Walker S14i Operator's Manual

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Operator’s Manual

Safety, Assembly, Operating, and Maintenance Instructions

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For Safety, Read All Safety and Operation Instructions Prior to Operating Machine

Beginning S/N: 154257

P/N 5000-46

Foreword

Thank you. . .for purchasing a Walker mower. Every e󰀨ort 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 customers. 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 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 clarication before operating or servicing this

mower.

This manual covers Model S14i with the Kohler ECH440 (14 HP) Electronic Fuel Injection (EFI)

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 produced for a tractor with standard equipment. Optional equipment is available and may a󰀨ect 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 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

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 ___________________ 19 Battery Charging _____________________ 19 Battery Installation ___________________ 20

Mower Deck Assembly _________________ 20

Deck Caster Wheels Installation _________ 20 Deck Discharge Chute Installation _______ 20 Deck Discharge Deector Shield Installation ____________________ 21 PTO Shaft Guard Installation ___________ 21 Tilt-Up Roller Wheel Installation _________ 21

Mower Deck Installation on Tractor _______ 21

Deck Installation _____________________ 21 Deck Leveling _______________________ 23

PREOPERATING CHECKLIST _____________ 24

Operating Instructions _____________ 26

CONTROL IDENTIFICATION, LOCATION, AND FUNCTION _____________ 26

Engine Throttle _______________________ 26 Forward Speed Control (FSC) ___________ 27 Steering Levers_______________________ 27 Blade Clutch (PTO) ____________________ 27 Front Body Latch Release ______________ 27 Parking Brake ________________________ 29 Transaxle Lockout Arms _______________ 29 Engine Service Light __________________ 29 Engine Low Oil Warning Horn ___________ 30 Hourmeter ___________________________ 30 Ignition Switch _______________________ 31

Circuit Breakers ______________________ 31 STARTING THE ENGINE _________________ 31 ADJUSTING GROUND SPEED AND STEERING __________________ 31 ENGAGING THE BLADE DRIVE ___________ 33 STOPPING THE MACHINE _______________ 34 ADJUSTING CUTTING HEIGHT ____________ 35 TRANSAXLE LOCKOUT _________________ 35 RECOMMENDATIONS FOR MOWING ______ 36 RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT _______________ 39 GRASS HANDLING SYSTEM (GHS) ________ 40

General Information ___________________ 41

Clogging Checklist ____________________ 41

Using the Tilt-Up Deck _________________ 43

Using the GHS Catcher ________________ 43

Powerl ® __________________________ 43

“Full” Signal Horn ____________________ 43

Cleaning the GHS Exhaust Screen _______ 44

Dumping the Catcher __________________ 44

Tailgate Dumping ____________________ 44 Using the Dump Bag __________________ 45 Power Dump Option __________________ 46

Table of Contents

Maintenance Instructions __________ 48

MAINTENANCE SCHEDULE CHART _______ 48 IMPORTANT TIPS FOR CARE OF THE KOHLER ENGINE ________________ 49

Fuel System _________________________ 49 Starting/Stopping _____________________ 49 Cooling System ______________________ 49 Air Cleaner System ____________________ 49 Oil__________________________________ 49

LUBRICATION _________________________ 50

Engine Oil ___________________________ 50

Engine Break-In Oil ___________________ 50 Checking Engine Crankcase Oil Level ____ 50 Changing Engine Crankcase Oil _________ 51

Grease Fitting and Oil Point Lubrication __ 51 Mower Deck Gearbox Lubrication ________ 54 Mower Deck Spindle Lubrication ________ 54 PTO U-Joint Lubrication _______________ 54 Check Transaxle Fluid Level ____________ 55 Transaxle Oil and Filter Change _________ 56

CLEANING ____________________________ 57

Engine Air Cleaner System _____________ 57

Kohler Quad-Clean™ Air Cleaner ________ 57 Precleaner _________________________ 58 Paper Air Filter ______________________ 58

Engine Cooling System ________________ 59

Cooling Air Intake Screen ______________ 59 Cylinder Head Cooling Fins ____________ 59

Grass Buildup in Mower Deck Housing ___ 60 GHS Blower __________________________ 61 GHS Exhaust Screen __________________ 61 Transaxle Housing ____________________ 62

CHECKING/SERVICING __________________ 63

Security of Air Filtration Components ____ 63 Battery ______________________________ 63

Electrolyte Level _____________________ 63 Cleaning the Terminals ________________ 64 Charging the Battery __________________ 64

Tire Pressure _________________________ 64 Wheel Nut Torque _____________________ 64 Sharpen Mower Blades ________________ 64 Drive Belts ___________________________ 65 Mower Deck Gearbox Oil Seals __________ 65 Spark Plug ___________________________ 66 Ignition _____________________________ 66 Ignition Wire _________________________ 66 Fuel Lines and Clamps _________________ 66 Engine Valve Clearance ________________ 66 Transmission Control Setting ___________ 66

Neutral-Park ________________________ 66 Straight Ground Tracking ______________ 66

Blade Brake Action ____________________ 66

PTO U-Joints ________________________ 67

Safety Switch System__________________ 67

Forward Speed Control Friction Lock _____ 67 REPLACING/REPAIRING _________________ 68

Drive Belts ___________________________ 68

Engine Belt _________________________ 69 PTO Drive Belt ______________________ 70 Ground Drive Belt ____________________ 71

Fuel Filter ___________________________ 72

Blade Overload Shear Bolts_____________ 72

Mower Blades ________________________ 73 ADJUSTMENTS ________________________ 74

Transmission Control__________________ 74

Steering Lever Position Adjustment ______ 74 Steering Handles Adjustment ___________ 74 Neutral Function Adjustment ____________ 75 Full Forward Speed Adjustment _________ 76 Straight Tracking Adjustment ___________ 77 FSC Neutral Switch Adjustment _________ 77 Forward Speed Control Friction Adjustment ___________________ 78

Blade Clutch (PTO) ____________________ 79

Clutch Engagement/Belt Tension ________ 79 Blade Brake Band Adjustment __________ 80

Tilt-Up Deck Adjustable Stop ____________ 81

GHS “Full” Signal Horn Adjustment ______ 82

Warranty _____________________ 83

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 specic 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, 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 denitions 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 components, 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.

● 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 is the prime mover, including the

engine, 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 a󰀩xed to the tractor body just below the left rear corner of the seat. The mower deck serial number plate is a󰀩xed 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 provided.

● GRASS-PAK® SWITCH is mounted on the

grass delivery spout (in the catcher) and activates 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.

Tractor Model No. ______________________

Tractor Serial No. ______________________

Deck Serial No. ______________________

Engine Model No. ______________________

Engine Serial No. ______________________

Date of Purchase ______________________

Fill In By Purchaser

General Information

SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS

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

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 components during the warranty period may void the warranty. If you have any di󰀩culty nding 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

www.walker.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

Transaxles Hydro-Gear 1411 South Hamilton St. Sullivan, IL 61951 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

Engine Serial Number Location

Specications

MODEL S14i

ENGINE

Manufacturer/Model Kohler ECH440, 1 Cyl., Gasoline (Air-Cooled),

Electronic Fuel Injection (EFI)

Displacement cu. in. (cc) 26.2 (429)

Max. Power HP (kW) 14.0 (10.4) @ 3600 RPM

Governed RPM 3600

Max. Torque lb

·ft (N·m)

Idle RPM 1300

Spark Plug Type Champion

Spark Plug Gap in. (mm) .030 (0.76)

Crankcase Capacity qt (L) 1.2 (1.1)

Crankcase Lubricant API SJ or Higher Grade Oil Only with 10W-30 Viscosity Above 0° F

Cooling System Air-Cooled

Fuel Tank Capacity gal (L) 1.9 (7)

Fuel Regular Grade Unleaded Gasoline

Air Cleaner Engine Mounted Kohler Quad-Clean

22.7 (30.8) @ 2800 RPM

RC12LC4

(-18° C) or 5W-30 Viscosity Below 32° F (0° C)

(87 Octane Minimum, 10% Ethanol Maximum)

Air Cleaner

(Kohler Filter P/N 17-083-21-S, Precleaner Filter P/N 17-083-15-S)

ELECTRICAL SYSTEM

Battery 12 Volt, 300 CCA (Interstate SP-35)

Charging System Flywheel Alternator

Charging Output 18 Amp DC (Regulated)

System Polarity Negative Ground

Ignition Electronic Capacitive Discharge

Starter 12 Volt Electric Key and Solenoid Operated

Interlock Switches Ignition Lockout by Seat Switch, Transmission Neutral,

Blade Clutch, and Parking Brake

Circuit Breaker(s) Manual Reset (5A)

Auto Reset (30A)

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

Specications

MODEL S14i

TRANSMISSION (continued)

Parking Brake Internal Mechanical Cog Lock for each Transaxle

Neutral Transmission Release by Manual Dump Valve

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 (L) 77 (2.3)

Transmission Cooling Cooling Fan Mounted on Drive Pulley

Oil Filter Hydro-Gear

Ground Travel Speed

Forward MPH (km/h) Reverse MPH (km/h)

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

(Single Lever Control)

P/N 52114 (Walker P/N 2026-6)

0-6.5 (0-10.5) Innitely Variable 0-5 (0-8) Innitely Variable

[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)

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)

* If equipped with optional pneumatic tires

Specications

MODEL S14i

DIMENSIONS (Tractor and Mower)

Length in. (cm)

Tractor Only 65 (165)

Tractor Wheel Base 42.25 (107)

Tractor with Tilted Deck (Approximate)

Tractor with 42" Collection Deck (DC42-1)

Width in. (cm)

Tractor Only (Outside Tire) 36.25 (92)

Tractor with 42" Collection Deck (DC42-1)

Tread Width 29.25 (74)

Height in. (cm)

Tractor 46.5 (118)

Weight lb (kg)

Tractor Only 596 (270)

Tractor with 42" Collection Deck (DC42-1)

77 (196)

89.25 (227)

43.25 (110)

787 (357)

GHS SYSTEM

Blower 12.75 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

Full Signal (Grass-Pak Switch) Oscillating Vane Switch Mounted on Grass Delivery Spout Triggers

Powerl

65 / 7 / 246

Horn Signal

Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor Spreads Material throughout Interior of Catcher @ 35 Cycles/Min

Specications

MODEL S14i

MOWER DECK

Recommended Cut Width 36 or 42 in. (91 or 107 cm)

Cutting Height 1.5 to 4 in. (4 to 10 cm) in 1/2 in. (1 cm) Increments

Deck Suspension Independent Torsion-Flex Frame with Caster Wheels and

DRIVE BELTS

Engine Walker P/N 5234-6

Ground Drive Walker P/N 5232-1

PTO Drive Walker P/N 5234-7

SEAT Contour-Molded, with Nylon Backed Vinyl Cover and Integral

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,

(Collection, SD, Mulch)

Counterweight Springs

Foam Cushion

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.

Component Identication

NOTE: Control Identication

shown in Operating

Instructions section.

Grass Handling System

7.0 Bushel Catcher

Tilt-Up Latch

Spring Clip

Counterweight Spring

and Protective Cover

Anti-Scu󰀨

Roller

Catcher Lift /

Dump Handle

30 Amp Circuit

(Not Visible)

Breaker

Engine Low Oil

Warning Horn

(Not Visible)

Forward Speed Control Friction

Adjustment

Deck Support Arm

(Not Visible)

(Cutting Height Adjustment)

Deck Lift Handle

Tilt-Up Hook (Not Visible)

Deck Support Arm

Deck Support Pins and

Height Adjustment

Hitch Pins

Footrests

Tilt-Up

Deck Handle

Caster Wheel

Deck

Front View and Right Side View

Component Identication

Catcher Lift /

Dump Handle

Footrests

Gas Spring

Cover

Catcher Door

Gas Spring

(Not Visible)

Removable Grass

Catcher Screen

(Not Visible)

Catcher Door

Catcher

Air Exhaust

Catcher

Door Handle

Dump

Flap

Anti-Scu󰀨

Roller

Left Hand

Drive Wheel

Cylinder Head

Cooling Air Duct

Mu󰀪er

Tailpipe

Rear View and Left Side View

Rotating Engine

Screen

Tailwheel Fork

and Wheel

Component Identication

Fuel Pump Module

(High Pressure)

Fuel Shut-O󰀨

Valve

Fuel Filter

Fuel Tank

Cap

Fuel Pump

(Low Pressure, Not Visible)

Battery Cable

BatteryNegative (-)

Positive (+)

Battery Cable

Air Cleaner

Cover

Tailpipe

Air Cleaner

Throttle Linkage

Mu󰀪er

Heat Shield

Oil Dipstick / Oil Fill

Cylinder Head

Cooling Air Duct

Jackshaft

Transaxle Oil

Expansion Reservoir

PTO Clutch

Lever

RH Transaxle

Lockout Arm

RH Transaxle

Neutral Safety

Switch

RH Transmission

Control Rod

Steering Lever

Spring / Dampeners

Parking Brake

Safety Switch

GHS

Blower

Parking Brake

Lever

LH Transaxle

Lockout Arm

LH Transaxle

LH Transmission

Control Rod

Top View (Body Raised)

Safety Instructions - Before Operating

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. Fail ure to comply with safety instructions may result in personal injury.

The seriousness or degree of importance of each type of information is dened 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 instruc-

tions contained 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

Operator’s Manual before starting and operating the machine. Become thoroughly famil-

iar with all machine controls and how to stop the machine and disengage the controls quickly. Replacement Operator’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 safety precautions are not taken.

IMPORTANT: Identies mechanical information

demanding special attention, since it deals with the possibility of damaging a part or parts of the ma-

chine.

NOTE: Identies 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 everyone, especially children and 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.

Safety Instructions - Before Operating

6. Do not wear loose tting clothing that could get caught in moving parts. Do not operate this machine while wearing shorts; always wear ade- quate 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 earmu󰀨s 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 functioning correctly, so the engine cannot be started un-

less the Forward Speed Control lever is in the NEUTRAL-PARK position, the PTO clutch is in the DISENGAGED position, and the Parking Brake is in the ENGAGED position. Also, the engine should stop if the operator lifts o󰀨 the seat with any one or more of these controls in the operating position: (1) Forward Speed Control (FSC) out of NEUTRAL-PARK, (2) PTO Clutch ENGAGED, or (3) Parking Brake DIS-

ENGAGED.

11. Never attempt to make any adjustments while the engine is running, except where

specically 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

This product can expose you to chemicals including Di-(2-ethylhexyl) phthalate which is known to the State of California to cause cancer, and Di-(2-ethylhexyl) phthalate, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

10. Handle gasoline with care. Gasoline is highly

ammable 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 ames, or sparks away from the fuel tank and fuel container.

d. Always ll 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 contain-

er cap securely and clean up any spilled fuel before starting the engine.

Safety Instructions - Operating

1. Operate the mower only in daylight or in

good articial 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 oper ation.

Be aware that, with the front mounted mower conguration, the back of the tractor 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.

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 the transmission drive belt breaks 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, put the FSC in the NEUTRAL-PARK position, and engage the Parking Brake before starting the engine (an ignition interlock switch normally prevents starting of the machine if these controls are in the OPERATING position).

7. Do not operate machine if the operator pres-

ence safety switch system is not working.

Verify proper operation by having the operator lift o󰀨 the seat with the engine running and moving three controls, one at a time; (1) Move the FSC lever out of the NEUTRAL-PARK position, (2) Engage the PTO Clutch, and (3) Disengage the Parking Brake. Moving any of these controls should stop the engine immediately.

8. Do not run the engine in a conned 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 starts or stops. Before backing the machine up, look to the rear to be sure no one is behind the machine. Watch carefully for tra󰀩c when crossing or working near road-

ways.

12. When moving forward, do not suddenly put the tractor in reverse by rapidly pulling on the steering levers, especially when going downhill, as this can lift the tractor tail wheel o󰀨 the ground and set up a bucking motion due to operator overcontrol. If bucking does occur, immediately stop the bucking action by pulling the Forward Speed Control (FSC) lever into the NEUTRAL- PARK position.

13. Disengage the blade drive when transporting the machine across drives, sidewalks, etc.

Never raise the mower deck while blades are rotating.

DANGER

Do not mow or dump grass within 5 feet (1.5 meters) of an embankment or retaining

wall with drop o󰀨.

Safety Instructions - Operating

14. The maximum recommended slope operating angle is 15 degrees or 27% 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. Do not operate the machine on a

slope greater than 15 degrees.

15. Never adjust cutting height with the engine running. Before adjusting cutting height or

servicing, disengage the blade clutch (PTO), engage parking brake, stop the engine, and remove the ignition key. Wait for all movement to stop before getting o󰀨 the seat.

NOTE: A blade/blower brake should normally stop drive line rotation within ve (5) seconds of disengaging the PTO clutch.

16. For side discharge mower decks, do not oper-

ate with the grass deector shield removed.

Keep the deector in the lowest possible position.

17. When using the tilt-up deck, observe the fol-

lowing:

a. Do not move tractor with deck in tilt-up

position.

20. In case of a clogged or plugged mower deck

or GHS catching system:

a. Disengage the blade clutch (PTO), engage

the parking brake, and turn the engine o󰀨 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 wire.

d. Never place hands under the deck or in the

GHS blower - use a stick or similar tool to remove clogged material.

21. If the cutting blades strike a solid object or the

machine begins to vibrate abnormally, immedi-

ately disengage the blade clutch (PTO), engage the parking brake, stop the engine, and wait for all moving parts to stop. To pre-

vent accidental starting, disconnect the spark plug wire. Thoroughly inspect the mower and repair any damage before restarting the engine and operating the mower. Make sure cutter blades are in good condition and blade nuts are torqued to 60 lb·ft (81 N·m) for gear driven decks, and blade bolts torqued to 70 lb·ft (95 N·m) for belt driven decks.

b. Never tilt body forward with deck in tilt-up

position.

18. Do not operate the machine with the grass

catcher in the DUMP position or with the back door OPEN. Dangerous projectiles may

be thrown out of the discharge chute or the back of the grass catcher.

19. Use care when closing the grass catcher door. Keep ngers and hands away from the hinge and pinch points when the door is being closed. Also, keep ngers and hands clear of the door frame. The door may slam shut with considerable force.

22. Do not touch the engine or mu󰀪er while the

engine is running or immediately after stopping the engine. These areas may be hot enough to cause serious burns.

23. When leaving the machine unattended, disen-

gage the blade clutch (PTO), engage the parking brake, stop the engine, and remove the key.

CAUTION

Use leg muscles and rm footing when lifting the catcher to dump; avoid bending at the waist and using back muscles in order to prevent back injury.

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 wire.

2. To reduce re hazards, keep the engine free of grass, leaves, excessive grease, and dirt.

3. Keep all nuts, bolts, and screws tight to ensure 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 modications 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.

Unauthorized maintenance operations or modications to the engine may result in unsafe operating conditions.

12. Use care when charging the battery or per-

forming 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, ames, and smoking 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 un-

plugging 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. Do not attempt to service the engine fuel injection system, which contains high pressure fuel and may cause injury if mishandled. For service of the pressurized fuel system, including the fuel pump module, fuel lines, and fuel injectors, contact your Walker dealer or authorized Kohler service dealer.

8. Altering the equipment or engine in any manner which adversely a󰀨ects its operation, performance, durability, or use will VOID the war- ranty and may cause hazardous conditions.

9. Never attempt to disconnect any safety devices or defeat the purpose of these safety devices.

10. Do not change the engine governor settings or overspeed the engine. The governor has been factory-set for maximum-safe engine operating speed.

11. Use genuine factory replacement parts. Sub stitute parts may result in product malfunction and possible injury to the operator and/or others.

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.

8600-4

Location: Adjacent to Blower Discharge Chute through Body Part Number: 8600-4

1. Warning - rotating impeller is a cutting/dismemberment hazard to ngers and hands.

● Never reach down into the blower discharge chute.

2. Warning - thrown object hazard.

● Never engage the PTO with grass catcher raised.

8600 -12

Location: Top of Fuel Tank Part Number: 8600-12

1. Warning – carbon monoxide (CO) poisoning hazard.

● CO emitted by a running engine can be deadly.

● Do not operate indoors or in other enclosed

areas.

60 lb·ft (81 N·m)

8600-9

Location: Gearbox Cover (Gear Drive Decks Only) Part Number: 8600-9

1. Tighten blade nuts on gear driven decks to 60 lb

·ft (81 N·m).

Location: Catcher Door Hinge Bar, LH and RH Sides Part Number: 8600-10

1. Caution - Pinch point.

● Keep all body parts clear when closing grass catcher door.

Location: Front Body Part Number: 5802-4

1. Engine Service Indicator Light

● If illuminated during operation contact an authorized Kohler Service Dealer as soon as possible.

9804-1

Location: Chassis Member Behind Transaxles Part Number: 9804-1

1. Neutral Lock

● Lift and move into slot to unlock transmission and allow machine to freewheel.

Location: Rear of Grass Catcher Exhaust Screen Part Number: 5869

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.

8600-28

Location: Each End of Mower Deck Part Number: 8600-28

1. Warning – thrown object hazard.

● Keep bystanders away from the machine when operating.

● Clear lawn of debris before operating.

● Keep any discharge deector in place and in

the lowest position.

2. Warning – rotating mower blades are a cutting/ dismemberment hazard to hands and feet.

● Keep all body parts away from rotating mower blades.

● Do not step on end of deck.

8600-14

Location: Deck Carrier Frame Part Number: 8600-14

Location: Top of Fuel Tank Part Number: 5082-5

5848-3

Location: Deck Discharge Shield (SD Decks Only) Part Number: 5848-3

1. Warning – thrown object hazard.

● Always keep the discharge shield in the lowest position when operating.

● Do not remove the discharge shield.

1. Warning – do not operate the machine with the deck tilted up.

Location: Deck Carrier Frame Part Number: 8600-15

1. Warning – lock deck tilt-up hinge before operating the machine.

Location: Deck Gearbox Cover Part Number: 8600-39

1. Warning - stop engine and remove ignition key before adjusting deck cutting height.

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.

8600-43

Location: LH Fender Part Number: 8600-43

1. Throttle

● Move lever forward to increase engine speed; back to idle.

2. Warning – read Operator’s Manual before operating the machine.

3. Warning – wear eye and ear protection when operating the machine.

4. Warning – roll-over hazard.

● Do not operate on slopes greater than 15 degrees.

5. Warning – thrown object hazard.

● Keep bystanders away from the machine when operating.

6. Warning – entanglement hazard.

● Keep all guards in place while engine is run- ning.

7. Parking Brake

● Move lever forward to engage Parking Brake; back to disengage.

1. 2.

Location: RH Fender Part Number: 8600-45

1. Warning – do not operate the machine without a deck or other implement attached.

2. Forward Speed Control

● Move lever forward to increase speed; back to stop.

3. Warning – read Operator’s Manual before servicing or performing maintenance.

● Engage parking brake.

● Remove ignition key.

4. Warning – do not engage PTO clutch with PTO shaft disconnected.

5. PTO Clutch Lever

● Move lever forward to engage PTO clutch; back to disengage.

Assembly Instructions

SETUP INSTRUCTIONS

Walker Mowers are shipped partially assembled to our distribution network, and are typically assembled by the selling dealer. For any additional assembly besides the following, contact your Walker dealer.

Tire Installation (Tractor)

● Install the drive tires using the eight (8) mounting nuts supplied with the Owner’s Packet of materials. Nuts are torqued to 75 to 85 lb·ft (102 to 115 N·m).

● Check and adjust the ination of the tires. The tire ination recommendations are:

Drive = 15 PSI (103 kPa) Tailwheel = 20 PSI (137 kPa)

Battery Service

CAUTION

Raise catcher box 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 specic gravity is less than

1.225, the battery needs charging. If the 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 and severe damage to the machine. A hazard may be created 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.

Important Battery Service, Installation, and Charging Tips for Electronic Fuel Injection Engines:

● Do not allow the battery cables to touch opposing terminals. When connecting battery cables attach the positive (+) cable to positive (+) battery terminal

rst, 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 uctuations 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.

2. Charge battery. Refer to Battery Charging in this section.

Assembly Instructions

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 battery 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 use by a trained battery technician.

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.

To ll (activate) battery with electrolyte (if battery has been shipped dry):

1. Remove the battery clamp/protector plate, disconnect the battery cables and lift the battery out of the tray.

IMPORTANT: Battery must be removed from the mower before lling with electrolyte.

Battery Charging

DANGER

BATTERIES PRODUCE EXPLOSIVE GASES

● Charge the battery in a well-ventilated area, so that gases produced while charging can dissipate.

● Keep sparks, ames, and smoking ma- terials away from the battery at all times.

● Make sure the battery cap vents are

open after the battery is lled with acid

(check manifold vent on each cap).

● Make sure the battery charger is un- plugged before connecting or disconnecting cables to the battery.

IMPORTANT: Always disconnect the negative (-)

battery terminal before charging. Failure to do so can result 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 specic 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 overll the battery. Electrolyte will overow through the vented caps onto parts of the machine and WILL result

in severe corrosion.

3. Install battery.

IMPORTANT: Obtain and use only battery grade sulfuric acid electrolyte with a 1.265 specic gravity to activate the battery. DO NOT use water or any other liquid during initial activation.

2. Remove the ller caps and carefully ll each cell until the electrolyte is just above the plates.

3. After the battery is lled with electrolyte, replace the ller caps and charge the battery. Refer to

Battery Charging.

Assembly Instructions

Battery Installation

Install the battery in the mower as shown in Battery Installation photo. Connect the positive (+) rst and then the negative (-) cable to the proper battery ter-

minal [red cable and boot connects to the Positive (+) 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 vents are open. Improper venting of the battery COULD cause a battery explosion.

(+) Battery Cable

Connection

4. Tighten the bolt and nut until the inner bearing race bottoms against the inside of the wheel fork (will not turn) while the wheel spins freely without binding.

Axle Spacer Tube

Axle Bolt

Deck Caster Wheel Installation

5. Grease the caster pivot bearings - one grease tting for each pivot.

Deck Discharge Chute Installation (GHS Collection Models Only)

Mount the discharge chute hinge on top of the deck discharge opening using two (2) 1/4-20 x 1/2 in. carriage bolts and 1/4-20 ESNA nuts. Position the screws with the heads inside the chute and the nuts on the outside. Attach spring for tilt-up action from chute to bracket on deck.

Battery Clamp

Secured by

Wing Nut(s)

Battery Installation

Mower Deck Assembly

Deck Caster Wheels Installation

1. Remove the bolt, nut, and axle spacer tube from each deck caster wheel fork.

2. Fit the axle spacer tube through the wheel hub, and t the assembly into the wheel fork.

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.

Attach Chute

Carrier Frame Tube Sockets

Nut on Top

Discharge Chute Installation

on Collection Deck

Assembly Instructions

Deck Discharge Deector Shield Installation (Side Discharge Models Only)

Attach the side discharge deector shield using 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 t 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 deector shield attached and in the

lowest possible position.

Attach Shield

Tilt-Up Roller Wheel Installation

Mount the two (2) tilt-up roller wheels on the brackets on the rear skirt of the deck housing using the P/N F543 axle bolt, 3/8 in. plain washer, 3/8 in. wave spring washer (between bracket and wheel) and 3/8-16 Whiz locknut. Tighten the axle bolt until the wheel rolls freely, but is not loose.

PTO Shaft

Guard

Attach

Spring

Roller Wheels

Tilt-Up Spring and Roller Wheel

Installation on Collection Deck

Discharge Shield Installation

on Side Discharge Deck

PTO Shaft Guard Installation

Position the shaft guard as shown and mount with two (2) 1/4-20 x 1/2 in. bolts.

Attach Guard

PTO Shaft Guard Installation

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.

Deck Support

Arms

Mower Deck Installation

2. Engage the deck carrier frame tube sockets on

the tractor support arms. (Refer to Discharge Chute Installation photo for socket location.) Slide the deck onto the support arms approximately 3 in. (76 mm).

Assembly Instructions

3. Align and connect the splined PTO shaft and socket halves, as shown in PTO Shaft Connec- tion photo. The PTO shaft has a pilot end to ease alignment of shaft; t shaft end into socket and rotate shaft until the splines line up as indicated by arrows, then push the deck and slide together.

Grease Deck

Support Arm

(Used to Align When Sliding Together)

PTO Shaft Connection

4. Slide the deck the rest of the way on the deck arms. If the deck is collection style (GHS equipped model), the discharge chute will need to be aligned and connected to the blower inlet during the last 2 in. (51 cm) of slide action on the support arms.

NOTE: Raising the mower body may be helpful in tting and guiding the deck chute into the blower.

5. Install the hitch pin through the hole on the 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.

PTO

Connection

Arrows on Shaft and Tube

Grease Deck

Support Arm

Counterweight

Springs Clip

Onto Body

With Forward

Body Tilted Up

Hitch Pins

Lock Deck on

Support Arms

Deck Counterweight Spring Installation

7. 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 required, 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.

Spring Tension Adjustment Nut

Located Under Lower

Spring Hook (Not Visible)

6. Raise mower body, then lift 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 Counter- weight Spring Installation photo.)

Assembly Instructions

Deck Leveling

The mower deck and support frame are jig welded; within normal tolerances, very little, if any, shimming should be required to level the deck. Tire pressure will inuence the levelness of the deck. Check the tire pressure of all pneumatic tires as a possible cause of the deck not being level.

1. Position mower on a smooth, level surface. Set the cutting height to the highest position - 4 in. (102 mm) - for easy access under the deck to measure blade height. Refer to ADJUSTING

CUTTING HEIGHT in Operating Instructions.

WARNING

The machine must be shut o󰀨 during this

procedure.

2. Check the side-to-side level. Rotate each blade sideways and measure the distance

from blade tip to ground on each side. If measurements vary more than 1/8 in. (3 mm), add a washer shim under the deck support pins on the low side to level the deck.

NOTE: A block of wood cut 4 in. (102 mm) high is a convenient gauge to measure blade height above ground during the leveling process.

4 in. (102 mm)

Wood Block

Should not vary more

than 1/8 in. (3 mm)

side-to-side

3. Check the front-to-rear level. Rotate the blades to point forward. Measure the distance from blade tip to ground on the front and rear. The rear of the blade should be 1/8 to 1/4 in. (3 to 6 mm) higher than the front of the blade; shim the rear (or front) deck support pins equally to achieve at least 1/8 in. (3 mm) di󰀨erence.

Should be 1/8 in. (3 mm)

to 1/4 in. (6 mm) higher

at the rear of the blade

Deck Leveling

4 in. (102 mm)

Wood Block

Assembly Instructions

PREOPERATING CHECKLIST

Before operating the mower for the rst time, and as a routine before daily operations, it is important to make sure the mower is properly prepared and ready for operation. The following is a list of items to be checked. (For a mower with frequent operation, some of these items will not need to be checked every day, but the operator should be aware of the condition of each.)

For proper fuel and lubricants refer to Specications.

FILL FUEL TANK

Raise the grass catcher and locate the fuel tank on top of the engine.

Fill the fuel tank using clean, fresh automotive grade unleaded gasoline (87 octane minimum, 10% ethanol maximum).

DANGER

Handle gasoline with care. Gasoline is highly ammable and its vapors are explosive. Use safe refueling procedures:

● DO NOT ll fuel tank with the engine

running.

● If the engine is hot, allow to cool before refueling.

● Use an approved fuel container.

● Fuel the mower outdoors.

IMPORTANT: DO NOT mix oil with gasoline. Always use fresh, automotive grade unleaded gasoline. DO NOT use gasoline containing greater than

10% ethanol. DO NOT use additives, such as carburetor cleaners, deicers, or moisture removing agents. DO NOT use gasoline blended with methyl

alcohol.

CHECK ENGINE CRANKCASE OIL LEVEL

Check the engine crankcase oil level before use and after each 8 hours of continuous operation. Refer to LUBRICATION for Checking Engine Crankcase

Oil Level in Maintenance Instructions.

CHECK AND SERVICE ENGINE AIR CLEAN-

ER SYSTEM

Check condition, cleanliness, and security of the complete air cleaner system (inspect air lter paper element every 100 hours). For detailed procedures, refer to CLEANING the Engine Air Cleaner

System in Maintenance Instructions.

CHECK ENGINE COOLING SYSTEM

Check that the engine cooling air intake screen is free of obstruction by grass clippings or debris and clean if required. Also, cylinder head cooling ns should be inspected and cleaned if any build-up of debris is noted. Refer to CLEANING the Cylinder Head Cooling Fins in the Maintenance Instructions for this procedure.

Check performance of the cooling system by starting the engine, holding a hand adjacent to the cylinder head (cooling air duct), and feeling the cooling airow.

● DO NOT smoke while refueling.

● Avoid spilling fuel; use a funnel or

spout.

● DO NOT overll the fuel tank; ll up to

about 1 in. (25 mm) below the top of tank.

IMPORTANT: DO NOT permit dirt or other foreign

matter to enter the fuel tank. Wipe dirt from around the ller cap before removing. Use a clean fuel storage container and funnel.

DANGER

Make sure to keep hands clear of exhaust

pipe, mu󰀪er, and moving parts when checking airow.

CHECK HYDROSTATIC TRANSAXLE OIL

LEVEL

Refer to LUBRICATION for Check Transaxle Fluid

Level in Maintenance Instructions.

INSPECT THREE (3) DRIVE BELTS

Engine, PTO, and Hydrostatic Ground Drive.

Assembly Instructions

CHECK FUNCTION OF ENGINE SERVICE

LIGHT

Turn ignition switch to the ON (RUN) position. The engine service light should illuminate, indicating normal function.

CHECK FUNCTION OF SAFETY INTERLOCK

SWITCHES

Tilt-Up Handle

Tilt-Up Hook and Latch Connected

Refer to Operating Instructions to check for proper operation of safety switches, both during engine starting and with the operator leaving the seat with tractor moving forward or with the mower blades engaged.

CHECK TIRE PRESSURE

Deck Caster Wheel* = 20 PSI (137 kPa) Drive = 15 PSI (103 kPa) Tailwheel = 20 PSI (137 kPa) * If equipped with optional pneumatic tires

CHECK SECURITY OF DRIVE TIRE MOUNT-

ING NUTS

The eight (8) Drive Tire mounting nuts should each be torqued to 75 to 85 lb·ft (102 to 115 N·m).

ADJUST MOWER CUTTING HEIGHT, IF RE-

QUIRED

Position the hitch pins in the four deck support pins. Refer to the “Cutting Height Adjustment” decal on the deck gearbox cover.

CHECK AND CLEAN GRASS BUILDUP UN-

DERNEATH MOWER DECK (and inside GHS blower, if equipped)

Refer to CLEANING the GHS Blower in Mainte- nance Instructions for blower cleaning information.

DANGER

Tilt-Up

Latch

Deck Lock

Lever

Tilt-Up

Hook

Deck Secured in TILT-UP Position

CAUTION

Do not operate machine with deck tilt-up pivot joint unlocked.

DANGER

Do not operate the mower with deck in tiltup position. Do not move the tractor with the deck in the tilt-up position.

CHECK MOWER BLADE CONDITION,

SHARPNESS, AND SECURITY OF MOUNTING

Never operate cutter blades with deck in raised position because it is hazardous.

The tilt-up deck can be secured in the raised position by unlocking the deck lock levers on each side of the carrier frame and inserting the deck hook into the tilt-up latch on the tractor body. Before operating the tractor, make sure to re-engage the deck lock levers after lowering the deck to the normal operating position.

The blade mounting nuts on gear driven decks should be torqued to 60 lb·ft (81 N·m), and the blade mounting bolts on belt driven decks torqued to

·ft (95 N·m). If blade sharpening is required,

70 lb refer to CHECKING/SERVICING for Sharpen Mow-

er Blades in Maintenance Instructions.

PERFORM ANY ADDITIONAL PROCEDURES

called for on the MAINTENANCE SCHEDULE

CHART in Maintenance Instructions.

Operating Instructions

CONTROL IDENTIFICATION, LOCATION, AND FUNCTION

CAUTION

Before operating the mower, become familiar with the location and function of all operator controls. Knowing the location, function, and operation of these controls is

important for safe and e󰀩cient operation

of the mower.

Engine Throttle

The throttle control lever (red knob) is located on the left side of the seat and is used to control engine speed. Moving the lever forward toward the FAST position increases engine speed; moving it back- ward toward the IDLE position decreases engine speed.

Throttle

Throttle Location

Blade Clutch

(PTO)

Front Body

Latch Release

Engine Low Oil

Warning Horn

(Not Visible)

Forward Speed

Control (FSC)

Ignition

Switch

Engine Service

Light

Hourmeter

Parking

Brake

Throttle

Steering

Levers

5 Amp

Circuit Breaker

OFF

START

Ignition Switch

Key Positions

Operating Controls

Operating Instructions

Forward Speed Control (FSC)

Forward Speed Control (FSC) has two functions: One is to set forward travel speed, and the other is to establish the NEUTRAL-PARK position. When the FSC lever is moved into the FORWARD posi- tion, a friction lock holds any forward speed setting from 0 to 7 mph (0 to 11 km/h). The ground speed is proportional to the lever position; the further the lever is advanced forward, the faster the tractor moves. It is not necessary to hold the FSC in position since the friction lock maintains the selected lever position. Pulling back on the steering levers overrides the FSC setting and slows or stops forward travel. Releasing the steering levers allows the tractor to resume forward travel at the speed set by the FSC lever. To stop and park the machine, the FSC lever is moved backward to the NEUTRAL-

PARK position.

Steering Levers

Each drive wheel is controlled by its own independent steering lever, for both steering function and FORWARD/REVERSE motion. The FSC lever sets the maximum forward speed, and also sets the forward position of the steering levers. The steering levers operate only with a backward pulling move- ment of the lever, which causes the drive wheel for that lever to rst slow down, stop, and then reverse with a full backward lever stroke. The levers are released to the FORWARD position for “straightahead” ground travel.

Front Body Latch Release

The front portion of the tractor body hinges forward for maintenance access and is latched down in the OPERATING position. To raise the body, move the latch release backward.

Front Body

Latch Release

Front Body Latch Release

NOTE: Pushing forward on the steering levers will

not cause any change in tractor motion - there will be no steering lever reaction and there will be no machine damage.

Blade Clutch (PTO)

The blade clutch lever is located on the right side of the seat behind the right fender and is used to engage and disengage the mower blades. The blade clutch lever has two positions. Pushing the lever DOWN engages the PTO that drives the mower blades. Pulling the lever UP disengages the PTO and engages the blade brake.

NOTE: On GHS equipped models, the Powerl motor and Grass-Pak® full signal switch are activated by engaging the blade clutch. Refer to Using the GHS Catcher in this section for a complete description of GHS operation.

Operating Instructions

The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers

LEFT WHEEL

STEERING LEVER

Forward Position

(No Control Change)

Neutral-Park

Position

Reverse Drive

Wheel Motion

Position

Fast

Throttle

Position

RIGHT WHEEL

STEERING LEVER

FORWARD SPEED

CONTROL LEVER (FSC)

Full Forward

Ground Speed

Position

Intermediate

Ground Speed

Position

Neutral-Park

Position

1. 2.

THROTTLE

PARKING

BRAKE

Idle

Position

8600-43

Engaged

Position

Engaged

Position

Disengaged

Position

Disengaged

Position

BLADE CLUTCH

(PTO)

Operating Controls (Top View from Drivers Point of View)

Operating Instructions

Parking Brake

The parking brake functions by locking a detent arm to a cog in the hydraulic motor rotor. Moving the lever FORWARD engages the parking brake; mov- ing the lever BACKWARD releases the brake.

IMPORTANT: Stop the tractor completely before engaging the parking brake. The parking brake uses a positive mechanical lock similar to the PARK position on an automotive automatic transmission. If the tractor is moving when the brake is engaged, it will result in sudden stoppage and possible internal damage to the transaxle.

NOTE: If pressure on the parking brake (e.g., parked on a hill) makes it impossible to release the parking brake with the parking brake lever, move the mower gently forward or backward to allow the brake detent to release.

Transaxle Lockout Arms

The transaxle lockout arms disengage the transaxles. By lifting the arms up and locking them into place with the shoulder on the arm in the chassis notch, the transaxles are released to permit freewheeling. By releasing the arms and recessing them back toward the chassis, the transaxles are engaged for normal operation. The transaxle arms in the LOCKOUT position are used to enable moving the machine without the engine running (e.g., for service). Refer to TRANSAXLE LOCKOUT in this section for operating instructions.

Transaxle

Lockout Arms

Engaged

Position

Parking Brake Engaged

Disengaged

Position

Parking Brake Disengaged

Transaxle Lockout Arm Location

NOTE: The transaxle lockout arms ends should be

completely retracted against the chassis, otherwise operation of the transaxle may be erratic.

Engine Service Light

The engine service light indicates that the engine Electronic Control Unit (ECU) has detected a fault in the engine performance. When this light illuminates during operation, contact an authorized Kohler Service dealer to diagnose the fault.

IMPORTANT: Continued operation of the engine with an illuminated engine service light will result in sub-standard performance and M AY cause engine damage if not corrected as soon as possible.

Operating Instructions

Engine Low Oil Warning Horn

Procedure Interval* Reminder

The engine low oil warning horn gives an audible signal that the engine oil quantity in the crankcase is below the safe operating range. The signal will also occur when operating the machine on steep slopes (greater than 25 degrees) and the angle of operation may cause engine damage from insu󰀩cient lubrication. If the horn is sounding when operating on at ground, stop the machine and check/adjust the engine oil level as noted in LUBRICATION for Check-

ing Engine Crankcase Oil Level in Maintenance In-

structions. If the horn is sounding when operating on a slope, stop the machine and check/adjust the engine oil level (on a level surface), and then reduce the angle of operation if the horn continues to sound on the slope.

IMPORTANT: Continued operation of the engine with the engine low oil warning horn sounding MAY cause engine damage if not corrected as soon as possible.

Oil Change (Break-In)**

Lubricate and Check

Levels

Oil Change 49-51 Hours***

4-6 Hours

24-26 Hours

C H

C H G

OIL

LUBE

OIL

* These intervals reect the actual time that the

reminder will ash (one hour prior to and one hour after the recommended interval).

** This reminder is only used one time.

*** In normal operating conditions, oil changes in

100-hour intervals are acceptable. Walker and the engine manufacturers recommend engine oil changes every 50 hours in extremely dirty or dusty conditions or for units with less than 100

hours annual use.

NOTE: The blinking hour glass on the display means that the meter is operating properly.

Engine Low Oil

Warning Horn

Engine Low Oil Warning Horn

Hourmeter

The hourmeter, which is located on the right front of the body, displays operating time accumulated while the PTO (blade drive) clutch is engaged.

The hourmeter provides maintenance reminders after certain hours of operation. The hourmeter screen will start ashing the reminder one hour prior to the recommended interval and will continue until one hour after the recommended interval (two hours). The hourmeter does not have a manual reset

function.

Hourmeter

Operating Instructions

Ignition Switch

The ignition switch is located on the right front of the body and is used to start and stop the engine. The switch has three positions: “O” is the OFF position, ON (RUN) is the position that the key returns to after starting, and “S” is the START position. When start- ing the engine, turn the key clockwise to the “S” position. Do not hold the key in the “S” position longer than 10 seconds. If the engine does not start, return the key to the “O” position for at least 60 seconds before making a restart attempt. Prolonged cranking can damage the starter motor and shorten battery life. Release the key when the engine starts, and it will return to the ON (RUN) position. To stop the engine, rotate the key counterclockwise to the “O” position.

Circuit Breakers

A manual reset 5 amp circuit breaker is located above the hourmeter. The button pops out if the circuit breaker trips. This circuit breaker protects the circuits to the safety switch relays and GHS. In addition, an auto reset 30 amp master circuit breaker is located in the rear right hand side of the chassis, and protects the charging system.

STARTING THE ENGINE

CAUTION

Before operating the mower, read and understand all Safety Instructions and Operat- ing Instructions.

CAUTION

A safety interlock switch system PREVENTS CRANKING the engine with any one of these three controls in the OPERATING position: (1) Forward Speed Control out of neutral, (2) blade clutch (PTO) engaged, or (3) parking brake disengaged. If the engine cranks otherwise, the safety system is not working and should be repaired or ad justed before operating the mower. DO NOT disconnect safety switches; they are for the operator’s protection.

2. Move the throttle 1/4 to 1/2 open (toward FAST) . Turn the ignition switch to the START position to start the engine. Release the key to ON

(RUN) position as soon as the engine starts.

IMPORTANT: If the engine fails to start after

approximately 10 seconds of cranking, the engine should be checked before further crank ing. Turn the key to the OFF position and allow a 60 second cool-down period between starting attempts. Failure to follow these guidelines can damage the starter motor and shorten battery life. Consult your Walker dealer or authorized Kohler dealer for additional help.

ADJUSTING GROUND SPEED AND STEERING

CAUTION

WARNING

NEVER run the engine in an enclosed or poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.

1. Before attempting to start the engine, make sure the operator is in the seat, the Forward Speed Control is in NEUTRAL-PARK position, the parking brake is ENGAGED, and the blade clutch is DISENGAGED.

Learn to START, STOP, and MANEUVER the mower in a large, open area.

If the operator has not operated a ma chine with LEVER STEERING OR DUAL HYDROSTATIC TRANSMISSIONS, steer ing and ground operation should be learned and practiced until the operator is completely comfortable handling the ma chine BEFORE ATTEMPTING TO MOW.

Operating Instructions

DANGER

Keep feet on footrests at all times when the machine is moving. Never operate the tractor without a deck or implement installed.

1. Move the FSC out of NEUTRAL-PARK position to the desired forward speed. DO NOT hold for ward on steering levers. It is not necessary to hold the FSC lever in position since a friction lock maintains the selected lever position (and forward travel speed).

WARNING

In case the transmission drive belt breaks 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: If the FSC lever will not stay in the

selected position, the friction lock needs to be adjusted. Refer to ADJUSTMENTS for Step 7 -

Forward Speed Control Friction Adjustment in

the Maintenance Instructions.

2. Steer by pulling the lever on the side of desired

direction of turn, e.g., pull the LH lever to turn left. To minimize the possibility of overcontrol, use only one hand on both steering levers.

Pull Steering

Levers With

Left Hand

Forward Speed Control

(FSC)

NOTE: This is exactly the same procedure used to normally stop and park the machine.

CAUTION

An operator presence switch (seat switch) will cause the engine to stop if the parking brake is in the DISENGAGED position and/ or the FSC is out of the NEUTRAL-PARK position (tractor stationary or moving forward) and the operator is not in the seat. The function of this switch should be

checked by the op erator raising o󰀨 the seat, rst with the parking brake DISEN-

GAGED, and then with the tractor moving forward; the engine should stop. In each case, if the safety sys tem is not working, it should be repaired or replaced before operating the mower. DO NOT disconnect the safety switches; they are for the operator’s protection.

Keep Feet on Footrest

When Moving

Correct Operator Hand Position

on the Controls

Operating Instructions

Control into the NEU TRAL-PARK

Beginning Recommendations are:

♦ Learn operation of the mower in an open

area away from buildings, fences, and

ob structions. Learn operation on at

ground BEFORE operating on slopes.

♦ Start maneuvering the mower with SLOW

engine speed and SLOW Forward Speed Control setting until familiar with all operat ing characteristics.

♦ Remember it is not necessary to hold the

steering levers forward (a unique Walker feature); always PULL on the levers for steering or for reverse motion of the mower.

♦ Learn to operate the mower with your left

hand on the steering levers and right hand on Forward Speed Control. The use of two hands on the steering levers tends to cause overcontrol.

♦ Learn to operate the steering levers with

smooth action. Jerky movements are hard on the transmission and lawn. For sharp turns, do not allow the inside wheel to stop and twist on the grass. Pull the steering le ver controlling the inside wheel into reverse for a smooth “rolling” turn (one wheel roll ing forward while the other rolls backward).

♦ Practice maneuvering the mower until

you can make it go exactly where you are aiming.

♦ Remember, for an emergency stop, or

in case of loss of control, machine movement can always be stopped quickly by pulling the Forward Speed

position.

WARNING

When moving forward, DO NOT suddenly put the tractor in reverse by rapidly pulling on the steering levers, especially when going downhill, as this can lift the tractor tail

wheel o󰀨 the ground and set up a bucking

motion due to operator overcontrol. If bucking does occur, immediately stop the bucking action by pulling the Forward Speed Control (FSC) lever into the NEUTRAL-PARK position.

4. The FSC may be adjusted forward for faster ground speed and backward for slower ground speed. When mowing, ground speed should be adjusted to match the load on the cutter blades, i.e., as the engine pulls down in heavy cutting, pull back on the FSC lever to reduce ground speed. Adjusting ground speed helps maintain a balance between engine power and blade speed for high-quality cutting action.

5. Stop ground travel by pulling both steering levers backward to the NEUTRAL position (trac tor not moving) and then moving the FSC lever to the NEUTRAL-PARK position.

NOTE: If the tractor creeps forward or backward with the FSC lever in the NEUTRAL- PARK position, the transmission control needs to be adjusted. Refer to ADJUSTMENTS for

Transmission Control, Step 3 - Neutral Function Adjustment in the Maintenance Instructions.

ENGAGING THE BLADE DRIVE

1. Set the engine throttle at about 1/2 speed. Do not attempt to engage the blade clutch at high engine speeds. This will drastically short-

en drive belt life. Use only moderate engine speed when engaging the blade clutch.

3. Reverse direction of the mower by pulling both levers backward.

NOTE: Smooth action on the steering levers will produce smooth mower operation. Remember to keep the engine and ground speed slow until learning the control response.

2. Push the blade clutch lever SLOWLY forward to

en gage the mower blades. For disengagement, pull the blade clutch lever backward

SLOWLY.

Operating Instructions

Engaged

Position

Blade Clutch Engaged

Disengaged

Position

CAUTION

If the cutting blades strike a stationary object while mowing, stop the mower immediately, disconnect the spark plug wire, lift the deck, and inspect the deck and blades thoroughly for damage. Make sure that the blade timing has not been dis turbed (the blades should be at 90 degrees to each other). Refer to REPLACING/RE PAIRING the Blade Overload Shear Bolts in

nance Instructions

Also, make sure the blade retain ing nuts are torqued to 60 lb·ft (81 N·m).

STOPPING THE MACHINE

1. Pull the steering levers to the NEUTRAL posi-

tion and then move the FSC lever backward to the NEUTRAL-PARK position.

2. Slow the engine to a fast idle; put the throttle in the 1/2 throttle position.

if blades are out of time.

Mainte-

Blade Clutch Disengaged

CAUTION

An operator presence switch (seat switch) will cause the engine to stop if the blade clutch is engaged and the operator is not in the seat. The function of this switch should

be checked by the op erator raising o󰀨 the

seat and engaging the blade clutch; the engine should stop. If the switch is not working, it should be repaired or replaced before operating the mower. DO NOT disconnect the safety switches; they are for the operator’s protection.

IMPORTANT: DO NOT engage the blade clutch

when transporting the mower across drives, sidewalks, loose materials, etc. DO NOT engage the

blade clutch with the PTO shaft disconnected

(the mower deck removed from tractor).

3. Disengage the blade clutch.

IMPORTANT: DO NOT disengage the blade clutch with high engine speed (above 1/2 throttle) since the brake action on the blade drive will cause premature wear of the brake band.

WARNING

A brake stops the cutter blades (and blower on GHS equipped models) from

freewheeling within ve (5) seconds after

disengaging the clutch. If the brake system malfunctions and the blades do not

stop within ve (5) seconds, the brake

should be adjusted or repaired before operating the mower. Contact your Walker dealer, or refer to ADJUSTMENTS of Blade Brake Band Adjustment in Maintenance

Instructions.

4. Slow the engine to idle, put throttle in IDLE posi- tion; and turn the ignition switch OFF.

Operating Instructions

WARNING

ADJUSTING CUTTING HEIGHT

Remove the key from the ignition switch when leaving the mower unattended. This will prevent children and inexperienced operators from starting the engine.

5. Engage the parking brake by moving the lever forward.

IMPORTANT: The hydrostatic transmissions lock to prevent the mower from rolling freely with the engine stopped. However, if the mower is parked on a slope, it is necessary to EN- GAGE the parking BRAKE to prevent the mower from creeping. This is due to a small amount of slippage in the hydrostatic transmissions, especially when transmission uid is warm. Also, engaging the parking brake is recommended when stopping or parking the machine in a conned space with little tolerance for movement.

WARNING

The engine must be stopped before adjusting cutting height. Disengage the blade clutch (PTO), engage the parking brake, stop the engine, and remove the ignition key. Wait for all move ment to stop before

getting o󰀨 the seat.

Cutting height is adjusted by positioning the four (4) re tainer hitch pins in a series of six vertical holes on the deck support pins. Lift handles have been provided on each end of the deck to assist in raising the deck while positioning the hitch pins. Cutting heights range from 1.5 in. (38 mm) [top holes] to 4 in. (102 mm) [bottom holes] in 1/2 in. (13 mm) incre ments.

Lift Handle

Deck Support

NOTE: The emergency stop procedure is exactly

the same procedure used to normally stop and park the machine.

Washer

Hitch Pin

Cutting Height Adjustment

TRANSAXLE LOCKOUT

IMPORTANT: DO NOT TOW this mower faster than

2 mph (3.2 km/h) with the transaxle lockout engaged. Towing can produce excessive internal pressure and damage the transaxle(s).

To move the mower with the engine NOT running (dead battery, maintenance, etc.), the transaxles need to be unlocked (released).

1. Raise the body.

2. Pull up on each transaxle lockout arm and move toward the center of the machine to engage the step that holds the arm in the UP (unlocked) position.

Operating Instructions

3. The mower will “freewheel” with the arms in the

LOCKOUT position. The levers must be in the highest position to completely unlock the transaxles.

Transaxle Lockout Arm

Transaxle Lockout Arm - Freewheel Position

4. After moving the mower, release the arms, plac-

ing them down in the normal OPERATING posi- tion. The transaxle lockout arm ends should be completely retracted against the chassis, otherwise operation of the transaxle may be erratic.

RECOMMENDATIONS FOR MOWING

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.

Transaxle Lockout Arm

Transaxle Lockout Arm - Normal Operating

Position

Avoid Low Hanging Branches

IMPORTANT: Operate the engine at full throttle

when mowing, to allow the engine to produce full horsepower and to increase e󰀩ciency of the engine cooling system.

● Keep the mower deck and discharge chute

clean.

● Mow with sharp blades. A dull blade tears the

grass (resulting in poor lawn appearance) and uses extra power (slowing the mowing speed).

● It is preferable to cut grass when it is dry and not too tall. Mow frequently and do not cut

grass too short. (For best appearance, cut o󰀨 1/3 or less of existing grass height.)

Operating Instructions

● When mowing, operate the engine at full throt- tle for the best cutting action and performance

of the grass handling system (GHS). Mowing with a lower engine RPM causes the mowing blade to not cut clean and tear the grass. The

engine is designed to be operated at full speed.

● When mowing in adverse conditions (tall and/or wet grass), mow the grass twice. Raise the mower to the highest setting - 4 in. (102 mm) for the rst pass and then make a second pass cutting to the desired height.

● Use a slow setting on the FSC for trimming operations.

● Make sure the mower is leveled properly for a

smooth cut. Refer to Deck Leveling in Assembly Instructions.

● Use an alternating stripe mowing pattern for best appearance and vary the direction of the

stripe each time the grass is mowed to avoid wear patterns in the grass.

● Avoid damage to the grass by slipping and skidding of the drive tires. Use smooth control move ments of the steering levers since the transaxles are “power boosted controls” and jerk ing the levers can easily slip the tires. For sharp turns, do not allow the inside wheel to stop and twist on grass; pull inside steering lever into reverse for a smooth “rolling” turn (one wheel rolling forward while the other rolls backward).

Operating Instructions

● When using a side discharge mower deck, the side discharge deector shield must not be re- moved and must be kept in the lowest possible position to deect grass clippings and thrown objects down ward. Orient the side discharge away from side walks or streets to minimize cleanup of clippings. When mowing close to obstacles, orient the side dis charge away from obstacles to reduce the chance of damage to property by thrown objects.

Discharge

Shield

Maximum Recommended

Slope - Do Not Operate

on Steep Slopes

60 lb·ft (81 N·m)

8600-14

8600-9

Side Discharge Deector

Shield in Lowest Position

● When operating on a slope, reduce speed and use caution to start, stop, and maneuver. Avoid

sharp turns or sudden changes in direction. The

maximum recommended slope operating angle is 15 degrees or 27% grade.

15°

14 in.

52 in.

Maximum Recommended Slope

DANGER

Do not mow or dump grass within 5 feet (1.5 meters) of an embankment or retaining

wall with drop o󰀨.

5 FT

MINIMUM

No Driving Zone

Operating Instructions

RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT

To avoid potential deck and/or tractor damage while using the tilt-up deck, the following recommendations are o󰀨ered:

● Do not move the tractor with the deck in the tilt-up position since both the roller wheels (on the back of the deck) and the GHS discharge chute may be damaged by moving the tractor. The tilt-up conguration should only be used when the tractor is parked.

● The tractor body should never be tilted for- ward with the deck in the tilt-up position. This

can cause the deck to unhook from the tractor and fall with considerable force, potentially causing deck or tractor damage and/or bodily injury.

● When transporting a tractor with the deck in the tilt-up position (on a truck or trailer), the deck should be secured to the vehicle with a strap or rope (stop vertical movement). This will prevent the deck from bouncing on the rear roller wheels (causing breakage). This will also prevent the deck from unhooking from the tractor and falling, potentially causing deck or tractor damage. Damage to other items parked in front of the deck may also occur.

Operating Instructions

GRASS HANDLING SYSTEM (GHS) GHS Model Only

PTO and Blade

Gear Drive

PTO

Clutch

Powerl ®

Drive Motor

“Full” Signal

Horn

Actuator

Rod

Grass-Pak®

Vane Switch

Grass

Catcher

Exhaust Screen

(Removable)

Catcher Door Spring (Not Visible)

Catcher

Air Exhaust

Catcher

Door

Powerl ®

Delivery Spout

Shear Bolt

Collection

Mower Deck

Dump

Handle

Catcher Delivery

Chute

Body Chute

Assembly

Blower

Deck

Discharge Chute

GHS Flow and Components

Operating Instructions

General Information

The Grass Handling System (GHS) consists of a rear discharge, collection mower deck connected to a 12.75 in. (32 cm) blower and a rear mounted grass catcher with 7.0 bushel (246 liters) capacity. The GHS blower operates any time the mower blade clutch is engaged and moves grass through the rear discharge deck chute into the grass catcher. Blower airow is exhausted out the back of the grass catcher, through a ltering screen. When the grass catcher is full and needs to be emptied, a “full” signal horn alerts the operator. When the “full” signal horn sounds, it is important to stop mowing to prevent overlling and clogging of the blower system.

IMPORTANT: Normally, the GHS blower operates with no maintenance or cleaning required. However, under certain operating conditions, the inside of the blower housing may accumulate a deposit of dirt, causing wear and binding of the blower wheel. Normally, dirt buildup occurs when mowing a com-

bination of dirty and damp grass, especially in

the springtime. When operating in these conditions, check the blower wheel frequently for binding and clean the blower housing as required. Refer to CLEANING the GHS Blower in Mainte-

nance Instructions.

NOTE: In Autumn, when using the GHS mower to

vacuum leaves, it is recommended to raise the front of the mower deck 2 to 3 notches [1 to 1-1/2 in. (25 to 38 mm)] higher than the rear. This will avoid “bulldozing” leaves, particularly when the leaves are piled in a thick layer. To make this ad justment, the hitch pins in the two (2) front deck support pins are repositioned 2 to 3 notches higher while leaving the rear pins in their original position.

DANGER

NEVER operate the GHS catcher with the back door open. Objects may be thrown

out the back of the catcher with su󰀩cient

force to cause serious injury to bystand ers or property damage.

DANGER

ROTATING BLOWER BLADES

NEVER operate the GHS blower with the blower discharge chute uncovered (grass catcher in the dump position) since dangerous projectiles may be thrown. NEVER put hands into the blower discharge chute for any reason. Use a stick or similar instrument to remove any material if clog ging has occurred.

CAUTION

NEVER leave grass clippings in the grass catcher after mowing. Damp clippings generate heat as they decompose. This MAY cause spontaneous combustion.

Clogging Checklist

In case of clogging, there will be a distinct change in the sound of the blower, i.e., the blower sound

will stop. Also, the mower deck will begin to leave a trail of grass clippings. When this occurs, stop the engine, disconnect the spark plug wire, and make

sure all movement has stopped before attempting to unclog.

DANGER

NEVER place hands under the mower deck or in the GHS blower discharge chute. Use a stick or similar tool to remove any clogged material.

Normally, any clogging will rst develop at the back of the mower deck in the discharge opening into the blower chute. Clogging at this point does not indi-

cate a particular problem in this part of the system, but is a symptom of something restrict ing

the ow of material throughout the entire system. The following list of items should be checked if a pattern of clogging begins to develop. All of these items are capable of causing clogging at the back of the deck.

Operating Instructions

● Check to see if the mower blades are installed

for the correct rotation. The blade cutting edges should move towards each other at the front of the deck on standard rotation decks (e.g., DC42), and towards each other at the back of the deck on reverse rotation decks (e.g., DC36R).

Blades Must Operate at

Right Angles (90 Degrees)

FORWARD

Rear Discharge

Chute

Blade Rotation for Standard Rotation

GHS Mower Deck (Bottom View)

Blades Must Operate at

Right Angles (90 Degrees)

Mounting Nut

Torque = 60 lb·ft

(81 N·m)

FORWARD

● Check that the interior of the deck housing and

ba󰀪ing is reasonably clean and free of grass and dirt buildup. While some degree of material buildup can be tolerated, a point is nally reached where the ow of air and grass clippings is restricted.

NOTE: One condition that quickly causes a buildup of material in the deck housing is mowing grass and/or weeds which are “juicy.” The material collects under the deck with sticky, green juice. Clo ver and weeds are especially a problem. The mower deck will need to be cleaned frequently when operating in these conditions.

● Check the deck cutting height setting. When

working in thick, tall grass, lower deck settings

[1.5 to 2 in. (38 to 51 mm) cutting heights]

tend to restrict airow from moving into and under the deck. Raising the deck cutting height will signi cantly increase airow and reduce clogging when working in thick, tall grass.

● Check the interior of the chute connecting the

mower deck to the blower for smoothness and

freedom from obstruction.

● Check the blower wheel for bent blades and excessive clearance between the blade tip and

the blower housing. A clearance greater than 1/8 in. (3 mm) will cause a signicant loss of blower performance.

Rear Discharge

Chute

Blade Rotation for Reverse Rotation

GHS Mower Deck (Bottom View)

● Check the amount of at section remaining at blade tip. This is the area that is ground away (re moved) when the blades are sharpened. If too much of the at section is removed, the “air lift” performance or “shovel” e󰀨ect of the blade deteriorates to the point that discharge of grass clippings into the blower chute is marginal. Replace cutter blades if less than 3/4 in. (19 mm) at section remains at the blade tip.

Mounting Nut

Torque = 60 lb·ft

(81 N·m)

● Check the blower discharge chute into the grass

catcher for smoothness and freedom from

ob struction.

● Check the elbow inside the grass catcher for a

buildup of material in the radius of the elbow. In certain conditions (damp/dirty grass) a considerable “clump” of material can accumulate at this point, greatly restricting material and airow.

● Check that the openings in the removable air exhaust screen in the grass catcher are not plugged. If the screen is clogged, refer to Cleaning the GHS Exhaust Screen in this section.

NOTE: An optional exhaust screen with larger

holes (3/4") is available for use when mowing in wet grass; the screen provides less airow restriction and more clog resistance (use standard screen in dry conditions to avoid excessive material blowing out of the catcher).

Remember, anything that restricts airow or material ow along the entire path from the mower deck to the grass catcher can cause clogging.

Operating Instructions

Using the Tilt-Up Deck

Refer to CLEANING of Grass Buildup in Mower Deck Housing in Maintenance Instructions.

Using the GHS Catcher

Powerl

The GHS catcher has an oscillating grass delivery spout (POWERFIL

) which is designed to spread

grass clippings throughout the interior of the grass catcher (even when mowing wet, heavy grass). The oscillating action may be checked by turning the ignition switch to the ON (RUN) position and moving the blade clutch to the ENGAGED posi- tion. The spout should oscillate approximately 35 cycles per minute.

NOTE: If the grass spout fails to oscillate, the clutch switch should be checked for function.

“Full” Signal Horn

The GHS catcher has a “full” signal horn to alert the operator to dump the catcher when it is full (to prevent overlling and clogging). The “full” signal horn is activated by a vane switch (Grass-Pak

switch) mounted on the grass delivery spout. Oscillating action of the spout triggers the vane switch as grass begins to ll in around the spout when the catcher is almost full.

The “full” signal horn is designed to operate (sound) when the grass catcher is almost full. The timing of the signal is adjustable by changing the position of the vane on the Grass-Pak

switch. If the signal is coming on too soon (catcher not completely full) or too late (grass clogging in catcher spout and deliv ery chute), refer to ADJUSTMENTS for GHS

“Full” Signal Horn Adjustment

structions

Maintenance In-

NOTE: The horn signal should be adjusted to sound BEFORE the catcher is completely full to give the operator time to react and stop mowing. An indication the horn signal is coming on too late (delayed too much) is if grass clippings are falling out of the grass catcher delivery chute when the catcher is dumped.

The “full” signal function may be checked by turning the ignition switch ON (RUN), engaging the blade clutch (engine not running), opening the catcher back door, and triggering the Grass-Pak® vane by hand as it oscillates. The horn should sound as the switch is moved in one direction.

WARNING

DO NOT test the Powerl® oscillation or

Grass-Pak® switch with the engine running. Projectiles may be thrown out of the grass delivery spout, and COULD cause serious injury.

Operating Instructions

Cleaning the GHS Exhaust Screen

To remove the grass catcher screen for cleaning, open the catcher door, push forward and pull down on the grass catcher screen knobs (on either side of the screen), and slide the screen out. Use a high pressure washer or water spray and brush to clean the screen.

CAUTION

Use leg muscles and rm footing when lift-

ing the catcher to dump; avoid bending at the waist and using back muscles in order to prevent back injury.

Keeping the catcher exhaust screen clean and open is essential to good performance of the catching system. In some mowing conditions, e.g., wet and dirty, it will be necessary to clean the screen frequently to avoid clogging the mower deck, blower, and chutes due to airow restriction.

Grass Catcher

Screen

Removal Knobs

(Not Visible)

Grass Catcher Screen Removal for Cleaning

Dumping the Catcher

Tailgate Dumping

1. Open the back door by lifting on the door handle.

2. Tilt the catcher back to dump by lifting on the

catcher lift/dump handle on the lower front corner of the catcher.

3. Lower the catcher smoothly down to the normal

operating position. DO NOT allow the catcher

to drop down - the gas spring, that holds the catcher in the raised position, is not a shock absorber for lowering the catcher.

4. Close the door by pulling down on the door

handle. The door should close smoothly with the assistance of the gas springs. If the dampening springs are not functioning properly, they should be replaced to prevent the door from slamming closed and possibly causing a pinch point.

DANGER

Do not mow or dump grass within 5 feet (1.5 meters) of an embankment or retaining

wall with drop o󰀨.

For dumping, the catcher either tailgate dumps into a disposal area or dumps into the optional dump bag. The dump bag is a reusable nylon fabric bag designed to conveniently move grass clippings from the catcher to a remote disposal area or container.

Operating Instructions

Using the Dump Bag

1. Open the back door by lifting on the door handle.

2. Orient the dump bag with one of the handle straps on the bag opening facing up.

Tailgate Door Handle

(Not Visible)

Hook Bag

on Bumper

Catcher Lift /

Dump Handle

Positioning Dump Bag on Catcher

3. Hook the bottom of the bag over the rear bumper while lifting on the handle strap on bag

opening.

4. Tilt the catcher back to dump into the bag by lifting on the catcher lift/dump handle on the lower front corner of the catcher with the one

hand while continuing to hold up on the bag strap with the other hand. Refer to photos for

posi tioning the bag and dumping.

Dumping Catcher into Dump Bag

5. Lower the catcher smoothly down to the normal

operating position. DO NOT allow the catcher

to drop down - the gas spring, that holds the catcher in the raised position, is not a shock absorber for lowering the catcher.

6. Close the door by pulling down on the door handle. The door should close smoothly with the assistance of the gas springs. If the dampening springs are not functioning properly, they should be replaced to prevent the door from slamming closed and possibly causing a pinch point.

Operating Instructions

Power Dump Option

When equipped with the optional power dump system, the operator dumps the catcher while sitting in the seat. A toggle switch operating a power ram is used to raise and lower the catcher. The back door automatically opens and closes during the dump

cycle.

Hold the toggle switch UP or DOWN to RAISE or LOWER the catcher. When the catcher reaches the

full raised or lowered position, the power ram clutch will make a ratcheting sound. Release the toggle switch as soon as this sound is heard. DO NOT

operate the ram with the clutch ratcheting for an extended time as this will cause extra wear on the

clutch mechanism.

CAUTION

The operator should be in the seat and bystanders stay clear when the power dump is operating. The power dump is used ONLY for tailgate dumping. Do not attempt to use the optional dump bag or any other bag with the power dump.

NOTE: If grass tends to hang up in the catcher

after raising the catcher with the power dump, “jiggle” the steering levers and make the tractor bounce a little to unstick the grass and make it slide out of the catcher.

NOTE: With the power dump mechanism in the normal operating position (catcher down), the catcher can be manually raised for access to the engine and the catcher can be manually dumped.

Operating Instructions

Lift Channel

Gas

Spring

Power Dump

Ram Actuator

Cable Guide

Grass Catcher

Lift

Arm

Catcher Door

Gas Spring

Door Arm

Actuator

RH Catcher

Door Arm

Catcher

Door

LH Catcher

Door Arm

Guard

Power Dump

Switch

Cable

Assembly

1. 2.

8600-43

Power Dump

Mount

Power Dump Components

CAUTION

Maintenance Instructions

MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL S14i

Service Item

Check Engine Crankcase Oil Level x 50

Check/Clean Engine Air Cooling System* x 59

Clean Grass Buildup Under Deck x 60

Clean GHS Exhaust Screen* x 61

Clean GHS Blower* x 61

Service Mower Blades x 64

Check Security of Air Filtration Components x 63

Lubricate Grease Fittings and Oil Points* x 51

Check Battery Electrolyte Level x 63

Check Transaxle Fluid x 55

Check Tire Pressure x 64

Check Drive Belts (Engine, PTO, Ground Drive) x 65

Check Deck Gearbox Oil Seals x 65

Check Safety Switch System x 67

Clean or Replace Air Cleaner Precleaner* x 58

Change Engine Crankcase Oil** x 51

Check/Clean Air Filter Element* x 58

Clean Transaxle Housing x 62

Check Security of Drive Tire Mounting Nuts (75 to 85

Check Blade Brake Action x 66

Check/Adjust Blade Clutch x 79

Replace Air Filter Element*** x 58

Change Transaxle Oil and Filter

Check/Adjust Engine Valve Clearance x 66

Replace Fuel Filter x 72

Clean Engine Cooling Fins x 59

Check Fuel Lines and Clamps x 66

Service Battery x 63

Check/Adjust Vertical Position of Grass-Pak

Check/Adjust FSC Friction Lock x 67

Check Transmission Control Settings x 66

Check PTO U-Joints for Wear/Looseness x 67

Check/Regap Spark Plug x 66

Replace Fuel Lines and Clamps x 66

Replace Ignition Wire x 66

Switch

lb·ft)

Maintenance procedures requiring special training or tools should be performed by a trained technician.

Daily

Hours

100

Hours

x 64

400

Hours Yearly

x 56

x 82

Every

2 Years

Page

Ref.

* More often in extremely dusty or dirty conditions (refer to notes about air cleaner element in IMPORTANT TIPS FOR CARE OF THE KOHLER ENGINE)

** Change engine oil after rst 5 hours of operation of a new engine (break-in period)

*** Air cleaner is engine mounted Kohler Quad-Clean

Δ Change transaxle oil after the initial break-in period of 75-100 hours operation

™ unit, replace lter every 400 hours or when worn or damaged

Maintenance Instructions KOHLER TIPS

IMPORTANT TIPS FOR CARE OF THE KOHLER ENGINE

Fuel System

● Fuel must be clean—free from water, dirt, and or ganic material.

● Change the fuel lter on a regular basis or when contamination is suspected or found in the fuel.

● The fuel injection pump module is a sealed unit and is not serviceable; opening the fuel pump module will void the warranty. Additionally, the fuel pump module and the fuel line between it and the injector are pressurized. For service of the pressurized fuel injection system including the fuel pump module, fuel line, and fuel injector, contact your Walker dealer or authorized Kohler service dealer.

Starting/Stopping

● Start engine with the throttle advanced o󰀨 idle (1/4 to 1/2 throttle). This will aid starting, especially in cold weather.

● Keep the battery fully charged.

● Match crankcase oil viscosity to the ambient

tem perature, allowing the engine to crank faster and start easier.

● Allow engine to run at idle for a few seconds be fore stopping engine to avoid run-on or backring.

Cooling System

CAUTION

DO NOT use water or a pressure washer to clean the cooling system on an air-cooled engine; mud may form under the cooling shroud on the cylinder head and cooling fan resulting in engine overheating.

● Keep engine air intake screen and cylinder head ns free of grass clippings, cha󰀨, and dirt. Inspect intake screen and cooling ns for cleanliness and no damage.

● Check performance of the cooling system by starting the engine, holding a hand adjacent to the cylinder head, and feeling the cooling airow.

DANGER

Make sure to keep hands clear of exhaust

pipe, mu󰀪er, and moving parts when checking airow.

● Operate the engine at full speed when mowing. This allows the engine to produce full horsepower and move more cooling air through the engine cool ing ns.

Air Cleaner System

● Use only Kohler air cleaner and precleaner lters. After market lters may not seal in the air cleaner housing, allowing dirt to enter the engine. Also, af termarket lters often skimp on the ltration media and require more frequent replace ment (see following instructions).

● DO NOT overservice or frequently “disturb” the air lter. A dirty air lter actually cleans better than a new one. Changing and cleaning the air lter too often can actually reduce lter e󰀩ciency and increase the opportunity for traces of dust to enter the engine.

● When the air lter element is removed or replaced, make sure all dust is cleaned out of the air cleaner housing. Use a damp cloth and wipe the interior of the canister clean, including both the inside and outside surfaces of the outlet tube (a lit tle dirt left here will be sucked into the engine and reduce engine life). When the lter is reinstalled, make sure it is seated tight and

straight on the base plate for proper sealing.

Oil

● Single viscosity or multi-viscosity oils may be used with the viscosity matching ambient temperatures for the engine operating conditions. This will aid starting in cold weather and assure proper lubrication in hot weather.

Maintenance Instructions LUBRICATION

LUBRICATION

WARNING

DO NOT attempt to lubricate the machine with the engine running. Disengage the

PTO clutch, shut o󰀨 the machine, and re-

move the ignition key.

Proper lubrication is an important maintenance procedure. It reduces wear and makes the machine quieter and easier to operate.

Engine Oil

Engine Break-In Oil

No special break-in oil is required. The engine is serviced with 10W-30, Service Class SJ oil from the factory. Change the oil after the initial engine break-

in period of 5 hours. Thereafter, change oil after every 100 hours of operation.

4. Remove the dipstick again and check the oil level on the dipstick. The oil level should be within the “Operating Range” on the dipstick (between the low level and the “F” mark).

IMPORTANT: DO NOT operate engine without

a su󰀩cient oil supply in the crankcase. DO NOT operate with oil level below the LOW LEVEL mark or above the FULL (F) mark on the dipstick.

5. If additional oil is needed, refer to Specications for proper crankcase lubricant. Fill up to, but

not above, the FULL (F) mark on the dipstick.

IMPORTANT: DO NOT overll the crankcase

(oil above “F” mark) as this CAN result in engine overheating, loss of power, and possible engine damage.

Checking Engine Crankcase Oil Level

Check the engine crankcase oil level before use and

after each 8 hours of continuous operation.

IMPORTANT: The importance of checking and

maintaining the proper crankcase oil level cannot be overemphasized. Check the oil level BEFORE

EACH USE.

1. Park the mower on a level surface with the engine stopped. Also, make sure the engine is

cool and oil has had time to drain into the sump [allow at least ve (5) minutes after stopping the engine].

IMPORTANT: NEVER check or add oil with the engine running.

2. Before removing the dipstick, clean the area around the dipstick opening on dipstick tube to keep any dirt or debris out of the engine.

3. Remove the dipstick, wipe o󰀨 with a clean rag, then reinsert the dipstick into the tube and press all the way down.

Full Mark

Operating

Range

Dipstick Operating Range

{

Low Level

IMPORTANT: When reinstalling the dipstick, make sure the arrow on the cap is pointing toward the notch in the dipstick tube.

Maintenance Instructions LUBRICATION

Changing Engine Crankcase Oil

Change the engine crankcase oil after every 100 hours of operation as follows:

1. Park the mower on a level surface with the en gine stopped. The engine oil should be

warm before draining. If not warm from operation, start the engine and run a few minutes to warm the oil.

2. Before removing the dipstick, clean the area around the dipstick to keep any dirt or debris out of the en gine.

3. Remove the dipstick and the oil drain plug and drain the oil into a suitable container. Be sure to allow ample time for complete drainage.

Oil Drain

Oil Drain Location

(View from Lower Right Side of Tractor)

5. Fill the crankcase (through the dipstick tube) with new, clean oil. Use only crankcase lubricants recommended by the engine manufacturer. Refer to Specications in this manual or the engine owner’s manual. Use the recommended oil viscosity for the expected ambient temperature. Oil with the correct viscosity will aid starting in cold weather and assure proper lubrication in hot weather. Fill to FULL (F) mark on the dipstick; crankcase capacity is 1.2 quarts (1.1 liters).

IMPORTANT: Check the dipstick reading before adding the last 1/2 pint of oil and ll only to the FULL (F) mark. The oil level should never be over the FULL (F) mark on the dipstick; overlling can result in engine overheating and loss

of power.

6. Start and run the engine. Stop the engine, recheck the oil level, and add oil if necessary.

Grease Fitting and Oil Point Lubrication

Lubricate the grease ttings and oil points after every 25 hours of operation. Lubricate more often

when operating in dusty or dirty conditions. Use SAE general purpose lithium or molybdenum base grease for grease ttings and light machine oil (SAE 10) to lubricate oil points. Lubricate the

locations shown in the Chassis and Deck Lubrication Points illustration.

NOTE: PTO universal joints (on the deck and trac- tor) require routine lubrication after every 25 hours of running time. Refer to PTO U-Joint Lubrication (Tractor) in this section for lubricating U-

Joint on tractor.

Dipstick (Oil Fill)

Dipstick (Oil Fill) Location

(View from Above Right Side of Tractor)

4. Reinstall the drain plug. Make sure it is tightened to 13 lb

·ft (17.6 N·m).

NOTE: The ball bearings on the PTO drive shaft are sealed and do not require periodic maintenance.

Maintenance Instructions LUBRICATION

Ident Lubrication No. No. Location Type Places

1 Deck Caster Wheel Fork Pivot Grease 2 2 Blade Spindle GreaseΔ 2 3 Pivot Assembly, Tilt-Up Deck Grease 4 4 Deck Support Arm Socket Grease 2 5 Universal Joint Shaft Assembly Grease** 1 6 Tee Gearbox, Deck Oil* 1 7 Blade Drive Gearbox Oil* 2 8 FSC Lever Pivot Grease 1

9 Steering Lever Pivot Grease 2 10 Deck-to-PTO Coupling Grease 1 (Grease Spline Slide Area) 11 Universal Joint Tube Assembly Grease** 1 12 Deck Support Arm Pivot Grease 2 13 Hydro Idler Pivot Grease 1 14 PTO Clutch Lever Pivot Grease 1 15 Body Latch Pivot Oil 1 16 Transaxle Oil Reservoir Oil/20W-50 1 17 Clutch Actuator Push Rod Grease 1 18 PTO Belt Tightener Pivot Grease 1

Ident Lubrication No. No. Location Type Places

19 Brake Band Pivot Pins (Clevis) Oil 2 20 Catcher Hinge Point Oil 2 21 Throttle Control Cable Ends Oil 2 22 Engine Dipstick / Oil Fill Oil*** 1 23 Engine Idler Pivot Grease 1 24 Parking Brake Clevis Oil 2 25 Parking Brake Lever Grease 1 26 Throttle Control Pivot Oil 1

* Gearboxes are permanently lubricated and sealed re-

quiring no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Mower Deck Gearbox Lubrication in this section.

** Grease every twenty-ve (25) hours. Refer to PTO U-

Joint Lubrication (Tractor) in this section for Lubricat-

ing U-Joint on tractor.

*** Refer to Engine Oil located on page 50.

Belt Driven Decks Only

NOTE: DS42 Belt Drive and DC36R Tilt-Up Decks are shown for

reference. For other Deck Lubrication Points, Refer to

Deck and Carrier Frame Illustrated Parts Manual.

3 4

5 3

Lubrication Points for Optional Belt Driven Decks (DS42 Belt Drive Shown)

Maintenance Instructions LUBRICATION

3 4

9 10

11 12

21 & 26

15 16

2020

Chassis and Deck Lubrication Points (DC36R Shown)

Maintenance Instructions LUBRICATION

Mower Deck Gearbox Lubrication

NOTE: These instructions apply to all mower decks with gear-driven blades. Refer to Mower Deck Spindle Lubrication in this section for the DS42

Belt Drive deck with belt-driven blades.

On gear driven decks, the mower deck gearboxes (tee gearbox and blade drive gearboxes) are connected as a unitized as sembly, and oil ows freely between them. The gear boxes are permanently lubricated (oil lled) and sealed requiring no scheduled lubrication. Howev er, the gearbox oil seals should be checked every 25 hours for indication of an oil leak; particularly the lower seals on the blade drive gearboxes should be inspected, since they operate in a dirty en vironment. If an oil leak is noted, replace the oil seal and relubricate the gearbox assembly as follows:

1. Remove gearbox cover (footrest). Deck orientation should be the normal operating position.

Tee

Gearbox

NOTE: In case the gearboxes are completely drained of oil, approximately 5 . oz. (15 cl) of oil per gearbox is required to rell the gear drive assembly.

NOTE: Since the gearboxes are connected as a unit by connector tubes, it is necessary to add oil slowly. Allow a few minutes after adding oil for the oil to ow throughout the assembly and the oil level to stabilize before reassembly.

IMPORTANT: DO NOT overll the deck gearboxes. The gearbox assembly is not vented, and overlling with oil will cause excessive pressure and result in oil leaks.

5. Check condition of the cover gasket and replace if worn or damaged. Reinstall gearbox cover plates; torque screws to 24 lb·in. (3 N·m).

Mower Deck Spindle Lubrication

For the DS42 Belt Drive mower deck, lubricate each deck spindle grease tting every 25 hours. Use SAE general purpose lithium or molybdenum base grease for grease ttings.

PTO U-Joint Lubrication (Tractor)

Blade Drive

Gearboxes

Mower Deck Gearboxes

(Shown with Gearbox Cover

Removed for Clarity)

2. Clean the area around the individual gearbox cover plates to prevent contaminants from entering the gearcase.

3. Remove the screws securing the cover plates on the blade drive gearboxes.

4. Check the level of lubricant in the gearboxes. If the lubricant is low, add SAE E.P. (Extreme Pressure) 80W-90 (API GL-5) gear lube until the oil level is up to (submerges) the horizontal shaft in the gearbox (shaft parallel to cover plate).

DANGER

Never perform the following steps with the engine running.

1. Remove deck from tractor.

2. Position the PTO U-joint grease tting pointing

up, as shown in Grease Fitting Location pho- to. To rotate the PTO, the blade brake will need to be released by pushing the blade clutch lever slightly forward while simultaneously turning the PTO.

Maintenance Instructions LUBRICATION

Check Transaxle Fluid Level

● The transaxle oil lubrication is SAE 20W-50 (API Service Class SL or higher) engine oil.

● Inspect both transaxle cases after every 25 hours of operation for visible leaks.

● The uid level of the transaxles can be checked visually by looking at the uid level in the expansion reservoir. When the transaxles are cold, the uid level in the expansion reservoir should be between 1/4 in. and 1/2 in. (0.64 cm and 1.27 cm).

Reservoir Cap

Hose to

Transaxles

Hot

Level

PTO Tube On

Tractor Assembly

RH Transaxle

(Reference)

Grease Fitting

Grease Fitting Location

(View From Above Transaxles)

3. Use a grease gun to add grease until it seeps out of the seals. Wipe away any excess grease.

DO NOT over grease.

Cold Level

Expansion Reservoir Location

Using Grease Gun On U-Joint

Maintenance Instructions LUBRICATION

Transaxle Oil and Filter Change

Change the transaxle oil after the initial break-in period of 75-100 hours. Thereafter, change oil ev- ery 400 hours of operation as follows:

1. Thoroughly clean the exterior of the transaxle housing before servicing. Remove expansion reservoir cap to allow venting. Remove the blower receiver cone by removing the four (4) 1/4-20 x 3/4 hex bolts for access to transaxle oil drain plugs. Using a 1/4 in. hex wrench, remove the plug on the lower inside of each transaxle allowing the oil to drain.

Elbow Screw Locking

Nut Down

2. Remove the oil lter guard, remove and replace the oil lter using an oil lter wrench. Tighten lter by turning lter 3/4 to 1 turn after gasket contacts the lter base surface. Reinstall the oil lter guard. (Refer to Transaxle Oil Drain Plug, Filter, and Guard Location illustration.)

Oil Filter

Guard

Transaxle Oil Drain Plug, Filter, and

Guard Location

3. Reinstall drain plugs.

Receiver

Cone

Oil Drain

Plug

Reinstall Transaxle Elbows

7. Reinstall the elbows. When the elbow begins to be snug, position the elbow as it was when removed and tighten the locknut. Reinstall reservoir hoses to elbows.

8. Fill reservoir to 1/4-1/2 in. (6-13 mm) with 20W-50 (API Service Class SL or higher) oil.

9. Start and drive the unit for 1-2 minutes.

10. If the transaxles sound noisy or have poor steering response, there may be air trapped in the transaxles. Follow purge instructions below.

11. If oil needs to be added refer back to steps 4-10.

12. To purge air from transaxle, raise tractor and block with tires o󰀨 the ground. With engine running, slowly move Forward Speed Control forward and backward 5 to 6 times. Turn o󰀨 engine and check oil level and add if needed. Repeat procedure until transaxles operate at normal noise levels and move smoothly in forward and reverse.

4. Remove the oil reservoir hose attached to the elbow on top of the transaxles. Remove the elbows to access the oil ll opening.

5. Fill the transaxles with 20W-50 (API Service Class SL or higher) oil through the opening (where the elbows were). Fill up to the opening.

6. Before reinstalling the elbows, screw the locking nut on the elbows down until they are snug (the o-ring on the elbow will be to the bottom of the o-ring groove).

Maintenance Instructions CLEANING

CLEANING

CAUTION

If a pressure washer is used on the exposed working parts, avoid water on the electrical parts and the engine cooling system.

Engine Air Cleaner System

Kohler Quad-Clean™ Air Cleaner

An engine mounted Kohler Quad-Clean™ air cleaner provides the air ltering function. The paper lter element slides over an outlet tube on the air cleaner base with radial sealing action, reducing the possibility of dust leaks due to improper lter installation. Intake design and internal ba󰀪ing in the cover provide dust separation and automatic precleaning action. In addition to the paper lter, an oiled foam precleaner sleeve surrounds the lter and provides extra ltering action.

IMPORTANT: Use only Kohler air lter and precleaner for replacement (Kohler Filter P/N 17-083-

21-S and Precleaner P/N 17-083-15-S). Aftermarket lters may not seal properly or lter e󰀩ciently.

Cover

Latch

Cover

Latch

Precleaner and

Base

Filter Element

Air Cleaner Components

(Shown with Cover Being Removed)

IMPORTANT: The Kohler air cleaner uses a dry

paper-type air lter element. NEVER apply oil to the paper element.

8600-12

Unleaded Gasoline Only

10% Ethanol maximum

IMPORTANT

15% MTBE maximum

87 Octane or higher (R+M)/2 (AKI)

90 Octane min (RON)

5082-5

Engine

Engine Air Cleaner System Components

Cover

Precleaner Filter

Paper Filter

Element

Air Cleaner

Base

Maintenance Instructions CLEANING

Precleaner

Clean or replace the air cleaner precleaner after every 25 hours of service; more often in extremely

dusty or dirty conditions. Service the precleaner as follows:

1. Release the two (2) air cleaner cover latches

and remove the foam precleaner by sliding it o󰀨 the paper element.

2. Wash the precleaner in warm water with deter-

gent (replace the precleaner if worn or damaged). Rinse and allow to air dry (DO NOT wring dry).

3. Lightly oil precleaner with new engine oil.

Squeeze foam to distribute oil and remove ex-

cess oil.

4. Reinstall precleaner over paper element and re-

install the cover with the proper orientation (refer to Proper Orientation of Air Cleaner Cover photo). Make sure both latches are secure on the two (2) base receptacles.

IMPORTANT: When latching the cover onto the air cleaner base, make sure the cover is drawn down tight on the base by rst engaging the latch hooks into the receptacles on the air cleaner base, and then latching down tight.

Paper Air Filter

Check/clean the air lter after every 100 hours of service and replace the lter every 400 hours.

Service the air lter as follows:

1. Remove air cleaner cover and precleaner as

noted above. Wash or blow o󰀨 the interior of the cover.

2. Carefully slide paper lter o󰀨 of the outlet tube

on the base, making sure that dust does not fall down into the opening.

3. Clean the lter by gently tapping on a at,

hard surface.

Precleaner

Radial Sealing

Surface

Paper

Filter Element

Air Cleaner

Base

Outlet Tube

Air Filter Element Replacement

NOTE: Use care when cleaning the lter ele-

ment. The lter element and/or seal surface may be damaged by tapping too hard or hitting on an uneven surface or sharp edge. Washing the paper element in water or cleaning solution is not recommended. Do not try to clean the lter element with compressed air. Do not oil the paper element. Remember, replacing a lter is less expensive than replacing a dusted engine.

4. Inspect the paper element by using a bright light inside the lter to check for damage. Check the element very carefully for pin holes or other damage that will allow dirt to leak through the paper media. Replace the lter if dirty or if damage is noted.

5. Check the condition and resilience of the radial sealing surface (inside of the open end) of the lter. Replace the lter if any cracks, tears, or other damage to the sealing surface are noted.

6. Carefully clean the air cleaner base and both the outside and inside surfaces of the outlet tube that the air lter slides onto.

IMPORTANT: Any dust left on the inside of the outlet tube will go into the engine and cause premature wear.

7. Slide the precleaner over the paper lter and reinstall on the air cleaner base. Make sure the lter is seated tight and straight on the base plate for proper sealing.

8. Reinstall the air cleaner cover [see cover installation instructions, step (4), under precleaner servicing instructions above].

Maintenance Instructions CLEANING

Cylinder Head Cooling Fins

It is essential for performance and longevity of the air-cooled engine to keep the cylinder head cooling ns clean and free of obstruction. After every 8 hours of operation, check the performance of the cooling system by starting the engine, holding a hand adjacent to the cylinder head cooling air duct, and feeling the cooling airow. If there is little or no airow, clean the cooling ns as follows:

Front of Tractor

Proper Orientation of Air Cleaner Cover

Engine Cooling System

Cooling Air Intake Screen

To prevent engine overheating and possible engine damage, clean grass clippings, cha󰀨, and dirt from the rotating engine cooling air intake screen after every 8 hours of operation. In certain mowing conditions (dry grass, leaves, tree “cotton”, etc.), it may be nec essary to check and clean the screen several times each day to prevent engine overheat-

ing.

CAUTION

Operating the engine with a blocked air intake screen, dirty or plugged cooling

ns, and/or cooling shrouds removed will

cause engine damage from overheating.

DANGER

Make sure to keep hands clear of exhaust

pipe, mu󰀪er, and moving parts when checking airow.

Cooling Air

Duct

Check for

Airow

Check Cooling System Airow

1. Inspect accessible cooling ns and clean with

compressed air or backpack blower as needed. If the buildup is excessive, refer to step 2.

Rotating Engine

Cooling Air

Intake Screen

Keep Rotating Engine Cooling

Air Intake Screen Clean

2. If the debris cannot be removed with com-

pressed air, it will be necessary to remove the engine from the chassis and remove the engine shroud for thorough cleaning. See your authorized Kohler dealer for this service.

CAUTION

DO NOT use a pressure washer to clean the cooling system on an air-cooled engine, mud may form under the cooling shroud on the cylinder head and cooling fan.

Maintenance Instructions CLEANING

Tilt-Up Handle

Tilt-Up Hook and

Cooling

Fins

Tilt-Up

Latch

Latch Connected

Deck Lock

Lever

Inspect and Clean Cylinder Head

Cooling Fins

IMPORTANT: Yearly, it is good maintenance prac-

tice to remove the engine cooling shroud and clean the cylinder head cooling ns and cooling fan thoroughly to prevent overheating and extend engine life. Make sure cooling shroud is reinstalled properly. This procedure will require removing the engine from the chassis.

Grass Buildup in Mower Deck Housing

DANGER

Before raising or removing the mower deck for cleaning, stop the engine, remove the ignition key, and disconnect the spark plug wire.

1. Raise the deck lock lever handle on each side

of the carrier frame and pull out to release car- rier frame for tilting action.

2. Using the carrier frame lift handle, raise deck to

the TILT-UP position and insert the deck hook into the tilt-up latch on the tractor body.

Tilt-Up

Hook

Deck Secured in TILT-UP Position

DANGER

Do not operate the mower with deck in tiltup position. Do not move the tractor with the deck in the tilt-up position.

3. Clean grass buildup underneath the deck using

a pressure washer (and scraper if required).

NOTE: If the buildup is severe, it may be easier to clean the deck by removing the deck assembly from the tractor and standing the deck assembly on its “nose”.

NOTE: While some degree of material buildup in the mower deck housing can be tolerated, a point is nally reached where cutting quality

deteriorates and clogging begins to occur

because of too much buildup on the ba󰀪ing and

housing.

4. Lower the deck to the normal operating position

and re-engage the deck lock levers.

CAUTION

Do not operate machine with deck tilt-up pivot joint unlocked.

Maintenance Instructions CLEANING

GHS Blower

Normally, the GHS blower operates with no maintenance or cleaning. However, when mowing grass that is dirty and damp (especially certain springtime mow ing conditions), a deposit of dirt may accumulate inside the blower housing, causing wear and binding of the blower wheel. When operating in these conditions, inspect the blower frequently

for dirt buildup.

NOTE: A visual clue of binding of the blower wheel

is the blower blade tips are polished from rubbing on dirt.

When a dirt deposit is found, use a high pressure washer or water spray to clean the inside of the housing as follows:

DANGER

Before attempting to wash the blower, stop the engine, remove the ignition key, and disconnect the spark plug wires. Wear goggles or face shield.

PTO Saddle

Bracket (P/N 5275-6)

1. Disconnect blower from driveline by removing the following:

(1) Mower Deck

(2) Engine Drive Belt*

(3) PTO Drive Belt*

* Refer to REPLACING/REPAIRING the Drive

Belts in this section.

2. Secure the PTO U-joint Tube Assembly in the horizontal position by installing the PTO Saddle Bracket (P/N 5275-6) as shown. This conguration is set up to allow free movement of the blow-

er wheel.

NOTE: The saddle bracket is ordered as a ser-

vice part.

IMPORTANT: With the driveline disconnected,

the blower wheel must spin freely. Any binding or dragging of the wheel is an indication of dirt buildup. This buildup must be cleaned to avoid abrasive wear of the blower blades, excessive power loss and eventual loss of blower performance (clogging).

PTO Tube in Horizontal

Position

Install Saddle Bracket

3. Use a pressure washer or water spray, and direct the spray inside the blower housing against the blower blades. Water pressure will cause the blower wheel to begin to spin and the combination of spinning action and water will e󰀨ectively wash the inside of the housing. Spray may be directed against the blower blades vertically and horizontally to cause rotation in both directions for thorough washing action. Wash

blower until the blower wheel spins freely in

both directions.

4. Reconnect the GHS Blower Driveline by revers-

ing the removal procedure, and remove the saddle bracket before installing the mower deck.

GHS Exhaust Screen

Refer to Cleaning the GHS Exhaust Screen in Op- erating Instructions.

Maintenance Instructions CLEANING

Transaxle Housing

Keeping the housing on the transaxles clean and free of obstruction is essential to avoid overheat- ing the transaxle uid and shortening transaxle life. The housing should be checked every 100 hours and cleaned if necessary.

To clean the housing, use compressed air and/or a pressure washer. Pay close attention to any oily dirt build up on the transaxle housings. This may be the result of an oil leak. If an oil leak is noticed, contact your local Walker dealer.

Cooling

Fins

Transaxle Housing and Cooling Fins

IMPORTANT: In case an oil leak develops on the

input shaft, the cooling fan blowing dusty air and oil on the transaxle will quickly cover the housing and pack the cooling ns with oily dirt. If this condition occurs, contact your dealer immediately to avoid overheating and dam aging the transaxle.

An additional procedure in maintaining transaxle cooling is to inspect the cooling fans. Replace the fan(s) if blades are missing or damaged.

Cooling

Fans

Transaxle Cooling Fans

Maintenance Instructions CHECKING/SERVICING

CHECKING/SERVICING

CAUTION

DANGER

Important Battery Service, Installation, and

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 wire.

Security of Air Filtration Components

NOTE: The following inspection is only an exter nal inspection and should be done without “disturbing” the ltration components.

On a daily basis, visually inspect the external condition of the air cleaner system. Check the Kohler Quad-Clean™ air cleaner cover for damage. Make sure the cover is in place and the cover latches are secure—do not run the engine without the air cleaner cover in place and secure.

Battery

NOTE: For initial battery service during setup, re fer to Battery Service in Assembly Instructions.

IMPORTANT: Make sure battery is securely mount-

ed in the frame. A loose battery may cause damage to the case resulting in acid leakage and severe dam age to the machine. A hazard may be created by damage to critical working parts and safety systems.

Charging Tips for Electronic Fuel Injection Engines:

● Do not allow the battery cables to touch opposing terminals. When connecting battery cables attach the positive (+) cable to positive (+) battery terminal

rst, 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 uctua-

tions 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.

Electrolyte Level

The battery electrolyte level should be checked after every 25 hours of operation. To check electro-

lyte level:

1. Remove battery cell ller caps.

2. Check the electrolyte level. If the level is below the bottom of the vent well, ll with distilled water to the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above the plates].

3. Replace ller caps.

IMPORTANT: DO NOT overll the battery. Electrolyte will overow through the vented caps onto parts of the machine and WILL result in severe corrosion.

Maintenance Instructions CHECKING/SERVICING

Cleaning the Terminals

If battery terminals are corroded, remove battery from the mower. Using a wire brush, remove corrosion with a solution of one part baking soda and four parts water. Rinse with clean water. Coat the terminals with petroleum jelly or terminal protector spray to retard further corrosion.

Charging the Battery

DANGER

BATTERIES PRODUCE EXPLOSIVE GASES

● Charge the battery in a well-ventilated area, so that gases produced while charg ing can dissipate.

● Keep sparks, ames, and smoking ma- terials away from the battery at all times.

● Make sure the battery cap vents are open (check manifold vent on each cap).

● Make sure the battery charger is un- plugged before connecting or disconnecting cables to the battery.

Check the battery charge by measuring the specic gravity of electrolyte; if specic gravity is less than

1.225, the battery will need to be charged as follows:

IMPORTANT: Always disconnect the negative (-) battery terminal before charging. Failure to do so can result 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 specic gravity is at least 1.250. Total charging time should not exceed one (1) hour.

Tire Pressure

Inate tires to pressures shown below:

Deck Caster Wheel* = 20 PSI (137 kPa) Drive = 15 PSI (103 kPa) Tailwheel = 20 PSI (137 kPa) * If equipped with optional pneumatic tires

Wheel Nut Torque

Check the eight (8) nuts that mount the drive tires. Every 100 hours they should be torqued to 75 to 85

·ft (102 to 115 N·m).

Sharpen Mower Blades

Check mower blade(s) for straightness, sharpness, condition of the cutting edge, and balance every 10 hours of operation (or more often when

mowing abrasive type grass or operating on sandy soils). Replace blades if worn, bent, cracked, or

otherwise damaged (refer to REPLACING/RE- PAIRING the Mower Blades in this section). Use

the following procedure to check and sharpen blades:

NOTE: Keep blades sharp—cutting with dull blades not only yields a poor mowing job but slows the cutting speed of the mower and causes extra wear on the engine and blade drive by pulling hard.

1. Stop the engine, remove ignition key, and dis-

connect the spark plug wire before raising the mower deck to service blades.

2. Raise the deck and secure it in the TILT-UP position. Refer to CLEANING of Grass Build- up in Mower Deck Housing in this section for deck raising instructions.

DANGER

NEVER operate cutter blades with the deck in the raised position.

2. After charging the battery, use distilled water to

adjust the electrolyte level to the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above the plates].

NOTE: PTO shaft must be disconnected before checking blades for straightness.

3. Check the blades for straightness by marking the blade tip position inside the deck housing, and then rotating the opposite end of the blade to the same position and comparing. If the difference in blade tip track is more than 1/8 in.

(3 mm), the blade is bent and should be replaced.

Maintenance Instructions CHECKING/SERVICING

WARNING

DO NOT try to straighten a blade that is bent. NEVER weld a broken or cracked blade. ALWAYS replace with a new blade to assure safety.

Blade Balancer

4. If the blade cutting edge is dull or nicked, it

should be sharpened. Remove blades for sharpening by grasping the end of the blade using a rag or a thick, padded glove, while loosening and removing the nut, lock washer, and at washer that mounts the blade.

5. Grind cutting edge at the same bevel as the original. Sharpen only the top of the cutting edge to maintain sharpness.

NOTE: Blades can be sharpened with an electric blade sharpener, conventional electric grinder, or a hand le.

CAUTION

ALWAYS wear eye protection and gloves when sharpening a blade.

Sharpen at

Original 30° Angle

30°

Do Not Grind or

Sharpen on Underside

Mower Blade Prole for Sharpening

6. Check blade balance by positioning the blade horizontally on a blade balancer or use a nail or shaft through the center hole. If either end of the blade rotates downward, grind (remove) metal on that end until the blade will balance. The blade is properly balanced when neither end drops. Balance of a blade is generally maintained by removing an equal amount of material from each end of the blade when

sharpening.

Intersection

Wear Area

Wing

Tip

7. Mount the blade with wing tips pointing up into

Drive Belts

Raise the body and inspect the condition of the three (3) drive belts after every 25 hours of opera- tion—engine, PTO drive, and ground drive. If the belts show signs of cracking or deteriorating, the belts should be replaced. Refer to REPLACING/

REPAIRING the Drive Belts in this section.

Mower Deck Gearbox Oil Seals

The mower deck gearbox seals should be inspected

every 25 hours for evidence of oil leaking; particu- larly the lower oil seal on the blade drive gearbox. This seal is protected by the trash guard on the

blade hub and seal protector plate on the housing, but is still vulnerable to seal damage due to operating in an adverse environment. The mower blade must be removed for inspection of the seal, so it is recommended to inspect the gearbox seals when

blades are removed for sharpening. If an oil leak

is noted, the seal should be replaced and the gearbox assembly relubricated. Refer to LUBRICATION

for Mower Deck Gearbox Lubrication in this section.

Blade Balanced on Magnetic

Wall-Mounted Balancer

the housing. For gear driven decks reinstall the blade, washer, lock washer, and nut. Tight-

en the nut to 60 lb·ft (81 N·m). For belt driven decks reinstall the spacer (if applicable), blade, washer, and bolt. Tighten the bolt to 70 lb·ft (95 N·m).

NOTE: When reinstalling blades on GHS mod-

els, remember, the blades counter-rotate and the LH and RH blades must not be switched. Check for proper blade rotation before installing blades on the deck. Refer to Blade Rotation illustrations shown in Clogging Checklist in Operating Instructions for correct blade rotation.

Maintenance Instructions CHECKING/SERVICING

Spark Plug

Every year, remove the spark plug, inspect, clean,

and reset the gap (or replace with a new plug). Clean spark plug with a wire brush. If the electrodes are burned short or pitted, replace the plug (refer to Specications for the proper type of replacement plug). Check the spark plug gap with a wire-type feeler gauge and set the gap between 0.028 and

0.032 in. (0.7 and 0.8 mm). Reinstall and tighten to

17 lb·ft (23 N·m).

Ignition

The Kohler engine is equipped with an electronic ignition. No breaker points, maintenance, or adjustments are necessary with this system. Contact an authorized Kohler engine dealer in case of ignition

failure.

Ignition Wire

Good preventative maintenance calls for complete replacement of the spark plug wire every two (2) years.

Fuel Lines and Clamps

Transmission Control Setting

On a yearly interval or when an out-of-adjustment condition is observed, check the transmission control for proper function as follows:

Neutral-Park

With the mower parked on level ground, start and run the engine, rst at idle and then normal operating speeds. With the FSC in the NEUTRAL-PARK position, there should be no movement of either drive tire. If the tire(s) are “creeping” forward or reverse, refer to ADJUSTMENTS for the Neutral

Function Adjustment - Step 3 in this section.

Straight Ground Tracking

Check for straight ground track by driving on a smooth, level surface with hands o󰀨 the steering levers. Set the FSC at di󰀨erent speeds and observe if the mower moves in a straight line (use a cement joint or other line on the ground for reference). If the machine is drifting to the right or left, refer to

ADJUSTMENTS for Straight Tracking Adjustment - Step 5 in this section.

NOTE: The engine fuel injection system is pressurized and should be serviced by a Walker dealer or authorized Kohler engine service outlet.

Every year, inspect the fuel supply line from the tank to engine for deterioration or damage. Also, inspect the fuel line clamps for tightness. Good preventive maintenance calls for complete replace-

ment of fuel lines and clamps every two (2) years.

Engine Valve Clearance

Check and adjust the Kohler engine valve clearance every 400 hours. Refer to the Kohler Engine Owner’s Manual and Workshop Manual for specications and procedure to check the valve clearance. For engine servicing, contact an authorized Kohler engine dealer or a trained engine technician.

IMPORTANT: Always use the proper engine service manual when working on the engine. Improper engine maintenance or adjustments will adversely affect engine operation, performance, and durability and may VOID the warranty.

Blade Brake Action

WARNING

It is important to check and maintain blade brake action for safe operation of the machine.

Check the function of the cutter blade brake and blower brake by engaging the blade clutch (PTO), operating the engine at full throttle, then disengaging the clutch and measuring how quickly the blades stop. Watch the rotation of the blade drive shaft and blower pulley as a visual indication that movement has stopped. If the brake is working properly, all

rotation will stop ve (5) seconds after disengagement of the clutch. If the brake system mal-

functions - blades do not stop in ve (5) seconds adjust or repair the brake before operating the mower. Refer to ADJUSTMENTS for Blade Brake Band Adjustment in this section, or contact your authorized Walker dealer for this service.

Maintenance Instructions CHECKING/SERVICING

PTO U-Joints

The PTO U-joints should be inspected yearly for looseness and wear. If either is noticed, the respective shaft or tube should be replaced. A worn U-joint can cause vibration and extensive damage to the PTO and the whole machine.

Safety Switch System

WARNING

It is important to check and maintain the safety switch system for safe operation of the machine.

There are four (4) safety interlock switches on the tractor; Seat Switch, FSC Neutral-Park Switch, PTO Switch, and Parking Brake Switch.

If any of the following conditions occur during starting or operating, a safety interlock switch may be malfunctioning. Contact your Walker dealer for troubleshooting and/or replacement.

● With or without an operator in the seat, the

engine starts with the Forward Speed Control (FSC) and/or the PTO engaged, or the parking brake disengaged.

Forward Speed Control Friction Lock

The FSC friction lock is designed to hold the selected forward travel speed when the steering le-

vers are moved and yet the friction is not too heavy to make moving the FSC control di󰀩cult (too much friction). The procedure for checking the FSC friction lock is as follows:

1. With the engine o󰀨, place the FSC in the full

FORWARD position and pull both steering levers back; the FSC lever should not move. If the FSC lever moves back when the steering levers are pulled back, the friction needs to be

increased.

2. With the steering levers held back, move the

FSC lever back from the FORWARD position. With a proper amount of friction adjusted, the FSC lever should move back with a slight amount of resistance (friction). If the FSC lever movement is “sti󰀨”, the friction needs to be

decreased.

If the FSC friction lock needs to be adjusted, refer to

ADJUSTMENTS for Step 7 - Forward Speed Con- trol Friction Adjustment in this section.

● With an operator in the seat and the parking

brake engaged, the engine starts but dies soon after the parking brake is disengaged and the Forward Speed Control (FSC) or PTO is engaged.

● Without an operator in the seat, the engine starts and continues to run with the Forward Speed Control (FSC) and/or PTO engaged, or the parking brake disengaged.

● With an operator in the seat, the Forward Speed Control (FSC) and PTO disengaged, the parking brake engaged, but the starter will not engage.

Maintenance Instructions REPLACING/REPAIRING

REPLACING/REPAIRING

DANGER

To prevent accidental starting of the engine when replacing parts or repairing the machine, remove the key from the ignition switch and disconnect the spark plug wire.

IMPORTANT: ALWAYS use genuine factory re-

placement parts. Substitute parts CAN result in product malfunction and possible injury to the operator and/or others.

Ground Drive Belt

Drive Belts

There are three (3) individual belts on the machine:

● Engine Belt

● PTO Drive Belt

● Ground Drive Belt

The belts may be removed and replaced using the

procedures described on the following pages.

Engine Belt

PTO Drive Belt

Belt Locations

Maintenance Instructions REPLACING/REPAIRING

Engine Belt

1. To remove the engine belt:

a. Relax belt by pushing the spring-loaded

idler pulley.

Idler Pulley

Push Idler Pulley

to Relax Belt

Engine Idler

Arm

Tension Spring

2. To replace the engine belt:

b. Roll the belt o󰀨 the pulleys and remove the

belt, then slowly release the idler.

Compound

Pulley

Engine Belt

Engine Pulley

Engine Belt (Disengaged)

a. Reverse the removal procedure to replace

the engine belt.

Engine Belt

Idler Pulley

Engine Idler

Arm

Tension Spring

Engine Belt (Engaged)

Compound

Pulley

Engine Pulley

Maintenance Instructions REPLACING/REPAIRING

PTO Drive Belt

b. Remove the two (2) wing nuts and belt

1. To remove the PTO drive belt:

guide on the PTO Drive Pulley.

a. Remove the engine belt, as described in

previous section.

Compound

Pulley

PTO Drive

Pulley

Wing Nuts

PTO Drive Belt (Disengaged)

2. To replace the PTO belt:

a. Install the PTO drive belt by reversing the

removal procedure. Replace engine belt.

c. With the PTO clutch disengaged, roll the

belt o󰀨 the idler pulley and remove the belt.

PTO

Drive Belt

Clutch Idler

Pulley

PTO/Clutch/Brake

Actuator Arm

Belt

Guide

NOTE: If installing a new PTO belt is di󰀩cult, the blade brake band adjustment nut might need to be loosened. If so, follow the Blade Brake Band Ad- justment procedure in this section.

Compound

Pulley

PTO Drive

Pulley

PTO

Drive Belt

Clutch Idler

Pulley

PTO/Clutch/Brake

Actuator Arm

Belt Guide

PTO Drive Belt (Engaged)

Maintenance Instructions REPLACING/REPAIRING

Ground Drive Belt

1. To remove the ground drive belt:

a. Raise the spring-loaded idler pulley to relax

belt.

Drive

Pulley

LH Transaxle

Drive Pulley

b. Slide belt o󰀨 pulleys, then slowly release

the idler pulley.

Raise Idler Pulley to Relax Belt

Ground Drive

Belt

Belt Tightener

Idler Pulley

RH Transaxle

Drive Pulley

Ground Drive Belt Assembly (Disengaged)

2. Reverse the procedure to install the ground drive belt.

Ground Drive

Belt

LH Transaxle

Drive Pulley

Idler Pulley

Drive

Pulley

RH Transaxle

Drive Pulley

Ground Drive Belt Assembly (Engaged)

Maintenance Instructions REPLACING/REPAIRING

Fuel Filter

DANGER

Gasoline is extremely ammable and can

be highly explosive. To minimize danger:

● Before servicing the fuel system:

1) Disconnect the spark plug leads.

2) Disconnect the negative (-) battery cable from battery.

● Use only an approved fuel container for gasoline.

● DO NOT allow open ames or sparks near the machine while performing maintenance or refueling; DO NOT smoke while working with fuel.

● Wipe up spilled gasoline immediately and completely.

Model S14i is equipped with an in-line fuel lter between the fuel tank and the fuel pump (low pressure fuel pump). Visually inspect the lter periodically, and replace the lter yearly or when contamination is suspected or found in the fuel.

IMPORTANT: Replace the fuel lter only in a clean area where the fuel line and connections will not be contaminated by dust and dirt.

1. Close the fuel shut-o󰀨 valve.

2. Expand and slide clamps on either side of the lter away from lter and pull fuel lines o󰀨 lter.

3. Replace lter, making sure that the arrow on the lter is aligned with the fuel ow through the lter.

4. Verify that the fuel lines and clamps are securely attached, and that no fuel leaks are present.

5. Open the fuel shut-o󰀨 valve.

Blade Overload Shear Bolts

NOTE: Blade shear bolts are not used on belt driv-

en decks.

On gear driven decks, each cutting blade is keyed to the blade hub by two (2) shear bolts (10-24 x 5/8 in. stainless steel machine screws). These bolts are designed to shear and protect the blade drive gearbox from damage if the blade encounters a shock load.

Fuel Filter and Fuel Shut-O󰀨 Valve Location

Fuel

Filter

Fuel Shut-O󰀨

Valve

Cutting Blade

Shear Bolts

Cutting Blade Shear Bolts

NOTE: Tightening the 5/8-18 blade mounting nut to 60 lb·ft (81 N·m) is also important for proper shock load protection. It is important to not over- tighten the mounting nut since this defeats (over-

rides) the function of the shear bolts.

Maintenance Instructions REPLACING/REPAIRING

If these bolts shear, remove the blade and install new bolts. Refer to CHECKING/SERVICING in this section for Sharpen Mower Blades which describes the blade removal and installation procedure.

After reinstalling the blade, check blade timing (on gear driven decks) by moving blades through one (1) complete revolution. Make sure blade tips pass clear of each other. If timing is incorrect, contact your Walker dealer.

Mower Blades

Mower blades are removed and remounted as described in Sharpen Mower Blades instructions (refer to CHECKING/SERVICING in this section). Dur- ing the course of sharpening and inspecting mower blades, if there are any of the following conditions

of wear or damage, blades should be replaced

for reasons of safety and performance of the machine:

● An excessive amount of the at section of the

blade has been ground away (removed) when the blade is sharpened. Replace the blade

when less than a 3/4 in. (19 mm) at section

remains at the blade tip.

● Check the blades for straightness by marking

blade tip position inside the deck housing and then rotating the opposite end of the blade to the same position and comparing. If the di󰀨erence in blade tip track is more than 1/8 in. (3 mm), the blade is bent and should be replaced.

● Inspect the blade surface, especially in formed

areas, for cracks. Replace the blade if any cracks are found.

WARNING

DO NOT try to straighten a blade that is bent. NEVER weld a broken or cracked blade. ALWAYS replace with a new blade to assure safety.

Reinstall the blades following procedure from

Sharpen Mower Blades instructions in CHECK- ING/SERVICING in this section. If blades are re- placed, always use Walker original equipment blades to ensure safety and optimum performance. The quality and performance of replacement

blades o󰀨ered by other manufacturers cannot be guaranteed, they could be dangerous.

● Examine ends of the blade carefully, especially the intersection where the at section of the blade turns up to form the “wing tip” (refer to

CHECKING/SERVICING for Mower Blade Prole for Sharpening illustration in Sharpen Mower Blades instructions). Since sand and

abrasive material can wear metal away in this area, the blade should be replaced when met-

al thickness has worn to 1/16 in. (1.6 mm) or less.

DANGER

When blades are operated over sandy soil, and if blades are allowed to wear, a “slot” may be worn into the wing tip of blade. Eventually a piece of the blade

may break o󰀨 creating a serious potential

for injury or damage.

CAUTION

ALWAYS use genuine factory replacement parts. Substitute parts CAN result in product malfunction and possible injury to the operator.

Maintenance Instructions ADJUSTMENTS

ADJUSTMENTS

Transmission Control

IMPORTANT: The proper adjustment of the

transmission control stops is essential for e󰀩cient operation and life of the transaxle. These stops are properly adjusted at the factory and should only require read justment if the transaxle or related control linkage is removed or changed.

NOTE: It would not be unusual for a new machine, after the initial 5 or 10 hours of operation, to begin to not travel straight (this is due to the break-in of the transmissions). To ne tune tracking, refer to Step 5 - Straight Tracking Adjustment in this section.

Step 1 - Steering Lever Position Adjustment

NOTE: For proper operation, the steering levers

should be adjusted to sit evenly using the following procedure.

1. Examine the steering levers to make sure they

are parallel front to back in relation to one another. If they are not equal, adjust accordingly. (The handles may or may not be even at this point.)

NOTE: The LH steering lever is non-adjust able. This procedure will require adjustment of the RH lever to make it even with the LH lever.

Levers should sit

parallel to each other

2. Adjust the position of the RH lever by turning the stop bolt in the Speed Control Actuator in or out. Turning the stop bolt in will make the RH lever move back, and turning it out will make it move forward. Tighten the locknut.

Stop

Bolt

Stop Bolt Location

Step 2 - Steering Handles Adjustment

1. An adjustment range of approximately 3 in. (76 mm) is available on the steering handles - the han dles can be adjusted forward or aft depending on the arm length of the operator. The handles can be adjusted by loosening the locknut at the pivot point and the locknut holding the handle in position in the adjustment slide. Adjust han dles into most comfortable position and tighten both locknuts.

Lever Alignment

Adjustment

Slide

Steering Handle Adjustment

Locknut

(Position)

Locknut

(Pivot Point)

Maintenance Instructions ADJUSTMENTS

Step 3 - Neutral Function Adjustment

1. With the Forward Speed Control (FSC) in NEUTRAL-PARK, the lever should be straight up.

Adjust the angle of the FSC lever by removing the ball joint on the lever end of the FSC Rod, loosen the jam nut, adjust the rod length. Once it is the correct length, tighten the jam nut and reinstall the ball joint.

NOTE: For tractors with a serial number of

157328 or lower, adjust by loosening the jam nuts on the FSC Rod and turn the rod to attain the straight up position. Tighten the jam nuts.

3. Adjust the tracking adjustment nuts at the front of both control rods so that 2 or 3 threads are visible, then loosen the jam nuts on the ball joints at the back of the control rods.

Control Arm

Control Rods

Tracking Adjustment Nuts

Transmission Control Rod and Arm Location

(Shown with Parts Removed for Clarity)

Ball Joint

Maximum Speed

Adjustment Set Screw

Correct FSC Lever NEUTRAL-PARK Position

Adjust Length of

Rod to Position

FSC Lever

Remove Lower

Ball Joint to

Adjust

FSC Lever Position Adjustment

Jam Nut

Control Rod

FWD

REV

Locating/Limit

Stud

Transmission

Control Arm

Tracking Adjustment Nut

(Adjusts Length of Control Rod)

Tracking Adjustment Components

2. Securely block the tractor up so the drive tires are o󰀨 the ground.

Maintenance Instructions ADJUSTMENTS

Step 4 - Full Forward Speed Adjustment

WARNING

1. Move the FSC to the full FORWARD speed

The following adjustments are made with the engine running. Keep all body parts and tools away from rotating and hot components, and secure all loose clothing.

position.

2. Raise the body. The maximum speed tracking adjustment set screw in both transmission control arms should not be contacting the limit stud on the transaxle. If they are, back the set screws out until they do not touch.

4. With the body lowered and the FSC in NEU- TRAL-PARK, start the engine. With the engine at normal operating speed, check for movement of the drive wheels.

5. Using a wrench on one tracking adjustment nut, rotate the control rod counterclockwise just until the wheel on that side begins to move forward. Then, counting the turns required, rotate the control rod clockwise just until the wheel stops and then begins to move in re- verse. Rotate the control rod back counterclockwise half the number of turns required to make the wheel go from moving forward to reverse. The transmission is now centered in the neutral window. Tighten the jam nut on the ball joint and repeat the same procedure on the other transmission.

6. Turn o󰀨 the engine, and then lower the drive tires onto the ground.

NOTE: It may be necessary to tighten the FSC

friction adjustment if the transmissions are moved out of neutral when the body is raised. Refer to Step 7 - Forward Speed Control Friction Adjustment later in this section for location of the FSC friction adjustment nut.

Maximum

Speed Tracking

Adjustment

Transmission

Control Arm

Maximum Speed Tracking Adjustment

(Shown with Parts Removed for Clarity)

T-Handle

Hex Wrench

Maintenance Instructions ADJUSTMENTS

Step 5 - Straight Tracking Adjustment

1. Sit in the seat, start the engine, set throttle at full speed, and with the FSC in the NEUTRAL- PARK po sition check for movement of either drive wheel (if either wheel moves backward or forward, re fer to Step 3 - Neutral Function Adjustment and readjust).

2. Check for straight ground tracking on a level surface (with hands o󰀨 the steering levers). Set the FSC at several di󰀨erent speeds and observe if the machine moves in a straight line (use cement joint or other line on ground for reference).

3. If tracking is not straight, shorten the control rod on the faster side by turning the tracking adjustment nut clockwise. If straight tracking and neutral are both achieved, proceed to the next step. If straight tracking and neutral cannot both be achieved, turn the tracking adjustment nut on the faster side counterclockwise until neutral is restored.

4. Lengthen the control rod on the slower side by turning the tracking adjustment nut counterclockwise until straight tracking and neutral are both achieved.

Step 6 - FSC Neutral Switch Adjustment

1. Place the FSC lever in the NEUTRAL-PARK

position. Raise the body and adjust the switch adjustment bolt up until it just makes contact with the FSC switch plunger, and then turn the switch adjustment bolt up an additional two (2) turns and tighten the jam nut.

NOTE: It may be necessary to tighten the FSC

friction adjustment if the transmissions are moved out of neutral when the body is raised. Refer to Step 7 - Forward Speed Control Fric- tion Adjustment later in this section for location of the FSC friction adjustment nut.

FSC Switch

Switch

Adjustment Bolt

IMPORTANT: After tracking adjustments are complete, conrm that there is at least one (1) thread visible on both control rods past the tracking adjustment nuts.

5. If the machine is tracking straight throughout the speed range except at maximum speed, use the following adjustment procedure:

a. With the engine o󰀨, place the FSC in full

FORWARD. On the faster transmission, loosen the jam nut and turn the maximum speed tracking adjustment set screw in until it just contacts the limit stud, and then turn it in an additional 1/8 turn (turning the set screw in slows the drive wheel).

b. Recheck maximum speed tracking, and if

necessary continue adjusting the set screw in small increments until straight travel is achieved.

c. Tighten the jam nut.

FSC Neutral Switch Location

NOTE: Adjust the bolt

downward for quicker activation (Switch Open).

FSC Switch

Actuator Arm

Switch Closed

in Neutral

Switch Adjustment

Bolt

FSC Friction Nut

Jam Nut

Front of Mower

FSC Neutral Switch Adjustment

(Side View Through Chassis)

Maintenance Instructions ADJUSTMENTS

Step 7 - Forward Speed Control Friction Adjustment

CAUTION

Before testing the FSC Neutral Switch, disconnect the spark plug wire from the engine and engage the parking brake to prevent accidental starting and inadvertent machine movement.

2. Check operation of the FSC Neutral Switch by placing the FSC lever in the full FORWARD po- sition. While holding the ignition switch in the START position, slowly move the FSC lever back towards the NEUTRAL-PARK position and stop when the starter motor engages. Note the position of the FSC lever where it passes through the slot in the body. The FSC lever should be within 1/8 in. (3 mm) of the NEU- TRAL-PARK position. If this distance is greater than 1/8 in. (3 mm), turn the adjustment bolt down slightly and recheck switch operation. When nished adjusting, tighten the jam nut and reconnect the spark plug wire.

FSC Full

Forward Position

Pull Steering Levers

Back To Check

Friction Lock

FSC Friction Adjustment Test

(Checking Friction Lock)

1. Place the FSC lever in the full FORWARD

position, and pull both steering levers fully back; the FSC lever should not move. If the FSC lever moves back the friction needs to be in-

creased.

2. With the steering levers held back, move the

FSC lever back from the FORWARD position. With a proper amount of friction adjusted, the FSC le ver should move back with a slight amount of re sistance (friction). If the FSC lever movement is “sti󰀨”, the friction needs to be

decreased.

3. The FSC friction is increased or decreased by

tightening or loosening the friction adjustment nut. Loosen or tighten the nut and check

the control function until the conditions of both steps 1 and 2 (above) are met.

FSC Friction

Adjustment Nut

FSC Friction Adjustment Nut

Maintenance Instructions ADJUSTMENTS

Blade Clutch (PTO)

Clutch Engagement/Belt Tension

The clutch engagement and PTO belt tension are adjusted using the clutch actuator rod. After installing a new PTO belt, after 10 hours and every 100 hours thereafter, check and adjust for the clutch spring assembly bolt head clearance dimension as shown in the PTO Clutch Engaged illustration. If the clutch actuator rod or clutch spring assembly have been disassembled, rst reset them to their factory preset lengths (see PTO Clutch Disen- gaged illustration) and then proceed with adjustment as follows.

Bolt Head Clearance

1/4 in. to 5/16 in.

(6.5 mm to 8 mm)

Clutch Idler

Arm

With the clutch engaged, adjust the length of the clutch actuator rod to achieve a clutch spring assembly bolt head clearance of 1/4 in. to 5/16 in. (6.5 mm to 8 mm). To adjust the clutch actuator rod length, loosen both ball joint jam nuts (one ball joint will have LH threads) and shorten the rod to increase the clutch spring assembly bolt head clearance, or lengthen the rod to decrease the bolt head clearance. If adjustments are needed more frequently than every 100 hours to maintain dimensions, it may suggest problems with pulley wear or belt misalignment.

Blade Clutch

Engaged

Blade Clutch

Idler Pulley

Actuator Arm

Clutch Spring Assembly

(Spring Compressed)

Clutch

Safety

Switch

Clutch

Actuator Rod

Front of Mower

PTO Clutch Engaged

Maintenance Instructions ADJUSTMENTS

11 in.*

(280 mm)

6 in.*

(152.5 mm)

Blade Brake Band Adjustment

The blade brake is designed to stop the blades within ve (5) seconds after clutch disengagement. Ev- ery 100 hours of operation verify correct performance of the blade brake by following the procedure

in CHECKING/SERVICING the Blade Brake Ac- tion in this section.

Knuckle

Joint

PTO Clutch Disengaged

WARNING

It is important to check and maintain blade brake action for safe operation of the machine.

Clutch Spring Assembly (Spring Uncompressed)

2-1/8 in.*

(54 mm)

*NOTE: Factory preset dimensions. Reset to these dimensions prior to adjustment if components have been disassembled.

Adjust the working travel of the clutch idler pulley by adjusting the brake band nut:

1. With the clutch disengaged, adjust the blade brake band nut to achieve a 1/4 in. to 3/8 in. (6.5 mm to 9.5 mm) gap between the PTO pulley and clutch idler pulley as shown in the Blade

Brake Band Adjustment illustration.

NOTE: As the blade brake band/drum wears,

idler pulley travel will increase and it will be necessary to adjust the brake band nut to maintain the correct 1/4 in. to 3/8 in. (6.5 mm to 9.5 mm) gap. If the gap is greater than this in the disengaged position, the PTO belt may not declutch adequately. Every 100 hours of operation check the pulley gap and adjust if necessary.

Maintenance Instructions ADJUSTMENTS

2. After adjustments are complete, verify blade brake performance by following the procedure

in CHECKING/SERVICING the Blade Brake Action in this section. If the blades do not stop

within ve (5) seconds, check the following:

a. Make sure clutch and brake linkages are

working freely (no binding).

b. Check the brake band and PTO pulley

brake drum for wear. Replace any components that are excessively worn.

c. Verify that the PTO belt is declutching com-

pletely from the pulleys.

Tilt-Up Deck Adjustable Stop

When the carrier frame hinge joint is properly adjusted, the deck lock levers should move in and out of the engaged and disengaged positions freely. All four (4) hitch pins used for height adjustment should sit ush on the washers above the deck pin bushing. On a level surface, if any pin is sticking up (likely the front pins), tighten the opposite side or loosen the same side to lower the pin. Adjustments are made by loosening the jam nut and tightening or loosening the set screws on the Deck Mount Pivot Brackets. Retighten the jam nut when the adjustment is complete.

Jam Nut

Set Screw

Chassis Mount

(Ref)

Pulley Gap 1/4" to 3/8"

Blade Brake

Band Adjustment Nut

Blade Brake Band Adjustment

(Clutch Disengaged)

Tilt-Up Deck Adjustable Stop

Clutch Idler

Pulley

Blade Brake

Band

PTO

Pulley

Maintenance Instructions ADJUSTMENTS

GHS “Full” Signal Horn Adjustment

The vertical position of the Grass-Pak® switch is critical to make sure the catcher box does not overll causing the delivery chute to clog. The vertical position can be adjusted by moving the aluminum shaft and vane on the Grass-Pak® switch.

1. Position the discharge chute so that it is pointing straight back.

a. Turn the ignition switch ON (RUN) and

move the blade clutch to the ENGAGED position (engine not running).

b. Open the catcher back door and monitor

the spout position (as it oscillates) and move the blade clutch to the DISENGAGED position and turn the ignition switch to the OFF position.

DANGER

PINCH POINT - SPRING LOADED DOOR

When lowering the door on the GHS catcher, BE VERY CAREFUL to keep

hands, ngers, etc. out of the hinging

mechanism and away from the door frame as the door closes. The springs that hold the door closed during operation are very powerful, and the door can slam shut with considerable force.

WARNING

DO NOT test the Grass-Pak® switch with the engine running. Projectiles CAN be thrown out of the grass delivery spout and CAN cause serious injury to bystanders or property damage.

Adjusting the Grass-Pak

(Side View of Catcher Box)

3. If adjustment is required, loosen front adjustment nut then move aluminum shaft and vane to the recommended measurement. Adjustments should be done in very small increments checking the measurement each time until the recommended measurement is achieved.

NOTE: It will not be possible to adjust the switch to give a signal at the precise instant the catcher is full for a wide variety of mowing conditions. For example, wet heavy grass will ll the catcher di󰀨erently than dry u󰀨y grass, causing the signal to come on a little sooner or later than usual. Primarily, the switch should be adjusted to give the “full” signal with a little advance warning before overlling and clogging of the grass delivery chute begins (regardless of mowing conditions).

Exhaust

Screen

4 to 4-1/2 in.

(10 to 11.5 cm)

Adjustment Nut

Switch

2. Measure from the exhaust screen (top of catcher) to the top of the Grass-Pak® switch actuator vane, refer to Adjusting the Grass-Pak® Switch illustration. The proper measurement should be between 4 and 4-1/2 inches (10 and

11.5 cm).

LIMITED WARRANTY

FOR

WALKER MODEL S14i

RIDER MOWER

1. WHAT THIS WARRANTY COVERS, AND FOR HOW LONG:

Walker Manufacturing company will, at its option, repair or replace, without charge, any part covered by this warranty which is found to be defective in material and/or workmanship within one (1) year* after date of sale to the original retail purchaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days. At Walker’s request, customer will make the defective part available for inspection by Walker and/or return the defective part to Walker, transportation charges prepaid. All parts and components of the Walker Mower are covered by this warranty except the following components which are warranted separately by their respective manufacturers:

Kohler Engine Battery

The available warranties covering these items are furnished with each mower. Walker does not assume any warranty obligation, liability or modication for these items, which are covered exclusively by the stated warranty of the respective manufacturers noted above.

* Extended warranties are o󰀨ered for the following powertrain components:

A two (2) year or 2000 hour (whichever comes rst) warranty is o󰀨ered for Hydro-Gear ZT3100 Hydrostatic transaxle;

•

covers full cost of replacement up to 1000 hours of use, and after 1000 hours warranty coverage is prorated against 2000 hours.

2. WHAT THIS WARRANTY DOES NOT COVER:

A. This warranty does not cover defects caused by depreciation or damage caused by normal wear, accidents, improper

maintenance, improper use or abuse of the product, alterations, or failure to follow the instructions contained in the Operator’s Manual for operation and maintenance.

B. The customer shall pay any charges for making service calls and/or for transporting the mower to and from the place

where the inspection and/or warranty work is performed.

3. HOW TO OBTAIN SERVICE UNDER THIS WARRANTY:

Warranty service can be arranged by contacting the dealer where you purchased the mower or by contacting Walker Manufacturing Company, 5925 East Harmony Road, Ft. Collins, CO 80528. Proof of the date of purchase may be required to verify warranty coverage.

4. WARRANTY LIMITATION:

A. THERE IS NO OTHER EXPRESS WARRANTY. ANY WARRANTY THAT MAY BE IMPLIED FROM THIS PURCHASE

INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY LIMITED TO THE DURATION OF THIS WARRANTY AND TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIED WARRANTIES ARE EXCLUDED. Some states do not allow limitations on how long an implied warranty lasts, so the

above limitations may not apply to you.

B. WALKER WILL NOT BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES AND/OR

EXPENSES IN CONNECTION WITH THE PURCHASE OR USE OF THE MOWER. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation(s) or exclusion(s) may not apply to you.

C. Only the warranty expressed in this limited warranty shall apply and no dealer, distributor, or individual is authorized to

amend, modify, or extend this warranty in any way. Accordingly, additional statements such as dealer advertising or presentations, whether oral or written, do not constitute warranties by Walker, and should not be relied upon.

D. This warranty gives you specic legal rights, and you may also have other rights which vary from state to state.

WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614

Walker S14i Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual