Walker S14 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: 128442
Eective Date: 05.05.14
P/N 5000-28

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 satised 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 specic 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 [phone], for clarication before operating or servicing this
mower.
This manual covers Model S14 with the Subaru Robin, EX40 (14 HP) gasoline engine.
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.
Specications 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 specications listed.
Walker Mfg. Co. is continually striving to improve the design and performance of its products. We
reserve the right to make changes in specications 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 ENGINEAND
DRIVETRAIN COMPONENTS ______________ 2
Specications________________________ 3
ENGINE________________________________ 3
ELECTRICAL SYSTEM ___________________ 3
TRANSMISSION_________________________ 3
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 Identication ___________ 7
Safety Instructions _________________ 10
BEFORE OPERATING ___________________ 10
OPERATING ___________________________ 12
MAINTENANCE ________________________ 14
SAFETY, CONTROL,AND
INSTRUCTION DECALS _________________ 15
Assembly Instructions______________ 18
SETUP INSTRUCTIONS__________________ 18
Tire Installation (Tractor) _______________ 18
Battery Service _______________________ 18
Wet Battery Service __________________ 18
Dry Battery Service___________________ 18
Battery Charging_____________________ 19
Battery Installation ___________________ 19
Mower DeckAssembly_________________ 19
Deck Caster Wheels Installation_________ 19
Deck Discharge Chute Installation _______ 20
Deck Discharge Deector
Shield Installation ____________________ 20
PTO Shaft Guard Installation ___________ 20
Tilt-Up Roller Wheel Installation _________ 20
Mower Deck Installation on Tractor_______ 21
Deck Installation _____________________ 21
Deck Leveling_______________________ 22
PREOPERATING CHECKLIST_____________ 23
Operating Instructions _____________ 25
CONTROL IDENTIFICATION,
LOCATION, AND FUNCTION _____________ 25
Ignition Switch _______________________ 25
Engine Choke ________________________ 25
Engine Throttle_______________________ 26
Forward Speed Control (FSC) ___________ 26
Front Body Latch Release ______________ 26
Steering Levers_______________________ 26
Blade Clutch (PTO)____________________ 26
Parking Brake ________________________ 27
Transaxle LockoutArms _______________ 27
Hourmeter___________________________ 28
STARTING THE ENGINE _________________ 30
ADJUSTING GROUND
SPEEDAND STEERING__________________ 30
ENGAGING THE BLADE DRIVE ___________ 32
STOPPING THE MACHINE _______________ 33
ADJUSTING CUTTING HEIGHT____________ 34
TRANSAXLE LOCKOUTS ________________ 34
RECOMMENDATIONS FOR MOWING ______ 35
RECOMMENDATIONS FOR TILT-UP DECK
OPERATION/TRANSPORT _______________ 37
GRASS HANDLING SYSTEM (GHS) ________ 38
General Information ___________________ 39
Clogging Checklist____________________ 40
Using the Tilt-Up Deck _________________ 41
Using the GHS Catcher ________________ 41
Powerl ®__________________________ 41
“Full” Signal Horn ____________________ 41
Cleaning the GHS Exhaust Screen _______ 42
Dumping the Catcher __________________ 42
Tailgate Dumping ____________________ 42
Using the Dump Bag__________________ 43

Table of Contents
Maintenance Instructions __________ 44
MAINTENANCE SCHEDULE CHART _______ 44
IMPORTANT TIPS FOR CARE OF THE
SUBARU ENGINE_______________________ 45
Fuel System _________________________ 45
Starting/Stopping_____________________ 45
Cooling System ______________________ 45
Air Cleaner System____________________ 45
Oil__________________________________ 45
LUBRICATION _________________________ 46
Engine Oil ___________________________ 46
Engine Break-In Oil___________________ 46
Checking Engine Crankcase Oil Level ____ 46
Changing Engine Crankcase Oil_________ 47
Grease Fitting and Oil Point Lubrication __ 47
Mower Deck Gearbox Lubrication________ 50
Mower Deck Spindle Lubrication ________ 50
Transaxle Lubrication _________________ 50
Transaxle Oil and Filter Change _________ 51
CLEANING ____________________________ 52
EngineAir Cleaner System _____________ 52
Donaldson Radialseal™Air Cleaner______ 52
Fuel Filter ___________________________ 54
Engine Cooling System ________________ 55
CoolingAir Intake Screen ______________ 55
Cylinder Head Cooling Fins ____________ 55
Grass Buildup in Mower Deck Housing ___ 56
GHS Blower__________________________ 56
GHS Exhaust Screen __________________ 56
Transaxle Housing ____________________ 57
CHECKING/SERVICING__________________ 57
Security ofAir Filtration Components ____ 57
Battery______________________________ 57
Electrolyte Level _____________________ 57
Cleaning the Terminals ________________ 58
Charging the Battery__________________ 58
Tire Pressure_________________________ 58
Wheel Nut Torque _____________________ 58
Sharpen Mower Blades ________________ 58
Drive Belts___________________________ 60
Mower Deck Gearbox Oil Seals __________ 60
Spark Plug___________________________ 60
Ignition _____________________________ 60
Fuel Lines and Clamps_________________ 60
Blade BrakeAction____________________ 60
Safety Switch System__________________ 61
Forward Speed Control Friction Lock_____ 61
REPLACING/REPAIRING_________________ 62
Drive Belts___________________________ 62
Engine Belt _________________________ 63
PTO Drive Belt ______________________ 64
Ground Drive Belt ____________________ 65
Blade Overload Shear Bolts_____________ 66
PTO Shear Pin (If Equipped) ____________ 66
Mower Blades ________________________ 67
ADJUSTMENTS ________________________ 68
Transmission Control__________________ 68
Steering Lever PositionAdjustment ______ 68
Steering HandlesAdjustment ___________ 69
Neutral PositionAdjustment ____________ 69
Full Forward SpeedAdjustment _________ 71
Straight Tracking Adjustment ___________ 71
FSC Neutral SwitchAdjustment _________ 71
Forward Speed Control
FrictionAdjustment___________________ 72
Blade Clutch (PTO)____________________ 73
Clutch Engagement/Belt Tension ________ 73
Blade Brake BandAdjustment __________ 74
Tilt-Up DeckAdjustable Stop____________ 75
GHS “Full” Signal HornAdjustment ______ 76
Operator’s Notes _______________ 77
Warranty _____________________ 79

General Information
1
HIGHLIGHTED INFORMATION
Walker Manufacturing recommends thatanyservice
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 specic
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 fol-
lowing terms and their denitions will help while us-
ing 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.
•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
catcher is full.
•GROUND DRIVE refers to the dual transaxles
which drive the main wheels.
•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 two transaxles.
•TRACTOR isthe prime mover, including the en-
gine, drivetrain, operator seat, and controls to
operate the mower.
•TRANSAXLE transmits and controls power
from the ground drive belt to the main drive
wheel.
•TRANSAXLE LOCKOUT ARMS release the
transaxles to permit freewheeling the tractor.
IDENTIFYING NUMBER LOCATIONS
The tractor serial number plate is afxed to the trac-
tor body just below the left rear corner of the seat.
The mower deck serial number plate is afxed
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.
Fill In By Purchaser
Tractor Model No. ______________________
Tractor Serial No. ______________________
Deck Serial No. ______________________
Engine Model No. ______________________
Engine Serial No. ______________________
Date of Purchase ______________________

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 the photo below for the location of the
engine serial number.
Serial Number
Engine Serial Number Location
SERVICING OF ENGINEAND DRIVETRAIN
COMPONENTS
The detailed servicing and repair of the engine,
transaxles 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, authorized
servicing agent of the component manufacturer.
Any unauthorized work done on these compo-
nents during the warranty period may void the
warranty. If you have any difculty nding an au-
thorized 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:
Subaru Engine Subaru RobinAmerica Inc.
Adivision of Fuji
Industries, Ltd. Group
905 Telser Rd.
Lake Zurich, IL60047
800-277-6246
www.subarupower.com
Transaxle Hydro-Gear
1411 South Hamilton St.
Sullivan, IL61951
877-728-7410
www.hydro-gear.com
Gearboxes (Deck) Peerless Gear
1555 South Jackson St.
Salem, IN 47167 USA
866-536-8310
www.peerlessgear.com

Specications
3
MODEL S14
ENGINE
Manufacturer/Model Subaru Robin, EX40, 1 Cyl. (Air-Cooled)
Displacement cu. in. (cc) 24.65 (404)
Max. Power HP (kW) 14.0 (10.4) @ 3600 RPM
Governed RPM 3600
Max. Torque lb·ft (N·m) 19.9 (27.0) @ 2400 RPM
Idle RPM 1300
Spark Plug Type NGK BPR5ES
Spark Plug Gap in. (mm) .030 (0.75)
Crankcase Capacity qt (L) 1.35 (1.3)
Crankcase Lubricant API SC/SD/SE/SF/SG/SH Grade Oil Only with 10W-30/10W-40
Viscosity or 40WAbove 68° F (20° C) Only
Fuel Tank Capacity gal (L) 1.9 (7.2)
Fuel Regular Grade Unleaded Gasoline (87 Octane Minimum,
10% Ethanol Maximum)
Cooling System Air Cooled
Air Cleaner Remote mounted Donaldson RadialsealTM
(Walker P/N 5090-1 Primary/5090-3 Safety Filter)
ELECTRICAL SYSTEM
Battery 12 Volt, 300 CCA (Interstate SP-35)
Charging System Flywheel Alternator
Charging Output 13 Amp DC (Regulated)
System Polarity Negative Ground
Ignition Transistorized Electronic Magneto
Starter 12 Volt Electric Key and Solenoid Operated
Interlock Switches Ignition Lockout by Seat Switch, Transmission Neutral and Blade
Clutch
Circuit Breaker Replaceable Fuse (20A)
TRANSMISSION
Manufacturer/Model Dual, Independent Hydro-Gear®ZT3100 Integrated Transaxles
Steering Hand Lever Control / Individual Wheel
Forward Speed Control Precision Friction Lock Lever, Cruise Control, with
Neutral-Park Position
Service Brake Dynamic Braking through Transaxles
Parking Brake Internal Mechanical Cog Lock for each Transaxle
(Single Lever Control)
Neutral Transmission Release by Manual Dump Valve

Specications
4
MODEL S14
TRANSMISSION (continued)
Final Drive Transaxle Direct to Drive Wheel
Transmission Fluid
Factory Service 20W-50 Multi-Viscosity Motor Oil (Minimum SL Grade Oil)
Transmission Oil Capacity  oz (ml) 79 (2336)
Transmission Cooling Cooling Fan Mounted on Drive Pulley
Oil Filter Hydro-Gear®P/N 52114 (Walker P/N 2026-6)
Ground Travel Speed
Forward MPH (km/h)
Reverse MPH (km/h) 0-6.5 (0-10.5) Innitely Variable 0-5 (0-8) Innitely Variable
BLADE DRIVE
PTO Shaft Sliding Spline 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 (Pneumatic 4-Ply, Optional Foamed Rubber)
Drive 18 x 7.00-8 (Pneumatic 4-Ply, Standard)
18 x 8.50-10 (Pneumatic 4-Ply, Optional Low-Prole)
Tailwheel 13 x 6.50-6 (Pneumatic 4-Ply)
TIRE PRESSURE PSI (KPA)
Deck Caster Wheel 20 (137)
Drive 15 (103)
Tailwheel 20 (137)

Specications
5
MODEL S14
DIMENSIONS (Tractor and Mower)
Length in. (cm)
Tractor Only 63.75 (162)
Tractor Wheel Base 43 (109)
Tractor with Tilted Deck
(Approximate) 77 (196)
Tractor with 36" Collection Deck
(DC36R-1) 87 (221)
Tractor with 42" Collection Deck
(DC42-1) 88.5 (225)
Width in. (cm)
Tractor Only (Outside Tire) 36 (91.5)
Tractor with 36" Collection Deck
(DC36R-1) 37.25 (95)
Tractor with 42" Collection Deck
(DC42-1) 43.25 (110)
Height in. (cm)
Tractor 46.75 (119)
Weight lb (kg)
Tractor Only 595 (270)
Tractor with 36" Collection Deck
(DC36R-1) 766 (347)
Tractor with 42" Collection Deck
(DC42-1) 786 (356)
GHS SYSTEM
Blower 12.5 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 2900
Grass Catcher Capacity
gal / bu / L 65 / 7 / 246
Full Signal Oscillating Vane Switch Mounted on Grass Delivery Spout Triggers
Horn Signal
Powerl ®Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor
Spreads Material throughout Interior of Catcher @ 35 Cycles/Min

Specications
6
MODEL S14
MOWER DECK
Recommended Cut Width 36 or 42 in. (91 or 107 cm)
(Collection, SD, Mulch)
Cutting Height 1 to 4 in. (2.5 to 10 cm) in 1/2 in. (1 cm) Increments
Deck Suspension Independent Torsion-Flex Frame with Caster Wheels and
Counterweight Springs
DRIVE BELTS
Engine Walker P/N 5234-3
Ground Drive Walker P/N 5232-1
PTO Drive Walker P/N 5234-4
SEAT Contour-Molded, with Nylon Backed Vinyl Cover and Integral
Foam Cushion
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 (UV Stabilized)
NOTE: The manufacturer reserves the right to make changes in specications shown herein at any time
without notice or obligation. The specications listed are for a standard conguration tractor, and may
change with the addition of optional equipment.