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A43 Dozer Blade Attachment
Operator's Manual
Assembly, Attaching, Removing, Operation, and Maintenance
Compatible with Models: MB, MC, MD, MS, MT
Please Read and Save These Instructions
For Safety, Read All Assembly and Operation Instructions
Beginning S/N: 2023-2056
Prior to Operating Attachment
P/N: 6625-17
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Summary of Contents for Walker A43
- Page 1 A43 Dozer Blade Attachment Operator’s Manual Assembly, Attaching, Removing, Operation, and Maintenance Compatible with Models: MB, MC, MD, MS, MT Please Read and Save These Instructions For Safety, Read All Assembly and Operation Instructions Beginning S/N: 2023-2056 Prior to Operating Attachment...
- Page 2 Foreword Thank you. . .for purchasing a Walker A43 Dozer Blade Attachment. Every effort has been made to provide you with the most reliable mower on the market, and we are sure you will be among our many satisfied customers. If for any reason this product does not perform to your expectations, please contact your local dealer.
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Page 3: Table Of Contents
Parts Lists and Diagrams A43 Parts List ....... 20 General Information A43 Parts Diagram . -
Page 4: General Information
Walker Mower Dealer. There are several general practices to be aware of in the area of safety. Most accidents associated with the operation or maintenance of a Walker Tractor are Dozer Blade Serial No. -
Page 5: Servicing Of The Dozer Blade
1-970-221-5614 www.walker.com UNIT DESCRIPTION The A43 Dozer Blade is a 48” blade that can be used for snow removal or as light utility tool for moving dirt, mulch, or other debris. The design includes spring-assisted raise and lower lever, a 5-way foot-engaged angle adjustment, trip-over protection, +/-5°... -
Page 6: Specifications
Specifications Specifications MODEL A43 DOZER BLADE Height of handle installed in. (cm) 33 (84) Height of blade in. (cm) 17.5 (44.5) Width in. (cm) 48 (122) Length in. (cm) 38 (96.5) Overall Length Installed on Tractor in. (cm)* 87 (221) Weight lb. (kg) -
Page 7: Component Identification
Component Identification Component Identification Foot Trigger (Blade Angle) Lift Handle Blade Mount Extension Spring (Trip-Over Spring) RH Footrest Lift Handle Assist Trip-Over Spring Lock Replaceable Cutting Edge Angle Stop Articulation Bolt (LH) Joint Dozer Blade LH Side View (Not Installed) -
Page 8: Safety Instructions
If you have any questions concerning setup, opera- tion, maintenance, or safety, please contact your An IMMEDIATE hazard that WILL result in se- authorized Walker Mower dealer or call Walker Man- vere personal injury or DEATH, if warning is ufacturing Company at (970) 221-5614. -
Page 9: Operating
Safety Instructions Prolonged exposure to loud noise can cause WARNING impairment or loss of hearing. Operator hear- ing protection is recommended. Wear a suit- This product can expose you to chemicals able hearing protective device, such as earmuffs including Di-(2-ethylhexyl) phthalate which or earplugs. - Page 10 Safety Instructions Release the steering levers and simultaneously DANGER (2) Move the FSC to the NEUTRAL-PARK position. When the machine is stopped or Do not operate tractor within 5 feet (1.5 me- moving slowly, engage the parking brake. ters) of an embankment or retaining wall NOTE: The emergency stop procedure is with drop off.
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Page 11: Maintenance
Safety Instructions 18. Using the trip-over lock is NOT recommended Never attempt to disconnect any safety devices when obstructions cannot be seen (e.g. under or defeat the purpose of these safety devices. snow cover). The rigid blade operation should Do not change the engine governor settings or only be used with low ground speed. -
Page 12: Assembly And Installation
Assembly and Installation Assembly and Installation Lay the dozer blade on a flat surface and re- move the pivot shaft from the back of the blade using a hammer and a punch. ASSEMBLING THE BLADE Assemble the articulating joint by securing male hitch adapter (P/N 6626-8) to the tongue weldment (P/N 6627-12) with the pivot bearing plate (P/N 6625-6) in the middle. - Page 13 Assembly and Installation After ensuring proper alignment of the roll pin Place the washer (P/N F481) over the eye bolt holes, use a hammer and a punch to tap the and begin threading the ESNA nut (P/N F020) roll pin into place. onto the eye bolt.
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Page 14: Installing The Dozer Blade
Assembly and Installation 10. Align the clevis over the locking arm and insert applicable strap hole location illustration for the clevis pin. With the clevis pin in place, details on locating and drilling these holes. check that the lift release push button stands 3/8”... - Page 15 Assembly and Installation F013 Deck Hinge NOTE: THE MC23i SUPPORT Stop STRAP IS YELLOW. F151 F013 P/N 6621-19 Deck Hinge Stop in Notch (MC, MD, MT only) F040 Install a hitch pin through the hole on the end Install Straps on MC23i Tractors of each support arm to lock the blade in place. For MC(19/19i), MD, MT or MS (pre-2014) Two hitch pins are included in the Owner’s tractors, the body hinge bolt will need to be...
- Page 16 Confirm that the foot trigger Never move or operate the tractor with the locking mechanism engages freely in the angle A43 Dozer Blade installed if the mounting adjust slot while the angle stop bolt is contact- straps are not installed.
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Page 17: Removing The Dozer Blade
Assembly and Installation REMOVING THE DOZER BLADE On a flat surface, lower the dozer blade so it is resting on the ground. Block up the blade approximately 7” (18 cm), and remove the top of the support straps from the tractor chassis. For MC(19/19i), MD, MT or MS (pre-2014) tractors, tighten the 3/8-16 ESNA nut (P/N F014) to secure body hinge bolt and then back... -
Page 18: Operating Instructions
Operating Instructions Operating Instructions Pull Back to Raise the Blade The A43 Dozer Blade has a variety of different or Push and features that help make it adaptable to different Hold the Button conditions. These features include: lifting and low-... -
Page 19: Blade Angle
Operating Instructions BLADE ANGLE There are five angle positions to which the blade can be adjusted: ● Straight forward ● Right/Left 15 degrees ● Right/Left 30 degrees Positions Push Blade to Angle Foot Trigger Angle Positions To adjust the blade angle, use one foot to hold down the foot trigger and use the other foot (or the momentum of the blade as you turn the tractor) to push the blade into the desired position. -
Page 20: Trip-Over Extension Spring
Operating Instructions TRIP-OVER EXTENSION SPRING photo. Be sure the trip lock seats flush on the stop rod as shown in the Trip-Over Lock Seated on The dozer blade is designed to “trip” forward when Stop Rod photo. This procedure locks the blade in striking large rocks, tree stumps, etc. -
Page 21: Blade Articulation
Operating Instructions BLADE ARTICULATION Then lower the blade, and it should easily self level to make full contact with the ground as it The dozer blade is designed with +/- 5 degrees of is lowered. lateral articulation to allow the blade to follow the contour of the ground. -
Page 22: Maintenance
Maintenance Maintenance LUBRICATION Lubricate the following oil points every 25 hours of CUTTING EDGE (WEAR STRIP) operation: Inspect cutting edge often (approximately every 2 Blade Angle Pivot (Grease) hours of operation). Upon reaching the maximum allowable wear (approximately 1/8” remaining) either Foot Trigger Pivot (SAE 10 Oil) lower cutting edge to the second row of carriage bolt Lift Bar Pivot (x2) (Grease) -
Page 23: Parts Lists And Diagrams
Parts Lists and Diagrams Parts Lists and Diagrams A43 PARTS LIST ITEM PART DESCRIPTION ITEM PART DESCRIPTION REQ’D REQ’D Dozer Blade Fasteners F003 1/4-28 Hex Nut 6622-19 Pivot Shaft (8”) F009 5/16-18 Whiz Locknut 6627-12 Tongue Weldment F014 3/8-16 ESNA Nut... -
Page 24: A43 Parts Diagram
A43 PARTS DIAGRAM F003 ASSEMBLED TOP VIEW (REF) F009 F481 F700 F003 F069 F700 F481 F551 F275 F049 F020 F676 F009 F009 F009 F111 F436 F055 F009 F678 F016 F055 F680 F020 F645 F439 F170 F521 F481 F170 F645 F336 F336... -
Page 25: Chassis Support Strap Mc (19/19I), Md, Mt & Ms Parts List And Diagram
3/8-16 Whiz Locknut 6621-62 Chassis Support Strap / MC, MD, MT F014 3/8-16 ESNA Nut F040 3/8-16 x 1-1/2 Hex Bolt F041 3/8-16 x 1-3/4 Hex Bolt F051 3/8 SAE Washer Beginning S/N 2023-2056 Use only genuine Walker replacement parts. ®... -
Page 26: Chassis Support Strap Mb & Ms Parts List And Diagram
Chassis Support Strap / MB, MS (2014 and on) Fasteners F013 3/8-16 Whiz Locknut 6621-21 Chassis Support Strap / MB, MS F040 3/8-16 x 1-1/2 Hex Bolt F151 3/8-16 x 7/8 Hex Bolt Beginning S/N 2023-2056 Use only genuine Walker replacement parts. ®... -
Page 27: Chassis Support Strap Mc23I Parts List And Diagram
REQ’D REQ’D Chassis Support Strap / MC23i Fasteners F013 3/8-16 Whiz Locknut 6621-19 Chassis Support Strap / MC23i F040 3/8-16 x 1-1/2 Hex Bolt F151 3/8-16 x 7/8 Hex Bolt Beginning S/N 2023-2056 Use only genuine Walker replacement parts. ®... - Page 28 MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...
- Page 29 MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...
- Page 30 MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...
- Page 31 (90) days. At Walker’s request, customer will make the defective part available for inspection by Walker and/or return the defective part to Walker, transportation charges prepaid.
- Page 32 WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 FORM NO. 091323 PRINTED IN USA www.walker.com ©2023 WALKER MFG. CO...
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