Walker MTLEFI, MTEFI, MTL User Manual
OWNER’S MANUAL
™
Safety, Assembly, Operating, and Maintenance Instructions
Model MT (23.0 HP)
Model MTL (25.0 HP)
Model MTEFI (26.0 HP)
Model MTLEFI (31.0 HP)
Please Read and Save These Instructions Effective Date: 08-09-09
For Safety, Read All Safety and Operation P/N 8000-16
Instructions Prior to Operating Machine
Foreword
Thank you. . .for purchasing a Walker mower. Eve ry ef for t has been made to provid e you with th e
most reliable mower on the market, and we are sure you will be among our many satisfied customers. If for any reason this product does not perform to your expectations, please contact us at (970)
221-5614. Every customer is important to us. Your satisfaction is our goal.
Please. . .read this manual thoroughly! This manual is to be used in conjunction with the engine
manufacturer's manual for the specific engine on the mower model you have purchased. Before you
operate your new mower , please read this entire manual. Some of the information is crucial for proper operation and maintenance of this mower - it will help protect your investment and ensure that the
mower performs to your satisfaction. Some of the info rma ti on is important to your safety and must
be read and understood to help prevent possible injury to the operator or others. If anything in this
manual is confusing or hard to understand, please contact your local authorized dealer or call our
service department, at (970) 221-5614, for clarification before operating or servicing this mower.
This manual covers Model MT with the Kohler Command Pro CH23 (23.0 HP) gasoline engine, or
optional Kohler Command Pro CH26 (26.0 HP) Electronic Fuel Injection (EFI) gasoline engine, or
optional Kohler Aegis LH685 (25.0 HP) gasoline engine (liquid cooled), or optional Kohler Aegis
LH775 (31.0 HP) Electronic Fuel Injection (EFI) gasoline engine (liquid cooled).
All shields and guards must be in place for the proper and safe operation of this machine.
Where they are shown removed in this manual, it is for illustration purposes only. Do not operate
this machine unless all shields and guards are in place.
Specifications given are based on the latest information available at the time this manual was produced.
Walker Mfg. Co. is continually striving to improve the design and performance of its products. We
reserve the right to make changes in specifications a nd design without thereby incurrin g any obligation relative to previously manufactured products.
Sincerely,
WALKER MANUFACTURING COMPANY
Bob Walker, President
Table of Contents
General Information ________________ 1
HIGHLIGHTED INFORMATION _____________ 1
GLOSSARY ____________________________ 1
IDENTIFYING NUMBER LOCATIONS________ 1
ENGINE SERIAL NUMBER LOCATION ______ 2
SERVICING OF ENGINE AND
DRIVETRAIN COMPONENTS ______________ 2
Specifications________________________ 3
ENGINE________________________________ 3
ELECTRICAL SYSTEM ___________________ 4
TRANSMISSION_________________________ 4
BLADE DRIVE __________________________ 5
TIRE SIZE______________________________ 5
TIRE PRESSURE ________________________ 5
DIMENSIONS (Tractor and Mower) _________ 5
MOWER DECK__________________________ 6
CURB WEIGHT__________________________ 6
DRIVE BELTS___________________________ 6
GHS SYSTEM (Optional)__________________ 6
SEAT__________________________________ 7
FRAME/BODY CONSTRUCTION ___________ 7
Component Identification___________ 8 Safety Instructions _________________ 13
BEFORE OPERATING___________________ 13
OPERATING___________________________ 15
MAINTENANCE ________________________ 17
SAFETY, CONTROL,
AND INSTRUCTION DECALS _____________ 18
Assembly Instructions _____________ 20
SETUP INSTRUCTIONS _________________ 20
Tire Installation (Tractor)_______________ 20
Battery Service_______________________ 20
Wet Battery Service __________________ 20
Dry Battery Service __________________ 20
Battery Charging ____________________ 21
Battery Installation ___________________ 22
Mower Deck Assembly ________________ 22
Deck Caster Wheels Installation ________ 22
Deck Discharge Chute Installation ______ 22
Deck Discharge Shield Installation ______ 23
PTO Shaft Guard Installation __________ 23
Tilt-Up Roller Wheel Installation ________ 23
Mower Deck Installation on Tractor ______ 23
Deck Installation ____________________ 23
Deck Leveling ______________________ 25
PREOPERATING CHECKLIST ____________ 26
Operating Instructions_____________ 29
CONTROL IDENTIFICATION,
LOCATION, AND FUNCTION _____________ 29
Operating Controls ___________________ 29
Engine Choke - (Model MT and MTL only) 29
Engine Throttle _____________________ 30
Forward Speed Control (FSC) _________ 30
Steering Levers _____________________ 30
Blade Clutch (PTO) __________________ 30
Parking Brake ______________________ 30
Front Body Latch Release ____________ 32
Transmission Lockout Levers __________ 32
Optional Cold Start Lever _____________ 32
Suspension Seat (MTL and MTLEFI) ____ 33
Instrument Panel _____________________ 35
Hourmeter _________________________ 37
Voltmeter _________________________ 37
Oil Pressure Warning Light ____________ 37
Over Temperature Warning Light
(Model MT and MTEFI Only) __________ 37
Water Temperature Warning Light
(Model MTL and MTLEFI Only) ________ 38
Water Temperature Gauge
(Model MTL and MTLEFI Only) ________ 38
Engine Service Light
(Model MTEFI and MTLEFI Only) _______ 38
Ignition Switch ______________________ 38
Light Switch (For Optional Lights) _______ 38
Warning Horn ______________________ 38
Circuit Breakers ____________________ 39
STARTING THE ENGINE_________________ 39
ADJUSTING GROUND
SPEED AND STEERING _________________ 40
ENGAGING THE MOWER________________ 42
STOPPING THE MACHINE _______________ 43
ADJUSTING CUTTING HEIGHT ___________ 44
TRANSMISSION LOCKOUT ______________ 44
RECOMMENDATIONS FOR MOWING ______ 45
RECOMMENDATIONS FOR TILT-UP DECK
OPERATION/TRANSPORT_______________ 47
GRASS HANDLING SYSTEM (GHS) _______ 48
General Information __________________ 49
Clogging Checklist ___________________ 50
Using the Tilt-Up Deck ________________ 51
Using the GHS Catcher________________ 51
Powerfil
“Full” Signal Horn ___________________ 51
Cleaning the GHS Exhaust Screen ______ 51
Dumping the Catcher _________________ 52
Tailgate Dumping ___________________ 52
Using the Dump Bag _________________ 52
Power Dump Option _________________ 53
Hi-Dump
®
_________________________ 51
®
Option ___________________ 54
Table of Contents
Maintenance Instructions__________ 57
MAINTENANCE SCHEDULE CHART _______ 57
IMPORTANT TIPS FOR CARE
OF THE KOHLER ENGINE _______________ 58
Fuel System _________________________ 58
Starting/Stopping_____________________ 58
Cooling System - MT, MTEFI____________ 58
Cooling System - MTL _________________ 58
Air Cleaner System ___________________ 58
Oil _________________________________ 59
LUBRICATION _________________________ 59
Engine Oil ___________________________ 59
Engine Break-In Oil __________________ 59
Checking Engine Crankcase Oil Level ___ 59
Changing Engine Crankcase Oil/Oil Filter _60
Mower Deck Gearbox Lubrication _______ 60
DSD52 or DSD62
Mower Deck Lubrication _______________ 61
Tractor PTO Gearbox Lubrication _______ 62
Checking Gearbox Oil Level ___________ 62
Changing Gearbox Oil ________________ 62
Gear Axle Lubrication _________________ 62
Hydrostatic Transmission Fluid _________ 63
Checking Hydrostatic
Transmission Fluid Level ______________ 63
Grease Fitting and Oil Point Lubrication__ 63
CLEANING ____________________________ 66
Engine Air Cleaner System_____________ 66
Turbine Precleaner __________________ 66
Donaldson Radialseal™ Air Cleaner _____ 67
Engine Cooling System - MT and MTEFI __ 68
Air Intake System ___________________ 68
Cylinder Head Cooling Fins ____________ 69
Engine Cooling System - MTL and MTLEFI 69
Radiator Screen and Cooling Fins ______ 69
Flushing Radiator and Changing Coolant _70
Grass Buildup in Mower Housing________ 70
GHS Blower _________________________ 71
GHS Exhaust Screen __________________ 71
Hydrostatic Transmission Cooling Fins __ 71
CHECKING/SERVICING _________________ 72
Engine Cooling System - MTL and MTLEFI 72
Coolant Level ______________________ 72
Security of Air Filtration Components ____ 72
Battery______________________________ 73
Electrolyte Level ____________________ 73
Cleaning the Terminals _______________ 73
Charging the Battery _________________ 73
Tire Pressure ________________________ 74
Wheel Bolt Torque ____________________ 74
Sharpen Mower Blades ________________ 74
Drive Belts __________________________ 75
Mower Deck Gearbox Oil Seals
_____________________ 75
Spark Plugs _
Ignition Wires________________________ 75
Fuel Lines and Clamps ________________ 75
Radiator Hoses and Clamps MTL and MTLEFI _____________________ 76
Blade Brake Action ___________________ 76
PTO U-Joints ________________________ 76
Safety Switch System _________________ 76
Forward Speed Control Friction Lock____ 76
REPLACING/REPAIRING ________________ 77
Drive Belts __________________________ 77
Engine PTO Drive Belt _______________ 78
Jackshaft Drive Belt _________________ 79
GHS Blower Drive Belt _______________ 80
Hydrostatic Ground Drive Belt _________ 81
Fuel Filter - Model MT and MTL _________ 82
Fuel Filter - MTEFI and MTLEFI _________ 82
Blade Overload Shear Bolts ____________ 83
PTO Shear Pin _______________________ 83
Mower Blades _______________________ 84
ADJUSTMENTS________________________ 85
Steering Levers ______________________ 85
Tilt-Up Deck Adjustable Stop ___________ 85
GHS Signal Horn Adjustment
(When Horn Sounds at Wrong Time)_____ 86
___
_________ 75
Warranty___________________________ 87
General Information
HIGHLIGHTED INFORMATION
Walker Manufacturing recommends that any service
requiring special training or tools be performed by
an authorized Walker Mower Dealer . There are several general practices to be aware of in the area of
safety. Most accidents associated with the operation or maintenance of a Walker Mower are caused
by disregarding basic safety precautions or specific
warnings. Such accidents, in most cases, can be
prevented by being aware of the dangers present.
Information of special importance has been highlighted in bold type in this manual. Refer to Safety
Instructions for the meanings of DANGER, WARNING, CAUTION, IMPORTANT, and NOTE.
GLOSSARY
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 moun ted on
the front of the tractor which includes the carrier
frame, deck housing, blade drive gearboxes,
and cutter blades.
LEFT HAND (LH) refers to the left-hand side of
the tractor when the operator is se ated facing
forward in the tractor seat.
POWER TAKE-OFF (PTO) transmits engine
power to run the cutter blades and GHS blower .
POWERFIL
throughout the interior of the grass catcher by
an oscillating delivery spout.
spreads the mowed material
RIGHT HAND (RH) refers to the right-hand side
of the tractor when the operator is seated facing
forward in the tractor seat.
SIDE DISCHARGE (SD) mows but does not
collect the mowed material.
STEERING LEVERS steer the tractor by con-
trolling the dual hydrostatic transmissions.
TRACTOR is the prime mover , including the en-
gine, drive train, operator seat, and controls to
operate the mower.
TRANSMISSION LOCKOUT releases the hy-
drostatic transmissions to permit freewheeling
the tractor.
ELECTRONIC CONTROL UNIT (ECU) controls
engine functions such as spark timing, fuel/air
ratio, etc.
FORW ARD 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
grass delivery spout (in the catcher) and activates the “full” signal horn when the grass
catcher is full.
SWITCH is mounted on the
) collects
GROUND DRIVE refers to the dual hydr os tatic
transmissions which drive the main wheels.
HYDROSTATIC TRANSMISSION transmits
and controls power from the ground drive belt to
the main drive wheel.
IDENTIFYING NUMBER LOCATIONS
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
alongside 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. For ready reference,
please record these numbers in the space pr ovided.
Tractor Model No. _______________________
Tractor Serial No. _______________________
Deck Serial No. _______________________
Engine Model No. _______________________
Engine Serial No. _______________________
Date of Purchase _______________________
Fill In By Purchaser
1
General Information
Serial Number
Serial Number
Serial Number
Serial Number
Tractor Serial Number Location
Mower Deck Serial Number Location
ENGINE SERIAL NUMBER LOCATION
Refer to the engine manual th at accompanies this
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.
Engine Serial Number Location
(MTL and MTLEFI)
SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS
The detailed servicing and repair of the engine,
hydrostatic transmission, and gearboxes are not
covered in this manual. Only routine maintenance
and general service instructions are provided. For
the service of these components during the limited
warranty period, it is important to find a local,
authorized servicing agent of the component manufacturer. Any unauthorized work done on these
components during the warranty period may void
the warranty. If you have any difficulty find ing an
authorized outlet or obtaining warranty service,
please contact our Service Department for assistance:
Walker Manufacturing Company
5925 E. Harmony Road
Fort Collins, CO 80528
1-970-221-5614
Service manuals are available for each of these
components from their respective ma nufacturers as
follows:
2
Engine Serial Number Location
(MT and MTEFI)
Kohler Engines Kohler Company
Kohler, WI 53044
800-544-2444
www.kohlerengines.com
Hydrostatic Eaton Corporation
Transmissions 15151 Highway 5
Eden Prairie, MN 55344
Gearboxes (Deck) Tecumseh Power Co.
1555 S. Jackson Street
Salem, IN 47167
812-883-3575
Specifications
MODEL
AIR COOLED
MT (23.0 HP)
MTEFI (26.0 HP)
ENGINE
Manufacturer/Model Kohler Command Pro
CH23, 2 Cyl., Gasoline
(Air-Cooled)
Kohler Command Pro
CH26, 2 Cyl., Gasoline (AirCooled), Electronic Fuel
Injection (EFI)
Displacement CH23/CH680 41.1 cu. in. (674 cc)
Displacement CH26/CH735 44.0 cu. in. (721 cc)
Displacement LH685 41.1 cu. in. (674 cc)
Displacement LH775 45.6 cu. in. (748 cc)
HP (@ 3600 RPM) CH23/CH680 23.0
HP (@ 3600 RPM) CH26/CH735 26.0
HP (@ 3600 RPM) LH685 25.0
HP (@ 3600 RPM) LH775 31.0
Max. RPM (No Load)
Governed RPM 3600 3600
Max. Torque [ft-lb (N
Idle RPM 1200 75 1200 75
Spark Plug Type Champion
Spark Plug Ga p .030 in. (.76 mm) .030 in. (.76 mm)
Crankcase Capacity 1.7 qts (1.6 liters) 1.7 qts (1.6 liters)
Crankcase Lubricant API SG, SH, SJ or higher
Oil Filter 12 050 01 S 12 050 01 S
Cooling System CH23/CH680
Cooling System CH26/CH735 Air-Cooled
Cooling System LH685
Cooling System Capacity
(Approx.) LH685/LH775
Coolant 50/50 Pre-Mix Anti-freeze/
Cooling Fan Electric radiator cooling fan
Fuel Tank Capacity 5 Gallons (19.0 liters) 5 Gallons (19.0 liters)
Fuel Regular Grade Unleaded
·m) @ RPM]
CH23/CH680 37.9 (51.4) @ 2400
CH26/CH735 41.6 (56.4) @ 2700
LH685 35.9 (48.7) @ 2200
LH775 45.4 (61.6) @ 2400
LH775
3750
RC12YC Champion RC14YC
Grade Oil Only with 10W-30
Viscosity above 0° F (-18° C),
or 5W-20 or 5W-30 Viscosity
below 32° F (0° C)
Air-Cooled
Gasoline (87 Octane)
LIQUID COOLED
MTL (25.0 HP)
MTLEFI (31.0 HP)
TM
Kohler Aegis
Gasoline (Liquid-Cooled)
Kohler AegisTM LH775, 2 Cyl.,
Gasoline (Liquid-Cooled),
Electronic Fuel Injection (EFI)
3750
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)
Liquid-Cooled
Liquid-Cooled
1.25 Gallons (4.73 liters)
water
with reversible self-cleaning
action
Regular Grade Unleaded
Gasoline (87 Octane)
LH685, 2 Cyl.,
3
Specifications
MODEL
AIR COOLED
MT (23.0 HP)
MTEFI (26.0 HP)
ELECTRICAL SYSTEM
Battery 12 Volt, 35AH, 295 CCA 12 Volt, 41AH, 340 CCA
Charging System Flywheel Alternator Flywheel Alternator
Charging Output
CH23/CH680
CH26/CH735
System Polarity Negative Ground Negative Ground
Ignition Electronic Capacitive
Starter 12 Volt Electric Ring-Gear
Interlock Switch Ignition Lockout by Seat
Circuit Breaker
LH685
LH775
TRANSMISSION
Manufacturer/Model Dual Hydrostatic, Eaton
Steering Hand Lever Control /
Forward Speed Control Precision Friction Lock Lever,
15 Amp DC (Regulated)
25 Amp DC (Regulated)
Discharge
Type, Solenoid Shift
Switch, Transmission Neutral
and Blade Clutch
Auto Reset (30A)
Model 7, Each Wheel
Independently Driven
Individual Wheel
Cruise Control, with
Neutral-Park Position
LIQUID COOLED
MTL (25.0 HP)
MTLEFI (31.0 HP)
(Interstate U1-SP40)
25 Amp DC (Regulated)
Electronic Capacitive
Discharge
12 Volt Electric Ring-Gear
Type, Solenoid Shift
Ignition Lockout by Seat
Switch, Transmission Neutral
and Blade Clutch
Auto Reset (30A)
Auto Reset (40A)
Dual Hydrostatic, Eaton
Model 7, Each Wheel
Independently Driven
Hand Lever Control /
Individual Wheel
Precision Friction Lock Lever,
Cruise Control, with
Neutral-Park Position
Service Brake Dynamic Braking through
Hydrostatic Transmission
Parking Brake Mechanical Pin Lock in
Transmission Gear
Neutral Transmission Release by
Manual Dump Valve
Final Drive Gear Drive Axle Gear Drive Axle
Transmission Fluid
Factory Service Mobil 1 Synthetic Motor Oil
(15W-50)
Alternate Transmission Fluid SAE 30W Straight Viscosity
Motor Oil
Transmission Fluid Capacity 1 qt (1 liter) 1 qt (1 liter)
Transmission Cooling Cooling Fan Mounted on
Drive Pulley
4
Dynamic Braking through
Hydrostatic Transmission
Mechanical Pin Lock in
Transmission Gear
Transmission Release by
Manual Dump Valve
Mobil 1 Synthetic Motor Oil
(15W-50)
SAE 30W Straight Viscosity
Motor Oil
Cooling Fan Mounted on
Drive Pulley
Specifications
MODEL
AIR COOLED
MT (23.0 HP)
MTEFI (26.0 HP)
TRANSMISSION (continued)
Ground Travel Speed
Forward m.p.h. (km/h)
Reverse m.p.h. (km/h)
BLADE DRIVE
PTO Shaft Quick Disconnect Splined
Blade Spindle Each Blade (2) Mounts Direct
Blade Drive Clutch and Brake Manual Belt Tightener Clutch
Max. Blade Speed
[22 in. (56 cm) Blade]
@ 3600 RPM Engine
0-5 (0-8) Infinitely Variable*
0-5 (0-8) Infinitely Variable
* 6.5 m.p.h. with Optional Speed-Up Kit
Shaft with Tw o High-Speed
U-Joints
on Peerless Right Angle
Gearbox with Tee Gearbox
in Center Connected to PTO
Shaft (Complete Geared
Drive, Peerless Model 1000
Gearboxes)
and Band Brake [Stops
Blades within Five (5)
Seconds of Disengagement]
2900 RPM
[16700 FPM (5090 m/min)]
LIQUID COOLED
MTL (25.0 HP)
MTLEFI (31.0 HP)
0-7 (0-11) Infinitely Variable
0-7 (0-11) Infinitely Variable
Quick Disconnect Splined
Shaft with Two High-Speed
U-Joints
Each Blade (2) Mounts Direct
on Peerless Right Angle
Gearbox with Tee Gearbox
in Center Connected to PTO
Shaft (Complete Geared
Drive, Peerless Model 1000
Gearboxes)
Manual Belt Tightener Clutch
and Band Brake [Stops
Blades within Five (5)
Seconds of Disengagement]
2900 RPM
[16700 FPM (5090 m/min)]
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 8 x 3.00-4 Foamed Rubber
Drive 18 x 9.50-8 (4-Ply) 18 x 9.50-8 (4-Ply)
Drive (Optional Wide Tire) 18 x 10.50-10 (4-Ply) 18 x 10.50-10 (4-Ply)
Rear (Dual) 13 x 5.00-6 (4-Ply) 13 x 5.00-6 (4-Ply)
TIRE PRESSURE
Deck Caster Wheel 20 PSI (137 kPa) 20 PSI (137 kPa)
Drive 15 PSI (103 kPa) 15 PSI (103 kPa)
Rear 20 PSI (137 kPa) 20 PSI (137 kPa)
DIMENSIONS (Tractor and Mower)**
Length 91 in. (231 cm) 91 in. (231 cm)
Width 49 in. (124 cm) 49 in. (124 cm)
Height 49 in. (124 cm) 49 in. (124 cm)
Wheel Base (Tractor) 42-1/4 in. (107 cm) 42-1/4 in. (107 cm)
Tread Width (Tractor) 29-3/4 in. (76 cm) 29-3/4 in. (76 cm)
8 x 3.00-4 Pneumatic (4-Ply)
11 x 4.00-5 Pneumatic
8 x 3.00-4 Pneumatic (4-Ply)
11 x 4.00-5 Pneumatic
5
Specifications
MODEL
AIR COOLED
MT (23.0 HP)
MTEFI (26.0 HP)
MOWER DECK
Width of Cut SD/GHS 42 or 48 in. (107 or 122 cm) 42 or 48 in. (107 or 122 cm)
Cutting Height 1 to 4 in. (3 to 10 cm) 1 to 4 in. (3 to 10 cm)
Height Adjustment 7 Positions - 1/2 in. (1 cm)
Increment Hitch Pins Installed
in Multi-Position Deck Support
Blade Size (Typical)
42 in. (107 cm) SD 22 in. (56 cm)
2 in. (5 cm) Center Overlap
(Two Blades, CW Rotation)
48 in. (122 cm) GHS 25 in. (64 cm)
2 in. (5 cm) Center Overlap
(Two Blades, Counter Rotate)
Deck Suspension Torsion-Flex Frame with
Caster Wheels and
Counterweight Springs
CURB WEIGHT (Approximate)
SD Tractor Only 664 lb (301 kg) MT
672 lb (305 kg) MTEFI
GHS Tractor Only 786 lb (357 kg) MT
796 lb (361 kg) MTEFI
Tractor and Mower** 984 lb (446 kg) MT
994 lb (451 kg) MTEFI
LIQUID COOLED
MTL (25.0 HP)
MTLEFI (31.0 HP)
7 Positions - 1/2 in. (1 cm)
Increment Hitch Pins Installed
in Multi-Position Deck Support
22 in. (56 cm)
2 in. (5 cm) Center Overlap
(Two Blades, CW Rotation)
25 in. (64 cm)
2 in. (5 cm) Center Overlap
(Two Blades, Counter Rotate)
Torsion-Flex Frame with
Caster Wheels and
Counterweight Springs
706 lb (320 kg) MTL
718 lb (326 kg) MTLEFI
829 lb (376 kg) MTL
841 lb (382 kg) MTLEFI
1027 lb (466 kg) MTL
1039 lb (471 kg) MTLEFI
DRIVE BELTS
Engine PTO Walker P/N 8230 Walker P/N 8230
Jackshaft Drive Gates 3VX375
(or Walker P/N 6250)
Ground Drive, Micro-V Walker P/N 7248 Walker P/N 7248
Blower (GHS Model) Gates 3VX280
(or Walker P/N 7234-2)
GHS SYSTEM (Optional)
Blower 4-1/2 x 10-1/2 x 1/2 in.
(11 x 27 x 1 cm) Three-Blade
Paddle Wheel (Driven by
Mower Engine)
Blower Brake Band Brake [Works in Combi-
nation with PTO Clutch, Stops
Blower within Five (5) Seconds
of PTO Disengagement]
Max. Blower Speed 4000 RPM 4000 RPM
Hi-Dump Option
Max. Lift Capacity
200 lb (91 kg) 200 lb (91 kg)
Gates 3VX375
(or Walker P/N 6250-1)
Gates 3VX280
(or Walker P/N 7234-2)
4-1/2 x 10-1/2 x 1/2 in.
(11 x 27 x 1 cm) Three-Blade
Paddle Wheel (Driven by
Mower Engine)
Band Brake [Works in Combination with PTO Clutch, Stops
Blower within Five (5) Seconds
of PTO Disengagement]
6
Specifications
MODEL
AIR COOLED
MT (23.0 HP)
MTEFI (26.0 HP)
GHS SYSTEM (Optional) (continued)
Grass Catcher Capacity 93 Gallons (352 liters)/
10.0 Bushels
Optional Grass Catcher
Capacity
Full Signal (Grass-Pak
Powerfil
SEAT
FRAME/BODY CONSTRUCTION
Frame All Welded Unitized Steel
Body 14 Gauge Steel 14 Gauge Steel
Deck 11 Gauge Steel 11 Gauge Steel
GHS Catcher and Chutes Molded Cross-Linked
®
®
Switch) Oscillating Vane Switch
65 Gallons (247 liters)/
7.0 Bushels
Mounted on Grass Delivery
Spout Triggers Horn Signal
Oscillating Delivery Spout
Driven by 12 Volt Electric
Gearmotor Spreads Material
throughout Interior of Catcher
@ 25 Cycles/Minute
Contour-Molded, with Nylon
Backed Vinyl Cover and
Integral Foam Cushion
Chassis
Polyethylene (UV Stabilized)
LIQUID COOLED
MTL (25.0 HP
MTLEFI (31.0 HP)
93 Gallons (352 liters)/
10.0 Bushels
65 Gallons (247 liters)/
7.0 Bushels
Oscillating Vane Switch
Mounted on Grass Delivery
Spout Triggers Horn Signal
Oscillating Delivery Spout
Driven by 12 Volt Electric
Gearmotor Spreads Material
throughout Interior of Catcher
@ 25 Cycles/Minute
Full Spring Suspension with
Dampening and Adjustments
for Back Angle, Lumbar
Support, and Operator Weight.
Standard with Armrests
All Welded Unitized Steel
Chassis
Molded Cross-Linked
Polyethylene (UV Stabilized)
**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 188 cm), with corresponding deck weights ranging from 170 to 400 lb (77 to 181 kg).
Optional (7.0 Bushel) Grass Catcher subtracts 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.
7
Component Identification
NOTE: Control Identification
shown in Operating
Instructions section.
Grass Handling System
10.0 Bushel Catcher Standard
7.0 Bushel Catcher (Optional)
(Not Shown)
Anti-Scuff
Roller
Deck
Caster Wheels
Counterweight S pring
and Protective Cover
Tilt-Up
Latch
Transmission Control Rod
Adjustment Nut (RH)
Transmission Control Rod
Adjustment Nut (LH)
Deck Lift Handle
(Cutting Height Adjustment)
Tilt-Up
Deck Handle
Catcher Lift /
Dump Handle
Turbine
Precleaner
Fuel Tank
and Cap
Deck Support Pins
and Height Adjustment
Hitch Pins
Footrests
Tilt-Up
Hook
Deck Support
Arm (LH)
Spring Clip
8
Front View and Right Side View
Component Identification
Catcher Door
Gas Spring
Instrument Panel
Guard
Left Hand
Drive Wheel
Catcher
Door
Fuel Filter
(Not Visible)
Removable Grass
Catcher Screen
(Not Visible)
Catcher Lift /
Dump Handle
Instrument Panel Box
(Shock Mounted)
Oil Drain
Plug
Muffler
Oil
Filter
Catcher
Door Handle
Anti-Scuff
Roller
Dump
Plate
Tailpipe
Tailwheel Fork
and Wheels
Rear View and Left Side View
9
Component Identification
Air Restriction Indicator
Muffler Grass
Shield
Throttle and
Choke Linkage
Oil Dipstick/Oil Fill
Rubber Bumper
(Catcher Support)
20 Amp Fuse
(Starter Solenoid)
GHS Blower
RH Hydrostatic
Transmission
PTO
Clutch Lever
RH Transmission
Lockout Lever
PTO Gearbox
Dipstick
Jackshaft
Positive (+)
Battery Cable
Battery
Donaldson Air Cleaner
LH Transmission
Lockout Lever
LH Hydrostatic
Transmission
Fuel Tank
Air Cleaner
Cover
Fuel Filter
Fuel Pickup
Line
Neutral Safety
Switch
Negative (-)
Battery Cable
Model MT
30 Amp
Circuit Breaker
Turbine
Precleaner
Fuel Pump
Muffler Heat
Shield
Air Intake
Plenum
Air Intake Hose
Precleaner
Tube
Muffler
10
Top View (Engine Compartment) Model MT
Component Identification
Air Restriction Indicator
Muffler Grass
Shield
Oil Dipstick/Oil Fill
Throttle Linkage
Precleaner
Tube
Fuel Tank
Air Cleaner Cover
Air Intake Hose
Fuel Return Line
Model MTEFI
Fuel Pickup Line
Muffler
Air Intake
Plenum
Ignition
Coil
Rubber Bumper
(Catcher Support)
Fuel Pump
Fuel Line to Engine
(High Pressure)
Donaldson Air Cleaner
Top View (Engine Compartment) Model MTEFI
11
Component Identification
Precleaner
Tube
Model MTL and MTLEFI
Muffler
Muffler Grass
Shield
Throttle Linkage
(Not Visible)
Radiator Cap
Radiator
Hose
Radiator
Guard
Radiator
Air Intake
Plenum
Fuel Tank
Air Intake Hose
Overflow
Tank
Overflow
Hose
Donaldson Air Cleaner
Air Cleaner
Cover
Fuel Pump
(Not Visible)
Air Restriction Indicator
(Not Visible)
Fuel Line to Engine
(High Pressure)
Bottom of Tank
(MTLEFI)
Oil Dipstick/
Oil Fill
Oil Pressure
Switch
Rubber Bumper
(Body Support)
Fuel Pickup
Line (MTL)
Fuel Return Line
(MTLEFI)
12
Top View (Engine Compartment) Model MTL and Model MTLEFI (Model MTLEFI Shown)
Safety Instructions
Pay particular attention to any information labeled
DANGER, WARNING, CAUTION, IMPORTANT,
and NOTE in this manual.
When you see the Safety Alert Symbol ( ),
read, understand, and follow the instructions. Failure to comply with safety instructions may result in
personal injury.
The seriousness or degree of importance of each
type of information is defined as follows:
DANGER
An IMMEDIATE hazard that WILL result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
WARNING
A POTENTIAL hazard that COULD result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
Walker Manufacturing cannot predict every potentially dangerous situation. Therefore, items labeled
as such in this manual do not cover all conceivable
situations. Any person using procedures, tools, or
control techniques not recommended by Walker
Manufacturing must take full responsibility for safety.
The Walker Rider Lawnmower has been designed
with many safety features to protect the operator from
personal harm or injury . However , it is necessary for
the operator to use safe operating procedures at all
times. Failure to follow safety instructions con-
tained in this manual may result in personal injury or damage to equipment or property.
If you have any questions concerning setup, operation, maintenance, or safety, please contact your
authorized Walker Mower dealer or call Walker
Manufacturing Company at (970) 221-5614.
BEFORE OPERATING
1. Read and understand the contents of this
Owner's Manual before starting and operating the machine. Become thoroughly familiar
with all machine controls and how to stop the
machine and disengage the controls quickly.
Replacement Owner's Manuals are available
by sending the Model and Serial Number to:
CAUTION
Possible hazards or unsafe practices that
MAY result in MODERATE personal injury
or property damage, or machine damage, if
warning is ignored and proper s afety precautions are not taken.
IMPORTANT: Identifies mechanical information
demanding special attention, since it deals with the
possibility of damaging a part or parts of the machine.
NOTE: Identifies information worthy of special
attention.
Walker Manufacturing Company
5925 East Harmony Road
Fort Collins, CO 80528
2. Never allow children to operate rider mower.
Do not allow adults to operate without proper
instruction.
3. Clear the area to be mowed of any foreign
objects which may be picked up and thrown by
cutter blades. Pick up all sticks, stones, wire,
and any other debris.
4. Keep ever yone, e specia lly child ren a nd pets, a
safe distance away from the area being mowed.
Do not mow with bystanders in the area.
5. Do not operate the machine barefoot or wearing
sandals, sneakers, tennis shoes, or similar
lightweight footwear. Wear substantial pro-
tective footwear.
13
Safety Instructions
6. Do not wear loose fitting clothing that could get
caught in moving parts. Do not operate this
machine while wearing shorts; always wear
adequate protective clothing, including long
pants. Wearing safety glasses, safety shoes,
and a helmet is advisable and required by some
local ordinances and insurance regulations.
7. Prolonged exposure to loud noise can cause
impairment or loss of hearing. Operator hear-
ing protection is recommended; particularly
for continuous operation of the GHS Model due
to blower noise level. Wear a suitable hearing
protective device, such as earmuffs or earplugs.
8. Keep all protective shields and safety de-
vices in place. If a protective shield, safety
device, or decal is damaged, unusable, or missing, repair or replace it before operating the machine.
9. Be sure interlock switches are functionin g
correctly, so the engine cannot be started unless the Forward Speed Control lever is in the
NEUTRAL-PARK position, and the PTO clutch
is in the DISENGAGED position. Also, the engine should stop if the operator lifts off the seat
with either the Forward Speed Control (FSC)
out of the NEUTRAL-PARK position or the PT O
clutch in the ENGAGED position.
11. Never attempt to make any adjustments
while the engine is running, except where
specifically instructed to do so.
12. The electrical system battery contains sulfuric
acid. Avoid any contact with skin, eyes, and
clothing. Keep the battery and acid out of reach
of children.
WARNING
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects
or other reproductive harm.
NOTE: There is a 1 to 1-1/2 second time delay
function on the seat switch to avoid engine
power interruption when driving over bumps.
10. Handle gasoline with care. Gasoline is highly
flammable and its vapors are explosive:
a. Use an approved fuel container.
b. Never add fuel to a running engine or hot
engine (allow hot engine to cool several
minutes).
c. Keep matches, cigarettes, cigars, pipes,
open flames, or sparks away from the fuel
tank and fuel container.
d. Always fill the fuel tank outdoors using
care. Fill to about one inch from the top of
the tank. Use a funnel or spout to prevent
spilling.
e. Replace the machine fuel cap and con-
tainer cap securely and clean up any
spilled fuel before starting the engine.
14
Safety Instructions
OPERATING
1. Operate the mower only in daylight or in
good artificial light with good visibility of the area
being mowed.
2. Sit on the seat when starting the engine and
operating the machine. Keep feet on the deck
footrests at all times when the tractor is moving
and/or mower blades are operating. Never op -
erate the tractor without a deck or implement
installed.
3. For a beginning operator, learn to steer (maneuver) the tractor with a slow engine speed
before attempting any mowing operation.
Be aware that, with the front mounted mower
configuration, the back of the trac tor swings to
the outside during turns.
DANGER
Do not mow around overhanging tree
branches or bushes at the same height as
the operator’s torso and head where inadvertent contact may cause injury.
7. Do not operate machine if the operator pres-
ence safety switch system is not working.
Verify proper operation by having the operator
lift off the seat with the engine running and moving two controls, one at a time; (1) Move the
FSC lever out of the NEUTRAL-PARK position,
and (2) Engage the PT O Clutch. Movin g e ither
control should stop the engine after a 1-1/2 second delay.
8. Do not run the engine in a confined area
without adequate ventilation. Exhaust fumes
are hazardous and can be deadly.
9. Do not carry passengers - maximum seating
capacity is one (1) person.
10. Watch for holes, rocks, and roots in the terrain
and for other hidden hazards. When mowing tall
grass, mow higher than desired to expose any
hidden obstacles. Then, clean the area and
mow to the desired height.
11. Avoid sudden start s or stops. Before backing
the machine up, look to the rear to be sure no
one is behind the machine. Watch carefully for
traffic when crossing or working near roadways.
4. Remember , for an emergency stop , the forward
motion of the tractor can always be stopped by
pulling the Forward Speed Control (FSC) into
the NEUTRAL-PARK position.
5. In case either of the transmission drive belts
break during operation, and if the machine is on
a slope, the machine will freewheel down the
slope. To maintain control, immediately (1)
Release the steering levers and simultaneously
(2) Move the FSC to the NEUTRAL-PARK position. When the machine is stopped or moving
slowly, engage the parking brake.
NOTE: The emergency stop procedure is
exactly the same procedure as used to normally stop and park this machine.
6. Disengage the blade clutch and put the FSC in
the NEUTRAL-PARK position before starting
the engine (an ignition interlock switch normally
prevents starting of the machine if these controls are in the OPERATING positio n).
12. Disengage the blade drive when transporting
the machine across drives, sidewalks, etc. Ne-
ver raise the mower deck while blades are
rotating.
DANGER
Do not mow or dump grass within 5 f eet
(1.5 meters) of an embankment or retaining wall with drop off.
13. The maximum recommended side slope operating angle is 20 degrees or 33% grade.
When operating the machine on a slope, reduce speed and use caution to start, stop, and
maneuver. To prevent tipping or loss of control
of the machine, avoid sharp turns or sudden
changes in direction.
14. Ne ver adjust cutting h eight with the engin e
running. Before adjusting cutting height or
servicing, disengage the blade clutch (PTO),
stop the engine, and remove the ignition key.
Wait for all movement to stop before getting off
the seat.
15
Safety Instructions
NOTE: A blade/blower brake should normally
stop drive line rotation within five (5) seconds of
disengaging the PTO clutch.
15. For side discharge mower decks, do not
operate with the grass deflector chute
removed. Keep the deflector in the lowest
possible position.
16. For tractors equipped with tilt-up deck, observe
the following recommendations:
a. Do not move tractor with deck in tilt-up po-
sition.
b. Never tilt body forward with deck in tilt-up
position.
17. For GHS equipped models, do not operate the
machine with the grass catcher in the DUMP
position or with the back door OPEN. Dan-
gerous projectiles may be thrown out of the discharge chute or the back of the grass catcher.
18. For GHS equipped models, use care when
closing the grass catcher door . Keep fingers
and hands away from the hinge and pinch
points when the door is being closed. Also,
keep fingers and hands clear of the door frame.
The door may slam shut with considerable
force.
19. In case of a clogged or plugged mower deck
or GHS catching system:
20. If the cutting blades strike a solid object or the
machine begins to vibrate abnormally, immedi-
ately disengage the blade clutch (PTO), stop
the engine, and wait for all moving parts to
stop. T o prevent accidental starting, disconnect
the spark plug wires. Thoroughly inspect the
mower and repair any damage be fore restarting
the engine and operating the mower . Make sure
cutter blades are in good condition and blade
nuts are torqued to 60 ft-lb (81.3 N
21. Do not touch the engine or muffler while the
engine is running or immediately after stopping
the engine. These areas may be hot enough to
cause serious burns.
22. When leaving the machine unattended, dis-
engage the blade clutch (PTO), stop the engine, and remove the key.
23. For Model MTL and MTLEFI, never remove
the radiator pressure cap when the engine
is hot (hot water may spray and cause
burns).
·m).
CAUTION
Use leg muscles and firm footing when lifting the catcher to dump; avoid bending at
the waist and using back muscles to avoid
back injury.
16
a. Disengage the blade clutch (PT O) and turn
the engine off before leaving the seat.
b. LOOK to make sure blade drive shaft and
blower drive pulley movement has stopped
before trying to unclog the system.
c. Disconnect the spark plug wires.
d. Never place hands under the deck or in the
GHS blower - use a stick or similar tool to
remove clogged material.
Safety Instructions
MAINTENANCE
1. To prevent accidental starting of the engine
when servicing or adjusting the machine, remove the key from the ignition switch and disconnect the spark plug wires.
2. T o reduce fire hazards, keep the engine free of
grass, leaves, excessive grease, and dirt.
3. Keep all nuts, bolts, and screws tigh t to ensu re
the machine is in a safe, working condition.
Check the blade mounting nuts frequently , making sure they are tight.
4. Perform only maintenance instructions de-
scribed in this manual. Unauthorized maintenance operations or machine modifications
may result in unsafe operating conditions.
5. If the engine must be running to perform a maintenance adjustment, keep hands, feet, and
clothing away from moving parts. Do not wear
jewelry or loose clothing.
6. Always use the proper engine service manual when working on the engine. Unautho-
rized maintenance operations or modifications
to the engine may result in unsafe operating
conditions.
11. Use care when charging the battery or performing maintenance on the battery and electrical system:
a. Make sure the battery charger is unplugged
before connecting or disconnecting cables
to the battery.
b. Charge the battery in a well-ventilated
space, so gases produced while charging
can dissipate. Make sure the battery vents
in the caps are open.
c. Keep sparks, flames, and smok ing materi-
als away from the battery at all times. To
avoid sparks, use care when removing battery cables from posts.
d. Disconnect both battery cables before
unplugging any wiring connectors or making repairs on the electrical system.
IMPORTANT: Keep all applicable manuals
immediately accessible to anyone who may
operate or service this machine.
7. Altering the equipment or engine in any manner
which adversely affects its operation, performance, durability, or use will VOID the warran-
ty and may cause hazardous conditions.
8. Never attempt to disconnect any safety devices
or defeat the purpose of these safety devices.
9. Do not change the engine governor settings or
overspeed the engine. The governor has been
factory-set for maximum-safe engine operating
speed.
10. Use genuine factory replacement parts.
Substitute parts may result in product malfunction and possible injury to the operat or and/or
others.
17
Safety Instructions
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety, Control, and Instruction Decals are installed on the machine;
if any are missing, illegible, or damaged, a replacement should be ordered and installed before
putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual.
Each End of Mower Deck (5808 All Decks Except 52, 56, 74)
(5808-1 52, 56, 74 Decks)
Rear Cross Member of Front Body (MT and MTEFI, 8825)
SD Deck Discharge Shield (5848)
On Body Adjacent to Clutch
Control Lever (5806)
Top of Body Grass Shield (MTL and MTLEFI, 8825)
Battery Hold-Down Bar (MTEFI and MTLEFI only, 5844-2)
Rear of Grass Catcher Exhaust Screen (5869)
Adjacent to Blower Discharge Chute
through Body (5804)
Engine Shroud (5855)
18
Front Body Adjacent to
RH Steering Lever (7818)
Right Side, Behind
Operator Seat (8400-6)
Right Side, Below Operator Seat (7809)
Left Side of Operator Seat (8819)
Left Side of Operator Seat (7819)
Safety Instructions
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety, Control, and Instruction Decals are installed on the machine;
if any are missing, illegible, or damaged, a replacement should be ordered and installed before
putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual.
Bridge Assembly and LH Gear Axle (5810-3)
Deck Carrier Frame (8647)
Deck Gearbox Cover (5807-3)
Deck Carrier Frame (8653)
Deck Carrier Frame (5865)
Top of Blower Housing (5819)
Catcher Door Hinge Bar,
LH and RH Sides (5868)
On Engine (6810)
Catcher Safety Latch,
RH Side (5874)
(7.0 Catcher only)
Gear Axle (5810-1)
Jackshaft Support Adjacent
Hydrostat Oil
Reservoir
to Dipstick (7827)
Instrument Panel MT (8823-2), MTEFI (8823-3), MTL (8823-4), MTLEFI (8823-5)
Fender, RH Side (7802)
19
Assembly Instructions
SETUP INSTRUCTIONS
Walker Mowers are shipped partially assembled.
After uncrating the tractor and mower deck, initial
setup is required.
NOTE: During the process of unpacking, any damaged or missing parts sh ould be note d and reporte d
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.
Tire Installation (Tractor)
Install the drive tires using the eight (8) lug bolts
that are supplied with the owne r's packet of ma terials. Bolts are torqued to 75 to 85 ft-lb. Drive tires are
18 x 9.50-8, 4-ply; rear tires are 13 x 5.00-6, 4-ply.
Check and adjust the inflation of the tires. The
tire inflation recommendations are:
Drive = 15 PSI (103 kPa)
Rear = 20 PSI (137 kPa)
Battery Service
CAUTION
Important Battery Service, Inst all ation, and
Changing Tips for MTEFI/MTLEFI:
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 negative (-) battery
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).
Always disconnect negative (-) battery
cable lead before charging battery, and
also unplug harness from ECU before performing any welding on equipment.
Raise front mower body up for battery access (refer
to Front Body Latch Release in Operating Instruc-
tions). 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 th e battery has
been shipped dry, or is wet but needs service, refer
to the following instructions.
IMPORTANT: Make sure battery is securely
mounted in the frame. A loose battery may cause
damage to the case resulting in acid leakage an d severe damage to the machine. A hazard may be cr eated by damage to critical working parts and safety
systems.
Wet Battery Service
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 distilled water to the
bottom of the vent wells.
2. Charge battery. Refer to Battery Charging in
this section.
Dry Battery Service
DANGER
Activating a battery can be dangerous.
The battery should be taken to a reliable
service station, battery store, or power
equipment dealer where a trained technician can activate the batter y safely. DO
NOT attempt to activate the battery unless
you are experienced in battery service
work. The following activation and charging instructions are provided for u se b y a
trained battery technician.
20
Assembly Instructions
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.
T o 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 batt ery 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
Battery Charging.
Battery Charging
DANGER
BA TTERIE S PRODUC E EXPLOSIVE GA SES
Charge the battery in a well-ventilated
area, so that gases produced while 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 re sult 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. Total 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.
21
Assembly Instructions
Battery Clamp
Secured by
Wing Nut(s)
Battery Protector
Plate in Place
(+) Battery Cable
Connection
Spacer Washer
Axle Spacer Tube
Grease Fitting
Locations
Attach Guard
Attach
Chute
Nut on Top
Carrier Frame
Tube Sockets
Battery Installation
IMPORTANT: Make sure battery is securely mounted in the frame. A loose battery may cause damage
to the case resulting in acid leakage and sever e damage to the machine. A hazard may be created by
damage to critical working parts an d safety systems.
Install the battery in the mower as shown in Battery
Installation photo. Connect the positive (+) first and
then the negative (-) cable to the proper battery terminal [red cable and boot connects to the Posi-
tive (+) terminal]. Slide the rubber boot up and over
the battery post, making sure it covers the post completely 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.
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
washers (if used) spin freely without binding.
Deck Caster Wheel Installation
5. Grease the caster wheel bearings and caster
pivot bearings - one grease fitting for each
wheel and each pivot.
Mower Deck Assembly
Deck Caster Wheels Installation
1. Remove the bolt, nut, axle spacer tube, and
2. Fit the axle spacer tube through the wheel hub,
22
Battery Installation
spacer washers from each deck caster wheel
fork.
NOTE: Spacer washers are used only when the
optional foamed rubber deck wheels (8 x 3.00)
are installed.
position the spacer washer on each side of the
hub (if used), and fit the assembly into the wheel
fork.
Deck Discharge Chute Installation (GHS Rear Discharge Models Only)
Mount the discharge chute hinge on top of the deck
discharge opening using the 1/4-20 x 1/ 2 in. socket
button head screw and 1/4-20 ESNA nut. Position
the screw with the head inside of the chute and the
nut on the outside. Attach spring for tilt-up ac tion
from chute to bracket on deck.
Discharge Chute and PTO Shaft Guard
Installation on Rear Discharge Deck
Assembly Instructions
Attach Shield
Roller Wheels
Attach Spring
PTO Tube
Quick Coupler
Installation Tool
Pull Back Spring-Loaded
Coupler Ring
Deck Discharge Shield Installation (Side Discharge Models Only)
Attach the deck side discharge shield by positioning
the shield hinge lug in front of the deck mount and
fastening with two (2) 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 chute attached and in the
lowest possible position.
Discharge Shield Installation
on Side Discharge Deck
PTO Shaft Guard Installation
Position the shaft guard and mount with two (2)
1/4-20 x 1/2 in. bolts.
Tilt-Up Spring and Roller Wheel
Installation on Rear Discharge Deck
Mower Deck Installation on Tractor
Deck Installation
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 Installation
photo for socket location), slide the deck onto
the support arms approximately 3 in. (76 mm).
3. Retract spring-loaded coupler ring on the PTO
Tube (provided in owner’s packet) and insert
coupler tool. Refer to Quick Coupler Installa-
tion Tool photo.
Tilt-Up Roller Wheel Installation
Mount the two (2) tilt-up roller wheels on the brackets on the rear skirt of the deck hous ing using the
P/N 8490 axle bolt, 3/8 in. wave s pring wash er and
3/8-16 in. Whiz locknut. Tighten the axle bolt until
the wheel rolls freely, but is not loose.
Quick Coupler Installation Tool
23
Assembly Instructions
PTO Connection
Grease Deck
Support Arms
Arrows on Shaft and Tube
(used to align when sliding together)
Spring-Loaded Coupler Ring
In Fully Forward Position
Spring Tension Adjustment
Nut Located Under Lower
Spring Hook (Not Visible)
Counterweight Springs Clip
Onto Body With Forward
Body Tilted Up
Hitch Pins
Lock Deck On
Support Arms
4. Reaching under the tractor, join the PTO tube to
the PTO shaft (align arrow decals). Slide the
PTO tube onto the spline shaft on the tractor
PTO gearbox.
NOTE: When installing the DSD52 Mower
deck, make sure to retract the dolly wheel after
mounting the deck on the tractor.
Coupler Ring “Locked” Position
8. 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.)
Mower Deck Installation
(PTO Shaft Connection )
5. Slide the deck the rest of the way on the deck
arms. 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 .
6. Install the hitch pin throug h the hole on th e end
of each support arm to lock the deck in place
(refer to Deck Counterweight Spring Installa-
tion photo). Two (2) hitch pins are included in
the owner's packet of materials.
7. Remove Installation Tool from coupler ring and
make sure the ring has “snapped” securely on
the spline shaft.
IMPORTANT: DO NOT operate tractor with
Quick Coupler Installation Tool installed.
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” Position photo). After installation,
pull on the shaft to check for security .
9. With the counterweight springs connected, the
weight on the deck caster wheels should be
15 to 25 Ib (6.8 to 11.3 kg); this adjustment is
preset at the factory . If re quired, the spring tension can be adjusted by tightening or loosening
the elastic stop nuts located underneath the
lower spring hook, or contact your local dealer if
additional help is required. Refer to Deck
Counterweight Spring Installation photo.
Deck Counterweight Spring Installation
24
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