Walker A21 Hi-Dump Operator'S Manual Download

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Safety, Assembly, Operation, and Maintenance

A21 compatible with Models D/T (10.0 Catcher Box)

Please Read and Save These Instructions

For Safety, Read All Assembly and Operation Instructions
Prior to Operating Attachment

Beginning S/N: 2018-5524

P/N: 8404-11

A21 Hi-Dump

Kit

Operator’s Manual

Summary of Contents for A21 Hi-Dump

Page 1: ...21 compatible with Models D T 10 0 Catcher Box Please Read and Save These Instructions For Safety Read All Assembly and Operation Instructions Prior to Operating Attachment Beginning S N 2018 5524 P N...

Page 2: ...be read and understood to help prevent possible injury to the operator or others If anything in this manual is confusing or hard to understand please contact your local authorized dealer or call our s...

Page 3: ...TION DECALS 9 Assembly Instructions 10 INSTALLING A21 HI DUMP ON TRACTOR 10 Operating Instructions 17 HI DUMP OPERATION 17 Maintenance Instructions 19 CHECKING OIL LEVEL 19 LUBRICATION 19 Grease Fitti...

Page 4: ...NG SYSTEM GHS collects mowed material and deposits it in the catcher HI DUMP is a power lifting and dumping mech anism for the GHS catcher box controlled from the operator s seat LEFT HAND LH refers t...

Page 5: ...er Manufacturing Company 5925 E Harmony Road Fort Collins CO 80528 1 970 221 5614 www walker com UNIT DESCRIPTION With the optional Hi Dump kit installed the opera tor raises and dumps the GHS catcher...

Page 6: ...ividual Toggle Switch with Solenoid Activated Valves Operating Hydraulic Cylinders Weight Installed lb kg 150 68 Height Increase Tractor in cm 3 8 Hydraulic Oil Chevron Rykon Premium Oil ISO 68 or Equ...

Page 7: ...Manufacturing must take full responsibility for safety The Walker Rider Lawnmower has been designed with many safety features to protect the operator from personal harm or injury However it is neces...

Page 8: ...ward Speed Control FSC out of NEUTRAL PARK 2 PTO Clutch ENGAGED or 3 Parking Brake DISENGAGED NOTE There is a 1 2 second time delay func tion on the seat switch to avoid engine power interruption when...

Page 9: ...ck switch normally prevents starting of the tractor if these controls are in the OPERATING position 7 Do not operate machine if the operator pres ence safety switch system is not working Verify proper...

Page 10: ...e engine off before leaving the seat b LOOK to make sure blade drive shaft and blower drive pulley movement has stopped before trying to unclog the system c Disconnect the spark plug wires d Never pla...

Page 11: ...ry replacement parts Substitute parts may result in product malfunc tion and possible injury to the operator and or others 11 Use care when charging the battery or per forming maintenance on the batte...

Page 12: ...sted below and in the Parts Manual Operation Decal Hi Dump Operation Location Switch Cover Part Number 8400 9 Safety Decal Auxiliary Power Terminals Location Auxiliary Power Terminal Plate Part Number...

Page 13: ...mounted on the back of the front body that the catcher contacts when lowered Install new bumper P N 7847 on the right side as shown in Install Body Bumper photo Body Bumper P N 7847 Install Body Bumpe...

Page 14: ...e spacer P N 8400 77 is not used on the MT30i PTO Blade Clutch Mount Spacer P N 8400 77 Mounting Bolt Hi Dump Frame Upright Install RH Hi Dump Frame 15 Route the harness under the chassis and back up...

Page 15: ...are removed earlier Clamp LH Front Hi Dump Mount NOTE If the Hi Dump mounting hole is not present in the chassis it will be necessary to drill a 5 16 in hole using the Hi Dump mount as a guide Install...

Page 16: ...rent drill the smaller hole to 7 16 in Tapered Punch Used to Align Mount Hole Bumper Upright Support Align Bumper Upright Supports to Chassis 25 Tighten all bolts and nuts 26 Reinstall the precleaner...

Page 17: ...r Box View from Bottom of Catcher Box Front of Catcher Box Drilling Dimensions for Power Dump Cables 33 Remove the cotter pins on both ends of the torsion bar inside catcher box Insert spring hook end...

Page 18: ...n using the DUMP switch Check the tension of both cables The tension should be equal Adjust accordingly with the ball joints Tighten the jam nuts 39 Drill holes in both sides of the catcher box as sho...

Page 19: ...before the rear starts to rise as shown in Check Lift Operation photo If this does not occur the control rods will need to be adjusted Front Pivot Raises 1 in Before Rear Raises Hi Dump Frame Front Pi...

Page 20: ...th the Hi Dump jiggle the steering levers and make the tractor bounce a little to unstick the grass and make it slide out of the catcher NOTE With the Hi Dump mechanism in the nor mal operating positi...

Page 21: ...18 Operating Instructions Safety Lockout Arm Stowed Safety Lockout Arm Disengaged Position...

Page 22: ...When fill ing add about 22 oz operate the system and allow oil to flow throughout the system Then continue filling the reservoir with the additional 10 oz LUBRICATION WARNING DO NOT attempt to lubric...

Page 23: ...nstructions Ident Lubrication No No Location Type Places 1 Hi Dump Catcher Frame Grease 2 2 LH RH Rear Pivots Grease 2 3 Catcher PivotArm Grease 1 4 Hydraulic Power Unit Oil 1 A21 Lubrication Points D...

Page 24: ...s Control Lift Rod Check the lift operation of the Hi Dump The front pivot should lift approximately 1 in 2 5 cm before the rear starts to rise as shown in Check Lift Operation photo If this does not...

Page 25: ...22 This page left intentionally blank...

Page 26: ...er Warning 1 43 8600 23 Decal Danger Body Latch 1 44 8400 19 Switch Mount 1 45 8400 9 Decal Hi Dump Operation 1 46 8400 14 Switch Cover Includes Item 45 1 47 8401 13 Bumper Hi Dump Mount 1 Includes It...

Page 27: ...009 F039 F399 F208 21 35 15 16 58 56 39 38 30 30 29 31 32 33 25 16 17 16 15 REUSE REUSE 14 15 21 27 27 21 28 22 23 25 12 24 34 26 51 45 57 F002 F002 41 43 11 F003 F287 3 7 10 10 F069 F049 18 40 F009 R...

Page 28: ...7 1 2 A UP 15 8403 20 Hydraulic Hose 1 Valve to Pump 17 1 2 B DN 16 5975 1 Cable Tie 18 x 3 3 4 11 17 8403 19 Hydraulic Power Unit 1 18 8440 7 Battery Relay Harness 1 19 5832 Cable Clamp 1 2 1 20 8401...

Page 29: ...1 1 1 28 2 F025 4 3 4 F025 5 F026 F002 F002 F026 32 32 23 22 21 20 18 BLK RED BLK 4 11 16 26 16 16 16 16 13 10 4 4 12 12 TRACTOR CHASSIS JACKSHAFT ASSEMBLY FOR REFERENCE 9 4 DETAILC RED YEL RED YEL BL...

Page 30: ...________________________ ______________________________________________________________________________________________________________ ________________________________________________________________...

Page 31: ...performed Warranty service can be arranged by contacting the dealer where you purchased the machine or by contacting Walker Manufacturing Company 5925 East Harmony Road Ft Collins CO 80528 Proof of t...

Page 32: ...WALKERMFG CO 5925E HARMONYROAD FORTCOLLINS CO80528 970 221 5614 FORM NO 111418 PRINTED IN USA www walker com 2018 WALKER MFG CO...

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