Please Read and Save These Instructions
Safety, Assembly, Operating, and Maintenance Instructions
OWNER’S MANUAL
Model MT 20.0 / 25.0 HP Covers Serial Numbers 95-21329 and on
Foreword
Table of Contents
Component Identification Safety Instructions
Assembly Instructions
General Information
Maintenance Instructions
Table of Contents
MAINTENANCE SCHEDULE CHART IMPORTANT TIPS
Changing Hydrostatic Transmission Fluid 52 CLEANING
General Information
HIGHLIGHTED INFORMATION
GLOSSARY
∙ SIDE DISCHARGE SD mows but does not collect the mowed material
General Information
Tractor Serial Number Location
Mower Deck Serial Number Location ENGINE SERIAL NUMBER LOCATION
Engine Serial Number Location
Specifications
MODEL
MT 20.0 HP
MT 25.0 HP
Specifications
MODEL
MT 20.0 HP
MT 25.0 HP
Specifications
DIMENSIONS Tractor and Mower
CURB WEIGHT Approximate
MODEL
Specifications
MODEL
MT 20.0 HP
MT 25.0 HP
Instructions section
Component Identification
Front View and Right Side View
Component Identification
Rear View and Left Side View
Component Identification
Top View Engine Compartment
Safety Instructions
DANGER
DANGER, WARNING, CAUTION, IMPORTANT, and NOTE in this manual
BEFORE OPERATING
OPERATING
Safety Instructions
7. Do not carry passengers - maximum seating capacity is one 1 person
MAINTENANCE
Safety Instructions
17. In case of a clogged or plugged mower deck or GHS catching system
Safety Instructions
4. Perform only maintenance instructions de- scribed in this manual. Unauthorized main- tenance operations or machine modifications may result in unsafe operating conditions
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety Instructions
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety Instructions
Assembly Instructions
SETUP INSTRUCTIONS
Tire Installation Tractor
Battery Service
Assembly Instructions
Battery Charging
Battery Installation
Battery Installation Mower Deck Assembly
Assembly Instructions
Deck Caster Wheel Installation
Deck Discharge Chute Installation GHS Rear Discharge Models Only
Deck Discharge Shield Installation Side Discharge Models Only
Assembly Instructions
Installing PTO Quick Coupler
Mower Deck Installation PTO Shaft Connection
Coupler Ring “Locked” Position
Assembly Instructions
Deck Counterweight Spring Installation
The machine must be shut off during this procedure
Deck Leveling
Assembly Instructions
PREOPERATING CHECKLIST
Refer to ADJUSTMENTS of Carburetor in Mainte
DANGER
Assembly Instructions
Refer to Gear Axle Lubrication in Maintenance In
Refer to CHECKING/SERVICING the Battery in
Maintenance Instructions
DANGER
Assembly Instructions
Do not operate machine with deck tilt-up pivot joint unlocked
Operating Instructions
CONTROL IDENTIFICATION, LOCATION, AND FUNCTION Operating Controls
Engine Choke
Operating Controls
Operating Instructions
Choke and Throttle Location
Engine Throttle
Forward Speed Control FSC
Operating Instructions
Front Body Latch Release
Front Body Latch Release
Transmission Lockout Levers
Operating Instructions
Operating Controls Top View from Drivers Point of View
Instrument Panel
Operating Instructions
Instrument Panel
Over Temperature Warning Light
Ignition Switch
Ignition Switch
Light Switch For Optional Lights
Operating Instructions
STARTING THE ENGINE
DISENGAGED
Optional Cold Start Lever
ADJUSTING GROUND SPEED AND STEERING
Keep feet on footrests all times when the machine is moving
Operating Instructions
DANGER
Correct Operator Hand Position on the Controls
Operating Instructions
ENGAGING THE MOWER
Blade Clutch Engaged
Operating Instructions
Blade Clutch Disengaged STOPPING THE MACHINE
ADJUSTING CUTTING HEIGHT
Cutting Height Adjustment TRANSMISSION LOCKOUT
Operating Instructions
Lockout Lever - Freewheel Position
Operating Instructions
RECOMMENDATIONS FOR MOWING
Side Discharge Shield in Lowest Position
Maximum Recommended Side Slope
Operating Instructions
To avoid potential deck and/or tractor damage while using the tilt-up deck, the following recommenda- tions are offered
RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT
Operating Instructions
GRASS HANDLING SYSTEM GHS
GHS Model Only
GHS Flow and Components
Operating Instructions
DANGER
DANGER
General Information
Clogging Checklist
Operating Instructions
DANGER
FORWARD
Using the Tilt-Up Deck
Using the GHS Catcher
Powerfil
“Full” Signal Horn
Catcher Door Safety Latch
Using the Dump Bag 7.0 Bushel Catcher
Operating Instructions
DANGER
Power Dump Option
Operating Instructions
DANGER
Dumping Catcher into Dump Bag
Grass Catcher Cable Guide Lift Channel Power Dump Ram Actuator Fork
Guide Cable Assembly Gas Spring Actuator Mount Assembly Dog Leg
Assembly Rubber Bumper
Power Dump Components
Maintenance Instructions
Maintenance procedures requiring special training or
MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MT
Service Item
KOHLER TIPS
Maintenance Instructions
Air Cleaner System
DANGER
LUBRICATION
Maintenance Instructions
LUBRICATION
Engine Oil
Maintenance Instructions
LUBRICATION
Oil Drain/Oil Filter Location
Grease Fitting and Oil Point Lubrication
LUBRICATION
Maintenance Instructions
Grease every eight 8 hours
LUBRICATION
Maintenance Instructions
Chassis and Deck Lubrication Points
Maintenance Instructions
LUBRICATION
Mower Deck Gearbox Lubrication
Mower Deck Gearboxes
Maintenance Instructions
LUBRICATION
Gearbox, Dolly Wheel, and U-Joint Lubrication
Tractor PTO Gearbox Lubrication
Maintenance Instructions
LUBRICATION
Hydrostatic Transmission Fluid
Checking Hydrostatic Transmission Fluid Level
LUBRICATION/CLEANING
Maintenance Instructions
CLEANING Engine Air Cleaner System
Engine Air Cleaner System Components
CLEANING
Maintenance Instructions
Turbine Precleaner
Donaldson Radialseal Air Cleaner Primary
CLEANING
Maintenance Instructions
Air Filter Element Replacement
Maintenance Instructions
CLEANING
Kohler Air Cleaner Secondary
Foam Precleaner
Maintenance Instructions
CLEANING
Air Filter Reinstallation Engine Cooling System
Engine Air Intake Screen and Cooling Fin Access Panels
Maintenance Instructions
CLEANING
Grass Buildup in Mower Housing
DANGER
Maintenance Instructions
CLEANING
GHS Exhaust Screen Refer to Cleaning the GHS Exhaust Screen in Op
DANGER
CLEANING CHECKING/SERVICING
Maintenance Instructions
Battery
DANGER
CHECKING/SERVICING
Maintenance Instructions
Cleaning the Terminals
Charging the Battery
CHECKING/SERVICING
Maintenance Instructions
ALWAYS wear eye protection and gloves when sharpening a blade
Mower Blade Profile For Sharpening
CHECKING/SERVICING REPLACING/REPAIRING
Maintenance Instructions
REPLACING/REPAIRING
DANGER
Maintenance Instructions
REPLACING/REPAIRING
Belt Locations
Maintenance Instructions
REPLACING/REPAIRING
Engine PTO Drive Belt 3 Groove Power Band
Engine PTO Drive Belt Removal
Maintenance Instructions
REPLACING/REPAIRING
Jackshaft Drive Belt
Jackshaft Drive Belt Disengaged
Maintenance Instructions
REPLACING/REPAIRING
GHS Blower Drive Belt Assembly Disengaged
GHS Blower Drive Belt Assembly Engaged
Maintenance Instructions
REPLACING/REPAIRING
Hydrostatic Ground Drive Belt Assembly Disengaged
Hydrostatic Ground Drive Belt Assembly Engaged
Maintenance Instructions
REPLACING/REPAIRING
DANGER
Fuel Filter
Maintenance Instructions
REPLACING/REPAIRING
Mower Deck Gearbox Replacement
DANGER
Maintenance Instructions
REPLACING/REPAIRING
GHS Blower Assembly and/or Blower Wheel
GHS Blower Assembly Removal
Maintenance Instructions
REPLACING/REPAIRING
Pressing Blower Wheel Out of Housing
Blower Wheel Installation
ADJUSTMENTS
Maintenance Instructions
ADJUSTMENTS
Safety Switches
Maintenance Instructions
ADJUSTMENTS
Blade Clutch PTO
Clutch Engagement/Belt Tension
Maintenance Instructions
ADJUSTMENTS
Clutch Disengagement/Brake Action
PTO Clutch Disengaged
Maintenance Instructions
ADJUSTMENTS
Stop Block Eccentric Adjustment - Step
PTO Belt Tightener Stop Block Adjustments
Maintenance Instructions
ADJUSTMENTS
Blade Brake Band Adjustment
Brake Actuator Rod Adjustment
Maintenance Instructions
ADJUSTMENTS
Forward Speed Control Stop and Steering Lever Adjustment
Steering Lever End Play Adjustment - Step
Maintenance Instructions
ADJUSTMENTS
Straight Ground Travel Adjustment - Step
Straight Ground Travel Adjustment
Maintenance Instructions
ADJUSTMENTS
Tilt-Up Deck Adjustable Stop
Tilt-Up Deck Adjustable Stop Carburetor
Maintenance Instructions
ADJUSTMENTS
Carburetor Adjustment
GHS “Full” Signal Horn with Grass-Pak Switch
ADJUSTMENTS/ ELECTRICAL SYSTEM
Maintenance Instructions
Checking the Grass-Pak Switch
Adjustment When Horn Sounds at the Wrong Time
Maintenance Instructions
ELECTRICAL SYSTEM
Wiring Diagram - Model MT
Operator’s Notes
Operator’s Notes
Operator’s Notes
LIMITED WARRANTY FOR WALKER COMMERCIAL RIDER MOWER
1. WHAT THIS WARRANTY COVERS, AND FOR HOW LONG
2. WHAT THIS WARRANTY DOES NOT COVER
3. HOW TO OBTAIN SERVICE UNDER THIS WARRANTY
WALKER MFG. CO. ∙ 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 ∙ 970
Sound - Model MT20
Sound - Model MT25
Vibration - Model MT20