Walker RB6650, SB6670, DB6680, DB6660, IH6620 Operating Instructions, TWO-STAGE Snowblower Controls

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Operating Instructions

Snow Removal

WARNING

Foreign objects in snow may be thrown farther than the snow. Use the slowest brush speed that will perform the job. Stay aware of the broom discharge direc- tion at all times.

1.The rotary broom works best on snow depths of 4 in. (10 cm) or less. Larger amounts of snow can be moved if the ground speed is reduced.

2.To avoid snow being blown back onto the tractor and operator, sweep with the wind blowing in the direction of broom discharge.

Lawn Thatching and Leaf Raking

CAUTION

Optional gauge wheels must be installed to perform these types of operation in or- der to avoid excessive brush ground con- tact.

1.Bristles should barely touch the ground for lawn thatching, and barely touch the grass in leaf rak- ing operations.

2.Slower brush speed and ground speed are more adequate for lawn thatching. This will pre- vent “bouncing” which could damage the lawn due to excessive ground contact.

3.Minimize dust by sweeping when moisture is high (but not wet) whenever possible.

TWO-STAGE SNOWBLOWER CONTROLS

Chute Rotation Handle

The chute rotation handle is located on the rear of the snowblower head, on the lower RH side of the discharge chute. The chute rotates in a 228 degree arc, by cranking the rotation handle. Turning the handle clockwise rotates the chute clockwise. Turning the handle counterclockwise rotates the chute counterclockwise.

Rotate Chute

Clockwise

Rotate Chute

Counterclockwise

Chute Rotation

Handle

Chute Rotation Handle

Deflector Position Control Knobs

Set the angle of the deflector according to the dis- tance the snow must be thrown. To adjust the de- flector angle, loosen the two knobs on the sides of the deflector, slide the deflector to the required an- gle, and securely retighten the two knobs.

Deflector Position

Control Knobs

Deflector Position Control Knobs

TWO-STAGE SNOWBLOWER OPERATION

CAUTION

Before operating the snowblower, read and understand all Safety Instructions and

Operating Instructions.

Raising and Lowering the Snowblower

Refer to Implement Lift Switch in this section.

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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 Do not operate with bystanders in the area Safety InstructionsBefore Operating 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 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 Attach Broom to Implement Hitch Prepare Rotary Broom for InstallationAssemble Rotary Broom Driveline Connect Broom Driveline to Tractor PTO ShaftGHS Blower Intake Cover Adjust Brush to Ground ContactLock Stopper Pin in Place Install Hand Guard on Chute Install Plastic Insert over Chute Base LipInstall Skid Shoes Snowblower Installation Install Rotation Worm AssemblyInstall Chute over Plastic Insert 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 Operation Operating InstructionsTWO-STAGE Snowblower Controls 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 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 Rotary Broom Drive Sprocket Remove Chain Guard Loosen Chain TensionReplace Drive Chain Sprocket WearAlign Sprockets Check Sprocket Alignment with Chain InstalledRemove and Replace Sprocket Replace Snowblower Gearbox Reduction Sprocket Wear Replace Reduction ChainTwo-Stage Snowblower Reduction Sprocket Debris Blower Drive BeltAdjustments Dozer Blade Skid ShoesGauge Wheel Height Adjustment Skid Shoe Height Adjustment Rotary Broom Brush LevelingSide to Side Level Adjustment Rotary Broom Gauge Wheels 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 Detach Blade from Implement Hitch Removal and Storage InstructionsRemoval 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 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 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