Walker T Series User manual
Operator’s Manual
Safety, Assembly, Operating, and Maintenance Instructions
Please Read and Save These Instructions
For Safety, Read All Safety and Operation
Instructions Prior to Operating Machine Beginning S/N: 134970
P/N 8000-28
Foreword
Thank you. . .for purchasing a Walker mower. Every effort has been made to provide you with the
most reliable mower on the market, and we are sure you will be among our many satised custom-
ers. If for any reason this product does not perform to your expectations, please contact your local
dealer. Every customer is important to us. Your satisfaction is our goal.
Please. . .read this manual thoroughly! This manual is to be used in conjunction with the engine
manufacturer’s manual for the specic engine on the mower model you have purchased. Before
you operate your new mower, please read this entire manual. Some of the information is crucial for
proper operation and maintenance of this mower - it will help protect your investment and ensure
that the mower performs to your satisfaction. Some of the information is important to your safety
and must be read and understood to help prevent possible injury to the operator or others. If any-
thing 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 clarication before operating or servicing this
mower.
This manual covers Model T30i with the Kohler Aegis LH775 (30 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.
Specications given are based on the latest information available at the time this manual was pro-
duced for a tractor with standard equipment. Optional equipment is available and may affect the
standard specications listed.
Walker Mfg. Co. is continually striving to improve the design and performance of its products. We
reserve the right to make changes in specications and design without thereby incurring any obliga-
tion 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
Specications________________________ 3
ENGINE________________________________ 3
ELECTRICAL SYSTEM ___________________ 3
TRANSMISSION _________________________ 4
BLADE DRIVE __________________________ 4
TIRE SIZE ______________________________ 4
TIRE PRESSURE ________________________ 4
DIMENSIONS (Tractor and Mower) _________ 5
GHS SYSTEM___________________________ 5
MOWER DECK __________________________ 6
DRIVE BELTS ___________________________ 6
SEAT __________________________________ 6
FRAME/BODY CONSTRUCTION ___________ 6
Component Identication ___________ 7
Safety Instructions _________________ 10
BEFORE OPERATING ___________________ 10
OPERATING ___________________________ 12
MAINTENANCE ________________________ 14
SAFETY, CONTROL,
AND INSTRUCTION DECALS _____________ 15
Assembly Instructions______________ 19
SETUP INSTRUCTIONS__________________ 19
Tire Installation (Tractor) _______________ 19
Battery Service _______________________ 19
Wet Battery Service __________________ 19
Dry Battery Service___________________ 20
Battery Charging_____________________ 20
Battery Installation ___________________ 21
Mower Deck Assembly_________________ 21
Deck Caster Wheels Installation _________ 21
Deck Discharge Chute Installation _______ 21
Deck Discharge Deector
Shield Installation ____________________ 22
PTO Shaft Guard Installation ___________ 22
Tilt-Up Roller Wheel Installation _________ 22
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 Throttle ______________________ 29
Forward Speed Control (FSC) __________ 30
Steering Levers______________________ 30
Blade Clutch (PTO)___________________ 30
Parking Brake _______________________ 30
Front Body Latch Release______________ 32
Transmission Lockout Levers ___________ 32
Suspension Seat_____________________ 33
Instrument Panel _____________________ 35
Hourmeter__________________________ 36
Voltmeter __________________________ 36
Oil Pressure Warning Light/Horn ________ 36
Water Temperature Warning Light/Horn ___ 37
Water Temperature Gauge _____________ 37
Engine Service Light__________________ 37
Ignition Switch_______________________ 37
Light Switch (For Optional Lights) ________ 37
Warning Horn _______________________ 37
Circuit Breakers _____________________ 37
STARTING THE ENGINE _________________ 38
ADJUSTING GROUND
SPEED AND STEERING__________________ 38
ENGAGING THE BLADE DRIVE ___________ 40
STOPPING THE MACHINE _______________ 41
ADJUSTING CUTTING HEIGHT____________ 42
TRANSMISSION LOCKOUT ______________ 42
RECOMMENDATIONS FOR MOWING ______ 43
RECOMMENDATIONS FOR TILT-UP DECK
OPERATION/TRANSPORT _______________ 46
GRASS HANDLING SYSTEM (GHS) ________ 47
General Information ___________________ 48
Clogging Checklist____________________ 49
Using the Tilt-Up Deck _________________ 50
Using the GHS Catcher ________________ 50
Powerl ®__________________________ 50
“Full” Signal Horn ____________________ 50
Cleaning the GHS Exhaust Screen _______ 51
Dumping the Catcher __________________ 51
Tailgate Dumping ____________________ 51
Using the Dump Bag__________________ 52
Power Dump Option __________________ 53
Hi-Dump®Option ____________________ 53
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 ______________________ 58
Air Cleaner System____________________ 58
Oil__________________________________ 58
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
DS52 or DS62 Mower Deck Lubrication ___ 61
Mower Deck Spindle Lubrication ________ 61
Tractor PTO Gearbox Lubrication ________ 62
Checking Gearbox Oil Level ____________ 62
Changing Gearbox Oil ________________ 62
Gear Axle Lubrication _________________ 63
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 ________________ 69
Radiator Screen and Cooling Fins _______ 69
Flushing Radiator and Changing Coolant __ 69
Grass Buildup in Mower Deck Housing ___ 69
GHS Blower__________________________ 70
GHS Exhaust Screen __________________ 71
Hydrostatic Transmission Cooling Fins ___ 71
CHECKING/SERVICING__________________ 72
Engine Cooling System ________________ 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__________________________ 75
Ignition Wires ________________________ 75
Fuel Lines and Clamps_________________ 75
Engine Starter________________________ 75
Transmission Control Setting ___________ 76
Neutral-Park ________________________ 76
Straight Ground Tracking ______________ 76
Radiator Hoses and Clamps ____________ 76
Blade Brake Action____________________ 76
PTO U-Joints ________________________ 76
Safety Switch System__________________ 77
Forward Speed Control Friction Lock_____ 77
REPLACING/REPAIRING_________________ 78
Drive Belts___________________________ 78
Engine PTO Drive Belt ________________ 79
Jackshaft Drive Belt __________________ 80
GHS Blower Drive Belt ________________ 81
Hydrostatic Ground Drive Belt___________ 82
Fuel Filter ___________________________ 83
Blade Overload Shear Bolts_____________ 83
Mower Blades ________________________ 84
ADJUSTMENTS ________________________ 85
Transmission Control__________________ 85
Set FSC Travel Limits (Stop)____________ 85
Set Maximum Forward
Travel Speed (Stop) __________________ 86
Neutral Function Adjustment____________ 86
Straight Ground Travel Adjustment _______ 87
Blade Clutch (PTO)____________________ 88
Clutch Engagement/Belt Tension ________ 88
Clutch Disengagement/Brake Action _____ 89
Stop Block Eccentric Adjustment ________ 90
Clutch Idler Pulley Travel Adjustment _____ 90
Blade Brake Band Adjustment __________ 91
Forward Speed Control Friction Lock_____ 92
Steering Handles _____________________ 93
Tilt-Up Deck Adjustable Stop____________ 93
GHS “Full” Signal Horn Adjustment
(When Horn Sounds at Wrong Time)______ 94
Warranty _____________________ 95
General Information
1
HIGHLIGHTED INFORMATION
Walker Manufacturing recommends that any service
requiring special training or tools be performed by
an authorized Walker Mower dealer. There are sev-
eral general practices to be aware of in the area of
safety. Most accidents associated with the opera-
tion or maintenance of a Walker Mower are caused
by disregarding basic safety precautions or specic
warnings. Such accidents, in most cases, can be
prevented by being aware of the dangers present.
Information of special importance has been high-
lighted in bold type in this manual. Refer to Safety
Instructions for the meanings of DANGER, WARN-
ING, 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 denitions 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, belt or gear drive compo-
nents, and cutter blades.
●ELECTRONIC CONTROL UNIT (ECU) con-
trols 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®)collects
mowed material and deposits it in the catcher.
●GRASS-PAK®SWITCH is mounted on the
grass delivery spout (in the catcher) and acti-
vates the “full” signal horn when the grass catch-
er is full.
●GROUND DRIVE refers to the dual hydrostatic
transmissions which drive the main wheels.
●HYDROSTATIC TRANSMISSION transmits
and controls power from the ground drive belt to
the main drive wheel.
●LEFT HAND (LH) refers to the left-hand side of
the tractor when the operator is seated facing
forward in the tractor seat.
●POWER TAKE-OFF (PTO) transmits engine
power to run the cutter blades and GHS blower.
●POWERFIL®spreads the mowed material
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 seated facing
forward in the tractor seat.
●SIDE DISCHARGE (SD) discharges mowed
material from the right side of the mower deck.
●STEERING LEVERS steer the tractor by con-
trolling the dual hydrostatic transmissions.
●TRACTOR is the prime mover, including the en-
gine, drivetrain, operator seat, and controls to
operate the mower.
●TRANSMISSION LOCKOUT releases the hy-
drostatic transmissions to permit freewheeling
the tractor.
IDENTIFYING NUMBER LOCATIONS
The tractor serial number plate is afxed to the trac-
tor body just below the left rear corner of the seat.
The mower deck serial number plate is afxed
alongside the angle iron framing on the LH side of
the LH mower blade drive. Model and serial num-
bers are helpful when obtaining replacement parts
and maintenance assistance. For ready reference,
please record these numbers in the space provided.
Tractor Model No. ______________________
Tractor Serial No. ______________________
Deck Serial No. ______________________
Engine Model No. ______________________
Engine Serial No. ______________________
Date of Purchase ______________________
Fill In By Purchaser
General Information
2
Serial Number
Tractor Serial Number Location
Serial Number
Mower Deck Serial Number Location
ENGINE SERIAL NUMBER LOCATION
Refer to the engine manual that accompanies this
manual or photo below for the location of the engine
serial number.
Serial Number
Engine Serial Number Location
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 nd a local, au-
thorized servicing agent of the component manu-
facturer. Any unauthorized work done on these
components during the warranty period may void
the warranty. If you have any difculty nding an
authorized outlet or obtaining warranty service,
please contact our Service Department for assis-
tance:
Walker Manufacturing Company
5925 E. Harmony Road
Fort Collins, CO 80528
1-970-221-5614
www.walkermowers.com
Service manuals are available for each of these
components from their respective manufacturers as
follows:
Kohler Engines Kohler Company
Kohler, WI 53044
800-544-2444
www.kohlerengines.com
Hydrostatic Eaton Fluid Power Group
Transmissions Hydraulics Business USA
14615 Lone Oak Road
Eden Prairie, MN 55344 USA
952-937-9800
www.eaton.com/hydraulics
Gearboxes (Deck) Peerless Gear
1555 South Jackson St.
Salem, IN 47167 USA
866-536-8310
www.peerlessgear.com
Specications
3
MODEL T30i
ENGINE
Manufacturer/Model Kohler AegisTM LH775, 2 Cyl., Gasoline (Liquid-Cooled),
Electronic Fuel Injection (EFI)
Displacement cu. in. (cc) 45.6 (747)
Max. Power HP (kW) 30.0 (22.4) @ 3600 RPM
Governed RPM 3600
Max. Torque lb·ft (N·m) 47.7 (64.7)
Idle RPM 1200
Spark Plug Type Champion®RC14YC
Spark Plug Gap in. (mm) .030 (0.76)
Crankcase Capacity qt (L) 1.7 (1.6)
Crankcase Lubricant API 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)
Oil Filter Kohler P/N 12 050 01 S
Cooling System Liquid-Cooled
Cooling System Capacity gal (L)
(Approx.)
1.25 (4.73)
Coolant 50/50 Pre-Mix Antifreeze/Water
Cooling Fan Electric Radiator Cooling Fan with Reversible Self-Cleaning Action
Fuel Tank Capacity gal (L) 4.7 (17.8)
Fuel Regular Grade Unleaded Gasoline
(87 Octane Minimum, 10% Ethanol Maximum)
Air Cleaner Remote Mounted Donaldson RadialsealTM
(Walker P/N 5090-1 Primary/5090-3 Safety Filter)
ELECTRICAL SYSTEM
Battery 12 Volt, 41AH, 340 CCA (Interstate U1-SP40)
Charging System Flywheel Alternator
Charging Output 25 Amp DC (Regulated)
System Polarity Negative Ground
Ignition Electronic Capacitive Discharge
Starter 12 Volt Electric Ring-Gear Type, Solenoid Shift
Interlock Switches Ignition Lockout by Seat Switch,
Transmission Neutral and Blade Clutch
Circuit Breakers Auto Reset (40A) - Radiator Fan Circuit
Auto Reset (30A) - Electrical System
Manual Reset (10A) - Insturment Panel
Manual Reset (7A) - Instrument Panel
Specications
4
MODEL T30i
TRANSMISSION
Manufacturer/Model Dual Hydrostatic, Eaton Model 7, Each Wheel Independently Driven
Steering Hand Lever Control / Individual Wheel
Forward Speed Control 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
Transmission Fluid
Factory Service Mobil 1 Synthetic Motor Oil (15W-50)
Alternate Transmission Fluid SAE 30W Straight Viscosity Motor Oil
Transmission Oil Capacity
oz (L)
19 (.56)
Transmission Cooling Cooling Fan Mounted on Drive Pulley
Ground Travel Speed
Forward MPH (km/h)
Reverse MPH (km/h)
0-7 (0-11) Innitely Variable
0-5 (0-8) Innitely Variable
BLADE DRIVE
PTO Shaft Quick Disconnect Splined Shaft with Two (2) High-Speed U-Joints
Blade Drive Clutch and Brake Manual Belt Tightener Clutch and Band Brake
[Stops Blades within Five (5) Seconds of Disengagement]
TIRE SIZE
Deck Caster 8 x 3.00-4 Semi-Pneumatic (Standard)
8 x 3.00-4 (Pneumatic 4-Ply) (Optional)
11 x 4.00-5 (Pneumatic 4-Ply, DS52, DS62, DS74 Only)
Drive 18 x 9.50-8 (Pneumatic 4-Ply, Standard)
18 x 10.50-10 (Pneumatic 4-Ply, Optional Low-Prole)
Tailwheel 13 x 5.00-6 (Pneumatic 4-Ply, Standard Dual)
13 x 8.00-6 (Pneumatic 4-Ply, Optional Single)
TIRE PRESSURE PSI (KPA)
Deck Caster Wheel* 20 (137)
Drive 15 (103)
Tailwheel 20 (137)
*If equipped with optional pneumatic tires
Specications
5
MODEL T30i
DIMENSIONS (Tractor and Mower)
Length in. (cm)
Tractor Only 64.25 (164)
Tractor Wheel Base 41 (104)
Tractor with Tilted Deck
(Approximate)
77 (196)
Tractor with 48" Collection Deck
(DC48-1)
93 (236)
Width in. (cm)
Tractor Only (Outside Tire) 39 (99)
Tractor with 48" Collection Deck
(DC48-1)
49.75 (127)
Tread Width (Tractor) 30 (77)
Height in. (cm)
Tractor 50 (127)
Weight lb (kg)
Tractor Only 841 (381)
Tractor with 48" Collection Deck
(DC48-1)
1039 (471)
GHS SYSTEM (Optional)
Blower 10.5 in. Diameter, Three-Blade Paddle Wheel
Blower Brake Band Brake [Works in Combination with PTO Clutch, Stops
Blower within Five (5) Seconds of PTO Disengagement]
Max. Blower RPM 4000
Hi-Dump Option
Max. Lift Capacity lb (kg)
200 (91)
Grass Catcher Capacity
gal / bu / L
93 / 10 / 352
Full Signal (Grass-Pak®Switch) Oscillating Vane Switch Mounted on Grass Delivery Spout Triggers
Horn Signal
Powerl ®Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor
Spreads Material throughout Interior of Catcher @ 35 Cycles/Minute
Specications
6
MODEL T30i
MOWER DECK
Recommended Cut Width
Collection 42 to 52 in. (107 to 132 cm)
Side Discharge 42 to 74 in. (107 to 188 cm)
Mulch 42 to 52 in. (107 to 132 cm)
Cutting Height 1.5 to 4 in. (4 to 10 cm) or
1.5 to 4.5 in. (4 to 11.5 cm) (DS52 & DS62 Belt Driven Decks Only)
Deck Suspension Independent Torsion-Flex Frame with Caster Wheels and
Counterweight Springs
DRIVE BELTS
Engine PTO Walker P/N 8230
Jackshaft Drive Walker P/N 6250-1
Ground Drive, Micro-V Walker P/N 7248
Blower (GHS Model) Walker P/N 7234-2
SEAT Full Spring Suspension with Dampening and Adjustments for Back
Angle, Lumbar Support, and Operator Weight. Standard with Arm-
rests
FRAME/BODY CONSTRUCTION
Frame All Welded Unitized Steel Chassis
Body 14 Gauge Steel
Deck 11 Gauge Steel
GHS Catcher and Chutes Molded Cross-Linked Polyethylene (High Impact Material,
UV Stabilized)
NOTE: The manufacturer reserves the right to make changes in specications shown herein at any time
without notice or obligation. The specications listed are for a standard conguration tractor, and may
change with the addition of optional equipment.
This manual suits for next models
4
Table of contents
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