Walker RB6650, SB6670 Remove Chain Guard Loosen Chain Tension, Replace Drive Chain, Sprocket Wear

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Maintenance Instructions

REPLACING/REPAIRING

2.Loosen the bearing flange mounting nuts and bolts. Position the chain tension block so that the chain has as much slack as possible. Tight- en the bearing flange mounting nuts and bolts slightly to hold the bearing flange in this posi- tion.

Tension

Block

Master Link

Bearing

Flange Bolts

Chain Guard

Remove Chain Guard

and Loosen Chain Tension

3.Turn the brush drive shaft until the master link for the chain is accessible.

4.Remove the master link from the chain and re- move the chain from the sprocket.

5.Place the new chain on the sprockets and install the master link. Be sure to install the clip on the master link properly. The closed end of the clip should point in the direction of chain travel.


			Plate

Closed End
Closed End		Open End
of Clip		of Clip
						Master Link



		Replace Drive Chain

6.Adjust the chain. Refer to ADJUSTMENTS of Rotary Broom Drive Chain Tension in this section.

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

Rotary Broom Drive Sprocket

A sprocket should be replaced when the teeth be- come asymmetric (when the front side of a tooth is a different shape than the back side of the tooth).

Symmetric (Acceptable)

Asymmetric (Replace)

Sprocket Wear

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

1.Remove the chain guard and drive chain. Refer to REPLACING/REPAIRING of Rotary Broom Drive Chain in this section.

2.Loosen the set screws that fasten the sprocket to the drive shaft.

3.Slide the sprocket off the drive shaft. Use a pull- er if necessary.

4.If necessary, clean off the end of the drive shaft with an emery cloth or a wire brush.

5.Place the key in the keyway on the drive shaft.

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Contents Illustrated Parts Manual Foreword Table of Contents Implement Hitch Assembly Electrical Components Maintenance Schedule ChartTorque Specifications KEY to Abbreviations Used in Illustrated Parts ListIdentifying Number Locations General InformationGlossary Fill In By PurchaserSerial Number Serial Number Rotary Broom Serial Number LocationUnit Descriptions Dozer Blade SpecificationsImplement Hitch Rotary BroomTWO-STAGE Snowblower Debris Blower Implement Hitch Top View Not Installed Component IdentificationDozer 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 Before Operating Safety InstructionsDo not operate with bystanders in the area Operating Maintenance SAFETY, CONTROL, and Instruction Decals PTO Shield Walker P/N Attaching Hitch Hitch Mount AdjustSAFETY, CONTROL, and Instruction Decals Implement Hitch Installation Assembly InstructionsSetup Instructions Implement Hitch Jam Nut AdjustmentAttach Wiring Harness and Toggle Switch Drill Holes for Implement Hitch WiringAttach Toggle Switch Mounting Bracket Connect Harness Wire to Circuit BreakerComplete Implement Hitch Wiring Implement Hitch Wiring Diagram Insert Adjustment Pin and Set Blade Angle Attach Spring to Blade AssemblyInsert Female Hitch into Blade Attachment Rotary Boom Installation Install Skid ShoesAttach Blade to Tractor Attach Broom to Implement Hitch Prepare Rotary Broom for InstallationAssemble Rotary Broom Driveline Connect Broom Driveline to Tractor PTO ShaftLock Stopper Pin in Place Adjust Brush to Ground ContactGHS Blower Intake Cover Install Hand Guard on Chute Install Plastic Insert over Chute Base LipInstall Chute over Plastic Insert Install Rotation Worm AssemblyInstall Skid Shoes Snowblower Installation Attach Drive Shaft Yoke to Reduction Shaft Install Bolt in Reduction BoxInstall Reduction Box Cover Mount Female Hitch to SnowblowerAttach Parallel Bar to Female Hitch Attach Snowblower to Implement HitchConnect Driveline Coupler to Tractor PTO Insert Rotation Handle into Rotation WormAttach Tractor PTO to Debris Blower Input Shaft Attach Debris Blower to Implement HitchRefer to Angle Adjustment Pin in Operating Refer to Hitch Locking Lever in Operating InstrucRefer to Angle Adjustment Lever in Operating Refer to Ground Contact Knob in OperatingTWO-STAGE Snowblower Controls Operating InstructionsTWO-STAGE Snowblower Operation Engaging the Snowblower PTO Clutch EngagedThrow Snow to Both Sides Clogging Checklist Throw Snow to One SideRaising and Lowering the Debris Blower Engaging the Debris Blower Stopping the MachineModel Service Item Daily Hours Maintenance InstructionsMaintenance procedures requiring special training or Tools should be performed by a trained technicianRotary Broom Gearbox with Cover Removed LubricationRotary Broom Gearbox Remove Chain Guard CoverRemove Reduction Box Cover Snowblower Lubricant Plug LocationTwo-Stage Snowblower Reduction Chain Grease Fitting and Oil Point LubricationLubrication 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 Dozer Blade Cutting Edge Replacement Rotary Broom Brush REPLACING/REPAIRINGSupport Rear of Broom Housing Loosen Chain Idler and Set Screws Remove Brush from Broom HousingReplace Rotary Broom Gearbox Rotary Broom Drive Chain Rotary Broom Drive Sprocket Remove Chain Guard Loosen Chain TensionReplace Drive Chain Sprocket WearRemove and Replace Sprocket Check Sprocket Alignment with Chain InstalledAlign Sprockets Replace Snowblower Gearbox Reduction Sprocket Wear Replace Reduction ChainTwo-Stage Snowblower Reduction Sprocket Debris Blower Drive BeltAdjustments Dozer Blade Skid ShoesSide to Side Level Adjustment Rotary Broom Gauge Wheels Skid Shoe Height Adjustment Rotary Broom Brush LevelingGauge Wheel Height Adjustment Ance under the blade. On level, paved surfaces Loosen Chain Idler NutProper Drive Chain Tension Two-Stage Snowblower Skid Shoes Surface. On uneven or gravel surfaces, allow 1/2Proper Drive Belt Deflection Drive Belt Tension Adjustment Debris Blower Rotation Pinions Debris Blower Rotation Pinions Handle AdjustmentTorque Specifications Removal Removal and Storage InstructionsDetach Blade from Implement Hitch Detach Rotary Broom from Implement Hitch Detach Snowblower from Implement HitchDetach Implement Hitch from Tractor END of Season StorageRotary Broom Implement Hitch Assembly FastenersUse only genuine Walker replacement parts Implement Hitch Electrical Components Fasteners Implement Hitch Electrical ComponentsRAD Technologies Inc Implement Hitch Electrical Components Dozer Blade Assembly Dozer Blade Assembly Rotary Broom Assembly Rotary Broom AssemblyKit I391 Side Caster Wheels Kit Rotary Broom Assembly Driveline and Sprockets Assembly Fasteners Gearbox AssemblyRotary Broom Drive Components Rotary Broom Drive Components Snowblower Mount Assembly Snowblower Housing ComponentsChute Rotation Assembly Reduction Box AssemblySnowblower Housing Components Snowblower Drive Components Driveline and Auger 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