Walker IH6620, SB6670, DB6680, DB6660, RB6650 owner manual Engaging the Snowblower, PTO Clutch Engaged

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Operating Instructions

Engaging the Snowblower

1.Make sure that the snowblower is clear of snow and/or ice before engaging the snowblower.

2.Make sure that the auger and fan operate freely.

3.Check the oil level in the worm gearbox and if necessary, add SAE 90 E.P. (Extreme Pres- sure) oil. Make sure the oil level is up to the side plug. (Refer to LUBRICATION of Two-Stage Snowblower Gearbox in Maintenance Instruc- tions.)

4.Check the three (3) shear bolts, one on each au- ger section, and one between the fan and gear- box for proper tightness, approximately 8 ft-lb (11 N·m).

5.Adjust the snowblower so that it runs level.

6.Set the engine throttle at about 1/3 speed. DO

NOT attempt to engage the PTO clutch at high engine speeds. This will drastically short- en drive belt life. Use only moderate engine speed when engaging the PTO clutch.

7.Pull the PTO clutch lever SLOWLY to engage the snowblower.

NOTE: For cold weather operation, allow suffi- 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 off the seat and engaging the PTO clutch; the en- gine 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).

DANGER

If the auger strikes a solid object or the machine begins to vibrate abnormally, im- mediately 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 snow- blower and repair any damage before re- starting the engine and operating the machine. Make sure auger blades are in good condition and all bolts are tight.

Engaged

Position

PTO Clutch Engaged

Disengaged

Position

PTO Clutch Disengaged

Recommendations For Snowblowing

IMPORTANT: Operate the engine at full speed when snowblowing, to allow the engine to produce full horsepower and to increase efficiency of the en- gine cooling system.

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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 Safety Instructions Before OperatingDo not operate with bystanders in the area 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 Attach Spring to Blade Assembly Insert Adjustment Pin and Set Blade AngleInsert Female Hitch into Blade Attachment Install Skid Shoes Rotary Boom InstallationAttach Blade to Tractor Connect Broom Driveline to Tractor PTO Shaft Prepare Rotary Broom for InstallationAssemble Rotary Broom Driveline Attach Broom to Implement HitchAdjust Brush to Ground Contact Lock Stopper Pin in PlaceGHS Blower Intake Cover Install Plastic Insert over Chute Base Lip Install Hand Guard on ChuteInstall Rotation Worm Assembly Install Chute over Plastic InsertInstall Skid Shoes Snowblower Installation 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 OperatingOperating Instructions TWO-STAGE Snowblower ControlsTWO-STAGE Snowblower Operation 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 REPLACING/REPAIRING Dozer Blade Cutting Edge Replacement Rotary Broom BrushSupport Rear of Broom Housing Remove Brush from Broom Housing Loosen Chain Idler and Set ScrewsReplace Rotary Broom Gearbox Rotary Broom Drive Chain Sprocket Wear Remove Chain Guard Loosen Chain TensionReplace Drive Chain Rotary Broom Drive SprocketCheck Sprocket Alignment with Chain Installed Remove and Replace SprocketAlign Sprockets Replace Snowblower Gearbox Debris Blower Drive Belt Replace Reduction ChainTwo-Stage Snowblower Reduction Sprocket Reduction Sprocket WearDozer Blade Skid Shoes AdjustmentsSkid Shoe Height Adjustment Rotary Broom Brush Leveling Side to Side Level Adjustment Rotary Broom Gauge WheelsGauge Wheel Height Adjustment 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 Removal and Storage Instructions RemovalDetach Blade from Implement Hitch 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 Implement Hitch Electrical Components Implement Hitch Electrical Components FastenersRAD 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 Gearbox Assembly Driveline and Sprockets Assembly FastenersRotary Broom Drive Components 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
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