Walker H12, H17 Operator's Manual

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H12: 42” Two-Stage Snowblower H17: 50” Two-Stage Snowblower

Operator’s Manual

Safety, Assembly, Operating and Maintanence Instructions

H12 compatible with tractor models: MC, MD, MT H17 compatible with tractor models: MH

Please Read and Save These Instructions

For Safety, Read All Assembly and Opeartion Instructions Prior to Operating Attachment

H12 Beginning S/N: 21508289

H12 Eective Date: 03.25.15

H17 Beginning S/N: 21516633

H17 Eective Date: 09.22.15

P/N: 6670-14

Foreword

Thank you. . .for purchasing a Walker Two-Stage Snowblower. Every eort has been made to provide you with the most reliable machine on the market, and we are sure you will be among our many satisﬁed customers. If for any reason this product does not perform to your expectations, please contact your local dealer. Every customer is important to us. Your satisfaction is our goal.

Please. . .read this manual thoroughly! Before you operate your machine, please read this entire manual. Some of the information is crucial for proper operation - it will help protect your investment and ensure that the machine performs to your satisfaction. Some of the information is important to your safety, and must be read and understood to help prevent possible injury to the operator or others. If anything in this manual is confusing or hard to understand, please contact your local authorized dealer or call our service department, at (970) 221-5614, for clariﬁcation before operating or servicing this machine.

This manual covers the H12, 42 in. Two-Stage Snowblower and the H17, 50 in. Two-Stage Snowblower.

All shields and guards must be in place for the proper and safe operation of this machine. Where they are shown removed in this manual, it is for illustration purposes only. Do not operate this machine 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 continually striving to improve the design and performance of its products. We reserve the right to make changes in speciﬁcations and design without thereby incurring any obligation relative to previously manufactured products.

Sincerely, WALKER MANUFACTURING COMPANY

Bob Walker, President

Table of Contents

GLOSSARY III

SPECIFICATIONS IV

Safety Instructions 1

BEFORE OPERATING 2

OPERATING 3

MAINTENANCE 4

Decals 6

Assembly 8

Installation 11

Operation 17

PREOPERATION CHECKLIST 17

SNOWBLOWER CONTROLS 18

SNOWBLOWER OPERATION 20

Removing and Storage 24

Maintenance 25

MAINTENANCE SCHEDULE CHART 25

LUBRICATION 25

REPLACING/REPAIRING PARTS 28

ADJUSTMENTS 31

WARRANTY 44

H12

• The following are required for mounting the H12 42 in. Two-Stage Snowblower

- MC, MT, MD Tractors: H10 Implement Mount Hitch

- MH Tractors: H19 Implement Mount Hitch

H17

• The following are required for mounting the H17 50 in. Two-Stage Snowblower

- MC, MT, MD Tractors: H10 Implement Mount Hitch

- MH Tractors: H19 Implement Mount Hitch

OPTIONAL UPGRADES

P/N 6623-4 Snowblower Chute Control Kit: For use on MH with A33 Hard Cab.

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 disregarding

basic safety precautions 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.

Information of special importance has been highlighted in bold type in this manual. Refer to Safety Instructions

for the meanings of DANGER, WARNING, CAUTION, IMPORTANT, and NOTE.

Safety Instructions

Pay particular attention to any information labeled DANGER, WARNING, CAUTION, IMPORTANT, and

NOTE in this manual.

When you see the Safety Alert Symbol (

comply with safety instructions may result in personal injury.

The seriousness or degree of importance of each type of information is deﬁned as follows:

An IMMEDIATE hazard that WILL result in severe personal injury or

DEATH, if warning is ignored and proper safety precautions are not

taken.

A POTENTIAL hazard that COULD result in severe personal injury or

DEATH, if warning is ignored and proper safety precautions are not

taken.

Possible hazards or unsafe practices that MAY result in MODERATE

personal injury or property damage, or machine damage, if warning

is ignored and proper safety precautions are not taken.

), read, understand, and follow the instructions. Failure to

DANGER

WARNING

CAUTION

IMPORTANT: Identiﬁes mechanical information demanding special

attention, since it deals with the possibility of damaging a part or parts

of the machine.

NOTE: Identiﬁes information worthy of special attention.

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 procedures, tools, or control

techniques not recommended by Walker Manufacturing must take full responsibility for safety. The Walker

tractor and implement attachments have been designed with 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 Operator’s Manual before operating the machine. Become

thoroughly familiar with all controls and how to stop the machine and disengage the controls quickly.

Replacement Operator’s Manuals are available by sending the model and serial number to:

Walker Manufacturing Company

5925 E. Harmony Road

Fort Collins, CO. 80528

2. Never allow children to operate or give rides on the machine. Do not allow adults to operate without

proper instruction.

3. Do not allow anyone other than the operator on the machine.

4. Keep everyone, especially children and pets, a safe distance away from the area being cleaned. Do not

operate with bystanders in the area.

5. Do not operate the machine wearing sneakers, tennis shoes, or similar lightweight footwear. Wear

substantial protective footwear that will improve footing on slippery surfaces.

6. Snow or leaves can sometimes hide objects that might clog the snowblower, or otherwise cause damage.

Clear the area of doormats, sleds, boards, wires and other debris.

7. Do not wear loose ﬁtting clothing that could get caught in moving parts. Always wear adequate 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 hearing. Operator hearing protection

is recommended. Wear a suitable hearing protective device such as earmus or earplugs.

9. Keep all protective shields and safety devices in place. If a protective shield, safety device, or decal is

damaged, unusable, or missing, repair or replace it before operating the machine.

10. Be sure any interlock switches are functioning correctly so the engine cannot be started unless the

Forward Speed Control (FSC) lever is in the NEUTRAL position and the PTO clutch is in the DISENGAGED

position. Also, the engine should stop if the operator lifts o the seat with 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 running engine or hot engine (allow hot engine to cool several minutes).

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 prevent spilling.

e. Replace the machine fuel cap and container cap securely and clean up any spilled fuel before

starting the engine.

OPERATING

NOTE: Refer to your tractor Operator’s Manual for safety instructions for operating

the tractor.

1. Operate the machine only in daylight or in good artiﬁcial light with good visibility of areas being cleaned.

2. Sit on the seat when starting the engine and operating the machine. Keep feet on footrests at all times

when the tractor is moving and/or the implement is operating.

3. An inexperienced operator should learn to steer (maneuver) the tractor with a slow engine speed

before attempting any operating. Be aware that, with the front mounted implement conﬁguration, the

back of the machine swings to the outside during turns.

4. Remember, for an emergency stop, the forward 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

ignition interlock switch normally prevents starting of the tractor if these controls are in the OPERATING

position).

6. Do not run the engine in a conﬁned area without adequate ventilation. Exhaust fumes are hazardous

and can be deadly.

7. Do not carry passengers - maximum seating capacity is one (1) person.

8. Make sure the auger is clear of snow, ice, or debris before engaging the PTO clutch.

9. Be careful never to throw snow towards people or cars, and never allow anyone in front of the implement.

10. Watch out for hazards hidden under snow that could enter the chute while operating.

11. Avoid sudden starts or stops. Before backing the machine up, look to the rear to be sure no one is behind

the machine. Watch carefully for trac when crossing or working near roadways.

12. Disengage the PTO clutch when transporting the machine.

13. Do not operate across the face of slopes. Use extreme caution when changing 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 servicing,

disengage the PTO clutch, stop the engine, and remove the ignition key. Wait for all movement to stop

before getting o the seat.

NOTE: The PTO brake should stop drive line rotation within ﬁve (5) seconds of

disengaging the PTO clutch. If the brake is not functioning properly, have it repaired

by an authorized dealer immediately.

15. Do not operate the snowblower with the blower spout assembly removed.

16. If snowblower clogs:

a. Disengage the PTO clutch, stop the engine, 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.

c. Disconnect the fuel solenoid wire [diesel engines] or spark plug wire(s) [gasoline engines].

d. DO NOT use hands or feet to unclog the snowblower - use a stick or similar tool.

17. If the implement strikes a solid object or the machine begins to vibrate abnormally, immediately

disengage the PTO clutch, stop the machine, and remove the ignition key. 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 implement and repair any damage before restarting

the engine and operating the machine. Make sure implement components are in good condition and all

bolts are tight.

18. Do not touch the engine or muer 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 clutch, stop the engine, and remove the

ignition key.

MAINTENANCE

NOTE: Refer to your tractor Operator’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 wire(s)

[gasoline engines].

2. To reduce ﬁre hazards, keep the engine free of grass, leaves, excessive grease, and dirt.

3. Keep all nuts, bolts, and screws tight to ensure the machine is in a safe, working condition.

4. Perform only maintenance instructions described in this manual. Unauthorized maintenance 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.

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 machine in any manner which adversely aects its operation, performance, durability or use

will VOID the warranty and may cause hazardous conditions.

8. Never attempt to disconnect any safety devices or defeat the purpose of these safety devices.

9. Do not change the engine governor settings or overspeed the engine. The governor has been factory-set

for maximum-safe engine operating speed.

10. Use genuine factory replacement parts. Substitute parts may result in product malfunction and possible

injury to the operator and/or others.

IMPORTANT: Keep all applicable manuals immediately accessible to anyone

who may operate or service this machine.

GLOSSARY

There are many terms that are either unique to this equipment or that are used as acronyms. The following

terms and their deﬁnitions will help while using this manual.

 FORWARD SPEED CONTROL FSC controls the maximum forward speed of the tractor; functioning as

a cruise control.

 IMPLEMENT refers to the two-stage snowblower used with the tractor with an implement hitch installed.

 LEFT HAND LH refers to the left-hand side of the machine when the operator is seated facing forward

in the tractor seat.

 MACHINE consists of the implement installed on the tractor, functioning as a single unit.

 POWER TAKEOFF PTO transmits engine power to run the two-stage snowblower.

 RIGHT HAND RH refers to the right-hand side of the machine when the operator is seated facing forward

in the tractor seat.

 TRACTOR is the prime mover, including the engine, drivetrain, operator seat, and controls to operate the

implement.

IDENTIFYING NUMBER LOCATIONS

The two-stage snowblower serial number is axed to the RH side of the snowblower head frame. Model

and serial numbers are helpful when obtaining replacement parts and maintenance assistance. For ready

reference, please record these numbers in the space provided.

Two-Stage Snowblower Model No.

Two-Stage Snowblower Serial No.

Date of Purchase

Fill In By Purchaser

Serial Number

Two-Stage Snowblower Serial Number Location

iii

(Rear View and RH View)

UNIT DESCRIPTION

The 42 in. (107 cm) two-stage snowblower throws snow up to 40 ft (12 m). It is raised and lowered

automatically with the lift control switch. The blower spout is controlled with a simple position control

handle, or the Snowblower Chute Control Kit (P/N 6623-4) for use with model H only. The snowblower is

soft cab are available as optional equipment for models C, T, and D. Tire chains and a hard cab are available

as optional equipment for model H.

SPECIFICATIONS

Two-Stage Snowblower H12 H17

Height Without Chute in. (cm) 20-1/2 (52) 20 (51)

Width in. (cm) 42-1/4 (107) 50 (127)

Length With Female Hitch in. (cm) 30 (76) 30 (76)

Overall Length Installed on Tractor in. (cm)* 97-1/2 (248) 105 (267)

Cutting Height in. (cm) 19 (48) 19 (48)

Weight With Female Hitch lb (kg) 180 (82) 193 (88)

Throwing Distance ft (m) 40 (12) 40 (12)

Lift 12 Volt DC Electric Linear Actuator, Operated by Toggle

Switch Mounted on FSC Lever

Hitch System Patented Quick Hitch System

Type Blower Two-Stage with 12-7/8 in. (33 cm) Diameter Auger and

15-3/4 in. (40 cm) Diameter, 3-Blade Impeller, Clockwise Rotation

Snowblower PTO Drive Quick Disconnect Splined PTO Shaft with Two (2) High-

Speed U-Joints

Impeller Drive Chain, #40

Driving Sprocket: H40C11 Driven Sprocket: H40B32

Auger Drive Worm Gearbox, 5:1 Ratio, SAE EP 90W Gear Oil

Discharge Angle Adjustment Chute Direction Rotates 228o by Crank, Adjustable Spout

Deﬂector, Adjustable from Operator Seat, Up to 40 ft. (12 m) Discharge Distance

Body Construction Frame Thickness: 14 Gauge Steel

Side Thickness: 11 Gauge Steel Impeller Housing Thickness: 14 Gauge Steel

Depth Guide Two Adjustable, Replaceable Skid Shoes, Adjustable from

* H12 with model MT, H17 with model MH

NOTE: The manufacturer reserves the right to make changes in speciﬁcations shown herein at any time

without notice or obligation.

1/4 to 3/4 in. (6 to 19 cm)

Deﬂector Position

Control Knob

Deﬂector

Chute Rotation

Handle

Fan

Chute

Hand Guard

Gearbox Support

Bracket

Auger

Frame

Two-Stage Snowblower Front View and Right Side View (Not Installed)

Gearbox

Auger

Deﬂector Position

Control Knob

Snowblower

Housing

Deﬂector

Chute

Chute Rotation

Handle

Reduction Box Cover

Skid Shoe

Two-Stage Snowblower Rear View (Not Installed)

Skid Shoe

Female Quick Hitch

PTO Drive Shaft

Decals

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 machine into operation.

The Decal Part Number is listed below.

Safety Decal: Rotating Driveline

Location: PTO Shield

Part Number: 7822

DANGER

ROTATING DRIVELINE

CONTACT CAN CAUSE DEATH

KEEP AWAY!

ALL DRIVELINE, TRACTOR AND EQUIPMENT SHIELDS IN PLACE.

DRIVELINE SHIELDS THAT TURN FREELY ON DRIVELINE.

IMPORTANT

position and the implement in the lowered position. Open the PTO shield ONLY for connecting or disconnecting driveline.

– DO NOT OPERATE WITHOUT –

DRIVELINES SECURELY ATTACHED AT BOTH ENDS.

When raising tractor body, the PTO shield must be closed or in the down

7822

Safety Decal: Rotating Driveline

Location: PTO Guard

Part Number: 657763 (RAD)

DANGER

Safety Decal: Keep Hands Out Location: Discharge Chute

Part Number: 657761 (RAD)

DANGER

TO AVOID SERIOUS INJURY:

KEEP HANDS OUT OF DISCHARGE CHUTE WHILE ENGINE IS RUNNING.

SHUT OFF ENGINE BEFORE UNCLOGGING DISCHARGE CHUTE.

Lubrication Decal: Lubricate Chain

Location: Snowblower housing

133

ROTATING DRIVELINE

CONTACT CAN CAUSE DEATH.

KEEP PEOPLE AND CLOTHING AWAY.

DO NOT OPERATE WITHOUT:

ALL DRIVELINE, TRACTOR AND EQUIPMENT SHIELDS IN PLACE DRIVELINE SECURELY ATTACHED AT BOTH ENDS

DRIVELINE SHIELD TURNING FREELY ON DRIVELINE.

135

Safety Decal: Rotating Driveline

Location: Above Serial Numer Plate

Part Number: 655683 (RAD)

Part Number: 657804 (RAD)

STOP ENGINE BEFORE LUBRICATING

LUBRICATE CHAIN EVERY

4 HOURS WITH CHAIN

SAW CHAIN LUBRICATE

IMPORTANT

BEFORE USING:

• OIL LEVEL MUST BE CHECKED

• FILL WITH SAE 80W90. “AGMA 5 EP” EXTREME PRESSURE OIL OR EQUIVALENT.

• READ INSTRUCTIONS MANUAL.

137

Safety Decal: Safety Procedures

Safety Decal: Rotating Auger

Location: Discharge Chute

Part Number: 660988 (RAD)

WARNING

FAILURE TO FOLLOW SAFE OPERATING PROCEDURES MAY RESULT IN INJURY.

FOR SAFE OPERATION FOLLOW ALL OPERATING INSTRUCTIONS AND SAFETY PRECAUTIONS IN

OPERATOR’S MANUAL. EYE PROTECTION MUST BE WORN AT ALL TIMES. KEEP HANDS, FEET AND CLOTHING AWAY FROM POWER DRIVEN PART. STOP ENGINE BEFORE LEAVING OPERATOR POSITION.

WAIT FOR ALL MOVEMENTS TO STOP BEFORE STARTING TO ADJUST, LUBRICATE, CLEAN OR UNCLOG THE MACHINE.

KEEP THE AREA OF OPERATION CLEAR OF ALL PERSONS

AND ANIMALS. KEEP ALL GUARDS AND SHIELDS IN PLACE. NEVER DIRECT DISCHARGE TOWARDS BYSTANDERS, BUILDING, CARS ETC. ALWAYS USE A DUST MASK WHEN WORKING IN DUSTY CONDITIONS. KEEP PLASTIC AWAY FROM INTENSE HEAT AND OPEN FLAME. NEVER ALLOW PASSENGERS ON THE ATTACHMENT.

Important Decal: Use Shear Bolts

229

Location: Snowblower Housing

Part Number: 657762 (RAD)

DANGER

Avoid Injury From

Rotating Auger:

Keep hands,feet and clothing away. Shut off engine before servicing.

Decal: Walker Decal

134

Location: Inside Housing Behind Auger

Part Number: 657346 (RAD)

IMPORTANT

USE SPECIAL AUGER SHEAR BOLT ONLY.

#BER657295

ONE END UP

USE SPECIAL FAN SHEAR BOLT ONLY.

#BER656053

ONE END DOWN

Location: Snowblower Housing

Part Number: 5800-9

112

Decal: Walker Decal

Location: Snowblower Housing

Part Number: 5809-2

Assembly

1. Remove the rear shaft support from the chute base lip and discard the existing bolt. Refer to Figure 1.2 to

locate the rear shaft support.

2. Place the plastic anti-friction insert over the chute base as shown in Figure 1.1. Only one position provides

a perfect ﬁt.

Nipple (Facing Up)

Rear

Front

Figure 1.1: Install Plastic Insert

3. Insert the 1-5/16 in. (33 mm) plastic bushing into the tube weldment, then insert the 1-11/16 in. (43 mm) plastic bushing into the rear shaft support and place over the shaft on the rotation worm as shown in

Figure 1.2.

4. Install the rotation worm assembly into the tube weldment with the rear shaft support plate on the

underside of the chute base lip as shown in Figure 1.2.

1-5/16 in. Bushing

Tube Weldment

1-11/16 in.

Bushing

Rotation Worm

Rear Shaft

Support

Figure 1.2: Install Rotation Worm Assembly

5. Install the chute over the plastic insert and secure with four retaining plates (as shown in Figure 1.3), using

two (2) 1/4 x 1/2 in. bolts, lock washers, and nuts in each of the three (3) standard retaining plates, and two

(2) 1/4 x 3/4 in. bolts, lock washers and nuts in the rear right retaining plate which also secures the rear

shaft support. Tighten all bolts to 10 ft-lb (13.6 N•m).

6. Insert two (2) 5/16 x 1 in. carriage bolts through each of the skid shoes from inside the bend. Place a ﬂat

washer, lock washer, and nut loosely on each bolt and place the bolt heads through the round holes in the

outer ends of the bottom angle of the snowblower body as shown in Figure 1.4. Adjust the skid shoes to

allow the required clearance under the cutting edge. Slide the square shank portion of the bolt head into

the slot and tighten the nuts securely. Refer to ADJUSTMENTS - Skid Shoes in Maintenance section.

Chute

Snowblower

Housing

Retaining Plates

Carriage Bolts

Skid Shoe

Figure 1.3: Install Chute and Retaining Plates

7. Install the hand guard on the chute, with the top section inside the chute and the bottom section outside

the chute base ring. Place two (2) 1/4 x 3/4 in. bolts through the chute and the hand guard. Secure bolts

with a ﬂat washer, lock washer, and nut. Position each bolt with the head on the outside of the chute and

the nut on the inside, and torque bolts to 10 ft-lbs (13.6 N•m).

Hand Guard

Figure 1.4: Install Skid Shoes

Figure 1.5: Installing Hand Guard on Chute

8. Thoroughly clean the drive shaft yoke and install a 1/4 x 1/4 x 1-1/4 in. key in the drive shaft keyway as

shown in Figure 1.6.

Drive Shaft

1/4 x 1/4 x 1-1/4 Key

Set Screw

PTO Drive Shaft Yoke

Figure 1.6: Attach PTO Drive Shaft Yoke to Snowblower Drive Shaft

9. Slide the drive shaft yoke over the drive shaft.

10. Secure the yoke to the drive shaft with a 1/4 x 2-1/2 in. bolt and nylon locknut. Tighten the nut and the

3/8 x 3/8 in. allen set screw securely over the key in the yoke.

11. Install one (1) 5/16-18 x 5/8 in. hex bolt on each side of the PTO guard, and tighten securely as shown in

Figure 1.7.

PTO Guard

Guard Mount

Bolt

Figure 1.7: Install PTO Guard

Installation

1. Grease the drive shaft spline sliding surfaces and slide the PTO coupler (tractor half) onto the shaft as

shown in Figure 2.1.

Figure 2.1: Install PTO Coupler on Drive Shaft

2. Retract the spring-loaded quick disconnect ring on the PTO Coupler and insert the Coupler Installation

Tool (provided in Owner’s Packet) as shown in the Figure 2.2.

NOTE: The Coupler Installation Tool is provided for convenience,

but is not required for installation.

Coupler

Installation Tool

PTO Coupler

Tube

Retract Spring-Loaded

Quick Disconnect Ring

Figure 2.2: PTO Coupler Installation Tool

3. Insert the male quick hitch section of the implement hitch into the female socket of the snowblower as

shown in Figure 2.3 and Figure 2.4.

Female Socket

Male Hitch

Figure 2.3: Male To Female Hitch Connection

4. Lock the snowblower in place with the locking lever on the implement hitch: All implements must be

locked in place on the implement hitch before beginning any operation.

H10: Locking/Removing Implements

• Locking: Rotate the hitch lock lever fully forward to the LOCKED position as in Figure 2.5, and

secure the hitch latch with the linch pin.

• Removing: Remove the linch pin from the latch and move the hitch lock lever backward to the

UNLOCKED position as in Figure 2.6.

Linch Pin

Locking Lever

LOCKED

Figure 2.4: Hitch Connected To Snowblower

Locking Lever

UNLOCKED

Figure 2.5: Hitch Lock Lever in “LOCKED” Position Figure 2.6: Hitch Lock Lever in “UNLOCKED” Position (View From Right Side of Tractor) (View From Right Side of Tractor)

H19: Locking/Removing Implements

• Locking: Rotate the hitch lock lever fully backward to the LOCKED position as in Figure 2.7.

• Removing: Move the hitch lock lever forward to the UNLOCKED position as in Figure 2.8.

Locking Lever

LOCKED

Locking Lever

UNLOCKED

Figure 2.7: H19 Locking Lever in “LOCKED” Position Figure 2.8: H19 Locking Lever in “UNLOCKED” Position

H19: Float Function Adjustment

• Non-Floating: Insert the clevis pin (Figure 2.9) through the rear actuator mount and secure with

the bowtie cotter pin. Install the clevis pin to allow for downward pressure on the implement.

• Floating: Remove the bowtie cotter pin, and remove the clevis pin from the rear actuator

mount (Figure 2.10). Removing the clevis pin will allow a free ﬂoating implement.

Actuator Motor (Ref)

Clevis Pin

Removed

Figure 2.9: Non-Float Setting With Clevis Pin Installed

Figure 2.10: Float Setting With Clevis Pin Removed

5. Attach the PTO coupler to the tractor PTO shaft. Remove installation tool, and make sure the coupler is

secured properly to the tractor PTO shaft, and that the quick disconnect ring is in the LOCKED position as

shown in Figure 2.12. After installation, pull on the PTO coupler to check for security.

WARNING

The PTO shaft turns at high RPM. If the coupler is not locked to the shaft at the

tractor end, or if the yoke at the snowblower end is not secured properly, the drive

shaft can ﬂy loose with great force, capable of causing serious injury or death.

IMPORTANT: DO NOT operate tractor with Coupler Installation Tool installed.

IMPORTANT: To prevent damage to the mower, make sure the PTO quick

disconnect is securely locked on the tractor, with the locking balls fully seated in

the groove and the ring in the locked position (refer to the Quick Disconnect Ring

“Locked” Position illustration). After installation, pull on the PTO coupler to check

for security.

Coupler Ring in

Released Position

PTO Coupler

U-Joint

PTO Drive

Shaft

PTO Coupler

U-Joint

Internal Balls

Locked on Shaft

Coupler Ring in

Locked Position

PTO Drive

Shaft

Figure 2.11: Quick Disconnect Ring in “Released” Position

Figure 2.12: Quick Disconnect Ring in “Locked” Position

6. Attach the parallel bar to the female hitch and the implement adaptor using the two clevis pins and spring

clips. Adjust the length of the parallel bar by turning either end clockwise to shorten, or counterclockwise

to lengthen as needed to level the snowblower.

Rear Clevis Attach

Figure 2.13: Attach Parallel Bar

7. Insert the chute rotation handle into the rotation worm. Align the holes and lock in place with a 1/4 x 1

in. socket head cap screw and nylon locknut as shown in Figure 2.14.

Parallel Bar

Front Clevis Attach

Rotation Handle

Figure 2.14: Install Chute Rotation Handle

8. Install the plastic handle grip on the chute rotation handle. Refer to Figure 2.15.

Handle Grip

Figure 2.15: Install Handle Grip

9. For GHS (Grass Handling System) equipped Walker tractors, install a blower intake cover (P/N 5595-2) in

the blower intake tube. The cover “unloads” the blower and seals the intake to eectively eliminate power

loss and noise when the blower is not being used.

Blower Intake

Cover

Figure 2.16: GHS Blower Intake Cover

10. Counterweight should be installed on the tail of the tractor for stability when transporting the tractor with

the snowblower in raised position. Optional tail weights for the various tractor models are available from

your Walker dealer, or a sandbag or similar weight may be used.

Operation

PREOPERATION CHECKLIST

Before operating the snowblower for the ﬁrst time, and as a routine before daily operations, it is important

to make sure the machine is properly prepared and ready for operation. The following is a list of items to be

checked. For machines with frequent operation, some of these items will not need to be checked every day,

but the operator should be aware of the condition of each.

Tractor

CHECK TRACTOR PREOPERATING CHECKLIST

Refer to the appropriate Tractor Operator’s Manual.

CHECK TRACTOR TAILWEIGHT

Make sure sucient weight has been securely installed on rear of tractor (approximately 80 lbs. on most

tractor models).

CHECK OPTIONAL TIRE CHAINS

Tire chains should always be used when operating the machine in icy conditions. If the tractor is equipped

with the optional tire chains, make sure the chains are in good condition and are installed properly.

Implement Hitch

CHECK LIFT SWITCH OPERATION

Raise and lower the implement hitch to make sure the lift switch and linear actuator operate properly.

CHECK HITCH LOCKING LEVER

Inspect the locking mechanism for secure mounting of snowblower on hitch. Refer to Hitch Locking

Lever in the Implement Hitch Operator’s Manual.

Snowblower

CHECK SKID SHOE FOR WEAR AND PROPER ADJUSTMENT

See ADJUSTMENTS - Snowblower Skid Shoes in the Maintenance section of this manual.

ADJUST THE PARALLEL BAR SO THAT THE SNOWBLOWER RUNS LEVEL.

See step 5 in Installation instructions

CHECK CUTTING EDGE

Make sure the cutting edge is not damaged or worn beyond limits. Refer to REPAIRING/ REPLACING

PARTS - Snowblower Cutting Edge in the Maintenance section of this manual.

CHECK AUGER AND IMPELLER

• Make sure the auger and impeller are clear of snow and/or ice.

• Make sure the auger and impeller are free to rotate.

• Check that the auger ﬂighting and impeller blades are in good condition and not bent.

CHECK CHUTE AND DEFLECTOR

• Make sure the chute and deﬂector are not clogged with snow and/or ice.

• Turn the chute rotation handle and rotate the chute. The chute should rotate freely.

• Loosen the deﬂector position knobs to raise and lower the deﬂector. The deﬂector should

move freely. Retighten deﬂector position knobs with the deﬂector in the desired position.

CHECK GEARBOX OIL LEVEL

Inspect for any sign of an oil leak. Refer to LUBRICATION - Snowblower Gearbox in the Maintenance

section of this manual.

CHECK SHEAR BOLTS

Check the three (3) shear bolts, one on each auger section, and one between the fan and gearbox for

proper tightness, approximately 8 lb-ft (11 N•m).

CHECK REDUCTION CHAIN

Refer to LUBRICATION - Snowblower Reduction Chain in the Maintenance section of this manual.

Refer to ADJUSTMENTS  Snowblower Reduction Chain Tension in the Maintenance section of this

manual.

SNOWBLOWER CONTROLS

Chute Rotation Handle

The chute rotation handle is located on the rear of the snowblower, behind and to the right of the discharge

chute (Figure 3.1). The chute rotates in a 228 degree arc, by cranking the rotation handle.

• Turning the handle clockwise rotates the chute to the right.

• Turning the handle counterclockwise rotates the chute to the left.

Rotate clockwise to move chute to right; opposite to left.

Figure 3.1: Chute Rotation Handle

Chute Rotation Handle

Deﬂector Position Knobs

Set the angle of the deﬂector according to the distance the snow must be thrown. To adjust the deﬂector

angle:

1. Loosen the two knobs on the sides of the deﬂector.

2. Slide the deﬂector to the required angle, and securely retighten the two knobs.

Deﬂector Position

Knobs

Figure 3.2: Deﬂector Position Knobs

Raising/Lowering

The snowblower is raised or lowered using the toggle switch located on the FSC lever as shown in Figure 3.3.

• Move the switch forward to lower the implement.

• Move the switch backward to raise the implement.

Raise

Lower

Figure 3.3: Lift Control

SNOWBLOWER OPERATION

CAUTION

Before operating the snowblower, read and understand all Safety

Instructions and Operating Instructions.

WARNING

If an implement is installed on the hitch, it must be locked in place

before beginning any operation.

Engaging the Snowblower

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 shorten drive belt life. Use only moderate engine speed when engaging the

PTO clutch.

2. Pull the PTO clutch lever SLOWLY AND SMOOTHLY to engage the snowblower.

NOTE: For cold weather operation, allow sucient time for the snowblower

components (i.e. gearbox oil) to warm up before beginning to blow snow.

DANGER

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 o the seat and engaging

the PTO clutch; the engine should stop. If the switch is not working, it

should be repaired or replaced before operating the snowblower. DO NOT

disconnect the safety switches; they are for the operator’s protection.

IMPORTANT: DO NOT engage the PTO clutch when transporting the

machine. DO NOT engage the PTO clutch with the PTO shaft disconnected

(the snowblower removed from the tractor).

If the auger strikes 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 starting the engine and operating the machine. Make sure auger blades are in good condition and all bolts are tight.

Recommendations for Snowblowing

IMPORTANT: Operate the engine at full speed when snowblowing

to allow the engine to produce full horsepower and to increase

eciency of the engine cooling system.

• When operating on a slope, reduce speed and use caution when starting, stopping, and

DANGER

maneuvering. Avoid sharp turns or sudden changes in direction.

• When blowing through deep snow drifts, let the 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 snowblowing

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 snowblower when driving the machine but not blowing

snow.

• Avoid damage to property and extra snowblowing work by carefully choosing the direction

to move the snow. Orient the blower discharge 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 switch to

raise the snowblower slightly and transfer extra weight on the drive wheels.

Removing Snow

DO NOT blow snow with bystanders in the area (especially children or pets).

A deﬁnite operating pattern is required to eciently 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.

DANGER

IMPORTANT: DO NOT use the snowblower as a dozer blade to push snow.

No snow piled on this side

Snow thrown to this side only

Start Here

Finish Here

Rotate spout 180º

Let the snowblower work its way through deep snow. If the tractor is driven forward into snow too fast, the snowblower may become overloaded and clog.

When snow can be thrown to only one side of an area, use the pattern shown in Figure 3.4. 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 following pass, rotate the spout 180 degrees to keep

throwing snow in the same direction.

Figure 3.4: Throw Snow to One Side

When snow can be thrown to both sides of an area, use the pattern shown in Figure 3.5. Start in the middle

with the blower spout directed to either the left or the right. Drive from one end to the other in an outward

spiral without changing the position of the blower spout to throw snow on both sides.

Snow thrown to both sides

Finish Here

Snow thrown to both sides

Start Here

Figure 3.5: Throw Snow to Both Sides

Clogging Checklist

In case of clogging, the snow throwing action will decrease and ﬁnally stop. When this occurs, disengage the

PTO clutch, stop the engine, disconnect the fuel solenoid wire [diesel engines] or spark plug wire(s) [gasoline

engines], and remove the ignition key. Make sure all movement has stopped before attempting to unclog.

DANGER

DO NOT attempt to unclog the snowblower or make any adjustments with the tractor engine running. Disengage the PTO clutch, stop the engine, and wait for all moving parts to stop before unclogging the snowblower.

DANGER

NEVER place hands in the blower spout. DO NOT use hands or feet to unclog the snowblower. Use a short stick or similar tool to remove any clogged material.

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 and impeller shear pins are present.

• Check that the auger is in good condition and not bent (both the auger ﬂighting and the center

paddles).

• Check the inside of the blower chute for smoothness and freedom of obstruction.

Remember, anything that restricts airﬂow or material ﬂow along the entire path from the auger to the blower

chute can cause clogging.

Removing and Storage

H10 and H19 Instructions

1. Park the tractor on a level surface and lower the snowblower.

2. Remove the spring clip and clevis pin from the parallel bar at the hitch end, and remove the parallel bar

from the implement hitch.

3. Remove the linchpin from the quick hitch latch and place the hitch locking lever in the UNLOCKED

position.

4. Start the tractor and carefully back the tractor away from the snowblower.

DO NOT engage the PTO clutch with the PTO shaft disconnected (the

snowblower removed from the tractor).

5. Remove the PTO coupler from the tractor.

Storing the Snowblower

1. Clean and dry the snowblower thoroughly.

2. Repaint all parts from which paint has worn.

NOTE: Rustprooﬁng or painting every year will prolong the life of the

snowblower components and moving parts.

3. Lubricate all moving parts. Apply lubricant liberally to all exposed surfaces to protect against rust.

4. List the replacement parts that will be needed before the next use.

5. Store the snowblower in a dry place.

Maintenance

CAUTION

Maintenance procedures requiring special training or tools should be performed

by a trained technician.

WARNING

DO NOT perform any maintenance with the tractor engine running. Disengage

the PTO clutch, shut o the machine, and remove the ignition key before

performaing any maintenance on equipment.

MAINTENANCE SCHEDULE CHART  RECOMMENDED SERVICE INTERVALS

Service Item Daily 8 Hours 25 Hours

Perform Preoperation Checklist X 17 Check Skid Shoe Wear/Adjustment

Check Cutting Edge Condition/Wear

Check Hitch Lock Tension (H19)

Lubricate Grease Fittings and Oil Points

Lubricate Reduction Drive Chain

Check Gearbox Oil Level

Check/Adjust Reduction Chain Tension

Reference

Page

X 31

X 28

X 33

X 26

X 25

X 26, 32

Check Condition of Drive Sprockets

LUBRICATION

Proper lubrication is an important maintenance procedure. It reduces wear and makes the machine quieter

and easier to operate.

Snowblower Gearbox

The gearbox is permanently lubricated (oil ﬁlled) and sealed requiring no scheduled lubrication. However, the

gearbox oil seal(s) should be checked daily for any indication of an oil leak. If an oil leak is noted, the gearbox

should be repaired before further operation. Gearbox oil level can be checked as follows:

1. Clean the area around the oil ﬁll plug located on the front of the gearbox as shown in Figure 4.1.

2. Remove the oil ﬁll plug on the gearbox.

3. If the oil level is at the bottom of the plug hole, the gearbox is full. Reinsert the plug. If the oil level is

below the plug hole, add SAE E.P. (Extreme Pressure) 90W lubricant into the gearbox through the plug

hole until it starts to ﬂow out.

X 20

4. Wipe the threads of the gearbox plug before reinstalling.

5. Torque to 24 lb-in (3 N•m).

Oil Fill Plug

Figure 4.1: Oil Fill Plug

Snowblower Reduction Chain

Lubricate the reduction chain every 25 hours of operation. A light pentrating oil or special purpose chain oil

is recommended. Lubricate the reduction chain as follows:

1. Remove the bolts fastening the PTO guard to the reduction box and remove the guard.

2. Apply oil to the reduction chain.

3. Adjust the chain tension if necessary. Refer to REPLACING/REPAIRING - Snowblower Reduction Chain

and ADJUSTMENTS - Snowblower Reduction Chain Tension in this section.

4. Reinstall the PTO guard by reversing the removal procedure.

Reduction Chain

Sprocket

Figure 4.2: Snowblower Reduction Chain

Grease Fitting and Oil Point Lubrication

Lubricate the grease ﬁttings and oil points every 25 hours of operation. Use SAE general purpose lithium or

molybdenum base grease for grease ﬁttings and light machine oil (SAE 10) to lubricate oil points. Lubricate

the locations shown in the Lubrication Points Diagram on the following page.

Ident

No.

Location Lubrication Type No. Places

1 Auger Sections Grease 2 2 Gearbox Oil* 1 3 Reduction Chain Oil** 1

4 Sprockets Oil 2

PTO Shaft Assembly

Grease 1

(Spline Slide Area) 6 PTO Universal Joints Grease 2 7 Quick Hitch Pivot Grease 1

* Gearbox is permanently lubricated and sealed requiring no scheduled lubrication. Oil level should be

checked only when an oil leak is noted. Refer to LUBRICATION  Snowblower Gearbox in this section.

** Lubricate chain daily or every 25 hours of operation. Refer to LUBRICATION - Snowblower Reduction

Chain in this section.

Lubrication Points Diagram

3 and 4 not visible

(See Figure 4.2)

NOTE: Tractor and/or Implement Hitch Lubrication Points are not shown here. For Tractor and/or Implement Hitch Lubrication Points, refer to the appropriate

OPERATOR’S MANUAL or ILLUSTRATED PARTS MANUAL.

REPLACING/REPAIRING PARTS

WARNING

To prevent accidental engine starting when replacing parts or repairing the

machine, remove the key from the ignition switch and disconnect the fuel

solenoid wire [diesel engines] or the spark plug wire(s) [gasoline engines].

Snowblower Cutting Edge

The cutting edge should be rotated or replaced before it is worn to the point that the snowblower housing can

make contact with the ground. Operating with an overly worn cutting edge will damage the snowblower.

NOTE: The cutting edge of the snowblower is reversible and needs to be replaced

only when both the top and bottom edges have worn.

Replace the snowblower cutting edge as follows:

1. Remove the six (6) 5/16-NC hex nuts and 5/16 in. lock washers from the rear of the snowblower housing,

behind the cutting edge. Remove the six (6) 5/16-NC x 1 in. carriage bolts from the front of the cutting

edge.

2. If only one edge of the blade is worn or damaged, rotate the blade 180 degrees so the new edge is now on

the bottom. Reinstall the cutting edge onto the snowblower housing by reversing the removal procedure.

3. If both edges are worn or damaged, remove the cutting edge and install a new one by reversing the

removal procedure.

Figure 4.3: Snowblower Cutting Edge

Snowblower Reduction Chain

The reduction chain should be replaced if, when adjusted for proper tension, it can be pulled away from

the top of the reduction sprocket more than 1/2 the height of a tooth on the sprocket. Running the

snowblower with a worn chain increases wear on the sprockets.

1. Remove the bolts securing the PTO guard to the frame and remove the guard as shown in Figure 4.4.

2. Turn the reduction box drive shaft until the master link for the chain is accessible.

3. Remove the master link from the chain and remove the chain from the sprocket.

Figure 4.4: PTO Guard Removed

4. Place the new chain on the sprockets and install the master link. Install the clip on the master link

properly. The closed end of the clip should point in the direciton of chain travel as shown in Figure 4.5.

Direction of Chain Travel

Master Link

Closed End

of Clip

Figure 4.5: Replace Reduction Chain

Plate

5. Adjust the chain tension. Refer to ADJUSTMENTS - Snowblower Reduction Chain Tension in this section.

6. Reinstall the PTO guard by reversing the removal procedure.

Snowblower Reduction Sprockets

A sprocket should be replaced when the teeth become asymmetric (when the front side of a tooth is a

dierent shape than the back side of the tooth) as shown in Figure 4.6.

Symmetric (Acceptable)

Asymmetric (Replace)

Figure 4.6: Reduction Sprocket Wear

NOTE: Generally, a small sprocket wears faster than a large sprocket.

Replacing Drive Shaft with Sprocket (P/N I153)

1. Remove the PTO guard and reduction chain. Refer to REPLACING/REPAIRING PARTS - Snowblower

Reduction Chain in this section.

2. Remove the bolt and set screw retaining the U-joint shaft assembly to the drive shaft, and remove the

U-joint shaft assembly from the drive shaft. Remove the three (3) carriage bolts, nuts and washers from

the rear bearing ﬂange.

3. Remove the four (4) carriage bolts and nuts securing the reduction box assembly to the frame and remove

the reduction box assembly.

4. Loosen the set screws that secure the two (2) bearing collars to the shaft, and remove the shaft from the

reduction box. Also remove the rear bearing from the shaft.

5. Install the new drive shaft (with sprocket) into the reduction box by reversing the removal procedure.

6. Reinstall the reduction box and chain by reversing the removal procedure.

7. Lubricate and tension the reduction chain. Refer to LUBRICATION - Snowblower Reduction Chain, and

ADJUSTMENTS - Snowblower Reduction Chain Tension in this section. Reinstall the PTO guard.

Replacing Large Sprocket (P/N I161)

1. Remove the PTO guard cover and reduction chain. Refer to REPLACING/REPAIRING PARTS - Snowblower

Reduction Chain in this section.

2. Remove the four (4) carriage bolts and nuts securing the reduction box assembly to the frame and remove

the reduction box assembly.

3. Remove set screws on the large sprocket, and remove large sprocket from the gearbox drive shaft.

4. Install new large sprocket by reversing the removal procedure.

5. Reinstall the reduction box and chain by reversing the removal procedure.

6. Lubricate and tension the reduction chain. Refer to LUBRICATION - Snowblower Reduction Chain, and

ADJUSTMENTS - Snowblower Reduction Chain Tension in this section. Reinstall the PTO guard.

ADJUSTMENTS

Snowblower Skid Shoes

Adjust the skid shoes to allow the required clearance under the blade. On level, paved surfaces, adjust the

skid shoes to allow 0 to 1/4 in. (0 to 6 mm) clearance between the cutting edge and the surface. On uneven

or gravel surfaces, allow 1/2 to 5/8 in. (13 to 16 mm) clearance, depending on the size of the gravel. Refer

to Figure 4.7.

0 to 1/4 in. (5 to 6 mm)

clearance for level, paved surfaces

Figure 4.7: Skid Shoe Height Adjustment

1/2 to 5/8 in. (13 to 16 mm)

clearance for uneven or gravel surfaces

Snowblower Reduction Chain Tension

Adjust the tension on the reduction chain as follows:

1. Remove PTO guard covering the reduction box.

2. Loosen the four (4) carriage bolts and nuts securing the reduction box assembly to the frame.

3. Using a pry bar, apply leverage to push the reduction box assembly down to increase tension on the

chain. The chain should have 1/16 to 1/8 in. of slack.

4. While applying downward pressure to maintain chain tension, tighten the four (4) carriage bolts and nuts

to 25 ft•lbs (34 N•m) as shown in Figure 4.8.

Figure 4.8: Tensioning Reduction Chain

5. After torquing fasteners, verify correct chain tension as described in step 3.

6. Reinstall the PTO guard.

1/16 in. to

1/8 in

Figure 4.9: Correct Chain Tension

1/16 in. to

1/8 in

H19 Hitch Lock Tension Adjustment

After installing an implement onto the hitch, the hitch lock clevis will need to be adjusted according to the

following procedure:

1. Adjust the H19 hitch lock clevis to properly secure the implement. To adjust the tension on the tongue

latch, remove the bowtie clip and the clevis pin as shown in Figure 4.10, and twist the male clevis clockwise

to tighten, or counterclockwise to loosen, as needed.

2. The hitch lock lever should travel approximately 2” at grip end after implement hitch adapter is fully seated

on implement hitch tongue as shown in Figure 4.11.

3. Repeat adjustment procedure after ﬁrst 15 minutes of operation after installing implement.

Male Clevis

Figure 4.10: Hitch Lock Clevis

2”

Figure 4.11: Hitch Lock Arm Travel

This page left intentionally blank

SNOWBLOWER DRIVE COMPONENTS H12

ITEM WLK RAD NO. PART PART DESCRIPTION NO. NO. NO. REQ’D

Driveline and Auger Components

1 I394 657762 Decal, Rotating Auger 2 2 NS 655683 Decal, Check Oil Level 1 3 NS 657804 Decal, Lubricate Chain 1 4 I120 656589 Bearing Flange 6 5 I434 665495 Bearing With Locking Collar 1 6 F168 5/16 Split Lock Washer 15 7 I163 656570 40 x 38 Chain 1 8 I161 656543 Sprocket (H40B32) 1 9 I512 665494 1” Bearing 4

(Includes Item # F309) 10 O/L 5/16-NC x 5/8 Carriage Bolt 6 11 I153 657250 Drive Shaft (with Sprocket), 1

H40C11 12 6671-10 U-Joint Shaft Assembly, Spline 1

(Includes Items # 27-29) 13 I395 657763 Decal, Rotating Driveline 1 14 6671-1 6671-1 PTO Outer Shield 1 15 6651-5 Bearing & Retainer Kit 1 16 NS 657346 Decal, Use Shear Bolts 1 17 I543 0300002 Carriage Bolt, 5/16 x 3/4 3 18 I105 656053 Shear Bolt (1/4-NC x 1) 1

With Locknut 19 I209 4300055 Bushing 2 20 I102 657327 Fan Assembly 1

(Includes Item # 33) 21 I104 655874 Fan Adapter Shear Plate 1 22 666732 Auger, LH 1 23 I114 667786 Shear Bolt (5/16-18 x 2-1/4) 2

Lock & Nut 24 I113 657334 Bearing Flange 2 25 5830 654106 Grease Fitting 2 26 I130 655967 Woodruff Key 1 27 I129 657286 Output Shaft 1 28 I200 4500035 Gearbox 1

(Includes Items # 1-14) I101 663030 Gearbox (Usimax) 1 NS 665775 Seal Kit 1

29 666731 Auger, RH 1 30 I106 0100024 5/16-18 x 2 Hex Bolt, Grade 8 1

ITEM WLK NO. PART DESCRIPTION NO. NO. REQ’D

Fasteners

F004 1/4-20 Keps Nut 1 F034 5/16-18 x 3/4 Hex Bolt 6 F113 5/16-18 x 5/16 Set Screw 2 F149 1/4 x 1/4 x 1-1/2 Key 1 F235 5/16-18 x 2-1/2 Hex Bolt 4 F255 5/16-18 x 1-1/2 Hex Bolt 2 F271 1/4-20 x 2-1/4 Hex Bolt 1 F309 1/4-28 x 1/4 Set Screw 5 F318 3/8-16 x 3/4 SQH Set Screw 1

F447 1/4 x 1/4 x 1 Key 1

NOTE: Decals are illustrated in greater detail on pages 6-7 of this

manual.

NOTE: NS items are “Not Sold” by Walker Manufacturing.

NOTE: O/L indicates “Obtain Locally.”

Beginning S/N 21508289

Eective Date 03.25.15

Use only genuine Walker® replacement parts

F255

F309

F020

F034

F309

F034

F318

F004

F271

F149

F113

F447

F113

F020

F309

SNOWBLOWER DRIVE COMPONENTS H12

SNOWBLOWER HOUSING COMPONENTS H12

ITEM WLK RAD NO. PART PART DESCRIPTION NO. NO. NO. REQ’D

Chute Rotation Assembly

1 I169 661168 Chute, Base and Knobs 1

(Includes items 1-5, 7,8, and 16)

2 I396 657761 Decal, Keep Hands Out 1 3 I172 658468 7/16 Nylon Washer 2 4 I171 658467 11/32 Nylon Washer 2 5 I170 657309 5/16-18 Knob 2 6 I175 657308 Hand Guard 1 7 O/L 1/4 Lock Washer 8 8 I522 657333 Retaining Plate 4

9 I183 657338 Nylon Ring 1 10 I524 656797 Plastic Handle (1/2 x 3) 1 11 I188 661035 Crank Handle 1 12 I187 657493 Rear Shaft Support 1 13 I186 657336 1-11/16 Plastic Bushing 1 14 I185 657733 Rotation Worm 1 15 I184 657335 1-5/16 Plastic Bushing 1 16 I397 660988 Decal, Safety Procedures 1

Snowblower Mount Assembly

ITEM WLK RAD NO. PART PART DESCRIPTION NO. NO. NO. REQ’D

Fasteners

F005 1/4-20 ESNA Nut 1 F016 1/2-13 Self-Locking Nut 4 F020 5/16-18 ESNA Nut 18 F032 1/4-20 x 3/4 Hex Bolt 10 F036 1/4-20 x 1/2 SBH Screw 1 F049 5/16 SAE Washer 2 F051 3/8 SAE Washer 10 F168 5/16 Split Lock Washer 10 F169 5/16 x 1 Carriage Bolt 6 F174 1/2-13 x 1-1/4 Hex Bolt 4 F175 1/2 Split Lock Washer 4 F381 1/4-20 Hex Nut 10

NOTE: Decals are illustrated in greater detail on pages 6-7 of this

manual.

NOTE: O/L indicates “Obtain Locally.”

17 4407-5 Bow Tie Cotter Pin 2 18 6621-1 Clevis Pin (1/2 x 2) 2 19 6670-2 Parallel Bar Assembly 1 20 5830 654106 Grease Fitting 1 21 I189 669691 Quick Hitch (Female) 1

Reduction Box Assembly

22 I196 669612 PTO Guard 1 23 O/L 5/16-NC x 1/2 Serrated 2

Flange Bolt 24 I164 657355 Reduction Box 1 25 I543 0300002 Carriage Bolt, 5/16 x 3/4 10

Snowblower Frame Assembly

26 5800-9 2500938 Decal, Walker Round (4-3/4”) 2 27 I125 669674 Skid Shoe 2 28 6625-8 42” Cutting Edge 1 29 669690 Frame 1 30 I205 657332 Worm Gearbox Support 1 31 5809-2 2500937 Decal, Walker Logo 1 32 O/L 5/16-NC x 3/4 Hex Bolt 2

Beginning S/N 21508289

Eective Date 03.25.15

Use only genuine Walker® replacement parts

SNOWBLOWER HOUSING COMPONENTS H12

F020

F169

F381

F051

F016

F381

F049

F036

F175

F032

F005

F174

17 18

F381

F020

F032

F168

F169

F020

F032

F381

F051

F032

F381

F051

F020

F168

F169

F168

F020

F174

F175

F016

F051

F168

F020

SNOWBLOWER DRIVE COMPONENTS H17

ITEM WLK RAD NO. PART PART DESCRIPTION NO. NO. NO. REQ’D

Driveline and Auger Components

1 I394 657762 Decal, Rotating Auger 2 2 NS 655683 Decal, Check Oil Level 1 3 NS 657804 Decal, Lubricate Chain 1 4 I120 656589 Bearing Flange 6 5 I434 665495 Bearing With Locking Collar 1 6 I163 656570 40 x 38 Chain 1 7 I161 656543 Sprocket (H40B32) 1 8 I512 665494 1” Bearing 4

(Includes Item # F309) 9 O/L 5/16-NC x 5/8 Carriage Bolt 6 10 I153 657250 Drive Shaft (with Sprocket), 1

H40C11 11 6671-10 U-Joint Shaft Assembly, Spline 1

(Includes Items # 25-27) 12 I395 657763 Decal, Rotating Driveline 1 13 6671-1 PTO Outer Shield 1 14 6651-5 Bearing & Retainer Kit 1 15 NS 657346 Decal, Use Shear Bolts 1 16 I543 0300002 Carriage Bolt, 5/16 x 3/4 3 17 I105 656053 Shear Bolt (1/4-NC x 1) 1

With Locknut 18 I209 4300055 Bushing 2 19 I102 657327 Fan Assembly 1

(Includes Item # 31) 20 I104 655874 Fan Adapter Shear Plate 1 21 666738 Auger, LH 1 22 I114 667786 Shear Bolt (5/16-18 x 2-1/4) 2

Lock & Nut 23 I113 657334 Bearing Flange 2 24 5830 654106 Grease Fitting 2 25 I130 655967 Woodruff Key 1 26 660390 Output Shaft 1 27 I200 4500035 Gearbox 1

(Includes Items # 1-13) I101 663030 Gearbox (Usimax) 1 NS 665775 Seal Kit 1

28 666737 Auger, RH 1 29 I106 0100024 5/16-18 x 2 Hex Bolt, Grade 8 1

ITEM WLK RAD NO. PART PART DESCRIPTION NO. NO. NO. REQ’D

Fasteners

F004 1/4-20 Keps Nut 1 F020 5/16-18 ESNA Nut 22 F034 5/16-18 x 3/4 Hex Bolt 6 F113 5/16-18 x 5/16 Set Screw 2 F149 1/4 x 1/4 x 1-1/2 Key 1 F168 5/16 Split Lock Washer 15 F235 5/16-18 x 2-1/2 Hex Bolt 4 F255 5/16-18 x 1-1/2 Hex Bolt 2 F271 1/4-20 x 2-1/4 Hex Bolt 1 F309 1/4-28 x 1/4 Set Screw 5 F318 3/8-16 x 3/4 SQH Set Screw 1 F447 1/4 x 1/4 x 1 Key 1

NOTE: Decals are illustrated in greater detail on pages 6-7 of this

manual.

NOTE: All NS items are not sold by Walker Manufacturing.

NOTE: O/L indicates “Obtain Locally.”

Beginning S/N 21516633

Eective Date 09.22.15

Use only genuine Walker® replacement parts.

SNOWBLOWER DRIVE COMPONENTS H17

F113

F271

F447

F309

F020

F168

F113

F020

F168

F034

F168

F020

F309

F168

F020

F318

F004

F149

F034

F020

F255

F020

F168

F309

SNOWBLOWER HOUSING COMPONENTS H17

ITEM WLK RAD NO. PART PART DESCRIPTION NO. NO. NO. REQ’D

Chute Rotation Assembly

1 I169 661168 Chute, Base and Knobs 1 (Includes items 1-5,7,8, and 16)

2 I396 657761 Decal, Keep Hands Out 1

3 I172 658468 7/16 Nylon Washer 2

4 I171 658467 11/32 Nylon Washer 2

5 I170 657309 5/16-18 Knob 2

6 I175 657308 Hand Guard 1

7 O/L 1/4 Lock Washer 8

8 I522 657333 Retaining Plate 4

Snowblower Mount Assembly

17 4407-5 Bow Tie Cotter Pin 2 18 6621-1 Clevis Pin (1/2 x 2) 2 19 6670-7 Parallel Bar Assembly 1 20 669693 Quick Hitch (Female) 1 21 5830-3 Grease Fitting (45 Deg) 1

ITEM WLK RAD NO. PART PART DESCRIPTION NO. NO. NO. REQ’D

Snowblower Frame Assembly

26 5800-9 2500938 Decal, Walker Round (4-3/4”) 2 27 I125 669674 Skid Shoe 2 28 6625-9 659862 50” Cutting Edge 1 29 669692 Frame 1 30 I205 657332 Worm Gearbox Support 1 31 5809-2 2500937 Decal, Walker Logo 1

Fasteners

F003 1/4-28 Hex Nut 10 F005 1/4-20 ESNA Nut 1 F016 1/2-13 Self-Locking Nut 4 F020 5/16-18 ESNA Nut 18 F032 1/4-20 x 3/4 Hex Bolt 10 F034 5/16-18 x 3/4 Hex Bolt 2 F036 1/4-20 x 1/2 SBH Screw 1 F049 5/16 SAE Washer 2 F051 3/8 SAE Washer 10 F168 5/16 Split Lock Washer 10 F169 5/16 x 1 Carriage Bolt 6 F175 1/2 Split Lock Washer 4 F469 1/2-13 x 1-1/4” Hex Bolt, GR 5 4

NOTE: Decals are illustrated in greater detail on pages 6-7 of this

manual.

Reduction Box Assembly

22 I196 669612 PTO Guard 1 23 O/L 5/16-NC x 1/2 Serrated 2

Flange Bolt 24 I164 657355 Reduction Box 1 25 I543 0300002 Carriage Bolt, 5/16 x 3/4 10

NOTE: O/L indicates “Obtain Locally.”

Beginning S/N 21516633

Eective Date 09.22.15

Use only genuine Walker® replacement parts.

SNOWBLOWER HOUSING COMPONENTS H17

F020

F032

F169

F003 F049

F032

F003

F169

F020

F032

F003

F032

F003

F016

F036

F005

F175

F469

F051

F020

F168

F169

F175

F016

F020

F168

F051

F034

F020

F051

F168

F020

F168

F051

OPERATOR’S NOTES

LIMITED WARRANTY

FOR WALKER

TWOSTAGE SNOWBLOWER

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 two-stage snowblower are covered by this warranty.

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 Operator’s Manual for operation and maintenance.

B. The customer shall pay any charges for making service calls and/or for transporting the attachment to and from the place where the inspection and/or warranty work is performed.

How to obtain service under this warranty:

Warranty service can be arranged by contacting the dealer where you purchased the machine 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.

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 SPECIAL DAMAGES AND/OR EXPENSES IN CONNECTION WITH THE PURCHASE OR USE OF THE MACHINE. 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 warranty 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.

WALKER MFG. CO. 5925 HARMONY ROAD, FORT COLLINS, CO. 80528  9702215614

FORM NO. 041217

PRINTED IN USA

Walker H12, H17 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual