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