Walker DB6680 - Manuals

General Information 1 HIGHLIGHTED INFORMATION Walker Manufacturing recommends that any ser-vice requiring special training or tools be performedby an authorized Walker Mower Dealer. There areseveral general practices to be aware of in the areaof safety. Most accidents associated with the oper-ation ...

General Information 2 Implement Hitch Serial Number Location (Top View) Dozer Blade Serial Number Location (Rear View) Rotary Broom Serial Number Location (Rear View) Two-Stage Snowblower Serial Number Location (Rear View and RH View) Debris Blower Serial Number Location (Rear View and RH View) Seri...

Specifications 4 MODEL IMPLEMENTS IMPLEMENT HITCH Height 10 in. (25 cm) Width 33-1/2 in. (85 cm) Length 30 in. (76 cm) Overall Length Installed on Tractor 69-3/4 in. (177 cm) Weight 70 lb (32 kg) Lift 12 Volt DC Electric Ram Linear Actuator, Operated by Toggle SwitchMounted on FSC Lever DOZER BLADE ...

Specifications 6 MODEL IMPLEMENTS DEBRIS BLOWER Height 28-1/2 in. (72 cm) Width 26 in. (66 cm) Length 34-3/4 in. (88 cm) Overall Length Installed on Tractor 102-1/2 in. (260 cm) Weight (With Female Hitch) 130 lb (59 kg) Lift 12 Volt DC Electric Ram Linear Actuator, Operated by ToggleSwitch Mounted o...

Component Identification 7 Implement Hitch Top View (Not Installed) Male Hitch Assembly NOTE: Control Identification shown in Operating Instructions section and in Illustrated Parts Manual. IMPLEMENT HITCH Male QuickHitch Latch Footrest Linchpin Mounting Tube Hitch Locking Lever Jam Nut Footrest Saf...

Component Identification 8 Dozer Blade Rear View and Right Side View (Not Installed) Skid Shoe Pin Skid Shoe Trip Spring Lockout Bracket Skid Shoe Bracket Trip Spring Lockout Pin Female Quick Hitch Hitch Box Angle Adjustment Pin Trip Spring Welded Blade DOZER BLADE

Component Identification 9 Rotary Broom Rear View and Right Side View (Not Installed) ROTARY BROOM Brush Rotary Broom Housing Ground Contact Knob Tension Spring Stopper Pin Pivot Bracket Parking Stand Broom Angle Adjustment Lever Plastic Wheel Female Hitch PTO Shaft

Component Identification 10 Two-Stage Snowblower Front View and Right Side View (Not Installed) TWO-STAGE SNOWBLOWER Hand Guard Gearbox Support Bracket Deflector Position Control Knob Chute Chute Rotation Handle Fan Frame Auger Auger Gearbox Deflector

Component Identification 12 Debris Blower Front View and Left Side View (Not Installed) DEBRIS BLOWER Parking Stand Female Quick Hitch PTO Drive Shaft Pivot Wheel Belt Guard Blower Motor Housing Chute Rotation Handle Linchpin

Component Identification 13 Chute Rotation Handle Belt Guard Parking Stand Pins Driveline Guard PTO Drive Shaft Female Quick Hitch Parking Stand Rotation Pinions Deflector Position Control Knob Debris Blower Rear View and Right Side View (Not Installed)

Safety Instructions 14 Pay particular attention to any information labeledDANGER, WARNING, CAUTION, IMPORTANT,and NOTE in this manual. When you see the Safety Alert Symbol ( ), read, understand, and follow the instructions. Fail-ure to comply with safety instructions may result inpersonal injury. Th...

Safety Instructions 15 7. Do not wear loose fitting clothing that could get caught in moving parts. Always wear ade-quate protective clothing including long pants.Wearing safety glasses, safety shoes, and ahelmet is advisable and required by some localordinances and insurance regulations. 8. Prolong...

Safety Instructions 16 12. Disengage the PTO clutch when transporting the machine. 13. Do not operate across the face of slopes. Use extreme caution when changing direction onslopes. Do not attempt to clear steep slopes. 14. Never adjust gauge wheels or skid shoes with the engine running. Before adj...

Assembly Instructions 19 SETUP INSTRUCTIONS Walker Implements are shipped partially assem-bled. After uncrating the implement adaptor and/orimplement(s), initial setup is required. NOTE: During the process of unpacking, any dam-aged or missing parts should be noted and reportedto the delivering carr...

Assembly Instructions 20 Implement Hitch Wiring 1. Drill five (5) 13/64 in. (5 mm) diameter holes inthe tractor, two in the FSC lever and three in thebody, as shown in the illustration. Drill Holes for Implement Hitch Wiring 2. Attach the toggle switch mounting bracket onthe FSC lever using two (2) ...

Assembly Instructions 21 6. Complete the wiring by connecting the wiringharness ends to the toggle switch and to the ac-tuator motor of the implement hitch. Complete Implement Hitch Wiring 7. Move the implement lift switch backward toraise the implement hitch to the UP position. 8. Move the implemen...

Assembly Instructions 22 Implement Hitch Wiring Diagram

Assembly Instructions 23 DOZER BLADE Dozer Blade Assembly 1. Insert the female quick hitch into the hitch boxon the blade attachment. 2. Align the single hole at the end of the femalequick hitch with the single hole in the hitch boxand insert the pivot pin through both holes. Se-cure the pivot pin o...

Assembly Instructions 25 Prepare Rotary Broom for Installation 3. Attach the female broom driveline half (withquick connect yoke) over the male broom driv-eline half. Set the driveline on its support. NOTE: Driveline sliding surfaces must begreased. Assemble Rotary Broom Driveline 4. Insert the male...

Assembly Instructions 26 6. Remove the hairpin from the welded sleeve onthe right hand side of the broom mountingbracket. Carefully pull out the stopper pin to itsmost extended position and lock in place withthe hairpin. Lock Stopper Pin in Place NOTE: The pin in the innermost position is usedto pre...

Assembly Instructions 27 1. Remove the pin and hairpin from each gaugewheel. Select the required number of spacersleeves to remain on the bottom portion of thegauge wheels. Refer to ADJUSTMENTS ofRotary Broom Gauge Wheels in Maintenance Instructions. 2. Remove the parking stands and replace themwith...

Assembly Instructions 28 5. Insert the 1-11/16 in. (43 mm) plastic bushing in-to the bushing support and place this over theshaft on the rotation worm. 6. Install the rotation worm assembly through thetube weldment with the attaching plate of thesupport on the underside of the chute base lip. Instal...

Assembly Instructions 29 Attach Drive Shaft Yoke to Reduction Shaft 4. Install one 1/4 x 7-1/2 in. bolt through the upperset of holes in the reduction box and secureloosely with a lock washer and nut. Install Bolt in Reduction Box 5. Hook the reduction box cover over the bolt andsecure the cover wit...

Assembly Instructions 30 Attach Snowblower to Implement Hitch 9. Attach the driveline quick lock coupler to thetractor PTO. Connect Driveline Coupler to Tractor PTO 10. Attach the parallel bar to the female hitch and the implement adaptor using the two clevisesand spring clips. Attach Parallel Bar t...

Assembly Instructions 32 9. For stability of the tractor when transporting withthe debris blower in raised position, approxi-mately 80 lb (36 kg) of counterweight should beinstalled on the tail of the tractor. Optional tailweights for the various tractor models are avail-able from your Walker dealer...

Assembly Instructions 33 CHECK BROOM ANGLE ADJUSTMENT Refer to Angle Adjustment Lever in Operating In- structions. CHECK DRIVE CHAIN Refer to LUBRICATION for Rotary Broom DriveChain in Maintenance Instructions . Refer to ADJUSTMENTS of Rotary Broom DriveChain Tension in Maintenance Instructions . CH...

Operating Instructions 39 Engaging the Snowblower 1. Make sure that the snowblower is clear of snowand/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 ifnecessary, add SAE 90 E.P. (Extreme Pres-sure) oil. Make ...

Operating Instructions 40 • When operating on a slope, reduce speed and use caution to start, stop, and maneuver. Avoidsharp turns or sudden changes in direction. • When blowing through deep snow drifts, let the snowblower work its way through the drifts. For bestresults, raise the snowblower and re...

Operating Instructions 42 Engaging the Debris Blower 1. Set the engine throttle at about 1/3 speed. DONOT attempt to engage the PTO clutch athigh engine speeds. This will drastically short-en drive belt life. Use only moderate enginespeed when engaging the PTO clutch. 2. Pull the PTO clutch lever SL...

Maintenance Instructions 43 MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - IMPLEMENTS Model Service Item Daily 25 Hours Yearly Reference Page All Models: Check Tire Chains (Optional) X 32 Check Gauge Wheels or Skid Shoes X 32 Check Tractor Tailweight X 32 Lubricate Grease Fittings and ...

Maintenance Instructions LUBRICATION 44 LUBRICATION Proper lubrication is an important maintenance pro-cedure. It reduces wear and makes the machinequieter and easier to operate. Rotary Broom Gearbox The gearbox is permanently lubricated (oil filled) andsealed requiring no scheduled lubrication. How...

Maintenance Instructions LUBRICATION 45 Two-Stage Snowblower Gearbox The gearbox is permanently lubricated (oil filled) andsealed requiring no scheduled lubrication. However,the gearbox oil seal(s) should be checked every 25hours for indication of an oil leak. If an oil leak isnoted, replace the oil...

Maintenance Instructions LUBRICATION 46 Ident Lubrication No. No. Location Type Places Ident Lubrication No. No. Location Type Places Implement Hitch 1 PTO Shield Hinge Oil 1 2 Hitch Locking Lever Pivot Oil 1 3 Mounting Tube Sockets Grease 2 4 Hitch Lift Crank Grease 1 5 Hitch Pivot Shaft Oil 1 6 Qu...

Maintenance Instructions LUBRICATION 47 Implement Hitch Lubrication Points

Maintenance Instructions LUBRICATION 49 Dozer Blade Lubrication Points

Maintenance Instructions LUBRICATION 51 Rotary Broom Lubrication Points

Maintenance Instructions LUBRICATION 53 Two-Stage Snowblower Lubrication Points

Maintenance Instructions LUBRICATION 55 Debris Blower Lubrication Points

Maintenance Instructions REPLACING/REPAIRING 56 REPLACING/REPAIRING Dozer Blade Cutting Edge NOTE: The cutting edge of the dozer blade is re-versible and needs to be replaced only when boththe top and bottom edges have worn. Replace the dozer blade cutting edge as follows: 1. Remove the six (6) 5/16...

Maintenance Instructions REPLACING/REPAIRING 57 6. Loosen the two sprocket set screws and pushsprocket towards the brush. Loosen Chain Idler and Set Screws 7. Remove the three bolts on the bearing flangeson each side of the broom and loosen the bear-ing set screws. Push the bearings and flangestowar...

Maintenance Instructions REPLACING/REPAIRING 58 2. Loosen the bearing flange mounting nuts andbolts. Position the chain tension block so thatthe chain has as much slack as possible. Tight-en the bearing flange mounting nuts and boltsslightly to hold the bearing flange in this posi-tion. Remove Chain...

Maintenance Instructions REPLACING/REPAIRING 59 6. Align the slot in the new sprocket with thesquare key and slide the sprocket onto the driveshaft. Make sure the key is in place betweenthe drive shaft and sprocket. Remove and Replace Sprocket Align Sprockets 7. Position the sprocket on the drive sh...

Maintenance Instructions REPLACING/REPAIRING 60 Snowblower Cutting Edge Replacement Two-Stage Snowblower Gearbox Remove and replace the gearbox as follows: 1. Stop the tractor engine, set the parking brake,and remove the ignition key. Replace Snowblower Gearbox 2. Remove the three (3) 5/16 nuts and ...

Maintenance Instructions REPLACING/REPAIRING 61 Replace Reduction Chain 6. Adjust the chain tension. Refer to ADJUST-MENTS of Two-Stage Snowblower Reduc-tion Chain Tension in this section. 7. Reinstall the reduction box cover by reversingthe removal procedures. Two-Stage Snowblower Reduction Sprocke...

Maintenance Instructions 62 REPLACING/REPAIRING/ ADJUSTMENTS 2. Loosen the three (3) nuts and three (3) bolts onlower pulley bearing support and the adjust-ment nut on the lower end of each (2) eyeboltsto release belt tension. 3. Loosen the two (2) set screws securing the up-per pulley bearing to th...

63 Maintenance Instructions ADJUSTMENTS Skid Shoe Height Adjustment Rotary Broom Brush Leveling IMPORTANT: The proper level adjustment ofthe broom is essential for efficient operationand life of the bristles. The broom should regu-larly be adjusted to prevent uneven brushwear. 1. Extend the parking ...

64 Maintenance Instructions ADJUSTMENTS Rotary Broom Drive Chain Tension The drive chain should have 1/4 to 1/2 in. (6 to13 mm) of slack at midspan. Remove the chainguard cover to check slack. Adjust the drive chainas follows: 1. Loosen the chain idler nut. Loosen Chain Idler Nut 2. Position the cha...

65 Maintenance Instructions ADJUSTMENTS Reduction Chain Tension Adjustment Debris Blower Front Gauge Wheel Adjust the gauge wheel height according to surfacecondition. IMPORTANT: The air blast nozzle must clearthe ground at all times. 1. Remove the linchpin from the wheel pivot shaft. 2. Adjust whee...

66 Maintenance Instructions ADJUSTMENTS Drive Belt Tension Adjustment Debris Blower Rotation Pinions The two (2) rotation pinions should slightly contacteach other without any resistance. 1. Loosen the set screw of each stop ring on therotation handle. 2. Keeping the two (2) pinions slightly in cont...

Maintenance Instructions TORQUE SPECIFICATIONS 67 TORQUE SPECIFICATIONS

Removal and Storage Instructions 68 REMOVAL Removing Attachments from Implement Hitch Dozer Blade 1. Park the tractor on a level surface and lower thedozer blade. 2. Remove the linchpin from the quick hitch latchand place the hitch locking lever in the UN-LOCKED position. 3. Start the tractor engine...

Removal and Storage Instructions 69 Detach Rotary Broom from Implement Hitch Two-Stage Snowblower 1. Park the tractor on a level surface and lower thesnowblower. 2. Remove the hairpin from the parallel bar at theadaptor end, and remove the parallel bar fromthe implement adaptor. 3. Disconnect the dr...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 72 IMPLEMENT HITCH ASSEMBLY Implement Hitch 1 6627 PTO Shield 1 2 I392 Safety Chain Assembly 1 I015 Chain 1 O/L 5/16 Linchpin 1 O/L 5/32 x 1 Cotter Pin...

Effective Date 06-01-01 Use only genuine Walker ® replacement parts. 7 3 IMPLEMENT HITCH ASSEMBLY

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 74 IMPLEMENT HITCH ELECTRICAL COMPONENTS Implement Hitch Electrical Components 1 6623-1 Switch Boot (Fits P/N 6623) 1 2 6628 Switch Mount Bracket 1 3 6...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 76 DOZER BLADE ASSEMBLY Dozer Blade Assembly 1 I061 Spring (1-7/8 x 9) 1 2 I064 Pivot Pin 1 3 I060 1/4 x 1 Roll Pin 2 4 I065 Adjustment Pin 1 5 I063 Fe...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 78 ROTARY BROOM ASSEMBLY Rotary Broom Assembly 1 I385 Stand Support Bracket 2 2 I366 Parking Stand 2 3 NS Housing (RAD 661579) 1 4 663827 Clevis 1 5 O/...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 80 ROTARY BROOM DRIVE COMPONENTS Gearbox Assembly 1 NS Dipstick Plug (RAD 661741) 1 2 O/L M8 x 45 Bolt 8 3 NS Casing (RAD 661740) 1 4 NS Oil Seal (RAD ...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 82 SNOWBLOWER HOUSING COMPONENTS Chute Rotation Assembly 1 NS Chute, Base and Knobs (with Decals) 1 (RAD 661168) 2 I396 Decal, Keep Hands Out 1 3 I172 ...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 84 SNOWBLOWER DRIVE COMPONENTS Gearbox Assembly 1 I193 Double Lip Seal 2 2 NS Breather, 3/8 NPT & O-Ring (Comer) 1 (RAD 661185) NS Pressure Plug, 1...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 86 DEBRIS BLOWER COMPONENTS Debris Blower Components 1 I402 Impeller Housing 1 2 NS Impeller (RAD 662644) 1 3 NS 1-14 Castel Nut (RAD 654988) 1 4 O/L 3...

ITEM PART DESCRIPTION NO. NO. NO. REQ’D ITEM PART DESCRIPTION NO. NO. NO. REQ’D Use only genuine Walker ® replacement parts. Effective Date 06-01-01 88 DEBRIS BLOWER MANUAL ROTATION COMPONENTS Debris Blower Manual Rotation Components 1 7860 Handle Grip 1 2 NS Rotation Handle (RAD 663509) 1 3 5830 Gr...

Use only genuine Walker ® replacement parts. Effective Date 06-01-01 90 KEY TO ABBREVIATIONS USED IN ILLUSTRATED PARTS MANUAL º (Dimension) .................................................................................................................... Degrees (Angle)" (Dimension) .............