the engine or muffler while the
engine is running or immediately after stopping
the engine. These areas may be hot enough to
cause serious burns.
19. When leaving the machine unattended, disengage the PTO clutc h, stop the engine, and remove the ignition key.
6. Always use proper engine service manuals
when working on the engine. Unauthorized
maintenance operations or modifications to the
engine may result in unsafe operating conditions.
7. Altering the mach ine in any manner which ad versely affects its operation, performance, durability, or use will VOID the wa rranty and may
cause hazardous cond it ions.
8. Never attempt to disconnect any safety devices
or defeat the pur p ose of th ese safet y d evi ces.
9. Do not chan ge th e engin e governo r setting s or
overspeed the engine. The governor has been
factory-set for ma ximum-safe engine operating
speed.
10. Use genuine factory replacement parts. Substitute parts may result in product malfunction
and possible in jury to the o perator and/or othe rs.
IMPORTANT: Keep all applicable manuals
immediately accessible to anyone who may
operate or service this machine.
8
Safety Instructions
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety, Control, and Instruction Decals are installed on the machine;
If any are missing, illegible, or damaged, a replacement should be ordered and installed before
putting the machi ne into operation. The Decal Par t Number is listed below and in the Parts Manual.
Two Places: Housing, Top LH Side (5685-1)
Blower Spout Deflector (5685-1)
Housing, Top RH Side (5685-2)
9
Assembly Instructions
SETUP AND INSTALLATION
1. Remove the mower deck from the tractor if
necessary. Refer to the appropriate Tractor
Owner’s Manual.
2. Attach each of the lift brackets to the predrilled
holes on the front chassis cross bar with a
5/16-18 x 1 in. bolt and a Whiz locknut. The
locknuts should be on the front sides of the
lift brackets. Refer to Lift Bracket Installation illustration. The RH bracket is attached us-
ing the existing battery pan mount bolt on
newer models. On ea rlier models, obtain the
5/16-18 x 1 in. bolt and nut locall y to attach th e
RH bracket.
5 in.
(127 mm)
Drill Two 5/16 in.
(8 mm) Holes
NOTE: Predrilled holes exist only on Walker
tractors built after 1984. For earlier mo dels, drill
two 5/16 in. (8 mm) holes in the front chassis
cross bar at the positions indicated in the Lift
Bracket Installation illustration.
IMPORTANT: For all 1980 to 1984 tractors,
remove the battery before drilling the RH
hole. Reinstall the battery after the lift brackets
have been installed. Refer to the appropriate
Tractor Owner’s Manual for battery remova l and
installation procedures.
3/4 in. (19 mm)
5 in.
(127 mm)
Tractor Front
Chassis Cross Bar
Whiz Locknut Lift Bracket
On Newer Models, Use Battery Pan
Mounting Bolt to Attach RH Bracket
5/16-18 x 1 in. Bolt
Lift Bracket Installation
10
Assembly Instructions
3. Remove the PTO cover (between the footrests).
Remove the shipping wire from the counterweight springs, plac e the lift handle in the UP
(back) position, and hook the counterweight
springs onto the hook tabs on the frame. T he
tabs are located below the right angl e gearbox
and drive shaft (refer to Counterweight Spring
Hook Tab Locations photo).
Remove PTO Cover Before
Attaching Springs To Frame
Spring Hook Tabs
b. Lightly grease spout mounting neck and
pivot area on the housing.
c. Slide spou t onto housing neck with sp out
point backwards (opposite normal direction) and then rotate to normal position.
d. Reinstall the bolt in the spout discharge
guard along with the spout rotation stop
as shown in the parts illustration (spout rotation stop included in hardware packet).
5. Lightly grease the tractor support arms.
6. Engage the snowblower mounting tubes on the
tractor support arms.
Support Arms
Counterweight Spring Hook
Tab Locations (bottom view)
4. Install the spout assembly.
a. Remove the center bolt and n ut mounting
the spout discharge guard.
Spout Discharge
Guard
Spout Rotation
Stop
Install Spout Assembly
Remove This Bolt
To Install Spout
Mounting Tubes
Engage Snowblower Mounting Tubes
with Tractor Support Arms
7. Slide the snowblower on to the tractor support
arms and connect the snowblower PTO shaft to
the tractor with the PTO quick coupler as follows:
NOTE: Model MS and earlier Model MC do not
have the PTO quick coupler. Use sliding joint to
connect tractor to snowblower PTO.
a. Place the pilot end of the snowblower PTO
shaft into the socket of the PTO quick coupler and rotate the PTO shaft until it is
aligned correctly with the socket in the
PTO quick coupler, then slide together.
Use arrows on the shaft and tube for correct alignment.
11
Assembly Instructions
PTO Sha f t
Pilot End
Arrows
PTO Coupler
Spline Connection
To Trac tor
Align PTO Shaft and PTO Coupler
(shown before engaging snowblower mounting
tubes with tractor support arms)
b. Slide snowblower assembly onto tractor.
Reaching under the tractor, pull the ring
back on the PTO quick couple r, slide the
coupler onto the tractor spline shaft, and
release the coupler ring.
IMPORTANT: To prevent damage to the machine,
make sure the P TO q uick cou pler is se curely locked
on the tractor, with the locking balls fully seat ed in
the groove and the r ing in the full forward pos ition
(refer to the Coupler Ring “Locked” Position photo). After installation, p ull on the shaf t to check for
security.
Spring-Loaded Coupler Ring
In Full Forward Position
Coupler Ring “Locked” Position
8. Insert the hitch pins in the ends of the tractor
support arms.
9. Pull the lift handle back , press the foot tr igger,
and push the snowblower lift handle forward
against the spring pressure into the DOWN (forward) position. Attach each of the li ft ch ain s to
the lift brackets with a 5/16-18 x 1-1/4 in. bolt
and an ESNA nut.
NOTE: Use a bungee cord or strap to secure lift
handle in forward position while connecting lift
chains to tractor.
10. Reinstall the PTO cover.
Lift Bracket
12
Pull Back Spring-Loaded
Coupler Ring
Installing PTO Quick Coupler
Lift Chain
Hitch Pin
Attach Lift Chains to Lift Brackets
Assembly Instructions
1 1. Pull the lift handle back to raise the snowblower
to the UP position.
Pull Back
Lift Handle
Snowblower in UP (Raised) Position
12. Pull the lift han dle back, press th e foot trigger,
and hold on to the lift handle while letting it
move forward to lower the snowbl ower to the
DOWN position.
13. Raise and lower the snowblower a few times to
check the operation and make sure it moves
smoothly. If not, grease the lift handle pivot
grease fittings located on the three tubes that
support the lift h andle pivot. Refer to LUBRI-
CATION of Lift Handle Pivot in Maintenance In-
structions.
14. Adjust the gauge whe els or ski d s ho es. Refe r
to ADJUSTMENTS of Gauge Wheels or Skid
Shoes in Maintenance Instructions.
15. To install the optional tire chains:
a. Remove the tractor wheels.
b. Attach the tire chains to the wheels.
c. Place the wh eel spacer plates on the lug
bolts. The wheel spacer plates provide
clearance for the chains bet ween the tires
and the tractor body.
d. Place the wheels back on the tractor.
e. Reinstall and tighten the lug bolts.
CAUTION
DO NOT release the lift handle before
releasing the foot trigger or before the
snowblower has reached the DOWN position.
Move Lift
Handle Forward
Snowblower in DOWN (Lowered) Position
16. For GHS (Grass Handling System) equipped
Walker tractors, install a blow er inta ke c over in
the blower intake tube. The cover “unloads” the
blower and seals the intake to effectively eli minate power loss and noise whe n the blower is
not being used.
Blower
Intake Cover
GHS Blower Intake Cover
17. For stability of the tractor when transporting with
the snowblower raised po sition, approximately
80 lb (36 kg) of counterweight should be installed on the tail of the tractor. Optional tail
weights for the various tractor models are available from your Walker dealer or a sandbag or
similar weight may be used.
13
Assembly Instructions
PREOPERATING CHECKLIST
Before operating the s nowblower for the first t ime,
and as a routine before daily operations, it is important to make sure th e snowblower is properly prepared and ready for operation. The following is a list
of items to be checked. (For a snowblower with frequent operation, some of these items will not need to
be checked every day, but the operato r should be
aware of the condition of each.)
CHECK TRACTOR PREOPERATING
CHECKLIST
Refer to the appropriate Tractor Owner’s Manual.
CHECK AUGER
• Make sure the auger is clear of snow and/or ice.
• Make sure the auger is free to rotate.
• Check that the auger flighting and paddle
blades are in good condition and not bent.
CHECK GEARBOX
CHECK LIFT HANDLE AND FOOT TRIGGER
OPERATION
Raise and lower the snowblower to make sure the lift
handle and foot trigger operate properly.
CHECK BLOWER SPOUT
• Make sure the blowe r spo ut is no t cl ogg ed wi th
snow and/or ice.
• Pull back on the sp out position control handle
and rotate the blower spout. Th e blower sp out
should rotate freely and should lock in place
when the spout position control handle is
released.
• Use the deflector position control handle and
raise and lower the deflector. The deflector
should move freely.
CHECK GAUGE WHEEL OR SKID SHOE
ADJUSTMENT
Refer to ADJUSTMENTS of Gauge Wheels or
Skid Shoes in Maintenance Instructions.
Refer to LUBRICATION of Gearbox in Maintenance
Instructions.
CHECK DRIVE CHAIN
• Refer to ADJUSTMENTS of Drive Chain in
Maintenance Instructions.
• Refer to LUBRICATION of Drive Chain in
Maintenance Instructions.
CHECK OPTIONAL TIRE CHAINS
Tire chains should always be used when o perating
the machine in icy conditions. If the tractor is
equipped with the optional tire chains, make sure
the chains are in g ood condition and are installed
properly.
CHECK TRACTOR TAILWEIGHT
Make sure 80 lb (36 kg) weight has been installed on
rear of tractor.
14
Operating Instructions
CONTROL IDENTIFICATION, LOCATION, AND FUNCTION
WARNING
Before operating the snowblower , become
familiar with the location and function of
all operator controls. Knowing the location, function, and operation of these controls is important for safe and efficient
operation of the snowblower.
Deflector Position
Control Handle
Spout Position
Control Handle
Tractor Controls
Refer to the appropriate Tractor Owner’s Manual
for complete information about tractor operating
controls.
Lift Handle
The lift handle is locat ed to the right of the operator
at the back of the snowblower right footrest. The lift
handle is used to raise and lower the snow blower.
Moving the lift handle forward lowers the snowblower; moving it backward raises the snowblower.
Deflector
Snowblower Operating Controls
Lift Handle
Foot Trigger
15
Operating Instructions
Foot Trigger
The foot trigger is located on the right footrest. The
foot trigger and lift handle are used together to lower
the snowblower. Pull the lift handle back, press the
foot trigger, and hold on to the lift handle while let-
ting it move forward to lower the snowblower.
IMPORTANT: To avoid the snowblower dropping
down with force, DO NOT release t he lift handle
while depressing the foot trigger or before the
snowblower has reached the DOWN position.
Spout Position Control Handle
The spout positi on control handle is lo cated on the
back of the blower spout. The control handle is used
to position the blower spout so snow is thrown in the
intended direction. Pull back on th e control han dle
and rotate the blower spout to th e chosen position .
Release the control handle to lock the blower spout
into position.
Deflector Position Control Handle
The deflector posi tion control handle is loca ted on
the back of the blower spout and deflector. The control handle, which slides through a spring-loaded
bracket, is used to position the deflector and control
the angle and distance snow is thrown. The springloaded bracket holds the control handle and deflector in position.
NOTE: For cold weather operation, follow the proper operating procedures in the appropriate Tractor
Owner’s Manual. Allow sufficient time for the tractor
engine to warm up before engaging the snowblower.
ENGAGING THE SNOWBLOWER
CAUTION
Before operating the snowblower, read
and understand all Safety Instructions and
Operating Instructions.
1. Set the engine throttle at about 1/3 speed. DO
NOT attempt to engage the PTO clutch at
high engine speeds. This will drastically s hort-
en drive belt life. Use only moderate engine
speed when engaging the PTO clutch.
2. Pull the PTO clutch lever SLOWLY to engage
the snowblower.
NOTE: For cold weather operation, allow sufficient time for the sno wblower com ponent s (i. e.,
gearbox oil) to warm up before beginning to
blow snow.
CAUTION
16
Sliding the control handle down raises the deflector
and throws snow a higher, longer distance; sliding
the control handle up lowers the deflector and
throws snow a lower, shorter distance.
NOTE: If the deflector cannot be moved, loosen the
bolts that fasten it to the blower spout.
STARTING THE MACHINE
CAUTION
ALWAYS disengage the PTO clutch and
put the FSC in the NEUTRAL-PARK position before starting the engine.
Refer to the appropriate Tractor Owner’s Manual for
tractor starting and operating procedures.
A safety interlock switch (seat switch) will
cause the engine to stop if the PTO clutch
is engaged and the operator is not in the
seat. The function of this switch should
be checked by the operator raising off
the seat and engaging the PTO clutch;
the eng ine should stop. If the switch is
not working, it should be repaired or replaced before operating the snowblower.
DO NOT disconnect the safety switch es;
they are for the operator's protection.
IMPORTANT: DO NOT engage the PTO clutch
when transporting the m achine. DO NOT engage
the PTO clutch with the PTO shaft disconnected
(the snowblower removed from the tractor).
Operating Instructions
CAUTION
If the auger strik es a solid object or the
machine begins to vibrate abnormally , immediately disengage the PTO clutch, stop
the engine, and wait for all moving parts
to stop. Disconnect the fuel solenoid wire
[diesel engines] or the spark plug wire(s)
[gasoline engines] to prevent accidental
starting. Thoroughly inspect the snowblower and repair any damage before restarting the engine and operating the
machine. Make sure a uger blades are in
good condition and all bolts are tight.
STOPPING THE MACHINE
1. Slow the engine to idle; put the throttle in the
IDLE position.
2. Pull the steering levers to the NEUTRAL posi tion and then move the FSC lever bac kward to
the NEUTRAL-PARK position.
3. Disengage the PTO clutch.
IMPORTANT: DO NOT disengage the PTO
clutch with high engine speed (above 1/2 throttle) since t h e br ak e ac t io n on t he PTO drive wi ll
cause premature wear of the brake band.
WARNING
A brake stops the auger from freewheeling within five (5) seconds af ter disengaging the PTO clutch. If the brake system
malfunctions and the auger does not stop
within five (5) seconds, the brake should
be adjusted or repaired before operating
the snowblower . Refer to the appropriate
Tractor Owner’s Manual for adjustment
procedures.
Engaged
Position
PTO Clutch Engaged (Model MD Shown)
Disengaged
Position
PTO Clutch Disengaged (Model MD Shown)
4. Turn the ignition switch OFF.
WARNING
Remove the key from th e ignition switch
when leaving the machine unattended.
This will prevent children and inexperienced operators from starting the engine.
5. Engage the parking brake.
IMPORTANT: The hydrostatic transmissions
lock to prevent the machine fr om rolling freely
with the engine stopped. Howeve r, if the machine is parked on a slope, it is necessary to
ENGAGE the parking BRAKE to prevent the
machine from creep ing. This is due to a small
amount of slippage in t he h yd ro static tr an sm is sions, especially when transmission fluid is
warm.
17
Operating Instructions
RECOMMENDATIONS FOR SNOWBLOWING
IMPORTANT: Operate the engine at full speed
when snowblowing, to allow the engine to produce
full horsepower and to increase efficiency of the engine cooling system.
• When operating on a slope, reduc e speed and
use caution to start, stop, and maneuver. Avoid
sharp turns or sudden changes in direction.
• When blowing thr ough deep snow drifts, let th e
snowblower work its way through the drifts. For best
results, raise the snowblower and remove a top layer of snow, then pass through the area a second
time to remove the remaining snow.
• When snowblowing, operate the engine at or near
full throttle for the best snowblowin g action. The
engine is designed to be operated at full speed.
• Use optional tire chains or optional all-terrain tires
to improve traction.
• Disengage the PTO clutch to stop the snowblow-
er when driving the machine but not blowing snow.
IMPORTANT: DO NOT use the snowblower as a
dozer blade to push snow. Let the snowblower work
its way through deep snow. If the tra ctor is driven
forward into snow too fast, the snowblower may
become overloaded and clog.
Throw Snow to One Side
Use the following pattern where snow can be thrown
only to one side . Start on the side farthest from
where the snow will be thrown. At the end of the
first pass, rotate the blower spout 180 degrees
for the return pass. At the end of each followi ng
pass, rotate the spout 180 degrees to keep throwing
snow in the same direction.
• Avoid damage to proper ty and extra snowblow-
ing work by carefully choosing the direction to
move the snow. Orient the blower away from people and property due to the possibility of thrown objects.
• To momentarily increase traction in case the
drive wheels are slipping, use the lift handle to raise
the snowblower slightly and transfer extra weight on
the drive wheels.
REMOVING SNOW
DANGER
DO NOT blow snow with bystanders in the
area (especially children or pets).
A definite operating pattern is required to thoroughly
clean snow from an area. Each pattern described
below clears all the snow in one pass (of the pattern)
and prevents throwing snow in unwanted places.
Throw Snow to One Side
Throw Snow to Both Sides
Use the following pattern where snow can be thrown
to both sides. Start in the middle with the blower
spout directed to either the right or left. Drive
from one end to the other in an outward spiral,
without changing the position of the blower
spout to throw snow to both sides.
18
Operating Instructions
Throw Snow to Both Sides
The following list of items should be checked if a
pattern of clogging begins to develop. All of these
items are capable of causing clogging.
• Check that the inside of the snowblower housing
is clean and free of snow and/or ice buildup.
• Check that the auger is in good condition and not
bent, both the auger flig hting and the center paddles.
• Check the inside of the blower spout for smooth-
ness and freedom of obstruction.
Remember, anything that restricts airflow or material flow along the e ntire path from the auger to the
blower spout can cause clogging.
CLOGGING CHECKLIST
In case of clogging, the snow throwing action will decrease and finally sto p. When this occurs, disengage the PTO clutch, stop th e engine, disconnect
the fuel solenoid wire [diesel engines] or spark plug
wire(s) [gasoline en gines], and r emove the ignitio n
key. Make sure all movement has st opped be-
fore attempting to unclog.
DANGER
DO NOT attempt to unclog the snowblo wer or make any adjustments with the tractor engine running. Disengage the PTO
clutch, stop the engine, and remove the
ignition key.
DANGER
NEVER place hands in the blower spout.
DO NOT use hands or feet to unclog the
snowblower. Use a short stick or simila r
tool to remove any clogged material.
19
Operator’s Notes
20
Maintenance Instru ctions
CAUTION
Maintenance procedures requiring special training or
tools should be performed by a trained technician.
MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERV ALS - SB36 SNOWBLOWER
Service Item Daily 25 Hours Yearly
Check Auger Condition X 14
Check Lift Handle and Foot Trigger Function X 14
Check Spout Position Control Handle X 16
Check Deflector Position Control Handle X 16
Reference
Page
Check Gauge Wheel or Skid Shoe X 32
Check Scraper Blade X 31
Check Tire Chains (Optional) X 14
Check/Adjust Chain Drive X 27
Lubricate Grease Fittings and Oil Points X 22
Lubricate Drive Chain X 23
Check PTO Gearbox Oil Seals X 22
Check Flexible Coupling X 31
Repaint Components/Parts X 33
Refer to the appropriate Tractor Owner’s Manual for complete information about tractor
Maintenance Items
21
Maintenance Instructions LUBRICATION
LUBRICATION
WARNING
DO NOT attempt to lubricate the machine
with the tractor engine running. Disengage the PTO clutch, shut off the machine, and remove the ignition key.
Proper lubrication is an important maintenance procedure. It reduces wear and makes the machine
quieter and easier to operate.
Grease Fitting and Oil Point Lubrication Lubricate the grease fittings and oil points after ev-
ery 25 hours of operation. Use SAE general pur-
pose lithium or molybdenum base grease for grease
fittings and light machine oil (SAE 10) to lubricate oil
points. Lubricate the locations shown in the
Snowblower Lubrication Points illustration.
PTO U-Joint
Lubricate the grease fitting for the PTO U-joint every
8 hours with SAE general purpose lithium or molyb-
denum base grease.
The PTO U-joint is accessed by removing the gear-
box cover. Two (2) bolts (one on each side) fasten
the gearbox cover to mounting tabs on the snowblower frame (refer to Snowblower with Gearbox
Cover Removed photo). Gearbox Lubrication
1. Remove the gearbox following the procedure
described in Gearbox Replacement in RE-
PLACING/REPAIRING.
Gearbox Cover
Mounting Tabs
Snowblower with Gearbox Cover Removed
2. Cle an th e area ar oun d the ge arbox co ve r pl ate
to prevent contaminants from entering the gearcase.
3. Remove the screws secu ring the c over plat e on
the gearbox.
4. Check the level of lubricant in the gea rbox. If
the lubricant is low, add SAE E.P. (Extreme
Pressure) 90W oil until the oil level is up to (submerges) the horizontal shaft in the gearbox
(shaft parallel to cover plate).
22
The gearbox is permanently lubricated (oil filled) and
sealed requiring no scheduled lubrication. However,
the gearbox oil seal(s) should be checked every 25
hours for indication of an oil leak. If an o il leak is
noted, replace the oi l se al a nd re lub ric ate the g ear box as follows:
NOTE: In case the gearbox is completely
drained of oil, approximately 5 fl. oz. (15 cl) of oil
is required to refill the gearbox.
IMPORTANT: DO NOT overfill the gearbox.
The gearbox assembly is not vented, and overfilling with oil will cause excessive pressure and
result in oil leaks.
5. Check the condition of the cover gasket and
replace if worn or damaged . Rein stall gearbo x
cover plate; torque screws to 24 in -lb (2.7 N· m).
6. Reinstall the gearbox cover by reversing the removal procedures.
Maintenance Instru ctions LUBRICATION
Drive Chain Lubrication
Lubricate the drive cha in every 25 hours. A light
penetrating oil or special purpose chain oil is recommended. Lubricate the drive chain as follows:
1. Remove the three (3) screws fastening the removable chain gua rd cover to the s nowblower
housing and remove the cover.
Chain
Chain Tension Block
Mounting Bolt
Chain Guard Cover
Remove Chain Guard Cover
2. Apply oil to the drive chain.
3. Adjust the chain if necessary. Refer to AD-
JUSTMENTS of Drive Chain in this section.
4. Reinstall chain guard cover by reversing the removal procedures.
23
Maintenance Instru ctions LUBRICATION
Ident Lubrication No.
No. Location Type Places
1 Spout Deflector Pivot Oil 2
2 Spout Position Control Oil 2
Handle Pivot
3 Foot Trigger Latch Grease 1
(Grease Slide Area)
4 Mounting Tube Sockets Grease 2
5 Lift Handle Pivot Grease 3
6 Spout Deflector Slide Area Grease 1
7 Counterweight Spring and
Lift Chain Clevis Pins Oil 4
8 Universal Joint Shaft Assembly Grease
9 Foot Trigger Pivot Oil 1
10 Right Angle Gearbox Oil
11 Gauge Wheel Axle Grease 2
(If equipped)
12 Drive Chain Oil 1
* 1
** 1
Ident Lubrication No.
No. Location Type Places
* Grease every eight (8) hours.
** Gearboxes are permanently lubricated and
sealed requiring no scheduled lubrication.
Oil level should be chec ked onl y when an oil
leak is noted. Refer to Gearbox Lubrica-
tion in this section.
NOTE: Tractor Lubrication Points are not shown
here. For Tractor Lubrication Points, Refer to
the appropriate Tractor OWNER’S MANUAL
or ILLUSTRATED PARTS MANUAL.
24
Maintenance Instru ctions LUBRICATION
1
Rear View
6
4
5
7
7
8
2
3
4
5
7
5
7
Bottom View
12
9
10
1111
Snowblower Lubrication Points
25
Maintenance Instru ctions REPLACING/REPAIRING
REPLACING/REPAIRING Gearbox Replacement
Remove and replace the gearbox as follows:
WARNING
1. Remove the gearbox cover. Two (2) bolts (one
To prevent accidental engine starting
when replacing part s or repairing the machine, remove the key from the ignition
switch and disconne ct the fuel solenoid
wire [diesel engines] or the spark plug
wire(s) [gasoline engines].
CAUTION
ALWAYS use genuine factory replacement parts. Substitute parts CAN result
in product malfunction and possible injury to the operator and/or others.
on each side) fasten the cover to mounting tabs
on the frame.
2. Loosen the set screw fastening the PTO U-joint
to the gearbox shaft and slide the PTO shaft off
the gearbox shaft.
3. Remove the two (2) bolts, oblong washers, and
Keps nuts that fasten the gearbox to the s no wblower frame.
4. Remove the gearbox from the snowblower
frame.
NOTE: The flexible coupling spider will be
loose; be sure to keep track of it. A good way to
do this is to tape it in place on the flexible coupling half that is attached to the drive shaft.
PTO Shaft
Flexible Coupling Half
Set Screw
Square Key
Set Screw
Flexible Coupling Half
5. Replace the gearbox by reversing the r emoval
procedures.
Flexible Coupling
Spider
Woodruff Key
Keps Nut
Oblong Washer
Bolt
Gearbox
Set Screw
26
PTO U-Joint
Replace Gearbox
Maintenance Instru ctions REPLACING/REPAIRING
Drive Chain
The drive chain sh oul d b e r epl ac ed if, when ad jus ted properly, it can be pulled away fro m the front o f
the auger sprocket more tha n 1/2 of the height of
a tooth on the sprocket. Running the snowblower
with a worn chain increases wear on the sprock-
ets.
1. Remove the chain guard cover and the LH auger guard. Refer to LUBRICATION of Drive
Chain in this section for removing chain guard
cover.
2. Loosen the chain tension block mounting nut
and bolt. Position the chain tension block so the
chain has as much slack as pos sible. Tighten
the chain tension block mou nting nut and bolt
slightly to hold the chain tension block in this
position.
Chain Tension Block
Mounting Bolt
Master Link
Plate
Clip
Drive Chain
Remove Master Link
5. Place the new chain on the sprocke ts and install the master link. Be sure to install the cl ip
on the master link properly. The closed end of
the clip should point in the direction of chain
travel.
Loosen Chain Tension
3. Turn the auger until the master link for the chain
is accessible.
4. Remove the master link from the ch ain and r emove the chain from the sprockets.
Closed End
of Clip
Proper Master Link Clip Installation
6. Adjust the chain. Refer to ADJUSTMENTS of
Drive Chain in this section.
7. Reinstall the auger guard and the chain guard
by reversing the removal procedures .
Open End
of Clip
Plate
Master Link
27
Maintenance Instru ctions REPLACING/REPAIRING
Sprockets A sprocket shou ld be re place d when the teeth b e-
come asym met ric (when the front side of a tooth is
a different shape than the back side of the tooth).
NOTE: Generally; a small sprocket wears faster
than a large sprocket.
Symmetric (Acceptable)
Asymmetric (Replace)
Woodruff Key
Drive
Shaft
Set Screw
Sprocket
Remove and Replace Sprocket
7. Position the sprocket on the dr ive sha ft so it i s
aligned with the auger sprocket. To check alignment, look at the drive s haft s procket, o ver the
top of the auger sprocket, from the front of the
snowblower.
Sprocket Wear
Drive Shaft Sprocket Replacement
1. Remove the chain guard cover, auger guard,
and drive chain. Refer to REPLACING/RE-
PAIRING of Drive Chain in this section.
2. Loosen the set screw that fastens the sprocket
to the drive shaft.
3. Slide the sprocket off the drive shaft. Use a puller if necessary.
4. If necessary, clean the end of the drive shaft
with an emery cloth or a wire brush.
5. Place the Woodruff key in the keyway on th e
drive shaft.
6. Align the slot in the new sprocket with the Woodruff key and slide the sprocket onto the drive
shaft. Make sure the Woodruff key is in place
between the driveshaft and sprocket.
Proper
Alignment
Drive Shaft Sprocket
Auger Sprocket
Improper
Alignment
Align Sprockets
28
Maintenance Instru ctions REPLACING/REPAIRING
8. When the sprockets are aligned properly, tighten the set screw in the drive shaft sprocket.
9. Reinstall and adjust the drive chain by reversing
the removal procedures. Refer to ADJUST-
MENTS of Drive Chain in this section.
10. Recheck the sprocket alignment with the chain
installed.
Drive Shaft Sprocket
Auger Sprocket
Proper
Alignment
Improper
Alignment
5. Remove the auger from the snowbl ower housing. There is a spacer washer on eac h end of
the auger shaft.
6. Remove the six (6) bo lts that fast en th e sp rocket to the auger and remove the sprocket.
7. Install the new sprocket.
8. Reinstall and tighten the sprocket bolts.
9. Make sure the spacer washers are on the ends
of the auger shaft.
10. Place the auger back in th e snowblo wer hous ing.
11. Reinstall the bolts in both ends of the snowblower housing and auger shaft, but do not
tighten.
12. Slide the auger sha ft key plat e into po sition on
the end of the auger shaft between the spacer
washer and the snowblower housing.
13. Rotate the auger shaft as necessary to align the
auger shaft key plate with th e three (3) moun ting bolt holes.
Check Sprocket Alignment with Chain Installed
11. Lubricat e the drive chain. Re fer to LUBRICATION of Drive Chain in this section.
12. Reinstall the auger guard and chain guar d by
reversing the removal procedures.
Auger Sprocket Replac eme nt
1. Remove the chain guard cover, both auger
guards, and the drive chain. Refer to REPLAC-
ING/REPAIRING of Driv e Chain in this section.
2. Place blocks under the ends of the auger to
support it when the bolts are remo ve d fr om th e
ends of the auger shaft.
3. Remove the three (3) bolts that fasten the auger
shaft key plate to the drive chain side of the
snowblower housing.
4. Remove the two (2) bolts that fasten the aug er
shaft at each side of the snowblower housing.
14. Reinstall and tighten the three (3) mounting
bolts for the auger shaft key plate.
15. Make sure tha t both spacer washers are on
the auger shaft - not between th e end of the
auger shaft and the snowblower housing.
16. Retighten the bolts on both sides of the snowblower housing and auger shaft.
17. Reinstall and adjust the drive chain by reversing
the removal procedures. Refer to ADJUST-
MENTS of Drive Chain in this section.
18. Check sprocket alignment afte r the drive chain
is installed. If the sprockets are not aligned:
a. Loosen the set screw in the drive shaft
sprocket.
b. Align the drive shaft spro cket with the au-
ger sprocket.
c. Tighten the set screw in the drive shaft
sprocket.
29
Maintenance Instru ctions REPLACING/REPAIRING
19. Lubricate the driv e chain. Refer to LUBRICATION of Drive Chain in this section.
Auger Shaft Bolt
Spacer Washer
20. Reinstall the auger guards and the chain guard
cover by reversing the removal procedures.
Snowblower Housing
Auger
Sprocket
Auger
Shaft
Sprocket
Bolt
Spacer
Washer
Auger Components
Auger Shaft
Key Plate
Auger Shaft Bolt
Key Plate Mounting Bolts (3)
30
Maintenance Instru ctions
Scraper Blade Inspect the scraper blade for wear or damage be-
fore each use . The blade is hardened and if the
gauge wheels (or skid shoes) are properly adjusted,
the blade should give a rea sonable amount of service before replac ement. The blade s hould be replaced before it has wor n down to the point where
the blade mount on the housing is dragging and
wearing.
REPLACING/REPAIRING/
ADJUSTMENTS
Shear Pin
Split Spring Pin
U-Joint
Tube Assembly
IMPORTANT: Continued operation with a worn out
scraper blade and/or improperly adjusted gauge
wheels will result in severe damage to the lower portion of the snowblower housing.
The scraper blad e is replaced by removing seven
(7) 1/4-20 x 3/4 carriage bolts and nuts.
Flexible Coupling Spider Inspect the flexible coupling spider after every 25
hours of operation. If the elastomeric media shows
signs of wear , cracking or deterior ation, the spider
should be replaced. Refer to Gearbox Replace-
ment in this section for removing and replacing the
spider.
U-Joint Shear Pin (After S/N 99-1042)
In case of sudden stoppage of the auger, the PTO
U-joint connection to the gearbox has a shear pin to
provide shock load protection to the drivetrain.
When the PTO pin has sh eared, use the follo wing
procedure to replace it:
1. Remove the gearbox cover. Two (2) bolts (one
on each side) fasten the cover.
2. Rotate U-joint on shaft to align the shear pin
hole with the hole (and s hear pin fragment) in
the shaft. Use a punc h to drive the rem aining
portion of the old shear pin out.
3. Install new shear pin and secure with cotter pin.
U-Joint
Shaft Assembly
Cotter Pin
PTO Shear Pin
IMPORTANT: Use onl y Walker P/N 8067-10 s hear
pins for replacement to provide proper shock protection -- these pins are hardened to shear under a specific amount of load.
4. Reinstall the gearbox cover.
Before operating the b low er a fter the s he ar p in ha s
been replaced, insp ect the auger fli ghting and paddle blades for dam age. Also inspect the gearbox
and chain drive for any damage. Make sure the auger turns smoothly and freely before resuming operation.
ADJUSTMENTS
WARNING
DO NOT attempt to make any adjustments with the tractor engine running.
Disengage the PTO clutch, stop the engine, and remove the ignition key. Wait
for all movement to stop before getting
off the seat.
Drive Chain Tension
The drive chain should have 1/4 to 1/2 in. (6 to 13
mm) of slack at mids pan. Rem ove th e c hai n g uard
cover to check slack. Adjust the drive chain as follows:
1. Loosen the chain tension block mounting nut
and bolt.
31
Maintenance Instru ctions ADJUSTMENTS
1. Park the tractor on a level surface and lower the
snowblower.
2. Loosen the bolts that fasten the gauge wheels
Chain Tension Block
Mounting Bolt
Loosen Chain Tension Block Mounting Bolt
2. Position the chain tension block so the chain
has 1/4 to 1/2 in. (6 to 13 mm) of slack.
3. Retighten the chain tension block mounting nut
and bolt.
4. Recheck the drive chain tension.
(or skid shoes) to the snowblower.
Gauge Wheel
Adjust Gauge Wheels
Chain Tension
Block
1/4 to 1/2 in. (6 to 13 mm)
Slack At Midspan
Proper Chain Tension
Gauge Wheels or Skid Shoes
Inspect for paper adjustment of the gauge wheels or
skid shoes before each use.
IMPORTANT: Failure to maintain proper adjustment of the gauge wheels or skid shoes can result in
accelerated wear of the scraper blade.
Optional skid shoes can be used instead of the
gauge wheels to operate the snowblower on soft
surfaces. Adjust the gauge whee ls or op tional sk id
shoes as follows:
3. Position the gauge wheels (or skid s hoes) so
that the snowblower is level and the scraper
blade has light contact or slight clearance
with the surface.
4. Retighten the bolts that fasten the gauge
wheels (or skid shoes) to the snowblower.
Skid Shoe
Adjust Skid Shoes
32
Removal and Storage Instructions
REMOVAL
1. Park the tractor on a level surface and lower the
snowblower.
WARNING
DO NOT attempt to remove the snowblower with the tractor engine running.
Disengage the PTO clutch, stop the engine, and remove the ignition key. Wait
for all movement to stop before getting
off the seat.
T o prevent accidental engine starting, disconnect the fuel solenoid wire [diesel
eng ines] or the spark plu g wire(s) [ga soline engines].
2. Remove the hitch pins from the ends of the support arms.
3. Slide the PTO shaft out of the PTO coupler
while sliding the snowblower off the tractor support arms.
END OF SEASON STORAGE
1. Clean the snowblower thoroughly.
2. Repaint all parts where paint has worn.
NOTE: Rustproofing or painting every year
will prolong the life of the sn owblower components and moving parts.
3. When the snowblower is dry, lubricate all moving part s. Apply lubricant lib er al ly to al l su rf a ces to protect against rust.
4. Store the snowblower in a dry place.
33
MAIN BODY COMPONENTS
ITEM PART DESCRIPTION NO.
NO. NO. REQ’D
Spout/Deflector Assembly
1 5640 Grommet (1/4 x 3/8) 1
2 5641 Handle, Deflector Position Control 1
3 5685-1 Decal, Danger (#23555) 2
4 5604 Spout Deflector 1
(Includes Item # 2)
5 5639 Deflector Gasket 1
6 5617-1 Spout Discharge Guard 1
7 5603-2 Spout 1
5603-6 Spout Assembly
(Includes Items # 1-12, F005, F020, F029,
F032, F034, F049, F050, F061, F091, F177,
F178, F236 & F310)
8 5618 Spout Rotation Stop 1
9 5229 Extension Spring (1/2 x 2-1/4) 1
10 5616 Handle, Spout Position Control 1
11 5642 Spring, Deflector Handle 1
12 5643 Plastic Tip, Handle 1
Housing/Frame Assembly
13 5747-5 Safety Tread (6 x 11-1/2) 2
14 5607 Cover (Includes Item # 13) 1
15 5850-1 Handle Grip 1
16 5800 Decal, Walker Mower (4 x 7-1/2) 1
17 5685-2 Decal, Warning (#23569) 1
18 5610 Scraper Blade 1
(Includes Items # F004 & F172) 1
19 5605 Auger Guard 2
20 5611 Skid Shoe (Heat Treated)
5611-1 Skid Shoe Kit (Optional) 1**
(Includes Items # 20, F009 & F169) ***
21 5629-2 Gauge Wheel 2
5629 Snowblower Gauge Wheel Assembly 2
(Includes Items # 21, 22, 23, F034,
F168, F170 & F209)
22 5830 Grease Fitting 7
23 5629-1 Wheel Bracket 2
24 5743-2 Extension Spring (1-1/2 x 7-3/4) 2
25 5653 Chain Shackle (5/16) 4
(Includes Item # F069)
26 5655 Lift Chain (4-1/2) 2
27 5628-2 Lift Bracket 2
28 5747-4 Safety Tread (3-1/4 x 4-1/2) 2
29 5606 Chain Guard 1
30 NS Housing & Frame 1
(Includes Items # 3, 16, 17 & 28)
31 5654 Lift Trigger 1
32 5227-1 Extension Spring (1/2 x 4) 1
*
*
♦
ITEM PART DESCRIPTION NO.
NO. NO. REQ’D
Fasteners
F004 1/4-20 Keps Nut 7
F005 1/4-20 ESNA Nut 3
F009 5/16-18 Whiz Locknut 6
F020 5/16-18 ESNA Nut 6
F029 1/4-20 x 1/2 Hex Bolt 4
F031 1/4-20 x 5/8 Hex Bolt 2
F032 1/4-20 x 3/4 Hex Bolt 2
F034 5/16-18 x 3/4 Hex Bolt 5
F035 5/16-18 x 1-1/4 Hex Bolt 2
F049 5/16 SAE Washer 4
F050 1/4 SAE Washer 1
F061 1/4 Internal Star Lock Washer 5
F069 3/32 x 1/2 Cotter Pin 4
F091 5/16-18 x 5/8 Hex Bolt 1
F093 5/16-18 x 1 Hex Bolt 2
F111 1/8 x 3/4 Cotter Pin 1
F134 AN960816L Washer 4
F168 5/16 Split Lock Washer 2
F169 5/16-18 x 1 Carriage Bolt 6
F170 5/16 x 1 x 7/64 Washer 2
F172 1/4-20 x 3/4 Carriage Bolt 7
F173 5/16-18 x 3/4 Carriage Bolt 4
F176 #14 x 1/2” Sheet Metal Screw 6
F177 5/16 x 1-1/2 Fender Washer 2
F178 1/4 x 1 Fender Washer 6
F209 .765 x 1.312 x .032 Washer 4
F236 1/4-20 x 1-3/4 Hex Bolt 1
F310 5/16 x 1-1/8 x 3/16 Washer 1
***
♦♦
***
* Service Part Only
** May be purchased as a factory-installed option or as a kit for
dealer installation. Contact your Walker dealer. Kit Replaces
Part 5629-2, and Includes Items # F009 & F169.
*** Six (6) F009 furnished with Standard Assembly. Installation of
Skid Shoe Kit includes an additional six (6) F009 and six (6)
F169.
♦
Housing and Frame shown only for models prior to S/N 99-1042.
For models with S/N 99-1042 and later, refer to detail shown in
AUGER AND DRIVETRAIN COMPONENTS (Page 36).
♦♦
Average of four (4) F134 used per assembly. Adjust as required.
Use only genuine Walker replacement parts. Effective Date 04-01-99
34
MAIN BODY COMPONENTS
Effective Date 04-01-99 Use only genuine Walker replacement parts.
35
AUGER AND DRIVETRAIN COMPONENTS
ITEM PART DESCRIPTION NO.
NO. NO. REQ’D
Auger Assembly
1 5602 Auger 1
5602-4 Auger Assembly
*
(Includes Items # 1, 4, 5, 6, 7, F034 & F168)
2 5615 Key Plate, Auger Shaft 1
3 5613 1-1/16 x 1-1/2 x .155 Washer 2
4 5614 Drive Sprocket, Auger (41-35T) 1
5 5609 Spindle Bearing & Collar 2
(Includes Item # F309)
6 5608 Auger Shaft (1 x 35-1/2) 1
7 5612 Bearing Retainer Plate 1
Drivetrain Components
8 5052-3 1.375 x .750 x .187 Washer, Oblong 2
9 5050-1 Right Angle Gearbox 1
**
10 5631 Flex Coupling Half (7/8 Bore) 1
(Includes Item # F110)
11 5624 PTO Shaft 1
**
(Includes Item # F076) 1
12 5632 Spider, Flexible Coupling 1
13 5630 Flex Coupling Half (3/4 Bore) 1
(Includes Item # F110)
14 5268 Bearing (3/4), Includes Locking Collar 2
15 5595-2 Intake Cover (10” Blower) 1
***
16 5635 Drive Shaft (3/4 x 14-1/8) 1
17 5841 Retainer Washer 2
18 5626-2 Chain Tension Block 1
19 5233 Transmission Sprocket (41-10T) 1
20 5843-2 Clutch Spacer Washer 1
21 5622 Drive Chain (#420 x 66) 1
22 5050-10 Right Angle Gearbox 1
23 5624-15 PTO Shaft 1
♦
♦
(Includes Items # 24 & F295)
24 8067-10 Shear Pin w/Cotter (Set of 5)
♦
(Includes Item # F069)
ITEM PART DESCRIPTION NO.
NO. NO. REQ’D
Fasteners
F009 5/16-18 Whiz Locknut 1
F012 3/8-16 Keps Nut 2
F034 5/16-18 x 3/4 Hex Bolt 9
F039 3/8-16 x 1-1/4 Hex Bolt 2
F064 1/8 x 1/2 Woodruff Key (#3) 1
F065 3/16 x 3/4 Woodruff Key (#9) 2
F067 3/16 x 3/16 x 1 Key 1
F069 3/32 x 1/2 Cotter Pin 1
♦
F074 1/4-20 x 3/8 Set Screw 3
F076 3/8-16 x 5/8 SQH Set Screw 1
F091 5/16-18 x 5/8 Hex Bolt 3
F110 5/16-18 x 1/2 Set Screw 2
F168 5/16 Split Lock Washer 12
F174 1/2-13 x 1-1/4 Hex Bolt 2
F175 1/2 Split Lock Washer 2
F208 5/16-18 x 2-1/4 Hex Bolt 1
F295 3/16 x 1-1/2 Split Spring Pin 1
♦
F309 1/4-28 x 1/4 Set Screw 2
* Service Part Only
** Used only on models prior to S/N 99-1042.
*** Plugs blower when GHS is not in use. Furnished only with
Mulching Decks, SD Decks used on a GHS Tractor, Rotary
Broom Attachment and Snowblower Attachment.
♦
Used only on models with S/N 99-1042 and later.
(Item # 24 is sold as Service Part Only.)
Use only genuine Walker replacement parts. Effective Date 04-01-99
36
AUGER AND DRIVETRAIN COMPONENTS
Effective Date 04-01-99 Use only genuine Walker replacement parts.
37
KEY TO ABBREVIATIONS USED IN ILLUSTRATED PARTS LIST
Abbreviation What it Represents
AT................................................................................................................................................................All-Terrain
CCW ..............................................................................................................................................Counter-clockwise
Conn. ..........................................................................................................................................................Connector
CW..............................................................................................................................................................Clockwise
DGHS......................................................................Deck, Grass Handling System (number refers to size in inches)
DML ............................................................................................... Deck, Mulching (number refers to size in inches)
DSD ..................................................................................... Deck, Side Discharge (number refers to size in inches)
ESNA (Fastener).........................................................................................................................Nylon Insert Locknut
FSC........................................................................................................................................ Forward Speed Control
GA.....................................................................................................................................................................Gauge
gal. .....................................................................................................................................................................gallon
GHS .......................................................................................................................................Grass Handling System
GR (Fastener)................................................................................................................................................... Grade
ID ....................................................................................................................................................... Inside Diameter
” or in. (Dimension) ...........................................................................................................................................inches
LH ..........................................................................................................Left Hand (orientated with operator on seat)
mm (Dimension)......................................................................................................................................... millimeters
MS (Fastener)..................................................................................................................................... Mac hine Sc rew
NPT............................................................................................................................................National Pipe Thread
NS (as part number)................................................................................... Item is not sold by Walker Manufacturing
OAL......................................................................................................................................................Overall Length
OD................................................................................................................................................... Outside Diameter
oz. ......................................................................................................................................................................ounce
PFHMS (Fastener).................................................................................................Phillips Flat Head Machine Screw
P/N..........................................................................................................................................................Part Number
PPHMS (Fastener)................................................................................................ Phillips Pan Head Machine Screw
PPHSM (Fastener)........................................................................................ Phillips Pan Head Sheet Metal (Screw)
PPHST (Fastener) ........................................................................................Phillips Pan Head Self-Tapping (Screw)
PTHMS (Fastener)..............................................................................................Phillips Truss Head Machine Screw
PTO.....................................................................................................................................................Power Take-Off
QKS ..........................................................................................................................................................Quick Slide
qt.........................................................................................................................................................................quart
RH....................................................................................................... Right Hand (orientated with operator on seat)
SAE (Fastener) ............ ...... ....... ...... ....... ...... ....... ...... ....... ...... ....... .......................... Society of Automotive Engineers
SB36 ...........................................................................................................................................36 Inch Snowblower
SBH (Fastener)..................................................................................................................Socket Button Head (Bolt)
SD.......................................................................................................................................................Side Discharge
SFH (Fastener) .................. ....... ...... ....... ...... ....... .............................................................................Slotted Flat Head
SHC (Fastener)...............................................................................................................................Socket Head Cap
SHL (Fastener) ................................................................................................................................... Shoulder (Bolt)
S/N....................................................................................................................................................... Serial Number
Spg....................................................................................................................................................................Spring
SQH (Fastener)......................................................................................................................................Square Head
SS (Fastener).......................................................................................................................................Stainless Steel
Term...............................................................................................................................................................Terminal
Use only genuine Walker replacement parts. Effective Date 04-01-99
38
LIMITED W ARRANTY
FOR
WALKER MODEL SB36
SINGLE-STAGE SNOWBLOWER
1. WHAT THIS WARRANTY COVERS, AND FOR HOW LONG:
Walker Manufacturing company will, at its option, repair or replace, without charge, any part covered by this warranty
which is found to be defective in material and/or workmanship within one (1) year after date of sale to the original retail
purchaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days. At
Walker's request, customer will make the defective part available for inspection by Walker and/or return the defective part
to Walker, transportation charges prepaid. All parts and components of the Walker Model SB36 Snowblower are covered
by this warranty except the following components which are warranted separately by their respective manufacturers:
Peerless Gearboxes
The available warranties covering these items are furnished with each snowblower. Walker does not assume any warranty
obligation, liability or modification for these items, which are covered exclusively by the stated warranty of the respective
manufacturers noted above.
2. WHAT THIS WARRANTY DOES NOT COVER:
A. This warranty does not cover defects caused by depreciation or damage caused by normal wear, accidents, improper
maintenance, improper use or abuse of the product, alterations, or failure to follow the instructions contained in the
Owner’s Manual for operation and maintenance.
B. The customer s hall pay any charges for making serv ice calls and/or for transporting the snowblower to and from the
place where the inspection and/or warranty work is performed.
3. HOW TO OBTAIN SERVICE UNDER THIS WARRANTY:
Warranty service can be arranged by contacting the dealer where you purchased the snowblower or by contacting Walker
Manufacturing Company, 5925 East Harmony Road, Ft. Collins, CO 80528. Proof of the date of purchase may be required
to verify warranty coverage.
4. WARRANTY LIMITATION:
A. THERE IS NO OTHER EXPRESS WARRANTY. ANY WARRANTY THAT MAY BE IMPLIED FROM THIS
PURCHASE INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY
LIMITED TO THE DURATION OF THIS WARRANTY AND TO THE EXTENT PERMITTED BY LAW ANY AND ALL
IMPLIED WARRANTIES ARE EXCLUDED. Some states do not allow limitations on how long an implied warranty
lasts, so the above limitations may not apply to you.
B. WALKER WILL NOT BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, OR SPE CIAL DAMAGES AND/OR
EXPENSES IN CONNECTION WITH THE PURCHASE OR USE OF THE SNOWBLOWER. Some states do not
allow the exclusion or limitation of incidental or consequential damages, so the above limitation(s) or exclusion(s)
may not apply to you.
C. Only the warranty expressed in this limited warrant y shall apply and no dealer, distributor, or individual is authorized
to amend, modify, or extend this warranty in any way. Accordingly, additional statements such as dealer advertising
or presentations, whether oral or written, do not constitute warranties by Walker, and should not be relied upon.
D. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
39
WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (9 70) 221-5614
FORM NO. 050399 PRINTED IN USA ©1999 WALKER MFG. CO
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