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Walker H12 Operator's Manual

Two-stage snowblower
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Download this manual See also: Operator's Manual
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: 21810237
H17 Beginning S/N: 21810546
P/N: 6670-16

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  • Page 1 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 H12 Beginning S/N: 21810237...
  • Page 2 (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.

  • Page 3: Table Of Contents

    H19 Hitch Lock Tension Adjustment _________28 Assembly Instructions ________________11 Parts Diagrams ______________________ 29 Installation Instructions ______________13 H12 SNOWBLOWER DRIVE COMPONENTS ___29 H10: LOCKING/REMOVING IMPLEMENTS ____13 H12 SNOWBLOWER HOUSING H19: LOCKING/REMOVING IMPLEMENTS ____14 COMPONENTS ___________________________31 H19: FLOAT FUNCTION ADJUSTMENT _______15 H17 SNOWBLOWER DRIVE COMPONENTS ___33...

  • Page 4: General Information

    For ready reference, please record these numbers safety. Most accidents associated with the opera- in the space provided. tion or maintenance of a Walker product are caused by disregarding basic safety precautions or specific warnings. Such accidents, in most cases, can be Two-Stage Snowblower Model No.

  • Page 5: Specifications

    1/4 to 3/4 in. (6 to 19 cm) * H12 with model MT, H17 with model MH ● The following are required for mounting the H12 42 in. Two-Stage Snowblower C, T, D Tractors: H10 Implement Mount Hitch H Tractors: H19 Implement Mount Hitch ●...

  • Page 6: Component Identification

    Component Identification Deflector Deflector Position Control Knob Hand Guard Chute Chute Rotation Handle Gearbox Support Bracket Auger Gearbox Auger Frame Two-Stage Snowblower Front View and Right Side View (Not Installed)
  • Page 7 Component Identification Deflector Deflector Position Control Knob Chute Chute Rotation Handle Snowblower Housing Reduction Box Cover Skid Shoe Skid Shoe Female Quick Hitch PTO Drive Shaft Two-Stage Snowblower Rear View (Not Installed)

  • Page 8: Safety Instructions

    The Walker Rider Lawnmower has been designed with many safety features to protect the operator The seriousness or degree of importance of each from personal harm or injury.

  • Page 9: Operating

    Safety Instructions Do not wear loose fitting clothing that could get 11. Never attempt to make any adjustments while the engine is running, except where caught in moving parts. Do not operate this specifically instructed to do so. machine while wearing shorts; always wear adequate protective clothing, including long 12.
  • Page 10 Safety Instructions 11. Be careful never to throw snow towards people DANGER or cars, and never allow anyone in front of the implement. Do not operate around overhanging tree 12. Watch out for hazards hidden under snow that branches or bushes at the same height as could enter the chute while operating.

  • Page 11: Maintenance

    Safety Instructions c. Disconnect the fuel solenoid wire [diesel 6. Always use the proper engine service man- engines] or spark plug wire(s) [gasoline en- ual when working on the engine. Unautho- gines]. rized maintenance operations or modifications to the engine may result in unsafe operating d.

  • Page 12: Safety, Control, And Instruction Decals

    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 machine into operation. The Decal Part Number is listed below and in the Parts Manual. Safety Decal: Rotating Driveline Safety Decal: Keep Hands Out Location: PTO Shield...
  • Page 13 Shut off engine before AND OPEN FLAME. NEVER ALLOW PASSENGERS ON THE ATTACHMENT. servicing. Important Decal: Shear Bolts Location: Inside Housing Behind Auger Decal: Walker Decal Part Number: 2500574 (RAD) Location: Snowblower Housing Part Number: 5800-9 IMPORTANT USE SPECIAL AUGER AND TIGHTEN THE SHEAR BOLTS TO FAN SHEAR BOLTS ONLY.

  • Page 14: Assembly Instructions

    Assembly Instructions 1. Remove the rear shaft support from the chute 5. Install the chute over the plastic insert and se- base lip and discard the existing bolt. Refer to cure with four retaining plates as shown in In- stall Chute and Retaining Plates, using two Install Rotation Worm Assembly to locate the (2) 1/4-20 x 3/4 in.
  • Page 15 Assembly Instructions 7. Install the hand guard on the chute, with the top 10. Secure the yoke to the drive shaft with a 1/4 x section inside the chute and the bottom section 2-1/4 in. hex bolt (F271) and 1/4-20 keps nut outside the chute base ring.

  • Page 16: Installation Instructions

    Female Receiver Male Hitch Male to Female Hitch Connection (H12 Snowblower Implement Shown) Install PTO Coupler on Drive Shaft 2. Retract the spring-loaded quick disconnect ring on the PTO Coupler and insert the Coupler In- stallation Tool (provided in Owner’s Packet) as shown in the photo below.

  • Page 17: H19: Locking/Removing Implements

    Installation Instructions ● Removing: Remove the linch pin from the latch and move the hitch lock lever backward to the UNLOCKED position as shown in Hitch Lock Lever in “UNLOCKED” Position photo. Locking Lever UNLOCKED H19 Hitch Lock Lever in “UNLOCKED” Position (View From Right Side of Tractor) Locking Lever UNLOCKED...

  • Page 18: H19: Float Function Adjustment

    Installation Instructions Coupler Ring in Released Position PTO Drive Shaft Actuator Motor Clevis Pin PTO Coupler U-Joint Non-Float Setting With Clevis Pin Installed Quick Disconnect Ring in “Released” Position Internal Balls PTO Drive Locked on Shaft Shaft Actuator Motor Clevis Pin Removed Coupler Ring in PTO Coupler...
  • Page 19 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 mod- els are available from your Walker dealer, or a sandbag or similar weight may be used.

  • Page 20: Operating Instructions

    Operating Instructions PREOPERATION CHECKLIST CHECK CUTTING EDGE Before operating the snowblower for the first time, Make sure the cutting edge is not damaged or and as a routine before daily operations, it is im- worn beyond limits. Refer to REPLACING AND portant to make sure the machine is properly pre- REPAIRING PARTS - Snowblower Cutting pared and ready for operation.

  • Page 21: Snowblower Controls

    Operating Instructions SNOWBLOWER CONTROLS Chute Rotation Handle The chute rotation handle is located on the rear of the snowblower, behind and to the right of the dis- charge chute. The chute rotates in a 228 degree arc, by cranking the rotation handle. ●...

  • Page 22: Snowblower Operation

    Operating Instructions SNOWBLOWER OPERATION DANGER CAUTION If the auger strikes a solid object or the ma- chine begins to vibrate abnormally, imme- Before operating the snowblower, read and diately disengage the PTO clutch, stop the understand all Safety Instructions and Op- engine, and wait for all moving parts to erating Instructions.

  • Page 23: Removing Snow

    Operating Instructions REMOVING SNOW Snow thrown to both sides DANGER DO NOT blow snow with bystanders in the area (especially children or pets). Start Here A definite operating pattern is required to efficiently Finish Here clean snow from an area. Each pattern described below clears all the snow in one pass (of the pattern) Snow thrown to both sides and prevents throwing snow in unwanted places.

  • Page 24: Removal And Storage

    Operating Instructions ● 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.

  • Page 25: Maintenance Instructions

    Maintenance Instructions 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 off the machine, and remove the ignition key before performaing any mainte- nance on equipment.

  • Page 26: Lubrication

    Maintenance Instructions LUBRICATION 3. Adjust the chain tension if necessary. Refer to REPLACING AND REPAIRING - Snowblow- Proper lubrication is an important maintenance pro- er Reduction Chain and ADJUSTMENTS - cedure. It reduces wear and makes the machine Snowblower Reduction Chain Tension in this quieter and easier to operate.

  • Page 27: Lubrication Points Diagram

    Maintenance Instructions Ident Location Lubrication Type No. Places Auger Sections Grease Gearbox Oil* Reduction Chain Oil** Sprockets PTO Shaft Assembly Grease (Spline Slide Area) PTO Universal Joints Grease Quick Hitch Pivot Grease * Gearbox is permanently lubricated and sealed requiring no scheduled lubrication. Oil level should be checked every 25 hours or when an oil leak is noted.

  • Page 28: Replacing And Repairing Parts

    Maintenance Instructions REPLACING AND REPAIRING PARTS Snowblower Reduction Chain The reduction chain should be replaced if, when ad- WARNING justed 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 To prevent accidental engine starting when the sprockets.

  • Page 29: Snowblower Reduction Sprockets

    Maintenance Instructions 5. Adjust the chain tension. Refer to ADJUST- 7. Lubricate and tension the reduction chain. Re- MENTS - Snowblower Reduction Chain Ten- fer to LUBRICATION - Snowblower Reduc- sion in this section. tion Chain, and ADJUSTMENTS - Snowblow- er Reduction Chain Tension in this section.

  • Page 30: Adjustments

    Maintenance Instructions ADJUSTMENTS 4. While applying downward pressure to maintain chain tension, tighten the four (4) carriage bolts Snowblower Skid Shoes and nuts to 25 ft•lbs (34 N•m) as shown in Ten- sioning Reduction Chain photo. Adjust the skid shoes to allow the required clear- ance under the blade.

  • Page 31: H19 Hitch Lock Tension Adjustment

    Maintenance Instructions 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 se- cure the implement. To adjust the tension on the tongue latch, remove the bowtie clip and the clevis pin as shown in Tongue Latch Tension Adjustment, and twist the male clevis clock-...

  • Page 32: Parts Diagrams

    H40C11 NOTE: Decals are illustrated in greater detail on pages 6-7 of this 6671-10 U-Joint Shaft Assembly, Spline manual. (Includes Items # 27-29) NOTE: NS items are “Not Sold” by Walker Manufacturing. I395 657763 Decal, Rotating Driveline 6671-1 6671-1 PTO Outer Shield NOTE: O/L indicates “Obtain Locally.”...
  • Page 33 SNOWBLOWER DRIVE COMPONENTS (H12) F113 F447 F113 F020 F309 6 F020 F309 F309 F034 F020 F318 F004 F149 F271 24 6 F020 F309 F034 F255 F020 F020 F020 F255 F309 Beginning S/N 21810237 Use only genuine Walker® replacement parts...
  • Page 34 5800-9 2500938 Decal, Walker Round (4-3/4”) I125 669674 Skid Shoe 6625-8 42” Cutting Edge 669690 Frame I205 657332 Worm Gearbox Support 5809-2 2500937 Decal, Walker Logo 5/16-NC x 3/4 Hex Bolt Beginning S/N 21810237 Use only genuine Walker® replacement parts...
  • Page 35 F032 F032 F032 F032 F381 F381 F381 F036 F051 F005 F175 F381 F016 F020 F168 F051 F174 F174 F175 F051 F168 F020 F016 F020 F020 F020 F168 F020 F168 F051 F169 Beginning S/N 21810237 Use only genuine Walker® replacement parts...

  • Page 36: H17 Snowblower Drive Components

    (Includes Items # 25-27) I395 657763 Decal, Rotating Driveline manual. 6671-1 PTO Outer Shield NOTE: All NS items are not sold by Walker Manufacturing. 6651-5 Bearing & Retainer Kit 657346 Decal, Use Shear Bolts NOTE: O/L indicates “Obtain Locally.” I543...
  • Page 37 F447 F113 F113 4 F168 F020 F309 F020 4 F168 F309 F309 F034 F020 F168 F318 F004 F271 F149 23 F168 F020 F309 F034 F255 F020 F020 F255 F020 F168 F309 Beginning S/N 21810546 Use only genuine Walker® replacement parts...
  • Page 38 Grease Fitting (45 Deg) manual. NOTE: O/L indicates “Obtain Locally.” Reduction Box Assembly I196 669612 PTO Guard 5/16-NC x 1/2 Serrated Flange Bolt I164 657355 Reduction Box I543 0300002 Carriage Bolt, 5/16 x 3/4 Beginning S/N 21810546 Use only genuine Walker® replacement parts...
  • Page 39 F032 F032 F032 F032 F003 F003 F003 F036 F034 F051 F005 F175 F003 F016 F020 F168 F051 F469 F469 F175 F051 F020 F168 F016 F020 F020 F168 F168 F020 F051 F169 Beginning S/N 21810546 Use only genuine Walker® replacement parts...

  • Page 40: Maintenance And Service Record Sheet

    MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...
  • Page 41 MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...
  • Page 42 MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...

  • Page 43: Warranty

    (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.
  • Page 44 WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 FORM NO. 110918 PRINTED IN USA www.walker.com ©2018 WALKER MFG. CO...

This manual is also suitable for:

H17

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