Walker MT, MTL, MC, MS, MW15 Detailed Instructions

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WALKER SERVICE MANUAL

Detailed Instructions for

Servicing Walker Mowers

Model MT, MTL, MTEFI and MTLEFI

Model MD Model MC

Model MS

Model MW15

Model MB

Decks

Implements

Please Read and Save These Instructions Effective Date: 07-01-06

For Safety, Read All Safety and Operation P/N 9000-30 Instructions Prior to Operating Machine

™

Foreword

Dear Walker Servicing Professional, This manual is provided as a resource for you to not only repair but also maintain Walker mowers,

decks and implements. Your service capability as a Walker dealer is valuable to the strength and vitality of our program—many customers base their purchases on the type of dealer ser vice they receive.

I would encourage you to use this man ua l in conj unction with th e en gine ser v ice m anu als you may have. I would also encourage you to “stay close” to the W alker Service Site (service.walkermfg.com), because we have found it to be the easiest way to keep our dealers up to date with current information and product changes. This manual is also indexed on the service site and can be useful for you in that manner as well. Please also know that this is a “live and working” document that will continue to be updated as the product changes and needed changes within the document are identified. Updates will be posted immediately on the service site and the printed document will be updated with each printing.

Whatever way you decide to source the information in this document, please und erstand that many of the procedures and adjustm ents in this b ook ar e critical to the optimal and safe performance of the mower . If anything in this manual is confusing or hard to understa nd, please call our service department, at (970) 221-5614, for clarification before repairing or servicing the mower.

This manual does not replace the owner’s manual included with each mower or the customer’s obligation to properly and safely operate any piece of Walker equipment.

Specifications given are based on the latest information available at the time this manual was produced.

Walker Manufacturing Company is continually striving to impr ove the design and performance of it s products. We reserve the r ight to make changes in spec ifications and design without thereb y incurring any obligation relative to previously manufactured products

Sincerely, WALKER MANUFACTURING COMPANY

Bob Walker, President

SERVICE INSTRUCTIONS

July 2006

SECTION INDEX

INTRODUCTION...................................................................................................INTRO

SET-UP..........................................................................................................................1

LUBRICATION...............................................................................................................2

MAINTENANCE INSTRUCTIONS.................................................................................3

SERVICE PROCEDURES.............................................................................................4

ELECTRICAL SYSTEMS..............................................................................................5

DECKS...........................................................................................................................6

INDEX............................................................................................................................7

WALKER MANUFACTURING COMPANY

SERVICE INSTRUCTIONS

July 2006

WALKER MANUFACTURING COMPANY

SERVICE INSTRUCTIONS

July 2006

INTRODUCTION

Contents of this Section

SUBJECT P AGE

GLOSSARY OF TERMS - ALL MODELS AND IMPLEMENTS ..............................Intro-2

GENERAL INFORMATION.....................................................................................Intro-3

IDENTIFYING NUMBER LOCATIONS ...................................................................Intro-3

ENGINE SERIAL NUMBER LOCATION................ .... ... ... ... .... ... ... ... .... ... ... ... ... .... ...Intro-4

PRODUCT REGISTRATION............ ... .......................................... ... .... ... ... ... ... .......Intro-6

MANUFACTURER INFORMATION........................................................................Intro-6

SPECIFICATIONS ....... ...........................................................................................Intro-7

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

INTRODUCTION

GLOSSARY OF TERMS - ALL MODELS AND IMPLEMENTS

There are many terms that are either unique to this equipment or that are used as acronyms. The following terms and their definitions will help while using this manual:

• DECK is the mowing attachment mounted on the

front of the tractor which includes the carrier frame, deck housing, blade drive gearboxes, and cutter blades.

• ELECTRONIC CONTROL UNIT (ECU) controls

engine functions such as spark timing, fuel/air ratio, etc.

• FORWARD SPEED CONTROL (FSC) controls

the maximum forward speed of the tractor; functioning as a cruise control.

• GRASS HANDLING SYSTEM (GHS

mowed material and deposits it in the catcher.

• GRASS-PAK

delivery spout (in the catcher) and activates the “full” signal horn when the grass catcher is full.

SWITCH is mounted on the grass

) collects

• POWER TAKE-OFF (PTO) transmits engine pow-

er to run the cutter blades and GHS blower.

• POWERFIL

throughout the interior of the grass catcher by an oscillating delivery spout.

• RIGHT HAND (RH) refers to the right-hand side of the tractor when the operator is facing forward from the operator position.

spreads the mowed material

• SIDE DISCHARGE (SD) mows but does not col-

lect the mowed material.

• STEERING LEVERS steer the tractor by

controlling the dual hydrostatic transmissions or transaxles.

• TRACTOR is the prime mover, including the

engine, drive train, and controls to operate the mower.

• TRANSAXLE transmits and controls po wer from

the ground drive belt to the main drive wheel.

• TRANSAXLE LOCKOUT RODS release the tran-

saxles to permit freewheeling the tractor.

• GROUND DRIVE refers to the dual hydrostatic

transmissions or transaxles which drive the main wheels.

• HYDROSTATIC TRANSMISSION transmits and

controls power from the ground drive belt to the main drive wheel.

• IMPLEMENT refers to the Perfaerator, dozer

blade, rotary broom, two-stage snowblower, and debris blower.

• LEFT HAND (LH) refers to the left-hand side of the

tractor when the operator is facing forward from the operator position.

• NEUTRAL LOCKOUT releases the hydrostatic transaxles to permit freewheeling the tractor.

• PISTOL GRIPS steer the tractor by controlling the dual hydrostatic transaxles.

• TRANSMISSION LOCKOUT releases the hydro-

static transmissions to permit freewheeling the tractor.

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SERVICE INSTRUCTIONS

July 2006

GENERAL INFORMATION IDENTIFYING NUMBER LOCATIONS

Model MS, MB, MC, MD, MT

The tractor serial number plate is affixed to the tractor body just below the left rear corner of the seat. The mower deck serial number plate is affixed alon gside the angle iron framing on the LH side of the LH mower blade drive. Model and serial numbers are helpful when obtaining replacement parts and maintenance assistance.

Serial Number

Model MW

The mower serial number is affixed to RH side of the inside of the unit housing. Model and serial numbers are helpful when obtaining replacement parts and maintenance assistance.

Ref. RH

Drive Wheel

Ref. Engine

Air Cleaner

Serial

Number Plate

Tractor Serial Number Location - Model MW

(Top View of Tractor)

Tractor Serial Number Location

(Model MT shown)

Serial Number

Mower Deck Serial Number Location

(DGHS48 Deck shown)

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

ENGINE SERIAL NUMBER LOCATION

Model MC, MT, MTL, MTEFI, MTLEFI

Refer to the engine manual for the location of the engine serial number. For the mower model(s) covered by this manual, an engine manual is available from Kohler covering the Kohler engines.

Serial Number

Engine Serial Number Location - Model MT, MTEFI

Serial Number

Model MD

Refer to the engine manual for the location of the engine serial number. For the mower model covered by this manual, an engine manual is available from Kubot a covering the Kubota D722 diesel engi ne (liquid cooled).

Serial Number

Engine Serial Number Location (MD)

Model MS

The Kawasaki engine model, type, and code numbers are located on the starter side of th e engine shroud. For the mower model covered by this manual, an engine manual is available from Kawasaki to cover the Kawasaki FE400.

Engine Serial Number Location -

Model MTL, MTLEFI

Engine Serial Number Location (MC)

Serial Number

Engine Serial Number Location (MS)

(view from right side of tractor)

Serial Number

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SERVICE INSTRUCTIONS

July 2006

Model MW

The Kawasaki engine model, type, and code numbers are located on the side of the engine opposite the recoil starter handle (on the aluminum housing). For the mower model covered by this ma nu al, a n en g ine m a nu al is available from Kawasaki to cover the Kawasaki FH430V.

Serial Number

Model MB

The Briggs & Stratton engine model, type, and code numbers are located on the left hand of the engine shroud. For the mower model covered by this manual, an engine manual is available from Briggs & Stratton to cover this engine.

Serial Number

Engine Serial Number Location (MB)

Engine Serial Number Location (MW)

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

PRODUCT REGISTRATION

Product registration is available online. Go to www.service.walkermfg.com/registration/register.py to fill out registration information.

Registration Link

Product Registration Link

MANUFACTURER INFORMATION

Service manuals are available for each of these components from their respective manufacturers as follows:

Briggs & Stratton Briggs & Stratton Engine 800-233-3723

(24-hour hotline in USA & Canada) www.briggsandstratton.com

Kawasaki Engines Kawasaki Motors Corp.

P.O. Box 888285 Grand Rapids, MI 49588-8285 www.kawpower.com

Kohler Engines Kohler Company

Kohler, WI 53044 800-544-2444 www.kohlerengines.com

Kubota Engines Kubota Engine America Corp.

505 Schelter Road Lincolnshire, IL 60069

Transaxle Hydro-Gear

1411 South Hamilton Street Sullivan, IL 61951

Hydrostatic Eaton Corporation Transmissions 15151 Highway 5

Eden Prairie, MN 55344

Gearboxes (Deck) Tecumseh Power Co.

1555 South Jackson Street Salem, IN 47167 812-883-3575

WALKER MANUFACTURING COMPANY

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SPECIFICATIONS

MODEL

ENGINE

Manufacturer/Model

MT MTL25 MTEFI

MTL31 MD

MC MS MW MB

Displacement

MT MTL25 MTEFI MTL31 MD MC MS MW MB

SERVICE INSTRUCTIONS

July 2006

Kohler Command CH20, 2 Cyl., Gasoline (Air Cooled) Kohler Aegis Kohler Command Pro Electronic Fuel Injection (EFI) Kohler Aegis LH730, 2 Cyl., Gasoline (Liquid Cooled), Electronic Fuel Injection (EFI) Kubota D722, 3 Cyl., Diesel (Liquid Cooled) Kohler Command CH18, 2 Cyl., Gasoline (Air-Cooled) Kawasaki, FE 350D, 1 Cyl. OHV (Air-Cooled) Kawasaki, FH430V, OHV, 2 Cyl. V-Twin (Air-Cooled) Briggs and Stratton Vanguard, 2 Cyl. OHV (Air-Cooled)

38.1 cu. in. (624 cc)

41.1 cu. in. (674 cc)

44.0 cu. in. (725 cc)

45.6 cu. in. (748 cc)

44.0 cu. in. (722 cc)

38.0 cu. in. (624 cc)

24.5 cu. in. (401 cc)

26.3 cu. in. (431 cc)

34.7 cu. in. (570 cc)

LH685, 2 Cyl., Gasoline (Liquid Cooled)

CH26, 2 Cyl., Gasoline (Air Cooled),

HP (@ 3600 RPM)

MT MTL25 MTEFI MTL31 MD MC, MB MS MW

Max. RPM (No Load)

MT, MTEFI, MTL25/31, MC MD MS, MW MB

Governed RPM

MT, MTEFI, MTL, MD, MC, MS, MW MB

Max. Torque [ft-lb (N

MT MTL25 MTEFI MTL31 MD MC MS MW MB

⋅ m) @ RPM]

20.0

25.0

26.0

31.0

20.9

18.0

13.0 15

3750 3800 4000 3600 ± 100

3600 3600 ± 100

32 (44.0) @ 2500

40.1 (54.4) @ 2200

41.6 (56.4) @ 2700

47.7 (64.7) @ 2400 34 (46.1) @ 2600 30 (41) @ 2500

19.5 (26.4) @ 2500

23.6 (32 N

29.5 (40.5) @ 2400

⋅ m) @ 2400

WALKER MANUFACTURING COMPANY

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Idle RPM

MT, MTL, MTEFI, MC MD MS MW MB

SERVICE INSTRUCTIONS

July 2006

1200 ± 75 1000 ± 50 1300 1500 1750

Spark Plug Type

MT, MTEFI, MC MTL, MB MD MS MW

Spark Plug Gap

MT, MTL, MTEFI, MC, MS, MW, MB MD

Crankcase Capacity

MT, MTEFI MTL, MC MD MS MW MB

Crankcase Lubricant

MT, MTL, MTEFI, MC MD MS, MW MB

Champion Champion

RC12YC

RC14YC N/A NGK BPR5ES Champion

RCJ8Y

.030 in. (.76 mm) N/A

2.1 qts (2.0 liters) 2 qts (1.9 liters)

3.1 qts (2.9 liters)

1.35 qts (1.3 liters)

1.8 qts (1.7 liters)

1.5 qts (1.4 liters)

API SG, SH, SJ or higher Grade Oil Only with 10W-30 Viscosity above 0° F (-18° C), or 5W-20 or 5W-30 Viscosity below 32° F (0° C) API CC/CD/CE Grade Oil Only with 10W-30 Viscosity or 30W above 77° F (25° C) Only API SC/SD/SE/SF/SG/SH Grade Oil Only with 10W-30/10W-40 Viscosity or 40W Above 68° F (20° C) Only SF/SG/SH/SJ or Higher Grade Oil Only with 30W Viscosity Above 40° F (4° C)

Oil Filter

MT, MTL, MTEFI MD MC MS MW

MB Coolant (MTL, MD Only) 50/50 Pre-Mix Anti-freeze/ water Cooling Fan (MTL, MD Only) Electric radiator cooling fan with reversible self-cleaning action

Fuel Tank Capacity

MT, MTL, MTEFI, MD

MC, MW, MB

MS Fuel

MT, MTL, MTEFI, MC, MS, MW

MB Cooling System Capacity

MT, MTEFI, MC, MS, MW, MB

MTL, MD

12 050 01 S 15841-32439 28-050-01 49065-2057 49065-2078 492932

5 Gallons (19.0 liters) 3 Gallons (11.4 liters)

1.7 Gallons (6.4 liters)

Regular Grade Unleaded Gasoline (87 Octane) Diesel Fuel 2-D Automotive Grade Unleaded Gasoline (85 Octane)

Air Cooled Liquid Cooled

1.25 Gallons (4.73 liters)

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

ELECTRICAL SYSTEM

Battery

MT, MC

MD, MTL, MTEFI

MB Charging System

MT, MTL, MTEFI, MC, MS, MB

MW Charging Output

MT, MC, MW

MTL, MTEFI

MB System Polarity

All Models Negative Ground

12 Volt, 35 AH, 295 CCA 12 Volt, 41AH, 340 CCA (Interstate U1-SP40) 12 Volt, 230 CCA (Interstate SP-30) 12-Volt, Interstate PC1250 12 Volt, 220 CCA (Interstate PC12/80)

Flywheel Alternator Automotive Type Alternator

12.5 Amp Alternator

15 Amp DC (Regulated) 25 Amp DC (Regulated)

12.5 Amp DC (Regulated) 13 Amp DC (Regulated) 16 Amp DC (Regulated)

Ignition

MT, MTL, MTEFI, MC

MB Starter

MT, MTL, MTEFI, MD, MC

MS, MB

MW Interlock Switch

MT, MTL, MTEFI, MD, MC, MS, MB

Circuit Breaker

MT, MTL25, MTEFI, MC

MD, MTL31

TRANSMISSION

Manufacturer/Model

MT, MTL, MTEFI, MD, MC, MS

MB, MW

Electronic Capacitive Discharge Diesel with Glow Plugs Transistorized Electronic Magneto Electronic Magneto Magnetron

12 Volt Electric Ring-Gear Type, Solenoid Shift 12 Volt Electric Key and Solen oid Operated Recoil Starter

Ignition Lockout by Seat Switch, T ransmission Neutral an d Blade Clutch Ignition Lockout by Operator Presence Lever, Transmission Neutral and Blade Clutch

Auto Reset (30A) Auto Reset (40A) Replaceable Fuse (20A) Manual Reset (10A) Manual Reset (15A)

Dual Hydrostatic, Eaton Model 7, Each Wheel Independently Driven Dual, Independent Hydro-Gear Integrated Transaxles

Electronic

Steering

MT, MTL, MTEFI, MD, MC, MS, MB

Hand Lever Control / Individual Wheel Handle Pistol Grips / Individual Wheel

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SERVICE INSTRUCTIONS

July 2006

Forward Speed Control

MT, MTL, MTEFI, MD, MC, MS, MB

Service Brake

MT, MTL, MTEFI, MD, MC, MS

MW, MB

Parking Brake

MT, MTL, MTEFI, MD, MC, MS

MW, MB Neutral

All Models Transmission Release by Manual Dump Valve Final Drive

MT, MTL, MTEFI, MD, MC, MS

MW, MB

Transmission Fluid

Factory Service

MT, MTL, MTEFI, MD, MC, MS

MB Alternate Transmission Fluid

MT, MTL, MTEFI, MD, MC, MS

MW, MB Transmission Fluid Capacity

MT, MTL, MTEFI, MD, MC, MS

MW, MB Transmission Cooling

All Models Cooling Fan Mounted on Drive Pulley

Ground Travel Speed

Forward m.p.h. (km/h)

MT, MTEFI

MTL

MD, MC, MS, MW

MB Reverse m.p.h. (km/h)

MT, MTEFI, MD, MC, MS

MTL

Precision Friction Lock Lever, Cruise Control, with Neutral-Park Position Variable Speed Controlled by Rocker Switch Near RH Thumb, with Neutral Park Setting

Dynamic Braking through Hydrostatic Transmission Mechanical Lockout for each Transmission (Single Lever Control)

Mechanical Pin Lock in Transmission Gear Mechanical Cog Lock on Transm ission Gear

Gear Drive Axle Direct Drive Axle from Transaxle

Mobil 1 Synthetic Motor Oil (15W-50) 20W50 Multi-Viscosity Motor Oil 20W50 Multi-Viscosity Motor Oil (Minimum SL Grade Oil)

SAE 30W Straight Viscosity Motor Oil 20W50 Synthetic Motor Oil

1 qt (1 liter) 79 fl oz (2336 ml)

0-5 (0-8) Infinitely Variable* 0-7 (0-11) Infinitely Variable 0-5 (0-8) Infinitely Variable 0-8 (0-13) Infinitely Variable

0-5 (0-8) Infinitely Variable 0-7 (0-11) Infinitely Variable 0-2 (0-3) Infinitely Variable 0-8 (0-13) Infinitely Variable

BLADE DRIVE

PTO Shaft

MT, MTL, MTEFI, MD, MC, MW

MS, MB Blade Spindle

All Models Each Blade (2) Mounts Direct on Peerless Right Angle

Quick Disconnect Spline Shaft with Two High-Speed U-Joints Sliding Spline Shaft with Two (2) High-Speed U-Joints

Gearbox with Tee Gearbox in Center Connected to PTO Shaft (Complete Geared Drive, Peerless Model 1000 Gearboxes)

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Blade Drive Clutch and Brake

MT, MTL, MTEFI, MD, MC, MW

SERVICE INSTRUCTIONS

July 2006

Manual Belt Tightener Clutch and Band Brake (Stops Blades within Five (5) Seconds of Disengagement)

Max. Blade Speed [22 in. (56 cm) Blade] @ 3600 RPM Engine

MT, MTL, MTEFI, MC, MS, MB Max. Blade Speed

[25 in. (64 cm) Blade] @ 3600 RPM Engine

TIRE SIZE

Deck Caster Wheel

36, 42, 48, 56

52, 62, 74 Deck Caster Wheel (Optional)

36, 42, 48, 56 8 x 3.00-4 Foamed Rubber

Manual Belt Tightener Clutch a nd Scrubber Brake (Stops Blades within Five (5) Seconds of Disengagement)

12V Electrical (Electromagnetic Clutch and Brake) Switch Operated [Stop s Blad es within Five (5) Seconds of Disengagement]

2900 RPM [16700 FPM (5090 m/min)]

2900 RPM [16700 FPM (5090 m/min)] 2400 RPM [15700 FPM (4785 m/min)] (48" Deck)

8 x 3.00-4 Pneumatic (4-Ply) 11 x 4.00-5 Pneumatic

Drive

MT, MTL, MTEFI, MD

MW, MB Drive (Optional Narrow Tire)

MT, MTL, MTEFI, MD, MW, MB

MS Drive (Optional Wide Tire)

MT, MTL, MTEFI, MD

MS Rear

MC, MS, MB

MW Rear (Dual)

MT, MTL, MTEFI, MD Rear Wheel (Optional)

MW 8.25 x 2.75 Foamed Rubber

18 x 9.50-8 (4-Ply) 18 x 8.50-8 (4-Ply Low-Profile) 18 x 6.50-8 (4-Ply) 18 x 8.50-10 (4-Ply Low-Profile)

N/A 18 x 6.50-8 (4-Ply) 18 x 8.50-8 (4-Ply)

18 x 9.50-8 (4-Ply) 18 x 8.50-8 (4-Ply)

13 x 6.50-6 (4-Ply) 8 x 3.00-4 Pneumatic (4-Ply)

13 x 5.00-6 (4-Ply)

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SERVICE INSTRUCTIONS

July 2006

TIRE PRESSURE

Deck Caster Wheel

All Models 20 PSI (137 kPa) Drive

All Models 15 PSI (103 kPa) Rear

All Models 20 PSI (137 kPa)

DIMENSIONS (Tracto r and Mower) (**MT, MTEFI, MTL, MD) Length

MT, MTL, MTEFI, MD

MB 36 in. (91 cm) GHS Model

MC, MS 87 in. (221 cm) 42 in. (107 cm) GHS Model

MC, MS 89 in. (226 cm)

Width

MT, MTL, MTEFI, MD

MW 36 in. (91 cm) SD Model

(with Deflector)

MC, MS, MB 41-3/4 in. (106 cm) 42 in. (107 cm) SD Model

(with Deflector)

MC, MS, MB 47-3/4 in. (121 cm)

91 in. (231 cm) 80 in. (203 cm) 82 in. (208 cm)

49 in. (124 cm) 48-3/4 in. (124 cm)

48 in. (122 cm) SD Model (with Deflector)

MB 53-3/4 in. (137 cm) 56 in. (142 cm) SD Model

(with Deflector)

MB 61-3/4 in. (157 cm) 36 in. (91 cm) GHS Model

MC, MS 37 in. (94 cm) 42 in. (107 cm) GHS Model

MC, MS 43 in. (109 cm)

Height

MT, MTL, MTEFI, MD

MB SD Model

MC, MS 37-1/2 in. (95 cm) GHS Model

MC, MS 44-1/2 in. (112 cm) Wheel Base (Tractor)

MT, MTL, MTEFI, MD, MC, MS

44 in. (112 cm) 44-3/4 in. (114 cm) 39 in. (99 cm)

42-1/4 in. (107 cm) 22 in. (56 cm) 38-1/2 in. (98 cm)

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Tread Width (Tractor) Standard Tires

MC, MS 28-1/4 in. (72 cm) Tread Width (Tractor)

MT, MTL, MTEFI, MD, MB

MW Optional Tires

MC, MS 29-3/4 in. (76 cm)

MOWER DECK

Width of Cut SD/GHS

MT, MTL, MTEFI, MD

MC, MS

MB Cutting Height

All Models 1 to 4 in. (3 to 10 cm) Height Adjustment

All Models 7 Positions - 1/2 in. (1 cm) Increment Hitch Pins Installed in

Blade Size

29-3/4 in. (76 cm) 29-1/4 in. (74 cm)

42 or 48 in. (107 or 122 cm) 36 or 42 in. (91 or 107 cm) 36-, 42-, 48-, 52-, or 56-in. (91, 107, 122, 132, or 142 cm) 36-, 42-, 48-, or 56-in. (91, 107, 122 or 142 cm)

Multi-Position Deck Support

36 in. (91 cm) SD Model

MT, MTL, MTEFI, MD, MW

MC, MS, MB

42 in. (107 cm) SD Model

All Models 22 in. (56 cm) Two (2) Clockwise-Rotating Blades with a 2 in.

48 in. (122 cm) SD Model

MT, MTL, MTEFI, MD, MC, MS

56 in. (142 cm) SD Model

MB Only 20 in. (51 cm) Three (3) Clockwise-Rotating Blades with a 2

36 in. (91 cm) GHS Model

MT, MTL, MTEFI, MD, MW, MB

MC, MS

42 in. (107 cm) GHS Model

MT, MTL, MTEFI, MD, MW, MB

MC, MS

N/A 20 in. (51 cm) Two (2) Clockwise-Rotating Blades with a 4 in. (10 cm) Center Overlap

(5 cm) Center Overlap

N/A 48 in. (122 cm) 25 in. (64 cm) 2 in. (5 cm) Center Overlap (Two Blades, CW Rotation) 25 in. (64 cm) Two (2) Clockwise-Rotating Blades with a 2 in. (5 cm) Center Overlap

in. (5 cm) Center Overlap

N/A 20 in. (51 cm) Two (2) Counter-Rotating Blades with a 4 in. (10 cm) Center Overlap

N/A 22 in. (56 cm) Two (2) Counter-Rotating Blades with a 2 in. (5 cm) Center Overlap

48 in. (122 cm) GHS

MT, MTL, MTEFI, MD

MC, MS, MW, MB

25 in. (64 cm) 2 in. (5 cm) Center Overlap (Two Blades, Counter Rotate) N/A

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SERVICE INSTRUCTIONS

July 2006

Deck Suspension

All Models Torsion-Flex Frame with Caster Wheels and

Counterweight Springs

CURB WEIGHT (Approximate)

SD Tractor Only

MT, MTEFI

MTL

MW, MB GHS Tractor Only

MT, MTEFI

MTL

MW, MB Tractor Only

MW***

660 lb (299 kg) 705 lb (320 kg) 760 lb (345 kg) 645 lb (293 kg) 490 lb (224 kg) N/A

785 lb (356 kg) 845 lb (383 kg) 850 lb (386 kg) 735 lb (334 kg) 565 lb (256 kg) N/A

370 lb (168 kg) 564 lb (256 kg)

SD Tractor and 36 in. SD Deck

MT, MTL, MTEFI, MD, MW

MB SD Tractor and 42 in. SD Deck

MT, MTL, MTEFI, MD, MW

MB SD Tractor and 48 in. SD Deck

MT, MTL, MTEFI, MD, MC, MS, MW

MB GHS Tractor and 36 in. GHS Deck

MT, MTL, MTEFI, MD, MB, MW

MS GHS Tractor and 42 in. GHS Deck

MT, MTL, MTEFI, MD, MW, MB

MS Tractor and Mower

MT**, MTEFI**

MTL**

MD**

MC, MS, MW, MB

N/A 775 lb (352 kg) 635 lb (288 kg) 709 lb (322 kg)

N/A 810 lb (368 kg) 670 lb (304 kg) 744 lb (337 kg)

N/A 769 lb (349 kg)

N/A 860 lb (390 kg) 715 lb (324 kg)

N/A 895 lb (406 kg) 735 lb (340 kg)

990 lb (449 kg) 1050 lb (476 kg) 1020 lb (463 kg) N/A

Tractor and Deck

MW Only*** 520 lb (236 kg)

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DRIVE BELTS

Engine PTO

MT, MTL, MTEFI, MC

MB Jackshaft Drive

MT, MTL, MTEFI

MS, MW, MB Ground Drive, Micro-V

MT, MTL, MTEFI, MD, MC

MS, MW, MB Ground Drive

MT, MTL, MTEFI, MD, MC

SERVICE INSTRUCTIONS

July 2006

Walker P/N 8230 Walker P/N 7230 Walker P/N 5230-2 Gates BX30 Walker P/N 9230 Walker P/N 4230

Gates 3VX375 (or Walker P/N 6250) Gates 3VX355 (P/N 6231) Gates 3VX385 (or Walker P/N 6251-1) N/A

Walker P/N 7248 N/A

N/A Walker P/N 5232 Gates 6847 Walker P/N 9248 Walker P/N 4248

Blower (GHS Model)

MT, MTL, MTEFI, MD, MC

MS, MW, MB

Gates 3VX280 (or Walker P/N 7234-1) N/A

PTO Drive SD Model

MS Only Walker P/N 5234-1 Gates 6935 PTO Drive GHS Model

MS Only Walker P/N 5234-2 Gates 6944

GHS SYSTEM (Optional)

Blower

MT, MTL, MTEFI, MD, MC

4 x 10 x 1/4 in. (10 x 25 x 1 cm) Three-Blade Paddle Wheel (Driven by Mower Engine)

3 1/2 x 9 x 1/4 in. (9 x 23 x 1 cm) Three-Blade Paddle Wheel (Driven by Mower Engine)

MW, MB

N/A

Blower Brake

MT, MTL, MTEFI, MD, MC

Band Brake (Works in Combination with PTO Clutch, Stops Blower within Five (5) Seconds of PTO Disengagement)

Belt Scrubber Brake (Works in Combination with PTO Clutch, Stops Blower within Five (5) Seconds of PTO Disengagement)

MW, MB

N/A

Max. Blower Speed

MT, MTL, MTEFI, MD, MC, MS

MW, MB

3600 RPM N/A

Grass Catcher Capacity

MT, MTL, MTEFI, MD

MC, MS

MW, MB Optional Grass Catcher Capacity

MT, MTL, MTEFI, MD, MC

MS, MW, MB

65 Gallons (246 liters)/7.0 Bushels 63 Gallons (238 liters)/6.7 Bushels N/A

89 Gallons (392 liters)/ 9.5 Bushels N/A

WALKER MANUFACTURING COMPANY

Page: Intro-15

Full Signal (Grass-Pak® Switch)

MT, MTL, MTEFI, MD, MC, MS

MW, MB Powerfil

MT, MTL, MTEFI, MD, MC, MS

MW, MB

SEAT

MT, MTL, MTEFI, MD, MC, MS,

FRAME/BODY CONSTRUCTION

Frame

MT, MTL, MTEFI, MD, MC, MS

MW, MB Body

MT, MTL, MTEFI, MD, MC, MS

MW, MB

SERVICE INSTRUCTIONS

July 2006

Oscillating Vane Switch Mounted on Grass Delivery Spout Triggers Horn Signal N/A

Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor Spreads Material throughout Interior of Catcher @ 25 Cycles/ Minute N/A

Contour-Molded, with Nylon Backed Vinyl Cover and Integral N/A Foam Cushion

All Welded Unitized Steel Chassis N/A

14 Gauge Steel N/A

Frame/Body

MT, MTL, MTEFI, MD, MC, MS

MW, MB

N/A 3/16 Plate Steel

Deck All Models 11 Gauge Steel

GHS Catcher and Chutes

MT, MTL, MTEFI, MD, MC, MS

MW, MB

Molded Cross-Linked Polyethylene (UV Stabilized) N/A

* 6.5 m.p.h. with Optional Speed-Up Kit

**Dimensions and weight shown are for 48 in. (122 cm) GHS Model (typical).

Dimensions for Tractor and Mower with 42 in. (107 cm) deck are:

Length = 88 in. (224 cm)

Width = 43 in. (110 cm) For SD Models, subtract 7 in. (18 cm) from the height. Deck weight for 48 in. (122 cm) Tilt-Up deck = 205 lb (93 kg). Deck sizes range from 42 to 74 in. (107 to 157 cm), with corresponding deck weights ranging from 170 to 400 lb (77 to 136 kg). Optional (9.5 Bushel) Grass Catcher adds approx. 5 lb (2 kg) and 5 in. (13 cm) in Height

*** Dimensions and weight shown are for 48 in. (122 cm) SD Deck (Typical)

Optional (9.5 Bushel) Grass Catcher adds approx. 5 lb (2 kg) and 5 in. (13 cm) in Height

NOTE: The manufacturer reserves the right to make changes in specifications shown herein at any time without notice or obligation.

WALKER MANUFACTURING COMPANY

Page: Intro-16

SUBJECT P AGE

SET-UP ..............................................................................................................1-3

Tractor Set up......................... ... ... .... .......................................... ........................1-3

Tire Installation (Tractor) ....................................................................................1-3

Battery Service ...................................................................................................1-3

Wet Battery Service - MS, MC, MD, MT, MTL, MTEFI ...............................1-4

Dry Battery Service - MS, MC, MD, MT, MTL, MTEFI ................................1-4

Battery Charging - MS, MC, MD, MT, MTL, MTEFI ....................................1-5

Battery Charging - Model MW, MB .............................................................1-5

Battery Installation - All Models ...................................................................1-5

Mower Deck Assembly.......................................................................................1-7

Deck Caster Wheels Installation - All Models .............................................1-7

Deck Discharge Chute Installation -

Model MS, MC, MD, MT, MTL, MTEFI ........................................................1-7

Deck Discharge Shield Installation - All Models ..........................................1-7

PTO Shaft Guard Installation - All Models ..................................................1-8

Tilt-Up Roller Wheel Installation -

Model MS, MB (after S/N 2006-81428), MC, MD, MT, MTL, MTEFI ..........1-8

Tilt-Up Roller Wheel Installation -

Model MW, MB (prior to S/N 2006-81428) ..................................................1-8

Mower Deck Installation on Tractor....................................................................1-9

Deck Installation - Model MC, MD, MT, MTL, MTEFI .................................1-9

Deck Installation - Model MS, MB .............................................................1-10

Deck Installation - Model MW ...................................................................1-11

Deck Leveling - All Models ........................................................................1-13

PREOPERATING FLUID LEVELS...................................................................1-14

Tractor Fluid Levels................................................... .... ... ... ... .... ......................1-14

Deck Fluid Levels...................... ... .... ... ... ... ... .... ... ... ... .......................................1-14

DSD52 or DSD62 Decks ..................................................................................1-14

Implement Fluid Levels................. .... ... ... ..........................................................1-15

Implement Assembly.................... .... ... ... ... .......................................................1-16

SETUP INSTRUCTIONS..... ... ... ... .... ... ... .......................................... ... ... .... ... ...1-16

Lift Lever Installation.........................................................................................1-16

Installation on Tractor.......................................................................................1-16

IMPLEMENT HITCH.........................................................................................1-17

Implement Hitch Installation .............................................................................1-17

Implement Hitch Wiring ....................................................................................1-18

SERVICE INSTRUCTIONS

July 2006

SECTION 1

Set-Up

Contents of this Section

WALKER MANUFACTURING COMPANY

Page:1-1

SERVICE INSTRUCTIONS

July 2006

DOZER BLADE ................................................................................................1-21

Dozer Blade Assembly .....................................................................................1-21

Dozer Blade Installation....................................................................................1-22

ROTARY BROOM............................................................................................1-22

Rotary Boom Installation ..................................................................................1-22

Optional Gauge Wheel Installation...................................................................1-25

TWO-STAGE SNOWBLOWER........................................................................1-25

Snowblower Assembly .....................................................................................1-25

Snowblower Installation....................................................................................1-26

DEBRIS BLOWER............................................................................................1-29

Debris Blower Installation.................................................................................1-29

SB36 Snowblower ............... ... ... ... .... ... ... .......................................... ... .............1-30

Model MS, MC, MD, MT, MTL, MTEFI ......................................................1-30

Model MB ..................................................................................................1-31

Model MS, MB, MC, MD, MT, MTL, MTEFI ..............................................1-32

WALKER MANUFACTURING COMPANY

Page:1-2

SERVICE INSTRUCTIONS

July 2006

SET-UP

Tractor Set up Tire Installation (Tractor)

Model MS, MC, MD, MT, MTL, MTEFI

• Install the drive tires using the eight (8) lug bolts that

are supplied with the owner's packet of materials. Bolts are torqued to 75 to 85 ft-lb.

Model MW, MB

• Install the drive tires using the eight (8) lug nuts that

are supplied with the owner's packet of materials.

All Models

• Check and adjust the inflation of the tires. The tire in-

flation recommendations are:

Drive = 15 PSI (103 kPa) Rear = 20 PSI (137 kPa)

Battery Service

Model MT, MTL, MTEFI

CAUTION

Important Battery Service, Installation, and Changing Tip s for M TEFI:

• Do not allow the battery cables to touch

opposing terminals. When connecting battery cables attach the positive (+) cable to positive (+) battery terminal first, followed by negative (-) cable to n egative (-) batt ery terminal.

• Never start the engine when the cables

are loose or poorly connected to the battery terminals.

• Never disconnect battery while engine is

running.

• Never use a quick battery charger to

start the engine.

• Never "jump start" the engine using

another source. Electricity fluctuations can damage the ECU (Electronic Control Unit) on EFI Models.

• Do not charge battery with key switch

"on."

• Always disconnect negative (-) battery

cable lead before charging battery, unplug harness from ECU on EFI Models, before performing any welding on equipment.

Model MD, MT, MTL, MTEFI

Raise front mower body up for battery access. Check the battery for electrolyte level and charge. The electrolyte level should be at the bottom of the vent wells [1/ 4 to 1/2 in. (6 to 13 mm) above plates]. If the specific gravity is less than 1.225, the battery needs charging. If the battery has been shipped dry, or is wet but needs service, refer to the following instructions.

Model MS, MC

Tilt mower body up (lift on rear of body) for battery access. Check the battery for electrolyte level and charge. The electrolyte level should be at the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above plates]. If the specific gravity is less than 1.225, the battery needs charging. If the battery has been shipped dry , or is wet but needs service, refer to the following instruc tio ns .

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Model MW, MB

The battery is a completely sealed, non-serviceable battery.

Front of Mower

Ref. Engine

Battery Location - Model MW

All Models

IMPORTANT: Make sure battery is secu rel y mo unted in the frame. A loose battery may cause damage to the case resulting in acid leakage and severe damage to the machine. A hazard may be created by damage to critical working parts and safety systems.

Dry Battery Service - MS, MC, MD, MT, MTL, MTEFI

DANGER

Activating a battery can be dangerous. DO NOT attempt to activate the battery unless you are experienced in battery service work. The following activation and charging instructions are provided for use by a trained battery technician.

DANGER

Battery electrolyte is a poisonous and corrosive sulfuric acid solution.

• Avoid spillage and contact with skin,

eyes, and clothing - causes severe burns.

• To prevent accidents, wear safety gog-

gles and rubber gloves when working with electrolyte.

• Neutralize acid spills with baking soda

and water solution.

Wet Battery Service - MS, MC, MD, MT, MTL, MTEFI

If the battery has been shipped wet, but the electrolyte level is low or the battery needs to be charged then:

1. Fill each battery cell with drinking water to the bottom of the vent wells.

2. Charge battery. Refer to Battery Charging in this section.

To fill (activate) battery with electrolyte (if battery has been shipped dry):

1. Remove the battery hold down bar , disconnect the battery cables and lift the battery out of the tray.

IMPORTANT: Battery must be removed from the mower before filling with electrolyte.

IMPORTANT: Obtain and use only battery grade sulfuric acid electrolyte with a 1.265 specific gravity to activate the battery. DO NOT use water or any other liquid during initial activation.

2. Remove the filler caps and carefully fill each cell until the electrolyte is just above the plates.

3. After the battery is filled with electrolyte, replace the filler caps and charge the battery . Refer to Bat- tery Charging.

WALKER MANUFACTURING COMPANY

Page:1-4

SERVICE INSTRUCTIONS

July 2006

Battery Charging - MS, MC, MD, MT , MTL, MTEFI

DANGER

BA TTE RIES PR ODUCE EXPLOSIV E GASES

• Charge the battery in a well-ventilated

area, so that gases produced wh ile charging can dissipate.

• Keep sparks, flames, and smoking mate-

rials away from the battery at all times.

• Make sure the battery cap vents are open

after the battery is filled with acid (check manifold vent on each cap).

• Make sure the battery charger is unplug-

ged before connecting or disconnecting cables to the battery.

IMPORTANT: On MTEFI and MTLEFI models, al-

ways disconnect the negative (-) battery terminal before charging. Failure to do so can result in damage to the ECU.

1. Charge the battery at 15 amps for 10 minutes. DO NOT exceed 20 amps maximum recommended charging rate. Charge until specific gravity is at least 1.250. T ot al charging time should not exceed one (1) hour.

2. After charging the battery, adjust the electrolyte level to the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above the plates].

IMPORTANT: DO NOT overfill the battery. Electrolyte will overflow through the vented caps onto parts of the machine and WILL result in severe corrosion.

3. Install battery.

Battery Charging - Model MW, MB

DANGER

BA TTE RIES PRODUCE EXPLOSIV E GASES

• Charge the battery in a well-ventilated

area, so that gases pr oduced while charging can dissipate.

• Keep sparks, flames, and smoking mate-

rials away from the battery at all times.

• Make sure the battery charger is unplug-

ged before connecting or disconnecting cables to the battery.

Limit initial charging current to 1000mA. Charge until battery voltage (under charge) reaches 14.40 to 14.70 volts at 68°F (20°C). Hold at 14.40 to 14.70 volts until current drops to approximately 50mA. Battery is fully charged under these conditions, and charger should be disconnected.

NOTE: Due to the self-discharge characteristics of this type of battery , it is imperative that it be charged after 6-9 months of storage, otherwise permanent loss of capacity might occur as a result of sulfation.

Battery Installation - All Models

IMPORTANT: Make sure battery is securely mounted in the frame. A loose battery may cause damage to the case resulting in acid leakage and severe damage to the machine. A hazard may be created by damage to critical working parts and safety systems.

Install the battery in the mower as shown in Battery In- stallation photo. Connect the positive (+) first and then the negative (-) cables to th e proper battery terminal

(red cable and boot connects to the Posit ive (+) terminal). Slide the rubber boot up and over the battery post, making sure it covers the post comple tely to prevent an electrical short.

WARNING

Make sure the battery cap vent s are open. Improper venting of the battery COULD cause a battery explosion.

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Page: 1-5

Battery Clamp

Secured by

Wing Nut(s)

(+) Battery Cable

Battery Protector

Plate in Place

SERVICE INSTRUCTIONS

July 2006

Battery Clamp

Secured by

Wing Nuts

(+) Battery Cable

Connection

RH Drive Wheel

Battery Installation - Model MT, MTL, MTEFI

Battery Clamp Secured

by Wing Nut(s)

Battery Installation - Model MD

Battery Clamp

Secured by

Wing Nut(s)

(+) Battery Cable

Connection

Battery Installation - Model MS

(+) Battery Cable

Connection

Battery Installation - Model MW

(+) Battery Cable

Battery Installation - Model MC

Connection

(+) Battery Cable

Connection

Battery Installation - Model MB

WALKER MANUFACTURING COMPANY

Page:1-6

SERVICE INSTRUCTIONS

July 2006

Mower Deck Assembly

Deck Caster Wheels Installation - All Models

1. Remove the bolt, nut, axle spacer tube, and spacer washers from each deck caster wheel fork.

2. Fit the axle spacer tube through the wheel hub, position the spacer washer on each side of the hub (if used), and fit the assembly into the wheel fork.

3. Insert the 3/8-16 x 4-1/2 in. bolt through the wheel fork with the bolt head to the outside and install the 3/8-16 in. Keps nut.

4. Tighten the bolt and nut until the axle spacer tube bottoms against the inside of the wheel fork (will not turn) while the wheel and spacer wa shers (if used) spin freely without binding.

Grease Fitting

Locations

Deck Discharge Chute Installation (GHS Rear Discharge Models Only) - Model MS, MC, MD, MT, MTL, MTEFI

Mount the discharge chute hinge on top of the deck di scharge opening using the 1/4-20 x 1/2 in. socket button head bolt and 1/4-20 ESNA nut. Position the bolt with the head inside of the chute and the nu t on the out side. Attach spring for tilt-up action from chute to bracket on deck.

Carrier Frame

Tube Sockets

Attach Guard

Nut on Top

Attach

Chute

Spacer Washer

Axle Spacer Tube

Deck Caster Wheel Installation

5. Grease the caster wheel bearings and caster pivot bearings - one grease fitting for each wheel and each pivot.

Discharge Chute and PTO Shaft Guard

Installation on Rear Discharge Deck

Deck Discharge Shield Installation (Side Discharge Models Only) - All Models

Attach the deck side discharge shield by positioning the shield hinge lug in front of the deck mount and fastening with two 3/8-16 x 1-1/4 in. bolts, 3/8-16 ESNA nuts, and 3/8 in. wave spring washers. The wave washers fit between the two hinging surfaces. Tighten the nuts until the shield moves freely but is not loose.

WARNING

DO NOT operate the machine without the grass deflector shield atta ched and in t he lowest possible position.

WALKER MANUFACTURING COMPANY

Page: 1-7

SERVICE INSTRUCTIONS

July 2006

Attach Shield

Discharge Shield Installation

on Side Discharge Deck

PTO Shaft Guard Installation - All Models

Position the shaft guard as shown and mount with two 1/4-20 x 1/2 in. bolts.

Tilt-Up Roller Wheel Installation - Model MS, MB (after S/N 2006-81428), MC, MD, MT, MTL, MTEFI

Mount the two (2) tilt-up roller wheels on the brackets on the rear skirt of the deck housing using the P/N 8490 axle bolt, 3/8 in. wave spring washer and 3/816 in. Whiz locknut. Tighten the axle bolt until the wheel rolls freely, but is not loose.

Attach Spring

Carrier Frame

Tube Sockets

PTO Shaft Guard Installation

Attach Guard

Roller Wheels

Tilt-Up Spring and Roller Wheel

Installation on Rear Discharge Deck

Tilt-Up Roller Wheel Installation - Model MW, MB (prior to S/N 2006-81428)

NOTE: A 2-1/2" diameter tilt-up roller wheel (P/N 9772) is required.

Roller Wheels

Tilt-Up Roller Wheel Installation - Model MW

WALKER MANUFACTURING COMPANY

Page: 1-8

SERVICE INSTRUCTIONS

Mower Deck Installation on Tractor

Deck Installation - Model MC, MD, MT, MTL, MTEFI

July 2006

1. Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation photo for location of deck support arm.

2. Engage the deck carrier frame tube sockets on the tractor support arms (refer to Discharge Chute and PTO Shaft Guard In stallation photo for socket location). Slide the deck onto the support arms: all the way if SD equipped model, approximately 3 in. (76 mm) if GHS equipped model.

NOTE: When installing the DSD52 (or DSD62 MT, MTL, MTEFI, MD) Mower deck, make sure to retract the dolly wheel after mounting the deck on the tractor.

3. If the deck is rear discharge (GHS equipped model), the rear discharge chute will need to be aligned and connected to the blower inlet during the last 2 in. (51 mm) of slide action on the support arms.

NOTE: Raising the mower body may be helpful in fitting and guiding the deck chute into the blower.

4. Install the hitch pin through the hole on the end of each support arm to lock the deck in place (refer to Deck Counterweight Spring Installation photo). Two (2) h itch pins are included in the owner's packet of materials.

5. Connect the mower deck PTO drive shaft assembly to the tractor with the splined quick disconnect coupler. This coupler simplifies shaft alignment and installation.

Arrows on Shaft and T ube

(used to align when sliding together)

PTO

Connection

Grease Deck

Support Arms

Mower Deck Installa tion (PTO Shaft Connection)

Pull Back Spring-Loaded

Coupler Ring

Installing PTO Quick Coupler

Spring-Loaded Coupler Ring

In Fully Forward Position

a. Use the arrows on the shaft and tube to align

and slide the PTO quick coupler onto the deck splined shaft.

b. Reaching under the tractor, pull the ring back

on the coupler, slide onto the spline shaft on the tractor, and release the ring.

IMPORTANT: To prevent damage to the mower, make sure the PTO shaft assembly is securely locked on the tractor, with the locking balls fully seated in the groove and the ring in the full forward position (refer to the Coupler Ring “Locked” Po- sition photo). After installation, pull on the shaft to check for security .

Coupler Ring “Locked” Position

WALKER MANUFACTURING COMPANY

Page: 1-9

SERVICE INSTRUCTIONS

July 2006

Quick Coupler

Installation Tool

PTO Tube

Quick Coupler Installat ion Tool

Model MC, MD, MT, MTL, MTEFI

6. Raise the mower body (instead of lifting the front of deck) and clip the counterweight springs to the receptacle on front of body. Lower the body to tension the springs. (Refer to Deck Counterweight Spring Installation Photo.)

7. With the counterweight springs connected, the weight on the deck caster wheels should be 15 to 25 Ib (6.8 to 11.3 kg). Check this w eight by lifting on the front of the deck carrier frame. If required, the spring tension can be adjusted by tightening or loosening the elastic stop nuts located underneath the lower spring hook. Refer to Deck Counter- weight Spring Installation photo.

Deck Installation - Model MS, MB

1. Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation photo for location of deck support arm.

2. Engage the deck carrier frame tube sockets on the tractor support arms (refer to PTO Shaft Guard In- stallation photo for socket location). Slid e the deck onto the support arms approximately 3 in. (76 mm ).

3. Align and connect the splined PT O shaft and socket halves, as shown in PTO Shaft Connection photo. The PTO shaft has a pilot end to ease alignment of shaft; fit shaft end into socket and rotate shaft until the splines line up as indicated b y arrows, then slide together.

Arrows on Shaft and Tube

(used to align when sliding together)

PTO Connection

PTO Shaft Connection

Spring Tension Adjustment

Nut Located Under Lower

Spring Hook (Not Visible)

Counterweight Springs

Clip Onto Body

With Body Tilted Up

Deck Counterweight Spring Installation

Hitch Pins

Lock Deck On

Support Arms

4. Install the hitch pin through the hole on the end of each support arm to lock the deck in place (refer to Deck Counterweight Spring Installation photo). Two (2) hitch p ins are included in the owner's packet of materials.

Deck Support

Arms

Mower Deck Installa tion

WALKER MANUFACTURING COMPANY

Page: 1-10

Spring Tension Adjustment Nut

Located Under Lower

Spring Hook (not visible)

Counterweight S prings

Clip Onto Body

With Body Tilted Up

Hitch Pins

Lock Deck On

Support Arms

SERVICE INSTRUCTIONS

July 2006

Deck Installation - Model MW

1. Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation photo for location of deck support arm.

2. Engage the deck carrier frame tube sockets on the tractor support arms. Slide the deck onto the support arms.

NOTE: When installing the DSD52 Mower deck, make sure to retract the dolly wheel after mounting the deck on the tractor.

3. Install the hitch pin through the hole on the end of each support arm to lock the deck in place (refer to

Counterweight Spring Receptacle Assembly

photos). T wo (2) hitch pins are included in the owner’s packet of materials.

4. Connect the mower deck PTO drive shaft assembly to the tractor with the splined quick disconnect coupler. This coupler simplifies shaft alignment and installation.

Deck Counterweight Spring Installation

5. Raise mower body (instead of lifting the front of deck) and clip the counterweight springs to the receptacle on front of body. Lower the body to tension the springs. (Refer to Deck Counterweight Spring Installation photo.)

6. With the counterweight springs connected, the weight on the deck caster wheels should be 15 to 25 Ib (6.8 to 11.3 kg). Check this w eight by lifting on the front of the deck carrier frame. If required, the spring tension can be adjusted by tightening or loosening the elastic stop nuts located underneath the lower spring hook. Refer to Deck Counter- weight Spring Installation photo.

a. Use the arrows on the shaft and tube to align

and slide the PTO quick coupler on to the deck splined shaft.

b. Reaching under the tractor, pull the ring back

on the coupler, slide onto the spline shaft on the tractor, and release the ring.

Grease Deck

Support Arms

PTO

Shaft

Mower Deck Installa tion (PTO Shaft Connection)

WALKER MANUFACTURING COMPANY

Page: 1-11

SERVICE INSTRUCTIONS

July 2006

Pull Back Spring-Loaded

Coupler Ring

Installing PTO Quick Coupler

Spring-Loaded Coupler Ring

In Fully Forward Position

Locking Finger "Snaps"

Lift Up on Locking

Finger to Lower

Assembly

Counterweight Spring Receptacle Assembly in

"Locked" Position

6. With the counterweight springs connected, the weight on the deck caster wheels should be 15 to 25 Ib (7 to 1 1 kg). Check this weight by lifting on the front of the deck carrier frame. If required, the spring tension can be adjusted by tightening or loosening the elastic stop nuts located underneath the lower spring hook.

to Hold Assembly in

"Locked" Position

Coupler Ring “Locked” Position

5. Pull out counterweight spring receptacle assist handle and lift up on locking finger slightly to unlock the receptacle assembly. Lower this assembly toward the deck and attach the counterweight springs to the receptacle. Raise the assist handle until the assembly locks into the raised position to tension the springs.

1) Install Counterweight Spring Clip

into Receptacle

Counterweight Spring Receptacle Assembly in

"Unlocked" Position

2) Retain Spring Clip

3) Use Lever to Assist Raising Assembly to

"Locked" Position

Using Tab

WALKER MANUFACTURING COMPANY

Page: 1-12

SERVICE INSTRUCTIONS

July 2006

Deck Leveling - All Models

1. Position mower on a smooth, level surface. Set the cutting height to the highest position - 4 in. (102 mm) - for easy access under the deck to measure blade height.

NOTE: A block of wood cut 4 in. (102 mm) high is a convenient gauge to measure blade height above ground during the leveling process.

WARNING

The machine must be shut off during this procedure.

2. Check the side-to-side level. Rotate each blade sideways and measure the distance from blade tip

to ground on each side. If measurements vary more than 1/8 in. (3 mm), add a washer shim under the deck support pins on the low side to level the deck.

3. Check the front-to-rear level. Rotate the blades to point forward. Measure the distance from blade tip to ground on the front and rear. The rear of the blade should be 1/8 to 1/4 in. (3 to 6 mm) higher than the front of the blade; shim the rear (or front) deck support pins equally to achieve at least 1/8 in. (3 mm) difference.

NOTE: The mower deck and support frame are jig welded; within normal tolerances, very little, if any, shimming should be required to level the deck. Tire pressure will influence the levelness of the deck. Check the tire pressure as a possible cause of the deck not being level.

4 in. (102 mm)

Wood Block

Should not vary more

than 1/8 in. (3 mm)

side-to-side

Should be 1/8 in. (3 mm)

to 1/4 in. (6 mm) higher

at the rear of the blade

4 in. (102 mm)

Wood Block

Deck Leveling

WALKER MANUFACTURING COMPANY

Page: 1-13

PREOPERATING FLUID LEVELS Tractor Fluid Levels

MT MTL MTEFI MTLEFI MC MD MS MW MB

SERVICE INSTRUCTIONS

July 2006

Engine

Crankcase

Oil Level

Hydrostatic

Transmission

Oil Level

Gear Axle Oil

Level

Hydrostatic

Transaxle Oil

Level

(MB, MW)

PTO Gearbox

Oil Level

Radiator

Coolant

Level

10W-30

Approximately 1.85 quarts (1.75 liters)

Always check the level with the dipstick before adding more oil.

Mobil 1 (15W50) Synthetic Oil

1 quart (1 liter)

* NOTE: Mobil 1 (20W50)) Synthetic Oil can be used if (15W50) is not available.

SAE 80W-90 (API GL-5)

N/A

7 to 8 fl. oz. (21 to 24 cl)

50/50

Pre-Mix

Antifreeze

N/A

and water

1.25

Gallons

(4.73 liters)

N/A

Oil level should touch bottom thread of fill hole

SAE E.P. (Extreme Pressure) 80W-90

50/50

Pre-Mix Antifreeze and water

1.25

Gallons

(4.73

liters)

10W-30

3.1 quarts (2.9 liters)

50/50

Pre-Mix Antifreeze and water

1.25

Gallons

(4.73

liters)

10W-30

2.7 pints

(1.3 liters)

SAE E.P. (Extreme

Pressure)

80W-90

5 fl. oz.

(15 cl)

10W-30

1.8 quarts (1.7 liters)

20W50 Motor Oil API of

SL or greater

79 fl. oz. (2.34 liter)

N/A

10W-30

1.5 quarts (1.4 liters)

N/A

Deck Fluid Levels

Use SAE E.P. (Extreme Pressure) 90W oil until the oil level is up to (submerges) the horizontal shaft in the gearbox (shaft parallel to cover plate).

NOTE: In case the gearboxes are completely drained of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is required to refill the gear drive assembly.

NOTE: Since the gearboxes are connected as a unit by connector tubes, it is necessary to add oil slowly . Allow a few minutes after adding oil for the oil to flow throughout the assembly and the oil level to stabilize before reassembly.

IMPORTANT: DO NOT overfill the deck gearboxes. The gearbox assembly is not vented, and overfilling with oil will cause excessive pressure and result in oil leaks.

DSD52 or DSD62 Decks

With the deck in the normal operating position, remove the level plug in the side of the gearcase. Add SAE E.P. (Extreme Pressure) 90W oil to maintain the oil level to the plug.

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Implement Fluid Levels

SERVICE INSTRUCTIONS

July 2006

Gearbox Oil Level

Perfaerator Rotary Broom

80W-90

15 oz. (44.36 cl)

Two-Stage

Snowblower

SAE E.P.

(Extreme Pressure) 80W-90

5 fl. oz. (15 cl)

SB36 Snowblower

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SERVICE INSTRUCTIONS

July 2006

Implement Assembly SETUP INSTRUCTIONS

Perfaerator

The PERFAERAT OR™ is shipped partially assembled. After uncrating, initial setup is required.

NOTE: During the process of unpacking, any damaged or missing parts should be noted and reported to the delivering carrier immediately (put in writing within 15 days). The carrier will provide directions for proceeding with a claim to receive compensation for damage.

Lift Lever Installation

The lift lever for the camshaft assembly position is partially assembled. Stand the lift lever upright and attach the remaining hardware.

Mounting

Tubes

Attach Aerator to Tractor

3. Engage the aerator frame tube socket s on the tractor support arms. Slide the implement hitch onto the support arms approximately 3 in. (76 mm).

Lift Lever

Install Lift Lever Handle

(stand upright and insert hardware)

Installation on Tractor

1. Remove the mower deck from the tractor if necessary. Refer to the appropriate Tractor Owner's Manual.

Only use PTO U-Joint

Tube P/N 7275-15

(9.06" OAL)

Connect Driveline Coupler to Tractor PTO

4. Connect the aerator driveline to the tractor PTO shaft by sliding back the locking collar on the yoke, then push the yoke over the PTO shaft until the locking collar snaps back fully. Make sure the driveline is well secured at both ends.

DANGER

This shaft turns at very high RPM. If the collar is not locked to the PTO shaf t at t he tractor end, or if the yoke at the aerator end is not secured properly, the driveline can fly loose with great force capable of causing serious injury or death.

2. Lightly grease each tractor support arm (2) on the tractor.

5. Install the hitch pin through the hole on the end of each support arm to lock the hitch in place. T wo (2) hitch pins are included in the owner’s packet of materials.

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SERVICE INSTRUCTIONS

July 2006

Implements

Walker Implements are shipped partially assembled. After uncrating the implement adaptor and/or implement(s), initial setup is required.

IMPLEMENT HITCH Implement Hitch Installation

1. Remove the mower deck from the tractor if necessary. Refer to the appropriate Tractor Owner’s Manual.

2. Lightly grease each tractor support arm (2) on the tractor. Refer to Implement Hitch Installation photo for location of tractor support arms.

3. Engage the hitch frame tube sockets on the tractor support arms. Slide the implement hitch onto the support arms approximately 3 in. (76 mm).

4. Install the hitch pin through the hole on the end of each support arm to lock the hitch in place. T wo (2) hitch pins are included in the owner’s packet of materials.

IMPORTANT: If the tractor body needs to be raised, the PTO shield must be in the closed or

down position and the implement must be in the lowered position. The only time the PTO shield

needs to be open or raised is when connecting or disconnecting the driveline for the rotary broom, snowblower, or debr is blo wer.

Hitch Pins Lock Hitch on Support Arms

PTO Shield

in CLOSED

Position

PTO Shield in CLOSED Position

5. Loosen the 3/4-10 jam nut on the end of th e implement Hitch. Adjust the 3/4-10 x 2 in. hex bolt until deck support arms are parallel with ground. Securely tighten the 3/4-10 jam nut to prevent the bolt from moving.

Grease Tractor

Support Arms

Hitch Frame

Tube Sockets

Implement Hitch Installation

3/4 - 10 x 2"

Hex Bolt

Implement Hitch Jam Nut Adjustment

IMPORTANT: This adjustment will need to be

made only once if the same tractor and hitch are used together. If the hitch will be used on more than one tractor, this adjustment will be required every time the hitch is mounted on a different tractor.

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3/4 - 10

Jam Nut

SERVICE INSTRUCTIONS

July 2006

Implement Hitch Wiring

1. Drill five (5) 13/64 in. (5 mm) diameter holes in the tractor, two in the FSC lever and three in the body, as shown in the illustration.

Drill Holes for Implement Hitch Wiring

2. Attach the toggle switch mounting bracket on the FSC lever using two (2) 10-24 x 1/2 in. bolts and Keps nuts.

Mounting

Bracket

4. Attach the toggle switch to the mounting bracket, placing the switch terminals toward the front of the mower.

Mounting Bracket

Wiring Clamps

Switch

Terminals

Attach Wiring Harness and Toggle Switch

5. On Models MC, MDD/MDG, and MT, connect the harness red wire to the load side of the circuit breaker mounted on the bracket behind the battery . Connect the gree n ground wire to the chassis ground bolt.

Harness

Wiring

Harness

Ground

Wire

Attach Toggle Switch Mounting Bracket

3. Install the wiring harness to the tractor body using the three wiring clamps, three 10-24 x 3/8 in. bolts and Keps nuts.

Red Wire

Circuit Breaker

Connect Harness Wire to Circuit Breaker

IMPORTANT: For all 1987-1997 Model MC trac-

tors (with Kohler Magnum engine), connect the harness red wire to the free connector of the PTO clutch switch red wire. Refer to Implement Hitch Wiring Diagram illustration.

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SERVICE INSTRUCTIONS

July 2006

6. Complete the wiring by connecting the wiring harness ends to the toggle switch and to the actuator motor of the implement hitch.

Wire Harness

Connector

Complete Implement Hitch Wiring

7. Move the implement lift switch backward to raise the implement hitch to the UP position.

8. Move the implement lift switch forward to lower the implement hitch to the DOWN position.

9. Raise and lower the hitch a few times to check the operation and make sure it moves smoothly. If not, make sure the wiring harness ends are connected properly and securely. Refer to Implement Hitch Wiring Diagram illustration.

Actuator Motor

Connector

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SERVICE INSTRUCTIONS

July 2006

Implement Hitch Wiring Diagram

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

DOZER BLADE Dozer Blade Assembly

1. Insert the female quick hitch into the hitch box on the blade attachment.

2. Align the single hole at the end of the female quick hitch with the single hole in the hitch box and insert the pivot pin through both holes. Secure the pivot pin on the underside with a 1/4 x 1 in. roll pin.

Hitch Box

Pivot Pin

Female

Quick Hitch

Align Holes

Roll Pin

Insert Female Hitch into Blade Attachment

Nut

Eyebolt

Welded Tab

Attach Spring to Blade Assembly

5. Insert a 3/16 x 1 in. split spring pin into the angle adjustment pin.

6. Rotate the female quick hitch to obtain the re quired blade angle. Align the hole in the center of the female quick hitch with one of the five (5) holes in the hitch box, and insert the angle adjustment pin through the top and bottom holes.

Angle Adjustment Hole(s)Angle Adjustment

Spring

3. Hook one end of the spring onto the welded t ab on the hitch box. Hook the eyebolt onto the free end of the spring.

4. Insert the eyebolt up through the hole in the upper bend of the blade and secure it with a flat washer and nut. Adjust the length of the eyebolt according to the amount of spring tension required for safe operation. [Normally about 1/2 in. (13mm) of thread should protrude beyond the nut.]

Female Quick

Hitch

Rotate Female Quick Hitch

For Required Blade Angle

Insert Adjustment Pin and Set Blade Angle

7. Install the two (2) skid shoes in the two brackets on the rear outer edges of the blade.

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SERVICE INSTRUCTIONS

July 2006

8. Adjust the skid shoes to allow the required clearance under the blade. Install a skid shoe pin in each shoe and lock in place with a 4 mm x 80 mm hairpin. Refer to ADJUSTMENTS of Dozer Blade Skid Shoes in the Service Procedures Section.

Skid Shoe

Bracket

Hairpin

Skid Shoe

Install Skid Shoes

9. Install the trip spring lockout bracket in the upper hole behind the blade using the lockout pin and hairpin.

Hairpin

Lockout Pin

in Upper Hole

Linchpin

Male Quick

Hitch

Hitch Locking

Lever

Attach Blade to Tractor

2. To install the optional tire chains: a. Remove the tractor wheels. b. Attach the tire chains to the wheels. c. Place the wheel spacer plates on the lug

bolts. The wheel spacer plates provide clearance for the chains between the tires and the tractor body.

d. Place the wheels back on the tractor.

Female

Hitch

Trip Spring

Lockout Bracket

Install Trip Spring Lockout Bracket

Dozer Blade Installation

1. Insert the male quick hitch section of the implement hitch into the female hitch of the blade. Lock in place by moving the hitch locking lever fully for- ward to the LOCKED position. Secure the male quick hitch latch with the linchpin.

e. Reinstall and tighten the lug bolts.

ROTARY BROOM Rotary Boom Installation

1. Insert a parking stand into each stand support bracket from the underside. Install a 5/32 x 1-1/4 in. cotter pin in the upper hole of each parking stand. Set the parking stands in their most ex- tended position and secure each stand with a 4 mm x 80 mm hairpin.

2. Check the pivot lock pin and make sure it is in the innermost position to prevent bulking of the female hitch member, and to facilitate quick hitch attachment.

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SERVICE INSTRUCTIONS

July 2006

St and Support

Bracket

Hairpin

Parking Stand

Prepare Rotary Broom for Installation

3. Attach the female broom driveline half (with quick connect yoke) over the male broom driveline half. Set the driveline on its support.

NOTE: Driveline sliding surfaces must be greased.

Reduction

Shaft

Male Quick

Hitch

Hitch Locking

Lever

Attach Broom to Implement Hitch

5. Connect the broom driveline to the tractor PTO shaft by sliding back the locking collar on the yoke, then push the yoke over the PTO shaft until the locking collar snaps back fully. Make sure the driveline is well secured at both ends.

Female Hitch

Drive Shaft

Yoke

Assemble Rotary Broom Driveline

4. Insert the male quick hitch section of the implement hitch into the female quick hitch of the rotary broom and place the male quick hitch lever fully forward to the LOCKED position. Secure the male quick hitch latch with the linchpin.

DANGER

This shaft turns at very high RPM. If the collar is not locked to the PTO sha ft at t he tractor end, or if the yoke at the broom end is not secured properly, the driveline can fly loose with great force capable of causing serious injury or death.

PTO Shaft

Locking Collar

Yoke

Connect Broom Driveline to Tractor PTO Shaft

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SERVICE INSTRUCTIONS

July 2006

6. Remove the hairpin from the welded sleeve on the right hand side of the broom mounting bracket. Carefully pull out the stopper pin to its most ex- tended position and lock in place with the hairpin.

Welded Sleeve

Hairpin

Stopper Pin

Lock Stopper Pin in Place

8. Retract the parking stands and secure with the hairpins prior to operation.

9. To install the optional tire chains: a. Remove the tractor wheels. b. Attach the tire chains to the wheels. c. Place the wheel spacer plates on the lug

bolts. The wheel spacer plates provide clearance for the chains between the tires and the

tractor body. d. Place the wheels back on the tractor. e. Reinstall and tighten the lug bolts.

10. For GHS (Grass Handling System) equipped Walker tractors, install a blower intake cover in the blower intake tube. The cover “u nloads” the blower and seals the intake to effectively eliminate power loss and noise when the blower is not being used.

Blower Intake

Cover

NOTE: The pin in the innermost position is used to prevent the female hitch on the b room from being pulled up by the brush ground contact adjustment spring, thus facilitating mounting and dismounting of the broom.

7. Adjust brush ground contact by threading knob.

Ground Contact Knob

Adjust Brush to Ground Contact

GHS Blower Intake Cover

11. For stability of the tractor when transporting with the rotary broom in raised position, approximately 80 lb (36 kg) of counterweight should be installed on the tail of the tractor. Optional tail weights for the various tractor models are available from your Walker dealer or a sandbag or similar weight may be used.

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SERVICE INSTRUCTIONS

July 2006

Optional Gauge Wheel Installation

NOTE: Gauge wheels are required for lawn work

or heavy loads.

This adjustment is required for lawn thatching or leaf raking operations. Height is adjusted by removing pin and adjusting broom height to correct position. Adjust height according to type of application.

Hand

Guard

Lock Pin

Gauge

Wheel

Optional Gauge Wheel Installation

TWO-STAGE SNOWBLOWER Snowblower Assembly

1. Install the hand guard on the chute, with the top section inside the chute and the bottom section outside the chute base ring. Place two (2) 1/4 x 3/ 4 in. bolts through the chute and the hand guard. Secure with a flat washer, lock washer, and nut. Position the bolt with the head on the outside of the chute and the nut on the inside. Torque both bolt s to 10 ft-lb. (13.6 N·m).

Chute Base

Ring

Install Hand Guard on Chute

2. Remove the bushing support from the chute base lip and discard the existing bolt (refer to Install Ro- tation Worm Assembly photo).

3. Place the plastic anti-friction insert over the chute base (placing the nipple on the upper side towards the center of the fan housing). Only one position provides a perfect fit. Apply grease on top of the insert where it will contact the chute base.

Apply Grease

Nipple

Install Plastic Insert over Chute Base Lip

4. Insert the 1-5/16 in. (33 mm ) plastic bushing into the tube weldment.

5. Insert the 1-11/16 in. (43 mm) plastic bushing into the bushing support and place this over the shaft on the rotation worm.

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SERVICE INSTRUCTIONS

July 2006

6. Install the rotation worm assembly through the tube weldment with the attaching plate of the support on the underside of the chute base lip.

Tube

Weldment

Rotation

Worm

Bushing Support

With Attaching Plate

Install Rota tion Worm Assembly

7. Install the chute over the plastic insert and secure with four retaining plates, using two (2) 1/4 x 1/2 in. bolts, lock washers, and nuts in each of the three (3) standard retaining plates, and two (2) 1/4 x 3/4 in. bolts, lock washers and nuts in the rear rig ht retaining plate which also secures the support. Torque all bolts to 10 ft-lb. (13.6 N·m).

Bushing

8. Insert two (2) 5/16 x 1 in. carriage bolts through each of the skid shoes from inside the bend. Place a flat washer, lock washer, and nut loosely on each bolt and place the bolt heads through the round holes in the outer ends of the bottom angle of the snowblower body. Adjust the skid shoes to allow the required clearance under the cutting edge. Slide the square shank portion of the bolt head into the slot and torque to 19 ft-lb (25.8 N·m). Refer to

ADJUSTMENTS of T wo-Stage Snowblower Skid Shoes in Maintenance Instructions.

Snowblower

Housing

Skid Shoe

Carriage Bolts

Chute

Retaining

Plate

Install Chute over Plastic Insert

Install Skid Shoes

Snowblower Installation

1. Thoroughly clean the drive shaft yoke and in st all a 1/4 x 1/4 x 1-1/4 in. key in the reduction shaft keyway.

2. Slide the drive shaft yoke over the reduction shaft.

3. Secure the yoke to the reduction sha ft with a 1/4 x 2-1/2 in. bolt and nylon locknut. Tighten the nut and the 3/8 x 3/8 in. allen set screw securely over the key in the yoke.

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SERVICE INSTRUCTIONS

July 2006

Keyway

1/4 x 1/4 x

1-1/4 in. Key

Drive

Shaft Yoke

Set Screw

Reduction

Shaft

Attach Drive Shaft Yoke to Reduction Shaft

4. Install one 1/4 x 7-1/2 in. bolt through the upper set of holes in the reduction box and secure loosely with a lock washer and nut.

Install Bolt

6. Attach the female portion of the hitch to the snowblower using one 3/8 x 1 in. bolt in the upper hole of each side, placing the bolt head on the outside, with a flat washer, lock washer, and nut on the inside. Use one 1/2 x 1 in. bolt, lock washer and nut in the bottom hole of each side. Tighten all four (4) bolts securely.

Bolt Heads On

Outside of Hitch

Female

Hitch

Reduction

Box

Install Bolt in Reduction Box

5. Hook the reduction box cover over the bolt and secure the cover with a second 1/4 x 7-1/2 in. bolt, lock washer, an d nut through the lower set of holes in the reduction box. Torque both bolts to 10 ft-lb (13.6 N·m).

Reduction

Box Cover

Bolt

Mount Female Hitch to Snowblower

7. Insert the male quick hitch section of the implement hitch into the female hitch of the snowblower and lock in place by moving the hitch locking lever fully forward to the LOCKED position. Secure the latch with the linchpin.

8. Grease the drive shaft sliding surfaces and slide the male shaft inside the female tube.

Female

Hitch

Male Quick

Hitch

Hitch Locking

Lever

Attach Snowblower to Implement Hitch

Install Reduction Box Cover

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SERVICE INSTRUCTIONS

9. Attach the driveline quick lock coupler to the tractor PTO.

WARNING

This shaft turns at hig h RPM. If the co llar is not locked to the shaft at the tractor end, or if the yoke at the blower end is not secured properly, the drive shaft can fly loose with great force, capa ble of causing serious injury or death.

July 2006

Rotation

Handle

Insert Rotation Handle into Rotation Worm

13. To install the optional tire chains: a. Remove the tractor wheels.

Driveline Coupler

Tractor PTO

Connect Driveline Coupler to Tractor PTO

10. Attach the parallel bar to the female hitch and the implement adaptor using the two clevises and spring clips.

Clevis

Parallel Bar

Clevis

b. Attach the tire chains to the wheels. c. Place the wheel spacer plates on the lug

bolts. The wheel spacer plates provide clearance for the chains between the tires and the

tractor body. d. Place the wheels back on the tractor. e. Reinstall and tighten the lug bolts.

14. For GHS (Grass Handling System) equipped Walker tractors, install a blower intake cover in the blower intake tube. The cover “u nloads” the blower and seals the intake to effectively eliminate power loss and noise when the blower is not being used. Refer to GHS Blower Intake Cover illustration for ROTARY BROOM in this section.

15. For stability of the tractor when transporting with the snowblower in raised position , approximately 80 lb (36 kg) of counterweight should be installed on the tail of the tractor. Optional tail weights for the various tractor models are available from your Walker dealer or a sandbag or similar weight may be used.

Attach Parallel Bar to Female Hitch

11. Insert the rotation handle into the rotation worm. Align the holes and lock in place with a 1/4 x 1 in. socket head cap screw and nylon locknut.

12. Install the plastic handle grip on the chute rotation handle.

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SERVICE INSTRUCTIONS

July 2006

DEBRIS BLOWER Debris Blower Installation

The debris blower is shipped completely assembled except for the driveline, which must be connected to the input shaft.

1. Remove the belt guard from the debris blower housing by removing the two (2) cover pins and hairpins securing it to the housing.

2. Thoroughly clean the debris blower input shaf t and install a 1/4 x 1/4 x 1-1/4 in. key in the input shaft keyway.

3. Thoroughly clean the inside of the tractor PTO shaft and align the PTO shaft keyway with the key in the input shaft keyway.

Linchpin

Hitch Locking

Lever

Female

Quick Hitch

Attach Debris Blower to Implement Hitch

7. To install the optional tire chains: a. Remove the tractor wheels.

4. Secure the PTO shaf t to the input shaft with a 1/4 x 2-1/2 in. bolt and nylon locknut. Tighten the locknut and the set screw over the key.

Shear

bolt

Attach Tractor PTO to Debris Blower Input Shaft

5. Reinstall the belt guard by reversing the removal procedure.

6. Insert the male quick hitch section of the implement hitch into the female hitch of the debris blower and lock in place by moving the hitch locking lever fully forward to the LOCKED position. Secure the latch with the linchpin.

Set Screw

Tractor

PTO

b. Attach the tire chains to the wheels. c. Place the wheel spacer plates on the lug

bolts. The wheel spacer plates provide clearance for the chains between the tires and the

tractor body. d. Place the wheels back on the tractor. e. Reinstall and tighten the lug bolts.

8. For GHS (Grass Handling System) equipped Walker tractors, install a blower intake cover in the blower intake tube. The cover “u nloads” the blower and seals the intake to effectively eliminate power loss and noise when the blower is not being used. Refer to GHS Blower Intake Cover illustration for ROTARY BROOM in this section.

9. For stability of the tractor when transporting with the debris blower in raised position, approximately 80 lb (36 kg) of counterweight should be installed on the tail of the tractor. Optional tail weights for the various tractor models are available from your Walker dealer or a sandbag or similar weight may be used.

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SERVICE INSTRUCTIONS

July 2006

SB36 Snowblower

Model MS, MC, MD, MT, MTL, MTEFI

1. Remove the mower deck from the tractor if necessary. Refer to the appropriate Tractor Owner’s Manual.

2. Attach each of the lift brackets to the predrilled holes on the front chassis cross bar with a 5/16-18 x 1 in. bolt and a Whiz locknut. The locknuts should be

on the front sides of the lift brackets. Refer to Lift Bracket Installation illustration. The RH

bracket is attached using the existing battery pan mount bolt on newer models. On earlier models, obtain the 5/16-18 x 1 in. bolt and nut locally to attach the RH bracket.

NOTE: Predrilled holes exist only on Walker tractors built after 1984. For earlier models, drill two 5/16 in. (8 mm) holes in the front chassis cross bar at the positions indicated in the Lift Bracket

Installation illustration. IMPORTANT: For all 1980 to 1984 tractors,

remove the battery before drilling the RH hole.

Reinstall the battery after the lift brackets have been installed. Refer to Battery Installation in Battery Service in this section for battery installation procedures.

3/4 in. (19 mm)

Tractor Front

Chassis Cross Bar

Whiz Locknut Lift Bracket

5 in.

(127 mm)

Drill Two 5/16 in.

(8 mm) Holes

On Newer Models, Use Battery Pan Mounting Bolt to Attach RH Bracket

5 in.

(127 mm)

5/16-18 x 1 in. Bolt

Lift Bracket Installation

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SERVICE INSTRUCTIONS

July 2006

Model MB

1. Remove the mower deck from the tractor if necessary. Refer to the appropriate Tractor Owner’s Manual.

2. Raise tractor body and use prop to hold body up. Install lift plate and backing plates, as showin in parts breakdown. Refer to Lift Plate Installation illustration.

F009

NOTE: Predrilled holes exist only on Walker tractors built after model beginning S/N 2006-8780. For earlier models, measure and drill four 5/16 in. (8 mm) holes in the front chassis at the positions indicated in the Lift Plate Installation illustration.

IMPORTANT: For all tractors before S/N 20068780, remove the battery before drilling the LH hole. Reinstall the battery after the lift plate has been installed. Refer to Battery Installation in Battery Service in this section for battery installation procedures.

F226

1-1/16"

This dimension is from the

outside of the chassis.

Ø 5/16" (4 TYP.)

5" 7-1/2" 5"

2-1/16"

Lift Plate Installation

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SERVICE INSTRUCTIONS

July 2006

Model MS, MB, MC, MD, MT, MTL, MTEFI

3. Remove the PTO cover (between the footrests). Remove the shipping wire from the counterweight springs, place the lift handle in the UP (back) position, and hook the counterweight springs onto the hook tabs on the frame. The tabs are located below the right angle gearbox and drive shaf t (refer to Counterweight Spring Hook Tab Locations photo).

Remove PTO Co ver Before Attaching Springs To Frame

Spring Hook Tabs

b. Insert the two (2) 1/4-20 x 1-3/4 bolts in the

rotation stopper, the spacer rings and through the remaining holes of the rear and right hand side retaining plates and secure in place with two (2) 1/4-20 nuts. Tighten the nuts firmly.

c. Insert one (1) grommet in rotation support

and one (1) grommet in handle support, mount handle support and rotation handle to blower using two (2) 1/4-20 x 1/2 bolts and two (2) 1/4-20 flanged nuts.

d. Install 1/2” plastic handle on rotation handle.

5. Lightly grease the tractor support arms.

6. Engage the snowblower mounting tubes on the tractor support arms.

Support Arms

Counterweight Spring Hook

Tab Locations (bottom view)

4. Install the spout assembly.

Spout Discharge

Guard

(not shown)

Install Spout Assembly

a. Place the chute on the chute base and align

the holes of the three (3) retaining plates with the holes in the chute base. Attach the rear and right hand side retaining plates with one (1) 1/4-20 x 1/2 bolt in the forw ard most hole and the front retaining plate with two (2) 1/4-20 x 1/2 bolts and secure with four (4) 1/4-20 flange nuts.

Mounting Tubes

Engage Snowblower Mounting Tubes

with Tractor Support Arms

7. Slide the snowblower onto the tractor suppor t arms and connect the snowblower PTO shaf t to the tractor with the PTO quick coupler as follows:

NOTE: Model MS and earlier Model MC do not have the PTO quick coupler. Use sliding joint to connect tractor to snowblower PTO.

a. Place the pilot end of the snowblower PTO

shaft into the socket of the PTO quick coupler and rotate the PTO shaf t until it is aligned correctly with the socket in the PTO quick coupler, then slide together. Use arrows on the shaft and tube for correct alignment.

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SERVICE INSTRUCTIONS

July 2006

PTO Shaf t

Pilot End

Arrows

PTO Coupler

Spline Connection

To Tractor

Align PTO Shaft and PTO Coupler

(shown before engaging snowblower mounting

tubes with tractor support arms)

b. Slide snowblower assembly onto tractor.

Reaching under the tractor, pull the ring back on the PTO quick coupler, slide the coupler onto the tractor spline shaft, and r elease the coupler ring.

IMPORTANT: To prevent damage to the machine, make sure the PTO quick coupler is securely locked on the tractor, with the locking balls fully seated in the groove and the ring in the full forward position (refer to the Coupler Ring “Locked” Position photo). After installation, pull on the shaft to check for security.

Spring-Loaded Coupler Ring

In Full Forward Position

Coupler Ring “Locked” Position

8. Insert the hitch pins in the en ds o f the trac tor su pport arms.

9. Pull the lift handle back, press the foot trigger, and push the snowblower lift handle forward against the spring pressure into the DOWN ( forward) position. Attach each of the lift chains to the lift brackets with a 5/16-18 x 1-1/4 in. bolt and an ESNA nut.

NOTE: Use a bungee cord or strap to secure lift handle in forward position while connecting lift chains to tractor.

10. Reinstall the PTO cover.

Lift Bracket

Pull Back Spring-Loaded

Coupler Ring

Installing PTO Quick Coupler

Lift Chain

Hitch Pin

Attach Lift Chains to Lift Brackets

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SERVICE INSTRUCTIONS

July 2006

11. Pull the lift ha nd le back to r aise the sn owblo wer to the UP position.

Pull Back

Lift Handle

Snowblower in UP (Raised) Position

12. Pull the lift handle back, press the foot trigger, and

hold on to the lift handle while letting it move forward to lower the snowblower to the DOWN po-

sition.

DO NOT release the lift handle before releasing the foot trigger or before the snowblower has reached the DOWN position.

CAUTION

13. Raise and lower the snowblower a few times to check the operation and make sure it moves smoothly . If not, grease the lift handle pivot grea se fittings located on the three tubes that support the lift handle pivot.

14. Adjust the gauge wheels or skid shoes. Refer to

ADJUSTMENTS of Gauge Wheels or Skid Shoes in Service Procedures Section.

15. To install the optional tire chains: a. Remove the tractor wheels. b. Attach the tire chains to the wheels. c. Place the wheel spacer plates on the lug

bolts. The wheel spacer plates provide clearance for the chains between the tires and the

tractor body. d. Place the wheels back on the tractor. e. Reinstall and tighten the lug bolts.

16. For GHS (Grass Handling System) equipped Walker tractors, install a blower intake cover in the blower intake tube. The cover “u nloads” the blower and seals the intake to effectively eliminate power loss and noise when the blower is not being used.

Snowblower in DOWN (Lowered) Position

Move Lift

Handle Forward

WALKER MANUFACTURING COMPANY

Page: 1-34

Intake Cover

17. For stability of the tractor when transporting with the snowblower raised position, approximately 80 lb (36 kg) of counterweight should be installed on the tail of the tractor. Optional tail weights for the various tractor models are available from your Walker dealer or a sandbag or similar weight may be used.

Blower

GHS Blower Intake Cover

SERVICE INSTRUCTIONS

July 2006

SECTION 2

Lubrication

Contents of this Section

SUBJECT P AGE

LUBRICATION - TRACTORS ........................................................................... 2-3

Engine Oil - All Models..................... ... ... ... ... .... ... ... ... .... ... ... ... .... ... .....................2-3

Engine Break-In Oil .....................................................................................2-3

Checking Engine Crankcase Oil Level -

Model MW, MB, MC, MD, MT, MTL, MTEFI ...............................................2-3

Checking Engine Crankcase Oil Level - Model MS ....................................2-4

Changing Engine Crankcase Oil/Oil Filter - All Models ...............................2-5

Mower Deck Gearbox Lubrication - All Models ..................................................2-8

DSD52 or DSD62 Mower Deck Lubrication........................................................2-9

Tractor PTO Gearbox Lubrication - Model MC, MD, MT, MTL, MTEFI............2-10

Checking Gearbox Oil Level .....................................................................2-10

Changing Gearbox Oil ...............................................................................2-10

Tractor PTO Gearbox Lubrication - Model MS.................................................2-11

Tractor PTO Gearbox Lubrication - Model MW................................................2-11

Checking Gearbox Oil Level .....................................................................2-11

Transaxle Lubrication - Model MW...................................................................2-11

Transaxle Lubrication - Model MB....................................................................2-12

Changing Gearbox Oil ...............................................................................2-12

Steering Linkage and PTO Linkage Lubrication - Model MW...........................2-13

Gear Axle Lubrication - Model MS, MC, MD, MT ................... .... ... ... ... ... .... ... ...2-13

Hydrostatic Transmission Fluid - Model MS, MC, MD, MT...............................2-13

Checking Hydrostatic Transmission Fluid Level .......................................2-13

Changing Hydrostatic Transmission Fluid - Model MS, MC, MD, MT .......2-14

Grease Fitting and Oil Point Lubrication - All Models.......................................2-15

LUBRICATION - IMPLEMENTS.................................................... ... ... ............ 2-15

Grease Fitting and Oil Point Lubrication...........................................................2-15

Gearbox............................................................................................................2-15

Drive Chain...................... ....................................... ... .... ... ... ... .... ... ...................2-15

Lifting Mechanism......... ... .... ... ... ... .... ... ... ..........................................................2-16

Camshaft Drive System....................................................................................2-16

PTO U-Joint................................................................................................ ... ...2-16

Rotary Broom Gearbox.............. ... .... ... ... ... .......................................................2-16

Rotary Broom Drive Chain......... ... .... ... ... ... .......................................... ... .... ... ...2-17

Two-Stage Snowblower Gearbox..................... ... ... ... .... ... ... ... .... ... ... ... ... .... ... ...2-17

Two-Stage Snowblower Reduction Chain........................................................2-18

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Grease Fitting and Oil Point Lubrication...........................................................2-18

PTO U-Joint................................................................................................ ... ...2-18

Gearbox Lubrication .........................................................................................2-18

Drive Chain Lubrication .................... ... .............................................................2-19

Lubrication Points - MT, MTL, MTEFI, MTLEFI................................................2-20

Lubrication Points - MD ....................................................................................2-22

Lubrication Points - MC ....................................................................................2-24

Lubrication Points - MS ....................................................................................2-26

Lubrication Points - MW ...................................................................................2-28

Lubrication Points - MB (Start S/N 2004-68441) ..............................................2-30

Lubrication Points - MB (Start S/N 2007-85248) ..............................................2-32

Lubrication Points - Perfaerator........................................................................2-34

Lubrication Points - Implement Hitch................................................................2-36

Lubrication Points - Dozer Blade......................................................................2-38

Lubrication Points - Rotary Broom....................................................................2-40

Lubrication Points - Two-Stage Snowblower....................................................2-42

Lubrication Points - Debris Blower ...................................................................2-44

Lubrication Points - SB36 Snowblower ............................................................2-46

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

LUBRICATION - TRACTORS

WARNING

DO NOT attempt to lubricate the machine with the engine running. Disengage the PTO clutch, shut off the machine, and remove the ignition key.

Proper lubrication is an important maintenance procedure. It reduces wear and makes the machine quieter and easier to operate.

Engine Oil - All Models

Engine Break-In Oil

Model MW, MC, MT, MTL, MTEFI

No special break-in oil is required. The engine is serviced with 10W-30, Service Class SG oil from the factory. Change the oil after the initial engine break-in

period of 5 hours. Thereafter, change oil after every 100 hours of operation or more often in extremely

dusty or dirty conditions (200 hour interval for MTL).

Model MD

No special break-in oil is required. The engine is serviced with 10W-30, Service Class SG oil from the factory. Change the oil after the initial engine break-in

period of 35 hours. Thereafter , change oil af ter every 100 hours of operation.

Model MS

No special break-in oil is required. The engine is serviced with 10W-30, Service Class SG oil from the factory. The oil should be changed after the initial engine

break-in period of 8 hours. Thereafter, change oil af- ter every 50 hours of operation.

Model MB

No special break-in oil is required. The engine is serviced with 10W-30, Service Class SG oil from the factory. The oil should be changed after the initial engine

break-in period of 5-8 hours. Thereafter, change oil after every 50 hours of operation.

Checking Engine Crankcase Oil Level - Model MW, MB, MC, MD, MT, MTL, MTEFI

Model MB, MC, MT, MTL, MTEFI

Check the engine crankcase oil level before use and after each 8 hours of continuous operation.

Model MW, MD

Check the engine crankcase oil level before use and after each 5 hours of continuous operation.

Model MW, MB, MC, MD, MT, MTL, MTEFI

IMPORTANT: The importance of checking and maintaining the proper crankcase oil level cannot be overemphasized. Check the oil level BEFORE EACH USE.

1. Park the mower on a level surface with the en- gine stopped. Also, make sure the engine is cool and oil has had time to drain into the sump [allow at

least five (5) minutes after stopping the engine]. IMPORTANT: NEVER check or add oil with the

engine running.

2. Before removing the dipstick, clean the area around the dipstick to keep any dirt or debris out of the engine.

Model MW, MC, MT, MTL, MTEFI

3. Remove the dipstick, wipe off with a clean rag, then reinsert the dipstick into the tube without

screwing it in.

Model MB, MD

3. Remove the dipstick, wipe off with a clean rag, then reinsert the dipstick into the tube and press all the way down.

Model MW, MB, MC, MD, MT, MTL, MTEFI

4. Remove the dipstick again and check the oil level on the dipstick. The oil level should be within the “Operating Range” on the dipstick (between the “L” mark and the “F” mark).

IMPORTANT: DO NOT operate engine without a sufficient oil supply in the crankcase. DO NOT operate with the oil level below the “L” mark or above the “F” mark on the dipstick.

5. If additional oil is needed, refer to Specifications for proper crankcase lubricant. Fill up to, but not

above, the “F” mark on the dipstick.

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SERVICE INSTRUCTIONS

July 2006

IMPORTANT: DO NOT overfill the crankcase (oil

above “F” mark) as this CAN result in engine overheating, loss of power, and possible engine damage.

Full Mark

Operating

Range

{

FULL

Mark

LOW

Mark

Low Mark

Dipstick Operating Range Model MC, MT, MTL, MTEFI

Upper Mark

Lower Mark

Dipstick Operating Range - Model MD

Dipstick Operating Range - Model MB

Checking Engine Crankcase Oil Level - Model MS

Check the engine crankcase oil level before use and

after each 5 hours of continuous operatio n. IMPORTANT: The importance of checking and main-

taining the proper crankcase oil level cannot be overemphasized. Check the oil level BEFORE EACH USE.

1. Park the mower on a level surface with the en- gine stopped. Also, make sure the engine is cool and oil has had time to drain into the sump [allow at

least five (5) minutes after stopping the engine]. IMPORTANT: NEVER check or add oil with the

engine running.

2. Before removing the dipstick, clean the area around the dipstick opening in the engine block to keep any dirt or debris out of the engine.

3. Unscrew and remove the filler plug/dipstick and wipe off with a clean rag. Insert dipstick into filler hole but DO NOT screw it in to check the oil level. Remove the dipstick and check the level. The oil level should be within the safe range (between the

H and L marks on the dipstick). IMPORTANT: DO NOT operate engine without

sufficient oil supply in the crankcase. DO NOT operate with oil level below the LOW (L) mark or above the FULL (H) mark on the dipstick.

WALKER MANUFACTURING COMPANY

Page: 2-4

NOT SCREWED IN

Dipstick Position

for Checking Oil Level

SERVICE INSTRUCTIONS

July 2006

Changing Engine Crankcase Oil/Oil Filter - All Models

Filler Plug

FULL (H) Mark LOW (L) Mark

Model MC, MT, MTL, MTEFI

For Model MT, MTEFI, and MC, change the engine crankcase oil after every 100 hours of operation and replace the oil filter every other oil change (every 200 hours of operation).

For Model MTL, change the engine crankcase oil after every 200 hours of operation and replace the oil filter at the same time.

Model MD

Change the engine crankcase oil after every 100 hours of operation and replace the oil filter every other oil change (every 200 hours of operation).

Model MS, MB

Change the engine crankcase oil after ever y 50 hours of operation and the oil filter after every 100 hours of operation as follows:

FULL (H)

Mark

LOW (L)

Mark

Dipstick Operating Range

4. If additional oil is needed, refer to Specifications for proper crankcase lubricant. Fill to the FULL

(H) mark. IMPORTANT: DO NOT overfill crankcase [oil

above FULL (H) level] as this CAN result in engine overheating, loss of power, and possible engine damage.

Model MW

Change the engine crankcase oil after every 100 hours of operation and replace the oil filter every other

oil change (every 200 hours of operation or more often in extremely dusty or dirty conditions).

All Models

1. Park the mower on a level surface with the engine stopped. The engine oil should be warm be-

fore draining. If not warm from operation, start the engine and run a few minutes to warm the oil.

2. Before removing the dipstick, clean the area around it to keep any dirt or debris out of the engine.

Model MS, MB, MC, MD, MT, MTL, MTEFI

3. Remove the dipstick and oil drain plug and drain the oil into a suitable container. Be sure to allow ample time for complete drainage.

Model MW

3. Remove the dipstick, oil fill cap, and unscrew the oil drain plug 4-1/2 revolutions (to prevent the drain plug from coming out completely , do not exceed 41/2 turns). Drain oil into a suitable container. Be sure to allow ample time for complete drainage.

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

Oil Filter

Drain Plug

Oil Drain/Oil Filter Location -

Model MC, MT, MTL, MTEFI (Model MT shown)

July 2006

Oil Fill/

Dipstick

Oil Filter

Oil Drain

Oil Drain, Dipstick (Oil Fill),

and Oil Filter Location - Model MW

Drain Plug

Oil Drain Location

(view from left side of tractor) - Model MD

Oil Filter

Dipstick (Oil Fill)

Oil Drain

Oil Fill

Dipstick

Dipstick and Oil Fill

(view from above left side of tractor) - Model MB

Oil Drain, Dipstick (Oil Fill),

and Oil Filter Locations

(view from lower left side of tractor) - Model MS

Oil Filter

Oil Drain

Oil Drain and Oil Filter Locations

(view from above right side of tractor) - Model MB

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

All Models

4. Before removing the oil filter, clean the area around the filter to keep dirt and debris out of the engine.

Oil Filter

Oil Filter Location - Model MD

5. Remove the old oil filter and wipe off the filter mounting surface on the engine.

6. Apply a thin coating of clean oil to the rubber gasket on the replacement oil filter.

IMPORTANT: Use ONLY oil filters from the engine manufacturer. Aftermarket oil filters may not seal properly and/or may not have the correct pressure relief valve for proper lubrication. Also, for certain models the filter length dimension is critical for

tailwheel clearance.

Model MW, MC, MD, MT, MTL, MTEFI

7. Install the new oil filter on the engine. Turn the filter clockwise until the rubber gasket contacts the sealing surface, then tighten an additional 1/2 turn.

Model MS

8. Reinstall the drain plug. Make sure it is tightened to 16.5 ft-lb (23 N

Model MW

8. Close drain valve.

Model MB

8. Reinstall the drain plug.

Model MC, MT, MTL, MTEFI

9. Fill the crankcase through the oil filler tube (dipstick opening) with new, clean oil. Use only crankcase lubricants recommended by the engine manufacturer. Refer to manual or the engine owner’s manual. Use the recommended oil viscosity for the expected ambient temperature. Oil with the correct viscosity will aid starting in cold weather and assure proper lubrication in hot weather. Fill up to, but not above, the “F” mark on the dipstick. Crankc ase capacity is 1.85 quarts (1.75 liters) plus 1/2 pint (.24 liters) for the new oil filter.

Model MD

9. Fill the crankcase with new, clean oil. Use only crankcase lubricants recommended by the engine manufacturer . Refer to ual or the engine owner’s manual. Use the recommended oil viscosity for the expected ambient temperature. Oil with the correct viscosity will aid starting in cold weather and assure proper lubrication in hot weather . Fill up to, but not above, the upper mark on the dipstick. Crankcase capacity is 3.1 quarts (2.9 liters) plus 1/2 pint (.24 liters) for the new oil filter.

·m).

Specifications in this

Specifications in this man-

7. Install the new oil filter on the engine. Turn the oil filter clockwise until the rubber gasket contacts the sealing surface, then tighten the filter an additional

3/4 turn.

Model MB

7. Install the new oil filter on the engine. Turn the oil filter clockwise until the rubber gasket contacts the sealing surface, then tighten the filter an additional

1/2 to 3/4 turn.

Model MC, MD, MT, MTL, MTEFI

8. Reinstall the drain plug. Make sure it is tightened to 10 ft-lb (13.6 N

·m).

IMPORT ANT : DO NOT use oil that is rated for gasoline engines only (API SE/SF). This will cause problems with a diesel engine.

Model MS

9. Fill the crankcase (through the dipstick opening) with oil using only crankcase lubricants supplied by the engine manufacturer. Refer to Specifica- tions in this manual or the engine owner’s manual. Use the recommended oil viscosity for the expected ambient temperatur e. Oil with the correct viscosity will aid starting in cold weather and assure proper lubrication in hot weather. Fill to FULL (H) mark on the dipstick; crankcase capacity is 2.7 pints (1.3 liters).

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Model MW

1.6 quarts (1.5 liters) plus 0.2 quart (0.2 liters) for the new oil filter.

Model MB

9. Fill the crankcase with new, clean oil. Use only crankcase lubricants recommended by the engine manufacturer . Refer to Specifications in this manu- al or the engine owner’s manual. Use the recommended oil viscosity for the expected ambient temperature. Oil with the correct viscosity will aid starting in cold weather and assure proper lubrication in hot weather. Fill to FULL mark on the dipstick; crankcase capacity is 1.5 quarts (1.4 liters) when changing oil and filter.

Specifications in this man-

Mower Deck Gearbox Lubrication - All Models NOTE: These instructions apply to all mower decks

with gear-driven blades. Refer to DSD52 or DSD62 Mower Deck Lubrication in this section for the DSD52

or DSD62 deck with belt-driven blades.

All Gear Drive Models

The mower deck gearboxes (tee gearbox and blade drive gearboxes) are connected as a unitiz ed assembly, and oil flows freely between them. The gearboxes are permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be checked every 25 hours for indication of an oil leak; particularly the lower seals on the blade drive gearboxes should be inspected, since they operate in a dirty environment. If an oil leak is noted, replace the oil seal and relubricate the gearbox assembly as follows:

1. Remove gearbox cover (footrest). Deck orientation should be the normal operating position.

Blade Drive

Gearboxes

All Models

IMPORTANT: Check the dipstick reading before adding the last 1/2 pint of oil and fill only to the “F” mark. DO NOT overfill the crankcase (oil above “F” mark) as thi s CAN result in engine overheating, loss of power, and possible engine damage.

10. Start the engine and check for oil leaks a round the oil filter. S top the engine, recheck the oil level, and add oil if necessary. (When the engine is first operated with a new oil filter, the oil level drop s slightly as the filter is filled with oil.)

Tee

Gearbox

Mower Deck Gearboxes

(shown with gearbox cover removed for clarity)

2. Clean the area around the individual gearbox cover plates to prevent contaminants from entering the gearcase.

3. Remove the screws securing the cover plates on the blade drive gearboxes.

4. Check the level of lubricant in the gearboxes. If the lubricant is low, add SAE E.P. (Extreme Pressure) 80W-90 gear lube until the level is up to (submerges) the horizontal shaft in the ge arbox (shaf t par allel to cover plate).

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SERVICE INSTRUCTIONS

July 2006

NOTE: In case the gearboxes are completely

drained of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is required to refill the gear drive assembly.

NOTE: Since the gearboxes are connected as a unit by connector tubes, it is necessary to add oil slowly. Allow a few minutes after adding oil for the oil to flow throughout the assembly and the oil level to stabilize before reassembly.

IMPORTANT: DO NOT overfill the deck gearboxes. The gearbox assembly is not vented, and overfilling with oil will cause excessive pressure and result in oil leaks.

5. Check condition of the cover gasket and replace if worn or damaged. Reinstall gearbox cover plates; torque screws to 24 in-lb (2.7 N

DSD52 or DSD62 Mower Deck Lubrication

There are several special lubrication requirements for the DSD52 or DSD62 mower deck in addition to the requirements detailed in the Ch assis and Deck Lubrica-

tion illustration. Lubricate the locations shown in the Blade Spindle Lubrication and Gearbox, Dolly Wheel, and U-Joint Lubrication photos and check

and maintain oil in the belt drive gearbox.

⋅m).

2. Check the oil level in the belt drive gearbox every 100 hours (or sooner if a visible oil leak has devel-

oped). With the deck in the normal operating position, remove the level plug in the side of the gearcase. Add SAE E.P . (Extreme Pressure) 80W90 gear lube to maintain the level to the plug. If the oil level is low, check the gearbox for any indication of an oil leak. If an oil leak is noted, the gearbox will need to be removed and rebuilt.

3. Lubricate the dolly wheel pivot every 25 hours with general purpose grease.

4. Lubricate the U-Joint in the drive shaft every 8 hours with SAE general purpose lithium or molybdenum base grease.

Belt Drive

Gearbox

Dolly Wheel

Pivot

1. Lubricate the blade spindles every 25 hours with two (2) shots of SAE general purpose lithium or molybdenum base grease.

Blade

Spindles

Blade Spindle Lubrication

U-Joint

Gearbox, Dolly Wheel, and U-Joint Lubrication

Belt Drive

Gearbox

Dolly Wheel

Pivot

Gearbox and Dolly Wheel Lubrication

WALKER MANUFACTURING COMPANY

Page: 2-9

SERVICE INSTRUCTIONS

Tractor PTO Gearbox Lubrication - Model MC, MD, MT, MTL, MTEFI

Checking Gearbox Oil Level

July 2006

Jackshaft

Check the gearbox oil level every 25 hours, and if necessary, add oil [SAE E.P. (Extreme Pressure) 80W-90 gear lube] to maintain oil level to the FULL mark o n the dipstick.

IMPORTANT: DO NOT overfill the PTO gearbox to avoid oil leakage out of the dipstick standpipe.

If the oil level is low, check the gearbox for any indication of an oil leak. If an oil leak is noted, the gearbox will need to be removed and rebuilt.

Jackshaft

Dipstick

PTO

Gearbox

Dipstick

PTO

Gearbox

Dipstick Location, T ractor PTO Gearbox - Model MC

Changing Gearbox Oil

The tractor PTO gearbox is oil filled. No scheduled oil change is required. However, changing the oil after the first 100 hour break-in period will extend gearbox life and is recommended.

1. Remove the drain plug in the bottom of the gearcase, drain the oil, and reinstall the plug.

2. Refill the gearbox through the dipstick standpipe using 7 to 8 fl. oz. (21 to 24 cl) of SAE E.P. (Extreme Pressure) 80W-90 gear lube. Remove plug in top of gearcase to vent air when refilling.

Dipstick Location, T ractor PTO Gearbox - Mode l MT

Jackshaft

PTO

Gearbox

Dipstick

Dipstick Location, T ractor PTO Gearbox - Model MD

3. Check that the oil level is at the FULL mark on the dipstick. DO NOT overfill.

WALKER MANUFACTURING COMPANY

Page: 2-10

SERVICE INSTRUCTIONS

July 2006

Tractor PTO Gearbox Lubrication - Model MS

The tractor PTO gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be checked ev- ery 25 hours for indication of oil leaks. If evidence of an oil leak is noted, replace the oil seal and relubricate the gearbox. The gearbox will need to be removed from the tractor to be serviced. Refill with SAE E.P. (extreme pressure) 80W-90 gear lube until level is up to (submerges) horizontal shaft of gearbox (shaft parallel to cover). DO NOT overfill.

NOTE: In case the gearboxes are completely drained of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is required to refill the gear drive assembly.

PTO

Gearbox

CAUTION

Do not leave the mower in this position for an extended period of time to prevent oil from draining into the heads and causing possible engine damage.

PTO Gearbox

Fill Plug

PTO Gearbox

Drain Plug

Rear of Tractor

Tractor PTO Gearbox

Tractor PTO Gearbox Lubrication - Model MW

Checking Gearbox Oil Level

The tractor PTO gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be checked ev- ery 25 hours for indication of oil leaks. If evidence of an oil leak is noted, replace the oil seal and relubricate the gearbox. The gearbox can be drained by removing the plug on the gearbox cover. Replace plug and refill gearbox using 5 fl. oz. (15cl) of SAE E.P. (Extreme Pressure) 80W-90 gear lube.

With the deck removed, the tractor unit may need to be tilted forward (resting on deck support arms) for positioning purposes, to add oil into the PTO gearbox.

Tractor PTO Gearbox Location

(view from underside of tractor)

Transaxle Lubrication - Model MW

• The transaxle oil lubrication is SAE 20W-50 engine

oil.

• Inspect both transaxle cases after every 100 hours

of operation for visible leaks. If a leak is detected, the oil level should be checked through the breather port on top of the transaxle. Using a clean rod, measure the oil level by placing the rod in the fill port and bottoming out the rod on the bottom of the case. Remove the rod and measure the oil level on the rod. It should measure 4 to 4-1/4 in. (10 to 10.75 cm) total depth of oil. DO NOT overfill.

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Page: 2-11

SERVICE INSTRUCTIONS

July 2006

Transaxle Lubrication - Model MB

• The transaxle oil lubrication is SAE 20W-50 engine oil.

• Inspect both transaxle cases and hoses after every

100 hours of operation for visible leaks.

• The fluid levels for each transaxle can be checked vi-

sually by looking at the fluid levels in each expansion reservoir. When the transaxles are cold, the fluid level in the expansion reservoirs should be between 1/4" and 1/2" (.64 cm and 1.27 cm).

Reservoir Cap

Hot Level

Cold Level

8. Before reinstalling the elbows, screw the locking nut on the elbows down until they are snug (the oring on the elbow will be to the bottom of the o-ring groove).

9. Reinstall the elbows. When the elbow begins to be snug, position the elbow as it was when removed and tighten the lock nut.

10. Remove the block from the left wheel and reattach the reservoir hoses to the transaxles.

1 1. Fill both reservoirs to 1” (25 mm) with 20W-50 oil.

12. Start and drive the unit for 1- 2 minutes.

13. If the transaxles sound noisy or have poor steering response, recheck oil level in both transaxles by removing the elbows (check oil level at fill opening).

14. If oil needs to be added refer back to steps 5-13.

Oil Reservoir

Expansion Reservoir Location

Changing Gearbox Oil

1. Thoroughly clean the exterior of the transmission housing before servicing. Using a 1/4” hex wrench, remove the plug located approximately 2” (50 mm) from the bottom on the back side of each transaxle allowing the oil to drain.

2. To remove the remainder of the oil [approximately 6-8 oz. (.18–.24 liter)] below the plug, use an oil suction gun. Reinstall drain plugs.

3. Remove and replace the oil filters using a 3/8” hex wrench.

4. Using an oil suction gun, remove all oil in the reservoirs.

5. Place 6” (15 cm) block under th e left hand drive wheel.

6. Remove the oil reservoir hose attached to the elbow on top of the transaxles and remove the elbows to access the oil fill openings.

Oil Fill

(Remove Elbow)

Drain Plug

Component Locations

7. Fill the transaxles with 20W-50 oil through the opening where the elbows were. Fill up to the opening.

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Hydrostatic Transmission Fluid - Model MS, MC, MD, MT

Checking Hydrostatic Transmission Fluid Level

Oil Filter

Access

Hydrostatic transmission fluid level should be checked every 25 hours of machine operation. It is preferable to check the fluid level when fluid is cold. Check fluid level as follows:

1. Park the mower on a level surface. Stop the engine and wipe dirt and contaminants from around the reservoir cap and air bleed plug.

IMPORTANT: Before removing the reservoir cap, clean any dirt from around it. Any dirt or contaminants entering the transmission will accelerate wear and eventually cause loss of power to the drive wheels.

Oil Filter Access

Steering Linkage and PTO Linkage Lubrication Model MW

The steering and PTO linkage are located at the rea r of the tractor below the body. The grease and oil points should be lubricated every 25 hours.

Rear of Tractor

PTO Linkage

Lubrication Points

Steering Linkage

Lubrication Points

Steering and PTO Linkage Location

(view from underside of tractor)

IMPORTANT: Removing or breaking the seal with-

in the first 500 hours will void the warranty. NOTE: Check oil level of sealed hydrostatic trans-

mission after first 500 hours using a light next to the reservoir.

2. Remove the reservoir cap and check the level of the fluid. The reservoir has a fluid level COLD mark and HOT mark. The reservoir oil level should

ALWAYS be at or above the COLD mark and NEVER above the HOT mark.

Reservoir Cap

Hot Level

Cold Level

Air Bleed Plug

Gear Axle Lubrication - Model MS, MC, MD, MT

• The gear axle oil lubrication is SAE 80W-90 (API

GL-5) gear lube.

• Check the axle oil level after every 100 hours of op-

eration by removing the oil level plug. If additional oil is needed, remove the breather vent on top of axle and fill until oil is at the level plug.

• Change axle oil every 1000 hours or two (2) years.

Transmission Reservoir

and Air Bleed Plug Location (Model MC shown)

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SERVICE INSTRUCTIONS

July 2006

3. If the fluid is below the COLD mark (or the transmission is not performing properly), loosen the air bleed plug (located on the top of transmission case next to the plastic reservoir).

a. If a small amount of fluid leaks from around

the air bleed plug: * The transmission is full of fluid.

* Tighten the plug and fill the reservoir to the

COLD level mark.

b. If no fluid leaks from around the air bleed plug:

* Slowly add fluid into the reservoir until fluid

starts to leak from around the plug. (Transmissions are serviced from the factory with Mobil 1 (15W50) Synthetic Oil). When it is necessary to add fluid, refer to Specifications for the proper fluid.

* As soon as there is fluid leaking from

around the air bleed plug, tighten the plug and fill the reservoir to the COLD level mark. Wipe any excess oil off of the transmission housing.

IMPORTANT: DO NOT overfill the transmission reservoir. This will result in oil leaking out of the reservoir cap vent when the transmission warms up. It is preferable to add fluid to the transmission when it is cold and make sure the oil is not above or below the COLD level mark.

IMPORTANT: The transmission reservoir has a fine mesh screen in the bottom to trap dirt and fore ign particles from entering the transmission. When filling the reservoir, fluid will flow quite slowly through this screen; so it is essential that there is fluid at the bleed plug before the transmission is considered full.

Changing Hydrostatic Transmission Fluid - Model MS, MC, MD, MT

The hydrostatic fluid should be changed every 1000 hours or two (2) years. Also, the fluid should be changed if the natural color of the fluid has b ecom e black or milky (indicating possible overheating or

water contamination of fluid). The transmission is refilled using the factory service fluid noted in TRANS- MISSION Specifications. The fluid is changed as follows:

1. Park the mower on a level surface and stop the engine.

2. Remove the lower drain plug and the air bleed plug. Allow the fluid to drain out.

IMPORTANT: Clean any dirt from around the plugs and reservoir cap before removing them.

3. Reinstall the lower drain plug, making sure the rubber O-ring on the plug is in place and in good con-

dition.

4. Refill the transmission through the air bleed plug hole until it is as full as possible.

IMPORTANT: Avoid fluid contamination when filling the reservoir. Use clean container, spout, funnel, etc. when pouring the fluid into the reservoir .

5. Rotate the transmission input shaft about five (5) revolutions to allow any trapped air to escape.

6. Before installing the air bleed plug, fill the reservoir with fluid allowing a small amount to leak out of the air bleed plug hole.

7. Install the air bleed plug and fill the reservoir to the

COLD level line.

IMPORTANT: Any attempt to remove or in any way al-

ter the filtering screen in the transmission reservoir could cause damage to the transmission and will VOID any transmission warranty.

WALKER MANUFACTURING COMPANY

Page: 2-14

SERVICE INSTRUCTIONS

July 2006

Grease Fitting and Oil Point Lubrication - All Models Lubricate the grease fittings and oil points after every

25 hours of operation. Lubricate more often when op-

erating in dusty or dirty conditions. Use SAE general purpose lithium or molybdenum base grease for gr ease fittings and light machine oil (SAE 10) to lubricate oil points. Lubricate the locations shown in the Chas-

sis and Deck Lubrication Points illustration. NOTE: PTO universal joints (on the deck and tractor)

require routine lubrication after every 8 hours of running time. Remove tractor PTO tube assembly for easy access to grease fittings.

Model MS, MB

NOTE: The pillowblock bearings on the PTO drive shaft are a sealed, relubricatable-type be aring. Grease lightly once per year using care to not over-lubricate and damage the seals.

LUBRICATION - IMPLEMENTS

WARNING

Drive Chain

Lubricate the drive chain every 8 hours. A light penetrating oil or special purpose chain oil is recommended. Lubricate the drive chain as follows:

1. Remove the three (3) screws fastening the removable chain guard cover to the frame.

DO NOT attempt to lubricate the machine with the tractor engine running. Disengage the PTO clutch, shut off the machine, and remove the ignition key.

Proper lubrication is an important maintenance procedure. It reduces wear and makes the machine quieter and easier to operate.

Perfaerator

Grease Fitting and Oil Point Lubrication Lubricate the grease fittings and oil point s after every 8

hours of operation (or as recommended below). Use

SAE general purpose lithium or molybdenum base grease for grease fittings and light machine oil (SAE 10) to lubricate oil points.

Gearbox

The gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seal(s) should be checked every 25 hours for indication of an oil leak. If gearbox oil is changed, fill with 15 oz. of 80W-90 gear oil. Do not

overfill.

Remove Chain Guard Cover

2. Apply oil to the drive chain.

3. Adjust the chain if necessary. Refer to ADJUST-

MENTS of Drive Chain Tension in the Service Procedures Section.

4. Reinstall chain guard cover by reversing the removal procedure.

WALKER MANUFACTURING COMPANY

Page: 2-15

SERVICE INSTRUCTIONS

July 2006

Lifting Mechanism

Lubricate the grease fittings (4) across the lifting mechanism attached to the frame every 25 hours. Use SAE general purpose lithium or molybdenum base grease.

Camshaft

Drive

Lifting

Mechanism

Implements

Rotary Broom Gearbox

The gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seal(s) should be checked every 25 hours for indication of an oil leak. If an oil leak is noted, replace the oil seal and relubricate the gear-box as follows:

1. Remove the gearbox following the procedure described in REPLACING/REPAIRING the Rotary Broom Gearbox in this section.

Dipstick Plug

Gearbox

Mounting

Bolt

Gearbox

Cover

Lubricating Lift Mechanism and Camshaft Drive

Camshaft Drive System

Lubricate the grease fittings (16) on the camshaft drive system every 4 hours. Use Almagard cant (Walker P/N 6685-7).

The bearings at each end and att ached to the retra ctor plate arms are sealed and should be greased every 100 hours of operation. Use SAE general purpose lithium or molybdenum base grease.

PTO U-Joint Lubricate the grease fitting for the PT O U-Joint eve ry 8

hours with SAE general purpose lithium or molybde-

num base grease. The PTO U-Joint is accessed by removin g the gearbox

cover.

#3752 lubri-

Gearbox

Plug

Rotary Broom Gearbox with Cover Removed

2. Clean the area around the plug locate d on the front of the gearbox.

3. Remove the gearbox plug on the gearbox.

4. If the lubricant is flowing out of the plug hole, the gearbox is full. Reinsert the plug. If no lubricant flows out, add SAE E.P. (Extreme Pressure) 80W90 oil into the gearbox through the plug hole until it starts to flow out.

5. Wipe the threads of the gearb ox plug before re installing.

6. Torque plug to 24 in-lb (2.7 N·m). NOTE: In case the gearbox is completely drain ed

of oil, approximately 5 fl. oz. (15 cl) of oil is required to refill the gearbox.

WALKER MANUFACTURING COMPANY

Page: 2-16

SERVICE INSTRUCTIONS

July 2006

Rotary Broom Drive Chain

Lubricate the drive chain every 25 hours. A light penetrating oil or special purpose chain oil is recommended. Lubricate the drive chain as follows:

1. Remove the two (2) bolts fastening the chain gu ard cover to the broom housing and remove the cover.

Drive Chain

Chain Guard BoltsChain Guard Cover

Two-Stage Snowblower Gearbox

The gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seal(s) should be checked every 25 hours for indication of an oil leak. If an oil leak is noted, replace the oil seal(s) and relubricate the gear-box as follows:

1. Remove the gearbox following the procedure described in REPLACING/REPAIRING the Two-

Stage Snowblower Gearbox in this section.

Remove Chain Guard Cover

2. Apply oil to the drive chain.

3. Reinstall the chain guard cover by reversing the removal procedures.

Lubricant

Plug

Snowblower Lubricant Plug Location

2. Clean the area around the lubricant plug located on the front of the gearbox.

3. Remove the lubricant plug on the gearbox.

4. If the lubricant is flowing out of the plug hole, the gearbox is full. Reinsert the plug. If no lubricant flows out, add SAE E.P. (Extreme Pressure) 80W90 lubricant into the gearbox through the plug hole until it starts to flow out.

5. Wipe the threads of the gearb ox plug before re installing.

6. Torque plug to 24 in-lb (2.7 N·m). NOTE: In case the gearbox is completely drain ed

of oil, approximately 5 fl. oz. (15 cl) of oil is required to refill the gearbox.

WALKER MANUFACTURING COMPANY

Page: 2-17

SERVICE INSTRUCTIONS

July 2006

Two-Stage Snowblower Reduction Chain

Lubricate the reduction chain every 25 hours. A light penetrating oil or special purpose chain oil is recommended. Lubricate the reduction chain as follows:

1. Remove the bolt fastening the reduction box cover to the reduction box and remove the cover.

Reduction

Chain

Remove Reduction Box Cover

2. Apply oil to the reduction chain.

3. Adjust the chain if necessary. Refer to ADJUST-

MENTS of Two-Stage Snowblower Reduction Chain Tension in the Service Procedures Section.

4. Reinstall the reduction box cover by reversing the removal procedures.

SB36 Snowblower

Grease Fitting and Oil Point Lubrication Lubricate the grease fittings and oil points after every

25 hours of operation. Use SAE general purpose lith-

ium or molybdenum base grease for grease fittings and light machine oil (SAE 10) to lubricate oil points. Lubri-

cate the locations shown in the Snowblower Lubr ication Points illustration.

PTO U-Joint Lubricate the grease fitting for the PT O U-jo int eve ry 8

hours with SAE general purpose lithium or molybde-

num base grease. The PTO U-joint is accessed by removing the gearbox

cover. Four (4) bolts fasten the gearbox cover to mounting holes on the snowblower frame (refer to

Snowblower with Gearbox Cover Removed photo). Gearbox Lubrication

The gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seal(s) should be checked every 25 hours for indication of an oil leak. If an oil leak is noted, replace the oil seal(s) and relubricate the gearbox as follows:

1. Remove the gearbox following the procedure described in Gearbox Replacement in REPLAC-

ING/REPAIRING.

Grease Fitting and Oil Point Lubrication Lubricate the grease fittings and oil points after every

25 hours of operation. Use SAE general purpose lith-

ium or molybdenum base grease for grease fittings and light machine oil (SAE 10) to lubricate oil points. Lubri-

cate the locations shown in the Lubrication Points illustrations.

Gearbox Cover Mounting Holes

Snowblower with Gearbox Cover Removed

WALKER MANUFACTURING COMPANY

Page: 2-18

SERVICE INSTRUCTIONS

July 2006

2. Clean the area aroun d the gearbox cover plate t o prevent contaminants from entering the gearcase.

3. Remove the screws securing the cover plate on the gearbox.

4. Check the level of lubricant in the gearbox. If the lubricant is low, add SAE E.P. (Extreme Pressure) 80W-90 oil until the oil level is up to (submerges) the horizontal shaft in the gearbox (shaf t parallel to cover plate).

NOTE: In case the gearbox is completely drained of oil, approximately 5 fl. oz. (15 cl) of oil is required to refill the gearbox.

IMPORTANT: DO NOT overfill the gearbox. The gearbox assembly is not vented, and overfilling with oil will cause excessive pressure and result in oil leaks.

5. Check the condition of the cover gasket and replace if worn or damaged. Reinstall gearbox cov er plate; torque screws to 24 in-lb (2.7 N·m).

6. Reinstall the gearbox cover by reversing the removal procedures.

Drive Chain Lubrication

Lubricate the drive chain every 25 hours. A light penetrating oil or special purpose chain oil is recommended. Lubricate the drive chain as follows:

1. Remove the screw fastening the removable chain guard cover to the snowblower housing and remove the cover.

Chain Tension Block

Mounting Bolt

Chain Guard

Cover

Chain

Remove Chain Guard Cover

2. Apply oil to the drive chain.

3. Adjust the chain if necessary. Refer to ADJUST-

MENTS of Drive Chain Tension in the Service Procedures Section.

4. Reinstall chain guard cover by reversing the removal procedures.

WALKER MANUFACTURING COMPANY

Page: 2-19

SERVICE INSTRUCTIONS

Lubrication Points - MT, MTL, MTEFI, MTLEFI

July 2006

Ident Lubrication No. No. Location Type Places

1 Deck Caster Wheel Fork Pivot Grease 2 2 Deck Caster Wheel Bearing Grease 2 3 Tee Gearbox, Deck Oil 4 Blade Drive Gearbox Oil 5 Universal Joint Shaft Assembly Grease 6 Pivot Assembly, Tilt-Up Deck Grease 4 7 Deck Support Arm Socket Grease 2 8 Body Hinge Point Oil 2

9 FSC Actuator Rod Pivot Pins Oil 2 10 FSC Lever Pivot Grease 1 11 FSC Lever Fork Grease 1

(Grease Slide Area) 12 (FSC) Friction Body Pivot Grease 1 13 Steering Lever Pivot Grease 4 14 Deck Support Arm Pivot Grease 2 15 Deck-to-PTO Coupling Grease 1

(Grease Slide Area) 16 Universal Joint Tube Assembly Grease 17 Universal Joint Quick Connect Grease 1

Spline (Grease Slide Area) 18 Parking Brake Lever Grease 1 19 Gear Axle Oil 20 Belt Tightener Pivot, Grease 1

Jackshaft Drive 21 Throttle Control Cable Ends Oil 2 22 Clutch Actuator Push Rod Grease 2 23 PTO Clutch Lever Pivot Grease 1 24 Belt Tightener Pivot, Grease 1

PTO Clutch

* 1 * 2

** 1

*** 2

Ident Lubrication No. No. Location Type Places

25 Brake Actuator Rod and Brake Oil 3

Band Pivot Pins (Clevis) 26 Brake Actuator Pivot Grease 1 27 Catcher Hinge Point Oil 2 28 Rear Wheel Bearings Grease 2 29 Engine Oil Oil 30 Choke Control Cable Ends Oil 2

(Models MT and MTL only) 31 Belt Tightener Pivot, Grease 1

Blower Drive (GHS Model Only) 32 Belt Tightener Pivot, Grease 1

Ground Drive 33 PTO Gearbox Dipstick Oil 34 Hydrostatic Drive Oil 35 Choke Control Pivot Oil 1

(Models MT and MTL only) 36 Throttle Control Pivot Oil 1

*** 1

*** 1 *** 2

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Mower Deck Gearbox

Lubrication in this section.

** Grease every eight (8) hours. *** Refer to Gear Axle Lubrication, Engine Oil, Tractor PTO

Gearbox Lubrication, and Hydrostatic Transmission Fluid

in this section.

NOTE: DGHS42 Tilt-Up Deck is shown for reference. For other

Deck Lubrication Points, Refer to Deck and Carrier Frame

Illustrated Parts Manual.

WALKER MANUFACTURING COMPANY

Page: 2-20

SERVICE INSTRUCTIONS

July 2006

6 7

14 19

21 & 36

30 & 35

33 32 31

6 7

15 16

27 27

Chassis and Deck Lubrication Points - Model MT

WALKER MANUFACTURING COMPANY

Page: 2-21

Lubrication Points - MD

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 Deck Caster Wheel Fork Pivot Grease 2 2 Blade Drive Gearbox Oil 3 Tee Gearbox, Deck Oil 4 Deck Caster Wheel Bearing Grease 2 5 Universal Joint Shaft Assembly Grease 6 Pivot Assembly, Tilt-Up Deck Grease 4 7 Deck Support Arm Socket Grease 2 8 Body Hinge Point Oil 2

9 FSC Actuator Rod Pivot Pins Oil 2 10 FSC Lever Pivot Grease 1 11 FSC Lever Fork Grease 1

(Grease Slide Area) 12 Steering Lever Pivot Grease 4 13 Deck Support Arm Pivot Grease 2 14 Deck-to-PTO Coupling Grease 1

(Grease Slide Area) 15 Universal Joint Tube Assembly Grease 16 Universal Joint Quick Connect Grease 1

Spline (Grease Slide Area) 17 Parking Brake Lever Grease 1 18 Gear Axle Oil 19 Belt Tightener Pivot, Grease 1

Ground Drive

* 2 * 1

** 1

*** 2

Ident Lubrication No. No. Location Type Places

20 PTO Clutch Lever Pivot Grease 1 21 Clutch Actuator Push Rod Grease 2 22 Brake Actuator Rod and Brake Oil 3

Band Pivot Pins (Clevis) 23 Throttle Control Cable Ends Oil 2 24 Cold Start Lever Grease 1 25 Catcher Hinge Point Oil 2 26 Rear Wheel Bearings Grease 2 27 Engine Dipstick / Oil Filler Oil 28 Belt Tightener Pivot, Grease 1

Blower Drive (GHS Model Only) 29 PTO Gearbox Dipstick Oil 30 Hydrostatic Drive Oil 31 (FSC) Friction Body Pivot Grease 1

*** 1

*** 1 *** 2

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Mower Deck Gearbox

Lubrication in this section.

** Grease every eight (8) hours. *** Refer to Gear Axle Lubrication, Engine Oil, Tractor PTO

Gearbox Lubrication, and Hydrostatic Transmission Fluid

in this section.

NOTE: DGHS42 Tilt-Up Deck is shown for reference. For other

Deck Lubrication Points, Refer to Deck and Carrier Frame

Illustrated Parts Manual.

WALKER MANUFACTURING COMPANY

Page: 2-22

SERVICE INSTRUCTIONS

July 2006

223

7 6

13 18 30

23 & 32

7 6 8

25 2526

Chassis and Deck Lubrication Points - Model MD

WALKER MANUFACTURING COMPANY

Page: 2-23

Lubrication Points - MC

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 Deck Caster Wheel Fork Pivot Grease 2 2 Deck Caster Wheel Bearing Grease 2 3 Tee Gearbox, Deck Oil* 1 4 Blade Drive Gearbox Oil* 2 5 Universal Joint Shaft Assembly Grease** 1 6 Pivot Assembly, Tilt-Up Deck Grease 4 7 Deck Support Arm Socket Grease 2 8 Body Hinge Point Oil 2

9 FSC Actuator Rod Pivot Pins Oil 2 10 FSC Lever Pivot Grease 1 11 FSC Lever Fork Grease 1

(Grease Slide Area) 12 (FSC) Friction Body Pivot Grease 1 13 Steering Lever Pivot Grease 4 14 Deck Support Arm Pivot Grease 2 15 Deck-to-PTO Coupling Grease 1

(Grease Slide Area) 16 Universal Joint Tube Assembly Grease** 1 17 Universal Joint Quick Connect Grease 1

Spline (Grease Slide Area) 18 Parking Brake Lever Grease 1 19 Gear Axle Oil*** 2 20 Belt Tightener Pivot, Grease 1

Jackshaft Drive 21 Clutch Actuator Push Rod Grease 2 22 PTO Clutch Lever Pivot Grease 1 23 Belt Tightener Pivot, Grease 1

PTO Clutch

Ident Lubrication No. No. Location Type Places

24 Brake Actuator Rod and Brake Oil 3

Band Pivot Pins (Clevis) 25 Brake Actuator Pivot Grease 1 26 Catcher Hinge Point Oil 2 27 Choke Control Cable Ends Oil 2 28 Throttle Control Cable Ends Oil 2 29 Engine Oil Oil*** 1 30 Belt Tightener Pivot, Grease 1

Blower Drive (GHS Model Only) 31 Belt Tightener Pivot, Grease 1

Ground Drive 32 PTO Gearbox Dipstick Oil*** 1 33 Hydrostatic Drive Oil*** 2 34 Choke Control Pivot Oil 1 35 Throttle Control Pivot Oil 1

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Mower Deck Gearbox

Lubrication in this section.

** Grease every eight (8) hours. *** Refer to Gear Axle Lubrication, Engine Oil, Tractor PTO

Gearbox Lubrication, and Hydrostatic Transmission Fluid

in this section.

NOTE: DGHS42 Tilt-Up Deck is shown for reference. For other

Deck Lubrication Points, Refer to Deck and Carrier Frame

Illustrated Parts Manual.

WALKER MANUFACTURING COMPANY

Page: 2-24

SERVICE INSTRUCTIONS

July 2006

6 7 6

28 & 35

6 7

14 15 16

27 & 34

26 26

Chassis and Deck Lubrication Points - Model MC

WALKER MANUFACTURING COMPANY

Page: 2-25

Lubrication Points - MS

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

9 Body Hinge Point Oil 2 10 FSC Actuator Rod Pivot Pins Oil 2 11 FSC Lever Pivot Grease 1 12 FSC Lever Fork Grease 1

(Grease Slide Area) 13 (FSC) Friction Body Pivot Grease 1 14 Deck-to-PTO Coupling Grease 1

(Grease Slide Area) 15 Deck Support Arm Pivot Grease 2 16 Universal Joint Tube Assembly Grease 17 Parking Brake Lever Grease 1 18 Pillowblock Bearing, Drive Shaft Grease 19 Gear Axle Oil 20 Clutch Control Lever Pivot Grease 1 21 Clutch Control Clevis Pin Oil 1 22 Scrubber Brake Linkage Oil 5

(GHS Model Only) 23 Clutch Actuator Rod Grease 1

(Grease Slide Area)

* 2 * 1

** 1

*** 2

Ident Lubrication No. No. Location Type Places

24 PTO Belt Tightener Pivot Grease 1 25 Engine Dipstick / Oil Filler Oil 26 Catcher Hinge Point Oil 2 27 Throttle Control Cable Ends Oil 2 28 Choke Control Cable Ends Oil 2 29 Engine Belt Tightener Pivot Grease 1 30 Right Angle Gearbox, Tractor Oil 31 Hydrostatic Drive Oil 32 Ground Drive Belt Tightener Pivot Grease 1 33 Choke Control Pivot Oil 1 34 Throttle Control Pivot Oil 1

*** 2

*** 1 *** 2

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted.

** Grease every eight (8) hours. *** Refer to Gear Axle Lubrication, Engine Oil, Tractor PTO

Gearbox Lubrication, and Hydrostatic Transmission Fluid

in this section.

NOTE: DGHS42 Tilt-Up Deck is shown for reference. For other

Deck Lubrication Points, Refer to Deck and Carrier Frame

Illustrated Parts Manual.

WALKER MANUFACTURING COMPANY

Page: 2-26

SERVICE INSTRUCTIONS

July 2006

6 8

27 & 34

28 & 33

5 6

7 6

17 18 19

2222

2323

Chassis and Deck Lubrication Points - Model MS

2222

2424

WALKER MANUFACTURING COMPANY

Page: 2-27

Lubrication Points - MW

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 Deck Caster Wheel Fork Pivot Grease 2 2 Deck Caster Wheel Bearing Grease 2 3 Tee Gearbox, Deck Oil 4 Blade Drive Gearbox Oil 5 Universal Joint Shaft & Grease

Tube Assembly

6 Pivot Assembly, Tilt-Up Deck Grease 4 7 Deck Support Arm Socket Grease 2 8 Universal Joint Quick Connect Grease 1

Spline (Grease Slide Area)

9 Ground Drive Belt Idler Arm Grease 1

(not visible - access side of body) 10 Throttle/Choke Control Pivot Oil 1

(on Control Panel) & Cable End

* 1 * 2

** 1

Ident Lubrication No. No. Location Type Places

11 PTO Clutch Lever Pivot Grease 3 12 Parking Brake Pivot Oil 1 13 Engine Oil Oil 14 Steering Control Linkage Grease 2 15 Tail Wheel Fork Pivot & Grease 2

Wheel Bearing (not shown) 16 Clutch Actuator Push Rod Grease 1 17 Deck Support Pivot Arm Grease 2

*** 1

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Mower Deck Gearbox

Lubrication in this section.

** Lubricate every eight (8) hours. *** Refer to Engine Oil in this section.

NOTE: DSD42 Deck is shown for reference. For other Deck

Lubrication Points, Refer to Deck and Carrier Frame

Illustrated Parts Manual.

WALKER MANUFACTURING COMPANY

Page: 2-28

SERVICE INSTRUCTIONS

July 2006

7 6

5 7

Chassis and Deck Lubrication Points - Model MW

WALKER MANUFACTURING COMPANY

Page: 2-29

SERVICE INSTRUCTIONS

Lubrication Points - MB (Start S/N 2004-68441)

July 2006

Ident Lubrication No. No. Location Type Places

1 Deck Caster Wheel Fork Pivot Grease 2 2 Deck Caster Wheel Bearing Grease 2 3 Tee Gearbox, Deck Oil 4 Blade Drive Gearbox Oil 5 Universal Joint Shaft Assembly Grease 6 Deck Support Arm Socket Grease 2 7 Pivot Assembly, Tilt-Up Deck Grease 4 8 Steering Lever Pivot Grease 2 9 Transaxle Oil Reservoir Oil 2

10 Deck-to-PTO Coupling Grease 1

(Grease Slide Area) 11 Universal Joint Tube Assembly Grease 12 Deck Support Arm Pivot Grease 2 13 Hydro Idler Arm Pivot Grease 1 14 Parking Brake Clevis Oil 1 15 FSC Lever Pivot Grease 1 16 Body Latch Oil 1 17 Parking Brake Lever Oil 2 18 Choke Control Cable Ends Oil 2 19 PTO Belt Tightener Pivot Grease 1

* 1 * 2

** 1

Ident Lubrication No. No. Location Type Places

20 Pillowblock Bearing, Drive Shaft Grease 21 Throttle Control Cable Ends Oil 2 22 Engine / Oil Filler Oil 23 Choke Control Pivot Oil 1 24 Throttle Control Pivot Oil 1

*** 1

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted.

** Grease every eight (8) hours. *** Refer to Engine Oil located in this section.

Sealed, relubricatable-type bearings, grease lightly once per year, do not over grease or seals will be damaged.

NOTE: DSD42 Tilt-Up Deck is shown for reference. For other

Deck Lubrication Points, refer to Deck and Carrier Frame

Illustrated Parts Manual.

WALKER MANUFACTURING COMPANY

Page: 2-30

SERVICE INSTRUCTIONS

July 2006

6 7

21 & 24

18 & 23

12 13

Chassis and Deck Lubrication Points - Model MB (Start S/N 2004-68441)

WALKER MANUFACTURING COMPANY

Page: 2-31

SERVICE INSTRUCTIONS

Lubrication Points - MB (Start S/N 2007-85248)

July 2006

Ident Lubrication No. No. Location Type Places

(Grease Slide Area) 10 Universal Joint Tube Assembly Grease 11 Transaxle Oil Reservoir Oil 2 12 Deck Support Arm Pivot Grease 2 13 Hydro Idler Arm Pivot Grease 1 14 Parking Brake Clevis Oil 1 15 FSC Lever Pivot Grease 1 16 Body Latch Oil 1 17 Parking Brake Lever Oil 2 18 PTO Clutch Lever Pivot Grease 1

* 1 * 2

** 1

Ident Lubrication No. No. Location Type Places

19 PTO Belt Tightener Pivot Grease 1 20 Throttle Control Cable Ends Oil 2 21 Engine / Oil Filler Oil 22 Choke Control Cable Ends Oil 2 23 Choke Control Pivot Oil 1 24 Throttle Control Pivot Oil 1

*** 1

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted.

** Grease every eight (8) hours. *** Refer to Engine Oil located in this section.

NOTE: DSD42 Tilt-Up Deck is shown for reference. For other

Deck Lubrication Points, refer to Deck and Carrier Frame

Illustrated Parts Manual.

WALKER MANUFACTURING COMPANY

Page: 2-32

SERVICE INSTRUCTIONS

July 2006

20 & 24

22 & 23

13 14

Chassis and Deck Lubrication Points - Model MB (Start S/N 2007-85248)

WALKER MANUFACTURING COMPANY

Page: 2-33

Lubrication Points - Perfaerator

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 Deck Caster Wheel Fork Pivot Grease 2 2 Deck Caster Wheel Bearing Grease 2 3 Rod Bearing Bushing Grease 4 4 Drive Chain Oil 5 Eccentric Assembly Tine Grease

* 1

** 12

Ident Lubrication No. No. Location Type Places

6 Actuator Rod Pivots Grease 4 7 Deck Support Arm Socket Grease 2 8 Universal Joint Shaft Assembly Grease

9 Actuator Link Latch Oil 1 10 Foot Trigger Pivot Oil 1 11 Engage Lever Pivot Grease 1

* 1

* Grease every eight (8) hours. ** Grease every eight (8) hours using Almagard #3752 lubricant

(Walker P/N 6685-7).

NOTE: The gearbox is permanently lubricated (oil filled) and

sealed requiring no scheduled lubrication. However, the gearbox oil seal(s) should be checked every 25 hours for indication of an oil leak.

WALKER MANUFACTURING COMPANY

Page: 2-34

SERVICE INSTRUCTIONS

July 2006

231 3

31234

Chassis and Deck Lubrication Points - Perfaerator

766

87 611

910

WALKER MANUFACTURING COMPANY

Page: 2-35

Lubrication Points - Implement Hitch

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 PTO Shield Hinge Oil 1 2 Hitch Locking Lever Pivot Oil 1 3 Mounting Tube Sockets Grease 2

Ident Lubrication No. No. Location Type Places

4 Hitch Lift Crank Grease 1

5 Hitch Pivot Shaft Oil 1

6 Quick Hitch Latch Oil 1

WALKER MANUFACTURING COMPANY

Page: 2-36

SERVICE INSTRUCTIONS

July 2006

Lubrication Points - Implement Hitch

WALKER MANUFACTURING COMPANY

Page: 2-37

Lubrication Points - Dozer Blade

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 Cutting Edge Oil 1 2 Skid Shoe Brackets Grease 2

(Grease Slide Area)

3 Hitch Box Pin Oil 1

Ident Lubrication No. No. Location Type Places

4 Trip Spring Lockout Bracket

Pivot Pin Oil 1 5 Angle Adjustment Pin Oil 1 6 Female Quick Hitch Pivot Pin Oil 1

WALKER MANUFACTURING COMPANY

Page: 2-38

SERVICE INSTRUCTIONS

July 2006

Lubrication Points - Dozer Blade

WALKER MANUFACTURING COMPANY

Page: 2-39

Lubrication Points - Rotary Broom

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 Chain Drive Sprocket Oil 1 2 Chain Drive Shaft Grease 1 3 Gearbox Oil 4 Wheel Brackets Grease 2 5 Angle Adjustment Lever Pivot Oil 1 6 Driveline Grease 1 7 Driveline Support Pivot Oil 1 8 Angle Adjustment PlateOil 1

* 1

Ident Lubrication No. No. Location Type Places

9 Universal Joint Shaft Assembly Grease

(Grease Slide Area)

10 Ground Contact Knob Eyebolt Grease 1 11 Drive Chain Oil 1

** 1

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Rotary Broom Gearbox in this section.

** Grease every eight (8) hours.

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Lubrication Points - Rotary Broom

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

Lubrication Points - Two-Stage Snowblower

July 2006

Ident Lubrication No. No. Location Type Places

1 Auger Sections Grease 2 2 Gearbox Oil 3 Cutting Edge Oil 1 4 Skid Shoes Grease 2 5 Gearbox Shaft Oil 1 6 Rotation Worm Grease 1 7 Reduction Chain Oil 1 8 Sprockets Oil 2 9 Parallel Bar Pivot Pins Oil 2

10 Universal Joint Shaft Assembly Grease

(Grease Slide Area)

* 1

** 1

Ident Lubrication No. No. Location Type Places

11 Rotation Handle Pivot Oil 1 12 Plastic Anti-Friction Insert Grease 1 13 Chute Knobs Grease 2 14 Deflector Slide Area Grease 1

* Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Two-Stage Snowblower

Gearbox in this section.

** Grease every eight (8) hours.

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Lubrication Points - Two-Stage Snowblower

WALKER MANUFACTURING COMPANY

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Lubrication Points - Debris Blower

SERVICE INSTRUCTIONS

July 2006

Ident Lubrication No. No. Location Type Places

1 Front Gauge Wheel Grease 1 2 Plastic Anti-Friction Insert Grease 1 3 Air Blast Nozzle Oil 1 4 Sprockets Oil 2

Ident Lubrication No. No. Location Type Places

5 Rotation Handle Grease 6 Universal Joint Shaft Assembly Grease

(Grease Slide Area)

* 2 * 1

* Grease every eight (8) hours.

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

July 2006

Lubrication Points - Debris Blower

WALKER MANUFACTURING COMPANY

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SERVICE INSTRUCTIONS

Lubrication Points - SB36 Snowblower

July 2006

Ident Lubrication No. No. Location Type Places

1 Spout Deflector Pivot Oil 2 2 Rotation Worm Oil 1

Handle Pivot

3 Foot Trigger Latch Grease 1

(Grease Slide Area) 4 Mounting Tube Sockets Grease 2 5 Lift Handle Pivot Grease 3 6 Counterweight Spring and

Lift Chain Clevis Pins Oil 4

Ident Lubrication No. No. Location Type Places

7 Universal Joint Shaft Assembly Grease 8 Foot Trigger Pivot Oil 1 9 Right Angle Gearbox Oil

10 Drive Chain Oil 1

* 1

** 1

* Grease every eight (8) hours. ** Gearboxes are permanently lubricated and sealed requiring

no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Gearbox Lubrication in this section.

WALKER MANUFACTURING COMPANY

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Walker MT, MTL, MC, MS, MW15 Detailed Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual