Walker A54 Operator's Manual

Deck height adjuster

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A54 Deck Height Adjuster 48"/52"

Operator's Manual

Assembly, Attaching, Removing, Operation, and Maintenance

Compatible with DC48-2, DM48-2, DC48R-2, DC48RV-2,

DC52R-2, DC52RV-2, and DM52-2

Please Read and Save These Instructions

For Safety, Read All Assembly and Operation Instructions

Effective Date: 07/14/2024

Prior to Operating Attachment

P/N: 7211-20

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Page 1 A54 Deck Height Adjuster 48”/52” Operator’s Manual Assembly, Attaching, Removing, Operation, and Maintenance Compatible with DC48-2, DM48-2, DC48R-2, DC48RV-2, DC52R-2, DC52RV-2, and DM52-2 Please Read and Save These Instructions For Safety, Read All Assembly and Operation Instructions Effective Date: 07/14/2024...
Page 2 Foreword Thank you. . .for purchasing a Walker A54 Deck Height Adjuster for 48” and 54” Decks. Every effort has been made to provide you with the most reliable machine on the market, and we are sure you will be among our many satisfied customers.
Page 3: Table Of Contents
To Release From Transport Position: ________ 11 Lockout Arm _________________________________ 11 For Temporary Height Adjustments _________ 11 Lubrication _____________________ 12 Parts Lists and Diagrams _________ 13 Parts List (A54) ______________________________ 13 Parts Diagram (A54) __________________________ 14 Parts Diagram (A54) __________________________ 15 Limited Warranty ________________ 16...
Page 4: General Information
GLOSSARY UNIT DESCRIPTION There are many terms that are either unique to this The A54 Deck Height Adjuster is a pedal-operated equipment or that are used as acronyms. The adjuster that can be installed on the following decks: following terms and their definitions will help while...
Page 5: Component Identification
Component Identification Component Identification Height Adjustment Arm Gas Spring (Not Shown) RH Lift Arm Lift Rod Weldment Height Plate Deck Lift Pedal RH Control Rod Lift Saddle A54 Deck Height Adjuster...
Page 6: Safety Instructions
If you have any questions concerning setup, opera- personal injury. tion, maintenance, or safety, please contact your authorized Walker Mower dealer or call Walker Man- The seriousness or degree of importance of each ufacturing Company at (970) 221-5614. type of information is defined as follows:...
Page 7: Assembly And Installation Instructions
Transfer the Lift Links from the stan- This section covers the assembly and installation of dard Lift Saddles before installing them. the A54 Deck Height Adjuster. Remove the deck from the tractor. F717 Remove the carrier frame from deck housing...
Page 8 Assembly and Installation Install the LH Inner Pivot Plate (#10, P/N 7211- 10. Install finger tight the Height Plate (#9, P/N 11) and LH Pivot Plate (#11, P/N 7211-7) using 7211-42) to the pivot plates using two (2) 1/4- four (4) 1/4-20 x 1-3/4 hex bolts (F236) and 20 x 2-1/4 hex bolts (F271) and 1/4-20 flange 1/4-20 flange top lock nuts (F569).
Page 9 Assembly and Installation 13. Install the Lift Rod Weldment (#1, P/N 7211-1) 15. Attach the Foot Pedal Link (#32) to the Foot along the front of the carrier frame using two (2) Pedal Arm (#33) using 5/16-18 x 1-1/8 hex bolt Lift Rod Brackets (#21, P/N 7210-10) with a (F645), 1.250 x .314 x .125 washer (F552), 5/8 5/16-18 x 3/4 hex bolt (F034) in the top hole...
Page 10 Assembly and Installation F603 Washer On Outside Install LH Control Rod 23. Adjust the length of the LH Control Rod so the Front Rear rear F706 mount bolt goes through the front of Lift Links Secured (LH Shown) the slot on the LH Lift Arm. Rotate the control 19.
Page 11 Assembly and Installation 26. Mount the 10 mm Ball Stud, 5/16-18 x 3/4 (#18, P/N 5155-13) on the LH Inner Pivot Plate (#10) * Shorten the rods to lift the rear. with three (3) 5/16 SAE washers (F049) and * Lengthen the rods to lower the rear. secure with a 5/16-18 flange top lock nut (F551).
Page 12: Operating Instructions
Wire Lock Pin to the location shown on the Height Adjustment Decal. The A54 Deck Height Adjuster is designed to be set between 1.5” to 4” at 1/4” intervals on tractors Push down on the Deck Lift Pedal and lift up with standard size drive tires.
Page 13: Transport Position
TRANSPORT POSITION LOCKOUT ARM The top cutting height (4”) is a locking position that The A54 is equipped with a Lockout Arm that keeps is called the Transport position. This position is the Deck Height Adjuster from locking in the Trans- recommended for increased ease when driving the port position.
Page 14: Lubrication
Maintenance Lubrication Ident Lubrication Location Type Places Deck Lift Pivot Grease* Grease every twenty-five (25) hours. A54 Lubrication Points...
Page 15: Parts Lists And Diagrams
Parts Lists and Diagrams PARTS LIST (A54) ITEM PART DESCRIPTION ITEM PART DESCRIPTION REQ’D REQ’D 48” & 52” Deck Height Adjuster Kit Fasteners F024 5/16-24 Jam Nut 7211-1 Lift Rod Weldment / DHA 48” F031 1/4-20 x 5/8 Hex Bolt...
Page 16: Parts Diagram (A54)
PARTS DIAGRAM (A54) F551 F645 F569 F288 F049 F551 F350 F569 F705 F236 F603 F706 F236 F717 F024 F551 F717 F551 F034 F034 F350 F093 F024 F288 F350 F705 F705 F603 F706 F569** F031 F569 10 (REF) F569 F717 F569...
Page 17 PARTS DIAGRAM (A54) F706 F603 F288 F024 F705 F350 F706 F603 F050 F034 F551 F179 F236 F569 F024 F645 F050 F271 F350 F288 F551 F569 F236 F208 F552 F715 F038 F705 F551 F551 F716 F551 F645 F552 F350 F034 F715...
Page 18 MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...
Page 19: Limited Warranty
(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 20 WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 FORM NO. 071824 PRINTED IN USA www.walker.com ©2024 WALKER MFG. CO...