Walker mower operator’s manual - Safety, Assembly, Operating, and Maintenance Instructions - D21d - P/N 7000-22

Oct 23, 2026

Uploaded by Fans

Operator’s manual for a Walker mower model D21d equipped with a Kubota D722 diesel engine. Provides safety requirements and instructions covering shields and guards, correct operation, assembly setup steps, tire and battery service/charging, mower deck assembly, leveling procedures, and preoperating checklists. Includes detailed operating guidance for controls, throttle, forward speed control, steering levers, PTO blade clutch, parking brake, seat, and instrument panel items, along with maintenance and servicing of engine and drivetrain components.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages100

Reading Time4 h 12 min

AccessFree to download

General Information

Safety Instructions

Before Operating

Operating

Maintenance

Safety, Control, and Instruction Decals

Assembly Instructions

Setup Instructions

Operating Instructions

| Operator’s Manual
Safety, Assembly, Operating, and Maintenance Instructions | | | --- | --- | | Please Read and Save These Instructions For Safety, Read All Safety and Operation Instructions Prior to Operating Machine | Beginning S/N: 170133 P/N 7000-22 | Foreword Thank you. . .for purchasing a Walker mower. 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. Every customer is important to us. Your satisfaction is our goal. [Please. . .](Please. . .read)[read](Please. . .read) this manual thoroughly! This manual is to be used in conjunction with the engine manufacturer’s manual for the specific engine on the mower model you have purchased. Before you operate your new mower, please read this entire manual. Some of the information is crucial for proper operation and maintenance of this mower- it will help protect your investment and ensure that the mower performs to your satisfaction. Some of the information is important to your safety and must 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 service department, at (970) 221-5614, for clarification before operating or servicing this mower. This manual covers Model D21d with the Kubota D722 (20 .9 HP) diesel engine (liquid cooled) . All shields and guards must be in place for the proper and safe operation of this machine. Where they are shown removed in this manual, it is for illustration purposes only. Do not operate this machine unless all shields and guards are in place. Specifications given are based on the latest information available at the time this manual was produced for a tractor with standard equipment. Optional equipment is available and may affect the standard specifications listed. [Walker Mfg. Co. is](Walker Mfg. Co. is) continually striving to improve the design and performance of its products. Wereserve the right to make changes in specifications and design without thereby incurring any obligation relative to previously manufactured products. Sincerely, WALKER MANUFACTURING COMPANY Bob Walker, Chairman D21d Table of Contents | General Information 1
Highlighted Information ......................................1
Glossary ...............................................................1
Identifying Number Locations............................1
Engine Serial Number Location .........................2
Servicing of Engine and Drivetrain Components .....................................................................2
Specifications ......................................................3
Component Identification ...................................7
Safety Instructions 11
Before Operating ...............................................11
Operating............................................................13
Maintenance.......................................................15
Safety, Control, and Instruction Decals...........16
Assembly Instructions 20
Setup Instructions .............................................20
Tire Installation (Tractor) ...........................................20
Battery Service..........................................................20
Battery Charging ................................................... 20
Battery Installation ................................................. 21
Mower Deck Assembly..............................................21
Deck Caster Wheels Installation ........................... 21
Deck Discharge Chute Installation ........................ 21
Deck Discharge Deflector Shield Installation .................................................. 22
PTO Shaft Guard Installation ...

FAQs

What manual should be used alongside this mower manual?

Use this manual together with the engine manufacturer’s manual for the specific engine installed on the mower model purchased.

Why must shields and guards be installed before operating?

Shields and guards must be in place for proper and safe operation; do not operate unless all shields and guards are installed.

What sections are included to prepare for operating the mower?

The table of contents includes Assembly Instructions, Setup Instructions, Preoperating Checklist, and Operating Instructions with control identification and operation details.

Oct 23, 2026

Uploaded by Fans