Walker IH6620, SB6670, DB6680, DB6660, RB6650 Remove and Replace Sprocket, Align Sprockets

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Maintenance Instructions

REPLACING/REPAIRING

6.Align the slot in the new sprocket with the square key and slide the sprocket onto the drive shaft. Make sure the key is in place between the drive shaft and sprocket.

Drive

Sprocket

Square Key

Set Screw

Drive

Shaft

Set Screw

Remove and Replace Sprocket


	Proper		Improper
	Alignment		Alignment

Align Sprockets

7.Position the sprocket on the drive shaft so it is aligned with the chain drive shaft sprocket.

8.When the sprockets are aligned properly, tight- en the set screw in the drive shaft sprocket.

9.Install chain and adjust the chain tension. Refer to ADJUSTMENTS of Rotary Broom Drive Chain Tension in this section.

10.With the chain installed, recheck the sprocket alignment.

11.Lubricate the drive chain. Refer to LUBRICA- TION of Rotary Broom Drive Chain in this sec- tion.


	Proper		Improper
	Alignment		Alignment

Check Sprocket Alignment with Chain Installed

12.Reinstall the chain guard by reversing the re- moval procedures.

Two-Stage Snowblower Cutting Edge

NOTE: The cutting edge of the snowblower is re- versible 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 snow- blower housing, behind the cutting edge. Re- move 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 dulled or nicked, rotate the blade 180 degrees. (The sharp edge should now be at the bottom.) Re- install the cutting edge onto the snowblower housing by reversing the removal procedure.

3.If both edges are dull or nicked, remove the cutting edge and install a new one by reversing the removal procedure.

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Contents Illustrated Parts Manual Foreword Table of Contents KEY to Abbreviations Used in Illustrated Parts List Maintenance Schedule ChartTorque Specifications Implement Hitch Assembly Electrical ComponentsFill In By Purchaser General InformationGlossary Identifying Number LocationsSerial Number Rotary Broom Serial Number Location Serial NumberUnit Descriptions Rotary Broom SpecificationsImplement Hitch Dozer BladeTWO-STAGE Snowblower Debris Blower Component Identification Implement Hitch Top View Not InstalledDozer Blade Rear View and Right Side View Not Installed Rotary Broom Rear View and Right Side View Not Installed TWO-STAGE Snowblower Two-Stage Snowblower Rear View Not Installed Debris Blower Front View and Left Side View Not Installed Debris Blower Rear View and Right Side View Not Installed Do not operate with bystanders in the area Safety InstructionsBefore Operating Operating Maintenance PTO Shield Walker P/N Attaching Hitch Hitch Mount Adjust SAFETY, CONTROL, and Instruction DecalsSAFETY, CONTROL, and Instruction Decals Implement Hitch Jam Nut Adjustment Assembly InstructionsSetup Instructions Implement Hitch InstallationConnect Harness Wire to Circuit Breaker Drill Holes for Implement Hitch WiringAttach Toggle Switch Mounting Bracket Attach Wiring Harness and Toggle SwitchComplete Implement Hitch Wiring Implement Hitch Wiring Diagram Insert Female Hitch into Blade Attachment Attach Spring to Blade AssemblyInsert Adjustment Pin and Set Blade Angle Attach Blade to Tractor Install Skid ShoesRotary Boom Installation Connect Broom Driveline to Tractor PTO Shaft Prepare Rotary Broom for InstallationAssemble Rotary Broom Driveline Attach Broom to Implement HitchGHS Blower Intake Cover Adjust Brush to Ground ContactLock Stopper Pin in Place Install Plastic Insert over Chute Base Lip Install Hand Guard on ChuteInstall Skid Shoes Snowblower Installation Install Rotation Worm AssemblyInstall Chute over Plastic Insert Mount Female Hitch to Snowblower Install Bolt in Reduction BoxInstall Reduction Box Cover Attach Drive Shaft Yoke to Reduction ShaftInsert Rotation Handle into Rotation Worm Attach Snowblower to Implement HitchConnect Driveline Coupler to Tractor PTO Attach Parallel Bar to Female HitchAttach Debris Blower to Implement Hitch Attach Tractor PTO to Debris Blower Input ShaftRefer to Hitch Locking Lever in Operating Instruc Refer to Angle Adjustment Pin in OperatingRefer to Ground Contact Knob in Operating Refer to Angle Adjustment Lever in OperatingTWO-STAGE Snowblower Operation Operating InstructionsTWO-STAGE Snowblower Controls PTO Clutch Engaged Engaging the SnowblowerThrow Snow to One Side Throw Snow to Both Sides Clogging ChecklistRaising and Lowering the Debris Blower Stopping the Machine Engaging the Debris BlowerTools should be performed by a trained technician Maintenance InstructionsMaintenance procedures requiring special training or Model Service Item Daily HoursRemove Chain Guard Cover LubricationRotary Broom Gearbox Rotary Broom Gearbox with Cover RemovedGrease Fitting and Oil Point Lubrication Snowblower Lubricant Plug LocationTwo-Stage Snowblower Reduction Chain Remove Reduction Box CoverLubrication Implement Hitch Lubrication Points Angle Adjustment Pin Oil Dozer Blade Lubrication Points Ident Rotary Broom Lubrication Points Location Type Two-Stage Snowblower Lubrication Points Ident Lubrication Location Type Debris Blower Lubrication Points Support Rear of Broom Housing REPLACING/REPAIRINGDozer Blade Cutting Edge Replacement Rotary Broom Brush Replace Rotary Broom Gearbox Rotary Broom Drive Chain Remove Brush from Broom HousingLoosen Chain Idler and Set Screws Sprocket Wear Remove Chain Guard Loosen Chain TensionReplace Drive Chain Rotary Broom Drive SprocketAlign Sprockets Check Sprocket Alignment with Chain InstalledRemove and Replace Sprocket Replace Snowblower Gearbox Debris Blower Drive Belt Replace Reduction ChainTwo-Stage Snowblower Reduction Sprocket Reduction Sprocket WearDozer Blade Skid Shoes AdjustmentsGauge Wheel Height Adjustment Skid Shoe Height Adjustment Rotary Broom Brush LevelingSide to Side Level Adjustment Rotary Broom Gauge Wheels Surface. On uneven or gravel surfaces, allow 1/2 Loosen Chain Idler NutProper Drive Chain Tension Two-Stage Snowblower Skid Shoes Ance under the blade. On level, paved surfacesProper Drive Belt Deflection Debris Blower Rotation Pinions Handle Adjustment Drive Belt Tension Adjustment Debris Blower Rotation PinionsTorque Specifications Detach Blade from Implement Hitch Removal and Storage InstructionsRemoval Detach Snowblower from Implement Hitch Detach Rotary Broom from Implement HitchEND of Season Storage Detach Implement Hitch from TractorRotary Broom Fasteners Implement Hitch AssemblyUse only genuine Walker replacement parts RAD Technologies Inc Implement Hitch Electrical ComponentsImplement Hitch Electrical Components Fasteners Implement Hitch Electrical Components Dozer Blade Assembly Dozer Blade Assembly Kit I391 Side Caster Wheels Kit Rotary Broom AssemblyRotary Broom Assembly Rotary Broom Assembly Rotary Broom Drive Components Gearbox AssemblyDriveline and Sprockets Assembly Fasteners Rotary Broom Drive Components Reduction Box Assembly Snowblower Housing ComponentsChute Rotation Assembly Snowblower Mount AssemblySnowblower Housing Components Driveline and Auger Components Snowblower Drive ComponentsSnowblower Drive Components Debris Blower Components Debris Blower ComponentsDebris Blower Components Debris Blower Manual Rotation Components Debris Blower Manual Rotation ComponentsDebris Blower Manual Rotation Components KEY to Abbreviations Used in Illustrated Parts Manual Limited Warranty For Walker Commercial Rider Mower Walker MFG. CO E. Harmony ROAD, Fort COLLINS, CO 80528 970