Walker Rider Lawnmowers | MS | Owner`s manual | Walker Rider Lawnmowers MS Owner`s manual

OWNER’S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
Model MS (13 HP)
™
Please Read and Save These Instructions
For Safety, Read All Safety and Operation
Instructions Prior to Operating Machine
Effective Date: 01-15-05
P/N 5000-16
Foreword
Thank you. . .for purchasing a Walker mower. Every effort has been made to provide you with the
most reliable mower on the market, and we are sure you will be among our many satisfied customers. If for any reason this product does not perform to your expectations, please contact us at (970)
221-5614. Every customer is important to us. Your satisfaction is our goal.
Please. . .read this manual thoroughly! This manual is to be used in conjunction with the engine
manufacturer’s manual for the specific engine on the mower model you have purchased. Before you
operate your new mower, please read this entire manual. Some of the information is crucial for proper operation and maintenance of this mower - it will help protect your investment and ensure that the
mower performs to your satisfaction. Some of the 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 call our service department, at (970) 221-5614,
for clarification before operating or servicing this mower.
This manual covers Model MS with the Kawasaki FE400 13 HP gasoline engine.
All shields and guards must be in place for the proper and safe operation of this machine.
Where they are shown removed in this manual, it is for illustration purposes only. Do not operate
this machine unless all shields and guards are in place.
Specifications given are based on the latest information available at the time this manual was
produced.
Walker Mfg. Co. is continually striving to improve the design and performance of its products. We
reserve the right to make changes in specifications 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
Operating Instructions_____________
HIGHLIGHTED INFORMATION _____________ 1
GLOSSARY ____________________________ 1
IDENTIFYING NUMBER LOCATIONS________ 1
ENGINE SERIAL NUMBER LOCATION ______ 2
SERVICING OF ENGINE
AND DRIVETRAIN COMPONENTS__________ 2
CONTROL IDENTIFICATION,
LOCATION, AND FUNCTION _____________
Ignition Switch _______________________
Engine Choke________________________
Engine Throttle ______________________
Forward Speed Control (FSC) __________
Steering Levers ______________________
Blade Clutch (PTO) ___________________
Parking Brake _______________________
Transmission Lockout Levers __________
Hourmeter __________________________
Light Switch (For Optional Lights)_______
STARTING THE ENGINE_________________
ADJUSTING GROUND SPEED
AND STEERING________________________
ENGAGING THE MOWER ________________
STOPPING THE MACHINE _______________
ADJUSTING CUTTING HEIGHT ___________
TRANSMISSION LOCKOUT ______________
RECOMMENDATIONS FOR MOWING ______
RECOMMENDATIONS FOR TILT-UP
DECK OPERATION/TRANSPORT _________
GRASS HANDLING SYSTEM (GHS) _______
General Information __________________
Clogging Checklist ___________________
Using the Tilt-Up Deck ________________
Using the GHS Catcher ________________
Powerfil® __________________________
“Full” Signal Horn ___________________
Cleaning the GHS Exhaust Screen ______
Dumping the Catcher _________________
Tailgate Dumping ___________________
Using the Dump Bag _________________
Specifications ________________________ 3
ENGINE________________________________ 3
ELECTRICAL SYSTEM ___________________ 3
TRANSMISSION_________________________ 3
BLADE DRIVE __________________________ 4
TIRE SIZE ______________________________ 4
TIRE PRESSURE ________________________ 4
DIMENSIONS (Tractor and Mower) _________ 4
MOWER DECK __________________________ 5
CURB WEIGHT__________________________ 5
DRIVE BELTS___________________________ 5
GHS SYSTEM___________________________ 6
SEAT__________________________________ 6
FRAME/BODY CONSTRUCTION ___________ 6
Component Identification ___________ 7
Safety Instructions _________________ 10
BEFORE OPERATING ___________________ 10
OPERATING ___________________________ 11
MAINTENANCE ________________________ 12
SAFETY, CONTROL,
AND INSTRUCTION DECALS _____________ 14
Assembly Instructions
_____________ 16
SETUP INSTRUCTIONS _________________ 16
Tire Installation (Tractor)_______________ 16
Battery Service _______________________ 16
Wet Battery Service __________________ 16
Dry Battery Service __________________ 16
Battery Charging ____________________ 17
Battery Installation ___________________ 17
Mower Deck Assembly ________________ 17
Deck Caster Wheels Installation ________ 17
Deck Discharge Chute Installation ______ 18
Deck Discharge Shield Installation ______ 18
PTO Shaft Guard Installation __________ 18
Tilt-Up Roller Wheel Installation ________ 18
Mower Deck Installation on Tractor ______ 19
Deck Installation ____________________ 19
Deck Leveling ______________________ 21
PREOPERATING CHECKLIST ____________ 22
24
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25
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31
31
32
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38
Table of Contents
Maintenance Instructions __________ 40
MAINTENANCE SCHEDULE CHART _______ 40
IMPORTANT TIPS FOR CARE OF THE
KAWASAKI ENGINE ____________________ 41
Fuel System _________________________ 41
Starting _____________________________ 41
Cooling System ______________________ 41
Air Cleaner __________________________ 41
Oil _________________________________ 41
LUBRICATION _________________________ 42
Engine Oil ___________________________ 42
Engine Break-In Oil __________________ 42
Checking Engine Crankcase Oil Level ___ 42
Changing Engine Crankcase Oil/Oil Filter _ 43
Grease Fitting and Oil Point Lubrication __ 43
Mower Deck Gearbox Lubrication _______ 46
Tractor PTO Gearbox Lubrication _______ 46
Gear Axle Lubrication _________________ 47
Hydrostatic Transmission Fluid _________ 47
Checking Hydrostatic
Transmission Fluid Level ______________ 47
CLEANING ____________________________ 48
Engine Air Cleaner System _____________ 48
Donaldson Radialseal™ Air Cleaner _____ 48
Fuel Filter ___________________________ 49
Engine Cooling System ________________ 50
Air Intake Screen ____________________ 50
Cylinder Head Cooling Fins ____________ 50
Grass Buildup in Mower Housing________ 51
GHS Blower _________________________ 52
GHS Exhaust Screen __________________ 52
Hydrostatic Transmission Cooling Fins __ 53
CHECKING/SERVICING _________________ 53
Security of Air Filtration Components ____ 53
Battery______________________________ 53
Electrolyte Level ____________________ 53
Cleaning the Terminals _______________ 54
Charging the Battery _________________ 54
Tire Pressure ________________________ 54
Sharpen Mower Blades ________________ 54
Drive Belts __________________________ 56
Mower Deck Gearbox Oil Seals _________ 56
Spark Plug __________________________ 56
Breaker Points _______________________ 56
Fuel Lines and Clamps ________________ 56
Blade Brake Action ___________________ 56
REPLACING/REPAIRING ________________
Drive Belts __________________________
Engine Belt ________________________
PTO Drive Belt _____________________
Ground Drive Belt ___________________
Blade Overload Shear Bolts ____________
PTO Shear Pin _______________________
Mower Blades _______________________
ADJUSTMENTS ________________________
Steering Levers ______________________
Tilt-Up Deck Adjustable Stop ___________
GHS Signal Horn Adjustment
(When Horn Sounds at Wrong Time) _____
57
57
58
59
60
61
61
62
63
63
63
63
Maintenance and Service
Record Sheet _______________________
65
Operator’s Notes ___________________
66
Warranty___________________________
67
General Information
HIGHLIGHTED INFORMATION
Walker Manufacturing recommends that any service requiring special training or tools be performed
by an authorized Walker Mower Dealer. There are
several general practices to be aware of in the area
of safety. Most accidents associated with the operation or maintenance of a Walker Mower are
caused by disregarding basic safety precautions or
specific warnings. Such accidents, in most cases,
can be prevented by being aware of the dangers
present.
Information of special importance has been highlighted in bold type in this manual. Refer to Safety
Instructions for the meanings of DANGER, WARNING, CAUTION, IMPORTANT, and NOTE.
•
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) mows but does not
collect the mowed material.
•
STEERING LEVERS steer the tractor by controlling the dual hydrostatic transmissions.
•
TRACTOR is the prime mover, including the engine, drive train, operator seat, and controls to
operate the mower.
•
TRANSMISSION LOCKOUT releases the hydrostatic transmissions to permit freewheeling
the tractor.
GLOSSARY
There are many terms that are either unique to this
equipment or that are used as acronyms. The following terms and their definitions will help while
using this manual:
•
DECK is the mowing attachment mounted on
the front of the tractor which includes the carrier
frame, deck housing, blade drive gearboxes,
and cutter blades.
•
FORWARD SPEED CONTROL (FSC) controls
the maximum forward speed of the tractor;
functioning as a cruise control.
•
GRASS HANDLING SYSTEM (GHS) collects
mowed material and deposits it in the catcher.
•
GRASS-PAK SWITCH is mounted on the
grass delivery spout (in the catcher) and activates the “full” signal horn when the grass
catcher is full.
•
•
•
IDENTIFYING NUMBER LOCATIONS
The tractor serial number plate is affixed to the tractor body just below the left rear corner of the seat.
The mower deck serial number plate is affixed
alongside the angle iron framing on the LH side of
the LH mower blade drive. Model and serial numbers are helpful when obtaining replacement parts
and maintenance assistance. For ready reference,
please record these numbers in the space provided.
Tractor Model No. _______________________
Tractor Serial No. _______________________
Deck Serial No.
GROUND DRIVE refers to the dual hydrostatic
transmissions which drive the main wheels.
HYDROSTATIC TRANSMISSION transmits
and controls power from the ground drive belt to
the main drive wheel.
LEFT HAND (LH) refers to the left-hand side of
the tractor when the operator is seated facing
forward in the tractor seat.
_______________________
Engine Model No. _______________________
Engine Serial No. _______________________
Date of Purchase _______________________
Fill In By Purchaser
1
General Information
Serial Number
Tractor Serial Number Location
SERVICING OF ENGINE AND DRIVETRAIN
COMPONENTS
The detailed servicing and repair of the engine,
hydrostatic transmission and gearboxes are not covered in this manual. Only routine maintenance and
general service instructions are provided. For the
service of these components during the limited warranty period, it is important to find a local, authorized
servicing agent of the component manufacturer. Any
unauthorized work done on these components during the warranty period may void the warranty. If
you have any difficulty finding 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
Serial Number
Mower Deck Serial Number Location
ENGINE SERIAL NUMBER LOCATION
The Kawasaki engine model, type, and code numbers are located on the starter side of the engine
shroud. For the mower model covered by this manual, an engine manual is available to cover the
Kawasaki FE400.
Serial Number
Engine Serial Number Location
(view from right side of tractor)
2
Service manuals are available for each of these
components from their respective manufacturers as
follows:
Kawasaki Engine
Kawasaki Engine Division
P.O. Box 888285
Grand Rapids, MI 49588-8285
Hydrostatic
Transmissions
Eaton Corporation
15151 Highway 5
Eden Prairie, MN 55344
Gearboxes (Deck)
Tecumseh Products Co.
900 North Street
Grafton, Wl 53024
Specifications
MODEL
MS
ENGINE
Manufacturer/Model
Kawasaki, FE 400D, 1 Cyl. OHV (Air-Cooled)
Displacement
24.5 cu. in. (401 cc)
HP (@ 3600 RPM)
13.0
Max. RPM (No Load)
4000
Governed RPM
3600
Max. Torque [ft-lb (N⋅ m) @ RPM]
19.5 (26.4) @ 2500
Idle RPM
1300
Spark Plug Type
NGK BPR5ES
Spark Plug Gap
.030 in. (.75 mm)
Crankcase Capacity
1.35 qts (1.3 liters)
Crankcase Lubricant
API SC/SD/SE/SF/SG/SH Grade Oil Only with 10W-30/10W-40 Viscosity
or 40W Above 68° F (20° C) Only
Fuel Tank Capacity
1.7 Gallons (6.4 liters)
Fuel
Automotive Grade Unleaded Gasoline (87 Octane)
Cooling System
Air Cooled
CAUTION: Do not operate this engine continuously at angles exceeding 15° in any direction. Engine
damage could result from insufficient lubrication.
ELECTRICAL SYSTEM
Battery
12 Volt, 230 CCA (Interstate SP-30)
Charging System
Flywheel Alternator
Charging Output
13 Amp DC (Regulated)
System Polarity
Negative Ground
Ignition
Transistorized Electronic Magneto
Starter
12 Volt Electric Key and Solenoid Operated
Interlock Switch
Ignition Lockout by Seat Switch, Transmission Neutral and Blade Clutch
TRANSMISSION
Manufacturer/Model
Dual Hydrostatic, Eaton Model 7, Each Wheel Independently Driven
Steering
Hand Lever Control / Individual Wheel
Forward Speed Control
Precision Friction Lock Lever, Cruise Control, with Neutral-Park Position
Service Brake
Dynamic Braking through Hydrostatic Transmission
Parking Brake
Mechanical Pin Lock in Transmission Gear
Neutral
Transmission Release by Manual Dump Valve
Final Drive
Gear Drive Axle
3
Specifications
MODEL
MS
TRANSMISSION (continued)
Transmission Fluid
Factory Service
Mobil 1 Synthetic Motor Oil (15W-50)
Transmission Fluid Capacity
1 qt (1 liter)
Transmission Cooling
Cooling Fan Mounted on Drive Pulley
Ground Travel Speed
Forward m.p.h. (km/h)
Reverse m.p.h. (km/h)
0-5 (0-8) Infinitely Variable
0-5 (0-8) Infinitely Variable
BLADE DRIVE
PTO Shaft
Sliding Spline Shaft with Two (2) High-Speed U-Joints
Blade Spindle
Each Blade (2) Mounts Direct on Peerless Right Angle
Gearbox with Tee Gearbox in Center Connected to PTO Shaft
(Complete Geared Drive, Peerless Model 1000 Gearboxes)
Blade Drive Clutch and Brake
Manual Belt Tightener Clutch and Scrubber Brake
(Stops Blades within Five (5) Seconds of Disengagement)
Max. Blade Speed
[22 in. (56 cm) Blade] @ 3600
RPM Engine
2900 RPM
[16700 FPM (5090 m/min)]
TIRE SIZE
Deck Caster Wheel
2.80/2.50-4 Pneumatic (4-Ply)
Deck Caster Wheel (Optional)
8.25 x 2.75 (Semi-Pneumatic)
Drive
18 x 6.50-8 (4-Ply)
Drive (Optional Wide Tire)
18 x 8.50-8 (4-Ply)
Rear
13 x 6.50-6 (4-Ply)
TIRE PRESSURE
Deck Caster Wheel
20 PSI (137 kPa)
Drive
15 PSI (103 kPa)
Rear
20 PSI (137 kPa)
DIMENSIONS (Tractor and Mower)
Length
36 in. (91 cm) GHS Model
87 in. (221 cm)
42 in. (107 cm) GHS Model
89 in. (226 cm)
Width
4
36 in. (91 cm) SD Model
(with Deflector)
41-3/4 in. (106 cm)
42 in. (107 cm) SD Model
(with Deflector)
47-3/4 in. (121 cm)
36 in. (91 cm) GHS Model
37 in. (94 cm)
42 in. (107 cm) GHS Model
43 in. (109 cm)
Specifications
MODEL
MS
DIMENSIONS (continued)
Height
SD Model
37-1/2 in. (95 cm)
GHS Model
44-1/2 in. (112 cm)
Wheel Base (Tractor)
42-1/4 in. (107 cm)
Tread Width (Tractor)
Standard Tires
28-1/4 in. (72 cm)
Optional Tires
29-3/4 in. (76 cm)
MOWER DECK
Width of Cut SD/GHS
36 or 42 in. (91 or 107 cm)
Cutting Height
1 to 4 in. (3 to 10 cm)
Height Adjustment
7 Positions - 1/2 in. (1 cm) Increment Hitch Pins Installed in
Multi-Position Deck Support
Blade Size
36 in. (91 cm) SD Model
20 in. (51 cm) Two (2) Clockwise-Rotating Blades with a 4 in.
(10 cm) Center Overlap
36 in. (91 cm) GHS Model
20 in. (51 cm) Two (2) Counter-Rotating Blades with a 4 in.
(10 cm) Center Overlap
42 in. (107 cm) SD Model
22 in. (56 cm) Two (2) Clockwise-Rotating Blades with a 2 in.
(5 cm) Center Overlap
42 in. (107 cm) GHS Model
22 in. (56 cm) Two (2) Counter-Rotating Blades with a 2 in.
(5 cm) Center Overlap
Deck Suspension
Torsion-Flex Frame with Caster Wheels and
Counterweight Springs
CURB WEIGHT (Approximate)
SD Tractor Only
490 lb (224 kg)
GHS Tractor Only
565 lb (256 kg)
SD Tractor and 36 in. SD Deck
635 lb (288 kg)
SD Tractor and 42 in. SD Deck
670 lb (304 kg)
GHS Tractor and 36 in. GHS Deck
715 lb (324 kg)
GHS Tractor and 42 in. GHS Deck
735 lb (340 kg)
DRIVE BELTS
Engine PTO
Walker P/N 5230-2
Gates BX30
Ground Drive
Walker P/N 5232
Gates 6847
PTO Drive
SD Model
Walker P/N 5234-1
Gates 6935
PTO Drive
GHS Drive
Walker P/N 5234-2
Gates 6944
5
Specifications
MODEL
MS
GHS SYSTEM (Optional)
Blower
3 1/2 x 9 x 1/4 in. (9 x 23 x 1 cm) Three-Blade Paddle Wheel
(Driven by Mower Engine)
Blower Brake
Belt Scrubber Brake (Works in Combination with PTO Clutch,
Stops Blower within Five (5) Seconds of PTO Disengagement)
Max. Blower Speed
3600 RPM
Grass Catcher Capacity
63 Gallons (238 liters)/6.7 Bushels
Full Signal
Oscillating Vane Switch Mounted on Grass Delivery Spout Triggers
Horn Signal
Powerfil ®
Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor
Spreads Material throughout Interior of Catcher @ 25 Cycles/Minute
SEAT
Contour-Molded, with Nylon Backed Vinyl Cover and Integral
Foam Cushion
FRAME/BODY CONSTRUCTION
Frame
All Welded Unitized Steel Chassis
Body
14 Gauge Steel
Deck
11 Gauge Steel
GHS Catcher and Chutes
Molded Cross-Linked Polyethylene (UV Stabilized)
NOTE: The manufacturer reserves the right to make changes in specifications shown herein at any time
without notice or obligation.
6
Component Identification
NOTE: Control Identification
shown in Operating
Instructions section.
Grass Handling System
6.7 Bushel Catcher
Catcher Door
Safety Latch
Anti-Scuff
Roller
Tilt-Up Latch
Transmission Control Rod
Adjustment Nut (LH)
Catcher Lift/
Dump Handle
Deck Support Pin
and Height Adjustment
Hitch Pins
Counterweight
Spring and
Protective Cover
Tilt-Up
Deck Handle
Transmission Control Rod
Adjustment Nut (RH)
Deck Lift Handle
(Cutting Height Adjustment)
Tilt-Up
Hook
Deck Support Arms
Footrest
Footrest
Deck
Caster Wheels
Front View and Right Side View
7
Component Identification
Catcher Door
Gas Spring
Protective Cover
Removable Grass
Catcher Screen
(Not Visible)
Catcher Door
Gas Spring
Catcher
Exhaust
Deflector
Catcher Door
Catcher Lift/
Dump Handle
Catcher Door
Handle
Anti-Scuff
Rollers
Left Hand
Drive Wheel
Oil Filter
Fuel Filter
Fuel Shut-off
Valve
Rotating Engine
Screen
Tailwheel Fork
and Wheel
Rear View and Left Side View
8
Component Identification
Air Cleaner
Dust Cup
Air Cleaner
Rubber Bumper
Body Support
Air Restriction
Indicator
Air Intake Hose
Fuel Tank
Carburetor
Fuel Tank
Cap
Fuel Level
Indicator
Starter Solenoid
(Not Shown)
Muffler
GHS Blower
Tractor PTO
Gearbox
RH Transmission
Lockout Lever
RH Hydrostatic
Transmission
Positive (+)
Battery Cable
LH Hydrostatic
Transmission
Negative (-)
Battery Cable
Battery
Neutral Safety
Switch
LH Transmission
Lockout Lever
Top View (Body Raised)
9
Safety Instructions
Pay particular attention to any information labeled
DANGER, WARNING, CAUTION, IMPORTANT,
and NOTE in this manual.
When you see the Safety Alert Symbol (
),
read, understand, and follow the instructions. Failure to comply with safety instructions may result in
personal injury.
The seriousness or degree of importance of each
type of information is defined as follows:
DANGER
An IMMEDIATE hazard that WILL result in
severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.
Walker Manufacturing cannot predict every potentially dangerous situation. Therefore, items labeled
as such in this manual do not cover all conceivable
situations. Any person using procedures, tools, or
control techniques not recommended by Walker
Manufacturing must take full responsibility for safety.
The Walker Rider Lawnmower has been designed
with many safety features to protect the operator
from personal harm or injury. However, it is necessary
for the operator to use safe operating procedures at
all times. Failure to follow safety instructions
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
WARNING
1.
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 Company
5925 East Harmony Road
Fort Collins, CO 80528
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: Identifies mechanical information
demanding special attention, since it deals with the
possibility of damaging a part or parts of the
machine.
NOTE: Identifies information worthy of special
attention.
10
Read and understand the contents of this
Owner’s Manual before starting and operating the machine. Become thoroughly familiar
with all machine controls and how to stop the
machine and disengage the controls quickly.
Replacement Owner’s Manuals are available by
sending the Model and Serial Number to:
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 protective
footwear.
Safety Instructions
6.
7.
8.
9.
Do not wear loose fitting clothing that could get
caught in moving parts. Do not operate this
machine while wearing shorts; always wear
adequate protective clothing, including long
pants. Wearing safety glasses, safety shoes,
and a helmet is advisable and required by some
local ordinances and insurance regulations.
Prolonged exposure to loud noise can cause
impairment or loss of hearing. Operator hearing protection is recommended; particularly
for continuous operation of the GHS Model due
to blower noise level. Wear a suitable hearing
protective device, such as earmuffs or earplugs.
Keep all protective shields and safety devices in place. If a protective shield, safety
device, or decal is damaged, unusable, or missing, repair or replace it before operating the
machine.
Be sure interlock switches are functioning
correctly, so the engine cannot be started unless the Forward Speed Control lever is in the
NEUTRAL-PARK position, and the PTO clutch
is in the DISENGAGED position. Also, the
engine should stop if the operator lifts off the
seat with the PTO clutch in the ENGAGED
position.
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.
OPERATING
1.
Operate the mower only in daylight or in good
artificial light with good visibility of the area being
mowed.
2.
Sit on the seat when starting the engine and
operating the machine. Keep feet on the deck
footrests at all times when the tractor is moving
and/or mower blades are operating.
3.
For a beginning operator, learn to steer
(maneuver) the tractor with a slow engine
speed before attempting any mowing operation. Be aware that, with the front mounted
mower configuration, the back of the tractor
swings to the outside during turns.
4.
Remember, for an emergency stop, the forward
motion of the tractor can always be stopped by
pulling the Forward Speed Control (FSC) into
the NEUTRAL-PARK position.
5.
In case either of the transmission drive belts
break during operation, and if the machine is on
a slope, the machine will freewheel down the
slope. To maintain control, immediately (1)
Release the steering levers and simultaneously
(2) Move the FSC to the NEUTRAL-PARK position. When the machine is stopped or moving
slowly, engage the parking brake.
10. Handle gasoline with care. Gasoline is highly
flammable and its vapors are explosive:
a.
Use an approved fuel container.
b.
Never add fuel to a running engine or hot
engine (allow hot engine to cool several
minutes).
c.
Keep matches, cigarettes, cigars, pipes,
open flames, or sparks away from the fuel
tank and fuel container.
d.
Always fill the fuel tank outdoors using care.
Fill to about one inch from the top of the tank.
Use a funnel or spout to prevent spilling.
e.
Replace the machine fuel cap and container
cap securely and clean up any spilled fuel
before starting the engine.
11. Never attempt to make any adjustments
while the engine is running, except where specifically instructed to do so.
NOTE: This is exactly the same procedure used to
normally stop and park the machine.
6.
Disengage the blade clutch and put the FSC in
the NEUTRAL-PARK position before starting
the engine (an ignition interlock switch normally
prevents starting of the machine if these controls
are in the OPERATING position).
7.
Do not run the engine in a confined area
without adequate ventilation. Exhaust fumes
are hazardous and can be deadly.
8.
Do not carry passengers - maximum seating
capacity is one (1) person.
11
Safety Instructions
9.
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.
10. 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
traffic when crossing or working near roadways.
17. For GHS equipped models, use care when
closing the grass catcher door. Keep fingers
and hands away from the hinge and pinch points
when the door is being closed. Also, keep fingers and hands clear of the door frame. The
door is held closed with springs and the door
may slam shut with considerable force.
18. In case of a clogged or plugged mower deck
or GHS catching system:
11. Disengage the blade drive when transporting
the machine across drives, sidewalks, etc. Never
raise the mower deck while blades are
rotating.
12. The maximum recommended side slope
operating angle is 20 degrees or 33% grade.
When operating the machine on a slope, reduce
speed and use caution to start, stop, and
maneuver. To prevent tipping or loss of control
of the machine, avoid sharp turns or sudden
changes in direction.
Disengage the blade clutch (PTO) and turn
the engine off before leaving the seat.
b.
LOOK to make sure blade drive shaft and
blower drive pulley movement has stopped
before trying to unclog the system.
c.
Disconnect the spark plug wire.
d.
Never place hands under the deck or in the
GHS blower - use a stick or similar tool to remove clogged material.
NOTE: A blade/blower brake should normally
stop drive line rotation within five (5) seconds of
disengaging the PTO clutch.
19. If the cutting blades strike a solid object or the
machine begins to vibrate abnormally, immediately disengage the blade clutch (PTO), stop
the engine, and wait for all moving parts to
stop. To prevent 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 ft-lb (81.3 N⋅ m).
14. For side discharge mower decks, do not operate with the grass deflector chute removed.
Keep the deflector in the lowest possible
position.
20. Do not touch the engine or muffler while the
engine is running or immediately after stopping the engine. These areas may be hot
enough to cause serious burns.
15. For tractors equipped with tilt-up deck, observe
the following recommendations:
21. When leaving the machine unattended, disengage the blade clutch (PTO), stop the
engine, and remove the key.
13. Never adjust cutting height with the engine
running. Before adjusting cutting height or
servicing, disengage the blade clutch (PTO),
stop the engine, and remove the ignition key.
Wait for all movement to stop before getting off
the seat.
a.
b.
Do not move tractor with deck in tilt-up position.
Never tilt body forward with deck in tilt-up
position.
16. For GHS equipped models, 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.
12
a.
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 fire hazards, keep the engine free of
grass, leaves, excessive grease, and dirt.
Safety Instructions
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.
c.
Keep sparks, flames, and smoking materials away from the battery at all times. To
avoid sparks, use care when removing battery cables from posts.
4.
Perform only maintenance instructions described in this manual. Unauthorized maintenance operations or machine modifications
may result in unsafe operating conditions.
d.
Disconnect both battery cables before unplugging any wiring connectors or making
repairs on the electrical system.
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
modifications to the engine may result in
unsafe operating conditions.
7.
Altering the equipment or engine in any manner
which adversely affects its operation, performance, durability, or use will VOID the warranty
and may cause hazardous conditions.
8.
Never attempt to disconnect any safety devices
or defeat the purpose of these safety devices.
9.
Do not change the engine governor settings or
overspeed the engine. The governor has been
factory-set for maximum-safe engine operating
speed.
IMPORTANT: Keep all applicable manuals
immediately accessible to anyone who may
operate or service this machine.
10. Use genuine factory replacement parts. Substitute parts may result in product malfunction
and possible injury to the operator and/or
others.
11. Use care when charging the battery or performing maintenance on the battery and
electrical system:
a.
Make sure the battery charger is unplugged
before connecting or disconnecting cables
to the battery.
b.
Charge the battery in a well-ventilated
space, so gases produced while charging
can dissipate. Make sure the battery vents
in the caps are open.
13
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.
Top Rear of Fuel Tank (5855)
Underside of Body (5861)
Top of Blower Housing (5819)
Top of Fuel Tank (6810)
Rear Bumper (5815)
Gear Axle (5810-1)
Deck Carrier Frame (5865)
Catcher Door Hinge Bar, LH and RH Sides (5868)
Deck Gearbox Cover (5807-3)
14
Hydrostat Oil
Reservoir (5810-2)
Right Side, Below Operator Seat (7809)
On Body Adjacent to Clutch
Control Lever (5806)
Safety Instructions
SAFETY, CONTROL, AND INSTRUCTION DECALS
Safety, Control, and Instruction Decals are installed on the machine;
if any are missing, illegible, or damaged, a replacement should be ordered and installed before
putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual.
Each End of Mower Deck (5808)
SD Deck Discharge Shield (5848)
Fender, LH Side (5802-2)
Fender, RH Side (5802-1)
Adjacent to Blower Discharge Chute
Through Body (5804)
15
Assembly Instructions
SETUP INSTRUCTIONS
Dry Battery Service
Walker Mowers are shipped partially assembled.
After uncrating the tractor and mower deck, initial
setup is required.
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.
NOTE: During the process of unpacking, any damaged or missing parts should be noted and reported
to the delivering carrier immediately (put in writing
within 15 days). The carrier will provide directions for
proceeding with a claim to receive compensation for
damage.
Tire Installation (Tractor)
• Install the drive tires using the eight (8) lug bolts
that are supplied with the owner’s packet of materials.
Drive tires are 18 x 6.50-8, 4-ply; rear tire is 13 x 6.506, 4-ply.
DANGER
• Check and adjust the inflation of the tires. The tire
inflation recommendations are:
Battery electrolyte is a poisonous and corrosive sulfuric acid solution.
Drive = 15 PSI (103 kPa)
Rear = 20 PSI (137 kPa)
• Avoid spillage and contact with skin,
eyes, and clothing - causes severe burns.
• To prevent accidents, wear safety gog-
Battery Service
Tilt mower body up (lift on rear of body) for battery
access. Check the battery for electrolyte level and
charge. The electrolyte level should be at the bottom
of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above
plates]. If the specific gravity is less than 1.225, the
battery needs charging. If 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.
gles and rubber gloves when working with
electrolyte.
• Neutralize acid spills with baking soda
and water solution.
To fill (activate) battery with electrolyte (if battery has
been shipped dry):
1.
IMPORTANT: Battery must be removed from
the mower before filling with electrolyte.
IMPORTANT: Obtain and use only battery
grade sulfuric acid electrolyte with a 1.265 specific gravity to activate the battery. DO NOT use
water or any other liquid during initial activation.
Wet Battery Service
If the battery has been shipped wet, but the electrolyte level is low or the battery needs to be charged
then:
16
1.
Fill each battery cell with drinking water to the
bottom of the vent wells.
2.
Charge battery. Refer to Battery Charging in this
section.
Remove the battery hold down bar, disconnect
the battery cables and lift the battery out of the
tray.
2.
Remove the filler caps and carefully fill each cell
until the electrolyte is just above the plates.
3.
After the battery is filled with electrolyte, replace
the filler caps and charge the battery. Refer to
Battery Charging.
Assembly Instructions
Battery Charging
Battery Clamp
Secured by
Wing Nuts
DANGER
(+) Battery Cable
Connection
BATTERIES PRODUCE EXPLOSIVE GASES
• Charge the battery in a well-ventilated
area, so that gases produced while charging can dissipate.
• Keep sparks, flames, and smoking materials away from the battery at all times.
RH Drive Wheel
• Make sure the battery cap vents are open
Mower Deck Assembly
• Make sure the battery charger is unplug-
Deck Caster Wheels Installation
ged before connecting or disconnecting
cables to the battery.
1.
2.
1.
Charge the battery at 15 amps for 10 minutes.
DO NOT exceed 20 amps maximum recommended charging rate. Charge until specific
gravity is at least 1.250. Total charging time
should not exceed one (1) hour.
Install battery.
Battery Installation
Remove the bolt, nut, axle spacer tube, and
spacer washers from each deck caster wheel
fork.
NOTE: Spacer washers are used only when
the optional semi-pneumatic deck wheels (8.25
x 2.75) are installed.
2.
Fit the axle spacer tube through the wheel hub,
position the spacer washer on each side of the
hub (if used), and fit 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.
4.
Tighten the bolt and nut until the axle spacer tube
bottoms against the inside of the wheel fork (will
not turn) while the wheel and spacer washers (if
used) spin freely without binding.
After charging the battery, adjust the electrolyte
level to the bottom of the vent wells [1/4 to 1/2 in.
(6 to 13 mm) above the plates].
IMPORTANT: DO NOT overfill the battery.
Electrolyte will overflow through the vented caps
onto parts of the machine and WILL result in
severe corrosion.
3.
Battery Installation
after the battery is filled with acid (check
manifold vent on each cap).
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.
Install the battery in the mower as shown in Battery
Installation photo. Connect the positive and negative cables to the proper battery terminal [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.
17
Assembly Instructions
Deck Discharge Shield Installation
(Side Discharge Models Only)
Grease Fitting
Locations
Attach the deck side discharge shield by positioning
the shield hinge lug in front of the deck mount and
fastening with two (2) 3/8-16 x 1-1/4 in. bolts, 3/8-16
ESNA nuts, and 3/8 in. wave spring washers. The
wave washers fit between the two hinging surfaces.
Tighten the nuts until the shield moves freely but is
not loose.
Spacer Washer
Axle Spacer Tube
WARNING
Deck Caster Wheel Installation
NOTE: If semi-pneumatic wheels are installed,
make sure the spacer washers fit over the
spacer tube and are not caught between the fork
and the end of the tube. The washers should
move freely on the axle spacer tube.
5.
Grease the caster wheel bearings and caster
pivot bearings - one grease fitting for each wheel
and each pivot.
DO NOT operate the machine without the
grass deflector chute attached and in the
lowest possible position.
Attach Shield
Deck Discharge Chute Installation
(GHS Rear Discharge Models Only)
Mount the discharge chute hinge on top of the deck
discharge opening using the 1/4-20 x 1/2 in. socket
button head bolt and 1/4-20 ESNA nut. Position the
bolt with the head inside of the chute and the nut on
the outside.
Carrier Frame
Tube Sockets
Attach Guard
Attach
Chute
Discharge Shield Installation
on Side Discharge Deck
PTO Shaft Guard Installation
Position the shaft guard as shown and mount with two
1/4-20 x 1/2 in. bolts.
Tilt-Up Roller Wheel Installation
Nut on Top
Discharge Chute and PTO Shaft Guard
Installation on Rear Discharge Deck
18
Mount the two (2) tilt-up roller wheels on the brackets
on the rear skirt of the deck housing using the
P/N 8490 axle bolt, 3/8 in. wave spring washer and
3/8-16 in. Whiz locknut. Tighten the axle bolt until the
wheel rolls freely, but is not loose.
Assembly Instructions
Grease Deck
Support Arms
Attach Spring
PTO Connection
Arrows on Shaft and Tube
(used to align when sliding together)
Roller Wheels
Mower Deck Installation/PTO Shaft Connection
Tilt-Up Spring and Roller Wheel
Installation on Rear Discharge Deck
Mower Deck Installation on Tractor
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 Installation
photo). Two (2) hitch pins are included in the
owner’s packet of materials.
Deck Installation
1.
Lightly grease each deck support arm (2) on the
tractor. Refer to Mower Deck Installation photo
for location of deck support arm.
2.
Engage the deck carrier frame tube sockets on
the tractor support arms (refer to Discharge
Chute and PTO Shaft Guard Installation photo
for socket location). Slide the deck onto the support arms approximately 3 in. (76 mm).
3.
Align and connect the splined PTO shaft and
socket halves, as shown in Mower Deck Installation photo. The PTO shaft has a pilot end to
ease alignment of shaft; fit shaft end into socket
and rotate shaft until the splines line up as indicated by arrows, then slide together.
4.
If the deck is rear discharge (GHS equipped
model), the rear discharge chute will need to be
aligned and connected to the blower inlet during
the last 2 in. (51 mm) of slide action on the support arms.
NOTE: Raising the mower body may be helpful in fitting and guiding the deck chute into the
blower.
19
Assembly Instructions
Spring Tension Adjustment Nut
Located Under Lower
Spring Hook (not visible)
Counterweight Springs
Clip Onto Body
With Body Tilted Up
Hitch Pins
Lock Deck On
Support Arms
Deck Counterweight Spring Installation
20
6.
Raise mower body (instead of lifting the front of
deck) and clip the counterweight springs to the
receptacle on front of body. Lower the body to
tension the springs. (Refer to Deck Counterweight Spring Installation photo.)
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). Check this weight by lifting on the front of the deck carrier frame. If
required, the spring tension can be adjusted by
tightening or loosening the elastic stop nuts located underneath the lower spring hook. Refer
to Deck Counterweight Spring Installation
photo.
Assembly Instructions
Deck Leveling
1.
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.
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) difference.
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.
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.
WARNING
NOTE: 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 influence the levelness of the deck. Check the tire pressure as a
possible cause of the deck not being level.
The machine must be shut off during this
procedure.
4 in. (102 mm)
Wood Block
Should be 1/8 in. (3 mm)
to 1/4 in. (6 mm) higher
at the rear of the blade
Should not vary more
than 1/8 in. (3 mm)
side-to-side
4 in. (102 mm)
Wood Block
Deck Leveling
21
Assembly Instructions
PREOPERATING CHECKLIST
Before operating the mower for the first 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 Specifications.
FILL FUEL TANK
Raise the mower body and locate the fuel tank on top
of the engine.
Fill the fuel tank using clean, fresh, automotive grade
unleaded gasoline (87 octane rating minimum).
DANGER
Handle gasoline with care. Gasoline is highly flammable and its vapors are explosive.
Use safe refueling procedures:
• DO NOT fill 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 premium, white, or high-test
gasoline. 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 5 hours of continuous operation. Refer
to LUBRICATION for Checking Engine Crankcase
Oil Level in Maintenance Instructions.
CHECK AND SERVICE ENGINE AIR CLEANER SYSTEM
• Check air restriction gauge to make sure there is
no red indication showing.
• Check condition, cleanliness, and security of the
complete air filter element (clean air filter 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 fins should be
inspected and cleaned if any build-up of debris is
noted (remove cylinder head shroud to clean).
Check performance of the cooling system by starting
the engine, holding a hand adjacent to the cylinder
head, and feeling the cooling airflow.
• DO NOT smoke while refueling.
• Avoid spilling fuel; use a funnel or spout.
• DO NOT overfill the fuel tank; fill 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 filler cap before removing. Use a clean fuel storage container and funnel.
22
DANGER
Make sure to keep hands clear of exhaust
pipe, muffler, and moving parts when
checking airflow.
CHECK GEAR AXLE OIL LEVEL (if equipped)
Refer to Gear Axle Lubrication in Maintenance
Instructions.
Assembly Instructions
INSPECT THREE (3) DRIVE BELTS
CAUTION
Engine, PTO, and Hydrostatic Ground Drive.
CHECK HYDROSTATIC TRANSMISSION OIL
LEVEL
Refer to LUBRICATION for Checking Hydrostatic
Transmission Fluid Level in Maintenance Instructions.
CHECK TIRE PRESSURE
Deck Caster Wheel = 20 PSI (137 kPa)
Drive = 15 PSI (103 kPa)
Rear = 20 PSI (137 kPa)
CHECK AND CLEAN GRASS BUILDUP
UNDERNEATH MOWER DECK (and inside
GHS blower, if equipped)
Refer to CLEANING the GHS Blower in Maintenance Instructions for blower cleaning information.
DANGER
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 tiltup 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.
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
The blade mounting nut should be tightened to 60 ftlb (81.3 N⋅m). If blade sharpening is required, refer
to CHECKING/SERVICING for Sharpen Mower
Blades in Maintenance Instructions.
ADJUST MOWER CUTTING HEIGHT, IF REQUIRED
Position the hitch pins in the four deck support pins.
Refer to the “Cutting Height Adjustment” decal on the
deck gearbox cover.
PERFORM ANY ADDITIONAL PROCEDURES
called for on the MAINTENANCE SCHEDULE
CHART in Maintenance Instructions.
CHECK DRIVE WHEEL BOLT TORQUE
The lug bolts mounting the drive tires should be tightened to 75 to 85 ft-lb.
Tilt-Up Latch
Deck Secured in Tilt-Up Position
23
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 efficient operation of the mower.
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,
RUN is the position the key returns to after starting,
and “S” is the START position. When starting 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 RUN position. To stop the engine, rotate
the key counterclockwise to the “O” position.
Engine Choke
The choke control lever (black knob) is located on
the left side of the seat. To start a cold engine, move
the choke control forward to the ON position. After
engine starts, move choke control toward the OFF
position, keeping enough choke to allow the engine
to run smoothly as it warms up. As soon as possible,
move the choke to the OFF position. A warm engine
requires little or no choke for starting.
IMPORTANT: Make sure the choke is in the OFF
position during normal engine operation; running
with the choke in the ON position CAN damage the
engine.
OFF
ON
Steering
Levers
START
Ignition Switch
Key Positions
Parking Brake
Hourmeter
Blade Clutch
(PTO)
Forward Speed
Control (FSC)
Ignition Switch
Operating Controls
24
Operating Instructions
Engine Throttle
Steering Levers
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 backward toward the IDLE position decreases engine
speed.
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 movement of the lever, which causes the drive wheel for
that lever to first slow down, stop, and then reverse
with a full backward lever stroke. The levers are
released to the FORWARD position for “straightahead” ground travel.
Throttle
Choke
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)
Choke and Throttle Location
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 position,
a friction lock holds any forward speed setting from
0 to 5 mph (0 to 8 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.
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 has two positions. Pushing the lever BACKWARD engages the PTO that drives the mower
blades. Pulling the lever FORWARD disengages
the PTO and engages the blade brake.
NOTE: On GHS equipped models, the Powerfil
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.
Parking Brake
The parking brake functions by locking a pin into the
hydrostatic transmission pinion gear teeth. Moving
the lever FORWARD engages the parking brake;
moving 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 axle drive.
NOTE: If pressure on the parking brake pin (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 release the pin.
25
Operating Instructions
Transmission Lockout Levers
The transmission lockout levers disengage the
hydrostatic transmissons. By lifting the lever on top
of the transmission and locking it into place with the
lockout cam, the hydrostatic transmissions are
released to permit freewheeling. By releasing the
cam and lowering the lever, the transmissions are
engaged for normal operation. The transmission
lever in the LOCKOUT position is used to enable
moving the machine without the engine running
(e.g., for service). Refer to TRANSMISSION LOCKOUT in this section for operating instructions.
NOTE: The transmission plunger on the side of the
transmission case (activated by the LOCKOUT
LEVER) must be completely released during operation of the mower, otherwise operation of the
transmission will be erratic.
Lockout
Levers
Procedure
Interval*
Reminder
Oil Change
(Break-In)**
4-6 Hours
C
H
G
Lubricate
and Check
Levels
24-26 Hours
Oil Change
49-51 Hours***
The hourmeter provides maintenance reminders
after certain hours of operation. The hourmeter
screen will start flashing 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.
26
C
H
G
OIL
These intervals reflect the actual time that the
reminder will flash (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.
Lockout Lever Location
The hourmeter, which is located on the left front of
the body, displays operating time accumulated
while the ignition switch is in the ON position.
LUBE
*
Transmission
Plunger
Hourmeter
OIL
Hourmeter
Light Switch (For Optional Lights)
Operates headlights (when installed).
Operating Instructions
The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers
LEFT WHEEL
STEERING LEVER
RIGHT WHEEL
STEERING LEVER
FORWARD SPEED
CONTROL LEVER (FSC)
Full Forward
Ground Speed
Position
Forward Position
(No Control Change)
Intermediate
Ground Speed
Position
Neutral-Park
Position
Reverse Drive
Wheel Motion
Position
Neutral-Park
Position
PARKING
BRAKE
Engaged
Position
Disengaged
Position
Fast
Throttle
Position
Disengaged
Position
Idle
Position
THROTTLE
ON Position
BLADE CLUTCH
(PTO)
Engaged
Position
OFF Position
CHOKE
Operating Controls (Top View from Drivers Point of View)
27
Operating Instructions
STARTING THE ENGINE
IMPORTANT: DO NOT crank the engine continuously for more than 10 seconds at a time. If
the engine does not start, 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.
CAUTION
Before operating the mower, read and understand all Safety Instructions and Operating Instructions.
3.
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,
and the blade clutch and parking brake are
DISENGAGED.
NOTE: Release parking brake to prevent extra
load on the starter if the transmission neutral is
slightly out of adjustment.
CAUTION
A safety interlock switch system PREVENTS CRANKING the engine with either
the Forward Speed Control or the blade
clutch (PTO) out of neutral. If the engine
cranks otherwise, the safety system is not
working and should be repaired or adjusted before operating the mower. DO NOT
disconnect safety switches; they are for
the operator’s protection.
2.
Move the choke lever to the ON position and
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 RUN position as soon as the engine starts.
NOTE: The choke may not be required if the
engine is warm.
28
After the engine starts, gradually move the
choke to the OFF position, keeping enough
choke on to allow the engine to run smoothly as
it warms up. As soon as possible, move the
choke to the OFF position.
IMPORTANT: Make sure the choke is in the
OFF position during normal engine operation;
running with the choke in the ON position CAN
damage the engine.
ADJUSTING GROUND SPEED AND STEERING
CAUTION
Learn to START, STOP, and MANEUVER
the mower in a large, open area.
If the operator has not operated a machine
with LEVER STEERING OR DUAL HYDROSTATIC TRANSMISSIONS, steering and
ground operation should be learned and
practiced until the operator is completely
comfortable handling the machine BEFORE ATTEMPTING TO MOW.
DANGER
Keep feet on footrest at all times when the
machine is moving.
Operating Instructions
WARNING
Beginning Recommendations are:
♦ Learn operation of the mower in an open
area away from buildings, fences, and obstructions. Learn operation on flat ground
BEFORE operating on slopes.
In case either of the transmission drive
belts break during operation, and if the
machine is on a slope, the machine will
freewheel down the slope. To maintain
control, immediately (1) Release the
steering levers and simultaneously (2)
Move the FSC to the NEUTRAL-PARK
position. When the machine is stopped
or moving slowly, engage the parking
brake.
♦ Start maneuvering the mower with SLOW
engine speed and SLOW Forward Speed
Control setting until familiar with all operating 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.
NOTE: This is exactly the same procedure
used to normally stop and park the machine.
NOTE: If the FSC lever will not stay in the
selected position, the friction lock needs to be
adjusted. Contact your Walker Dealer.
2.
♦ 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 lever controlling the inside wheel into reverse
for a smooth “rolling” turn (one wheel rolling forward while the other rolls backward).
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
♦ 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 Control into the NEUTRAL-PARK position.
1.
Move the FSC out of NEUTRAL-PARK position
to the desired forward speed. DO NOT hold forward 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).
Forward Speed Control
(FSC)
Keep Feet on Footrest
when Moving
Correct Operator Hand Position on the Controls
3.
Reverse direction of the mower by pulling both
levers backward.
29
Operating Instructions
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.
4.
5.
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.
Engaged
Position
Stop ground travel by pulling both steering
levers backward to the NEUTRAL-PARK position (tractor 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. Contact your Walker Dealer.
ENGAGING THE MOWER
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 shorten drive belt life. Use only moderate engine
speed when engaging the blade clutch.
2.
Push the blade clutch lever SLOWLY back to
engage the mower blades.
CAUTION
A safety interlock 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 operator raising off 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.
30
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).
Blade Clutch Engaged
Disengaged
Position
Blade Clutch Disengaged
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 disturbed (the blades should be at 90 degrees
to each other). Refer to REPLACING/REPAIRING the Blade Overload Shear Bolts
in Maintenance Instructions if blades are out
of time. Also, make sure the blade retaining nuts are torqued to 60 ft-lb (81.3 N⋅m).
Operating Instructions
STOPPING THE MACHINE
1.
Slow the engine to idle; put the throttle in the
IDLE position.
2.
Pull the steering levers to the NEUTRAL-PARK
position and then move the FSC lever backward
to the NEUTRAL-PARK position.
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 PTO Drive Belt.
WARNING
A brake stops the cutter blades (and blower on GHS equipped models) from freewheeling within five (5) seconds after
disengaging the clutch. If the brake system malfunctions and the blades do not
stop within five (5) seconds, the brake
should be adjusted or repaired before
operating the mower. Contact your Walker
Dealer.
4.
Turn the ignition switch OFF.
ADJUSTING CUTTING HEIGHT
WARNING
The engine must be stopped before adjusting cutting height. Disengage the
blade clutch (PTO), stop the engine, and
remove the ignition key. Wait for all movement to stop before getting off the seat.
Cutting height is adjusted by positioning the four
retainer hitch pins in a series of seven 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 in. (25 mm) [top holes] to
4 in. (102 mm) [bottom holes] in 1/2 in. (13 mm)
increments.
Lift Handle
Deck Support Pin
WARNING
Remove the key from the ignition switch
when leaving the mower unattended. This
will prevent children and inexperienced
operators from starting the engine.
Hitch Pin
Cutting Height Adjustment
5.
Engage the parking brake.
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
ENGAGE 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 fluid is
warm.
31
Operating Instructions
TRANSMISSION LOCKOUT
Lockout Lever
IMPORTANT: DO NOT TOW this mower with the
transmission lockout engaged. Towing can produce
excessive internal pressure and damage the
transmission.
To move the mower with the engine NOT running
(dead battery, maintenance, etc.), the hydrostatic
transmissions are unlocked (released).
Plunger
Released
1.
Raise the body.
2.
Lift the transmission lockout lever on both the
RH and LH transmissions and secure into place
with the locking cam.
3.
The mower will “freewheel” with the levers in the
LOCKOUT position. The levers must be in the
highest position to completely unlock the
transmissions.
Cam in
UNLOCKED
Position
Lockout Lever - Normal Operating Position
RECOMMENDATIONS FOR MOWING
IMPORTANT: Operate the engine at full speed
when mowing, to allow the engine to produce full
horsepower and to increase efficiency of the engine
cooling system.
Lockout Lever
• Keep the mower deck and discharge chute clean.
• Mow with sharp blades. A dull blade tears the
Plunger
Depressed
grass (resulting in poor lawn appearance) and uses
extra power (slowing the mowing speed).
Cam in
LOCKOUT
Position
• 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 off 1/3 or less of
existing grass height.)
• When mowing, operate the engine at or near full
Lockout Lever - Freewheel Position
4.
After moving the mower, release the locking
cam, placing the lever DOWN in the normal
OPERATING position. Make sure the transmission lockout plunger on the side of the transmission case (activated by the lockout lever) is
completely released, otherwise the transmission operation will be erratic.
throttle 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 first pass
and then make a second pass cutting to the desired
height.
• Use a slow setting on the FSC for trimming
operations.
32
Operating Instructions
• 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.
Maximum Recommended
Side Slope - Do Not Operate
on Steep Slopes
• Avoid damage to the grass by slipping and skidding of the drive tires. Use smooth control movements of the steering levers since the hydrostatic
transmissions are “power boosted controls” and
jerking 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).
• When using a side discharge mower deck, the
side discharge shield must not be removed and
must be kept in the lowest possible position to
deflect grass clippings and thrown objects downward. Orient the side discharge away from sidewalks or streets to minimize cleanup of clippings.
When mowing close to obstacles, orient the side discharge away from obstacles to reduce the chance of
damage to property by thrown objects.
Discharge
Shield
Maximum Recommended Side Slope
RECOMMENDATIONS FOR TILT-UP DECK
OPERATION/TRANSPORT
To avoid potential deck and/or tractor damage while
using the tilt-up deck, the following recommendations are offered:
• Do not move the tractor with the deck in the tiltup 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 configuration should only be used when the tractor is
parked.
Side Discharge 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 side slope operating
angle is 20 degrees or 33% grade.
CAUTION
Do not operate this engine continuously at
angles exceeding 15° in any direction.
Engine damage could result from insufficient lubrication.
• The tractor body should never be tilted forward 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.
33
Operating Instructions
GRASS HANDLING SYSTEM (GHS)
GHS Model Only
Exhaust Screen
(Removable)
Catcher Door
Safety Latch
Grass-Pak®
Vane Switch
Exhaust
Deflector
Powerfil ®
Drive Motor
Actuator
Rod
“Full” Signal
Horn
PTO
Clutch
Catcher
Door
Catcher
Door Spring
Shear Pin
PTO and Blade
Gear Drive
Grass Catcher
Shear
Bolt
Dump Handle
Powerfil ®
Delivery Spout
Body Chute
Assembly
Blower
Deck
Discharge Chute
Rear Discharge
Mower Deck
GHS Flow and Components
34
Operating Instructions
General Information
The Grass Handling System (GHS) consists of a rear
discharge mower deck connected to a 9 in. (23 cm)
blower and a rear mounted grass catcher with 6.7
bushel (238 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 airflow is exhausted
out the back of the grass catcher, through a filtering
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 overfilling 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
combination 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 Maintenance 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 adjustment,
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 sufficient
force to cause serious injury to bystanders
or to damage property.
NOTE: When a side discharge or mulching mower
deck is installed on the GHS model, a blower intake
cover should be installed in the blower intake tube.
This cover “unloads” the blower and seals the intake
to effectively eliminate power loss and blower noise
when the blower is not being used.
Blower
Intake Cover
Blower Intake Cover
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 clogging 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.
35
Operating Instructions
Clogging Checklist
• Check the amount of flat section remaining at
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.
blade tip. This is the area that is ground away
(removed) when the blades are sharpened. If too
much of the flat section is removed, the “air lift” performance or “shovel” effect 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) flat section remains at the
blade tip.
• Check that the interior of the deck housing and
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 first develop at the back
of the mower deck in the discharge opening into the
blower chute. Clogging at this point does not indicate a particular problem in this part of the
system, but is a symptom of something restricting the flow 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.
baffling is reasonably clean and free of grass and
dirt buildup. While some degree of material buildup
can be tolerated, a point is finally reached where the
flow 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. Clover 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
• Check to see if the RH and LH mower blades are
working in thick, tall grass, lower deck settings [1 to
2 in. (25 to 51 mm) cutting heights] tend to restrict
airflow from moving into and under the deck. Raising the deck cutting height will significantly increase
airflow and reduce clogging when working in thick,
tall grass.
installed for the correct rotation - install the blades
so the cutting edges move toward each other.
• Check the interior of the chute connecting the
mower deck to the blower for smoothness and freedom from obstruction.
Blades Must Operate at
Right Angles (90 Degrees)
FORWARD
• 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 significant loss of blower
performance.
• Check the blower discharge chute into the grass
catcher for smoothness and freedom from
obstruction.
Rear Discharge
Chute
Mounting Nut
Torque = 60 ft-lb
(81.3 N⋅ m)
Blade Rotation for GHS Mower Deck
(View from Underneath)
36
• 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 airflow.
Operating Instructions
• Check that the openings in the 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.
Remember, anything that restricts airflow or material
flow along the entire path from the mower deck to the
grass catcher can cause clogging.
Using the Tilt-Up Deck
Refer to CLEANING of Grass Buildup in Mower
Housing in Maintenance Instructions.
Using the GHS Catcher
Powerfil 
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 delivery chute), refer to ADJUSTMENTS for GHS Signal
Horn Adjustment in Maintenance Instructions.
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 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 position and moving the
blade clutch to the ENGAGED position. The spout
should oscillate approximately 25 cycles per minute.
Cleaning the GHS Exhaust Screen
NOTE: If the grass spout fails to oscillate, the clutch
switch should be checked for function (the switch
closure is adjustable).
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 airflow restriction.
“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 overfilling 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 fill in around the spout when the
catcher is almost full.
The “full” signal function may be checked by turning
the ignition switch ON, 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 both directions.
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.
Grass Catcher
Screen
Removal
Knobs
WARNING
DO NOT test the Grass-Pak switch with
the engine running. Projectiles may be
thrown out of the grass delivery spout, and
COULD cause serious injury.
Grass Catcher Screen
Removal for Cleaning
37
Operating Instructions
Dumping the Catcher
Using the Dump Bag
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.
1.
Tailgate Dumping
1.
2.
Tilt the catcher back to dump by lifting on the
handle on the front of the catcher.
3.
Lower the catcher smoothly down to the normal
operating position. DO NOT allow the catcher
to drop down.
4.
Close the door by holding the door handle
with the left hand and releasing the safety
latch on the door hinge mechanism with the
right hand. The safety latch is released by
pressing in on the top of the latch. Then, the
door should close smoothly with the assistance of the gas springs.
Safety
Latch
Catcher Door Safety Latch
38
NOTE: To prevent accidental door closure,
a safety latch locks the door open in the
fully opened position while the catcher is being dumped.
2.
Orient the dump bag with one of the handle
straps on the bag opening facing up.
3.
Hook the bottom of the bag over the rear
bumper while lifting on the handle strap.
4.
Tilt the catcher back to dump into the bag by
lifting on the handle on the front of the catcher
with one hand while continuing to hold up on
the bag strap with the other hand. Refer to
photos for positioning the bag and dumping.
5.
Lower the catcher smoothly down to the normal
operating position. DO NOT allow the catcher
to drop down.
Open the back door by lifting on the door handle.
NOTE: To prevent accidental door closure,
a safety latch locks the door open in the
fully opened position while the catcher is being dumped.
Open the back door by lifting on the door handle.
Operating Instructions
Tailgate Door
Handle
Catcher
Dump Handle
Hook Bag
on Bumper
Positioning Dump Bag on Catcher
6.
Close the door by holding the door handle
with the left hand and releasing the safety
latch on the door hinge mechanism with the
right hand. The safety latch is released by
pressing in on the top of the latch. Then, the
door should close smoothly with the assistance of the gas springs.
Dumping Catcher into Dump Bag
39
CAUTION
Maintenance Instructions
Maintenance procedures requiring special training or
tools should be performed by a trained technician.
MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MS
Service Item
25
Hours
50
Hours
100
Hours
Yearly
Every
2Years
Ref.
Page
Check Engine Crankcase Oil Level
x
42
Check/Clean Engine Air Cooling System*
x
50
Clean Grass Buildup Under Deck
x
51
Clean GHS Exhaust Screen*
x
37
Clean GHS Blower*
x
52
Service Mower Blades
x
54
Check Security of Air Filtration Components
x
53
Check Air Filter Restriction Gauge
x
48
Lubricate Grease Fittings and Oil Points*
x
43
Check Battery Electrolyte Level
x
53
Check Hydrostatic Transmission Fluid
x
47
Check Tire Pressure
x
54
Check Drive Belts (Engine, PTO, Ground Drive)
x
56
Check PTO and Deck Gearbox Oil Seals
x
56
Change Engine Crankcase Oil**
x
43
Clean Fuel Filter
x
49
Change Engine Oil Filter
x
43
Clean Air Filter Element*
x
48
Check Gear Axle Oil Level
x
47
Clean Hydrostatic Transmission Cooling Fins
x
53
Clean and Regap Spark Plug
x
56
Clean Engine Cooling Fins
x
50
Check Fuel Lines and Clamps
x
56
Replace Air Filter Element
and Vacuator Valve***
x
48
Service Battery
x
53
Check/Adjust Blade/Brake Action
x
56
Check/Adjust Vertical Postion of
Grass-Pak® Switch
x
63
Change Gear Axle Oil ∆
x
47
Replace Fuel Lines and Clamps
x
56
∗
∗∗
∗∗∗
∆
40
Daily
More often in extremely dusty or dirty conditions
(see notes about air cleaner element under
IMPORTANT TIPS FOR CARE OF KAWASAKI ENGINE)
Change engine oil and filter after first 8 hours
of operation of a new engine (break-in period)
Replace every year or after 6 cleanings
Change every 2 years or 1000 hours
CAUTION
When performing maintenance with the
mower body raised, a safety prop should
be installed from back of body to chassis
frame (fail-safe protection in case of failure of body lift support). For GHS Model,
empty grass catcher before raising body.
Maintenance Instructions
KAWASAKI TIPS
IMPORTANT TIPS FOR CARE OF THE
KAWASAKI ENGINE
Air Cleaner
Fuel System
market elements may not seal in the air cleaner
housing, allowing dirt to enter the engine. Also, aftermarket filters often skimp on the filtration media
and require more frequent cleaning and replacement (see instructions below).
• Fuel must be clean - free from water, dirt, and organic material.
• Clean the fuel filter on a regular basis and when
contamination is suspected or found in the fuel.
• Use only Donaldson air cleaner elements. After-
• Use the air flow restriction gauge to indicate the
need to service the air filter.
Starting
• Start engine with the throttle advanced off 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 temperature, allowing the engine to crank faster and
start easier.
• Allow engine to run at idle for a few seconds before stopping engine to avoid run-on or backfiring.
Cooling System
• Keep engine air intake screen and cylinder head
• DO NOT overservice or frequently “disturb” the
air filter. A dirty air filter actually cleans better than
a new one. Changing and cleaning the filter too often can actually reduce filter efficiency and increase
the opportunity for traces of dust to enter the engine.
Wait until the element really needs servicing as indicated by the loss of engine power.
• When the air filter element is removed or replaced, make sure all dust is cleaned out of the air
cleaner housing and hose. Use a damp cloth and
wipe the interior of the canister and hose clean (a
little dirt left here will be sucked into the engine and
reduce engine life). When the filter is reinstalled,
make sure the element is held tight and straight
in the canister for proper seating and sealing.
fins free of grass clippings, chaff, and dirt. Inspect
intake screen and cooling fins for cleanliness and
damage.
• Periodically check the air intake hose for cuts,
• Check performance of the cooling system by
Oil
starting the engine, holding a hand adjacent to the
cylinder head, and feeling the cooling airflow.
• DO NOT screw filler cap into crankcase when
checking oil level.
DANGER
Make sure to keep hands clear of exhaust
pipe, muffler, and moving parts when
checking airflow.
nicks, etc., and the hose clamps for tightness.
• 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.
• Use only Kawasaki oil filters. Aftermarket filters
• Operate the engine at full speed when mowing.
This will allow the engine to produce full horsepower
and move more cooling air through the engine cooling fins.
may not seal properly and/or have the incorrect
pressure relief valve for proper lubrication.
41
Maintenance Instructions
LUBRICATION
LUBRICATION
IMPORTANT: DO NOT operate engine without
sufficient oil supply in the crankcase. DO NOT
operate with oil level below the LOW (L) mark or
above the FULL (H) mark on the dipstick.
WARNING
DO NOT attempt to lubricate the machine
with the engine running. Disengage the
PTO clutch, shut off the machine, and remove the ignition key.
NOT SCREWED IN
Filler Plug
Proper lubrication is an important maintenance procedure. It reduces wear and makes the machine
quieter and easier to operate.
FULL (H) Mark
Engine Oil
LOW (L) Mark
Engine Break-In Oil
No special break-in oil is required. The engine is serviced with 10W-30, Service Class SG oil from the
factory. The oil should be changed after the initial
engine break-in period of 8 hours. Thereafter,
change oil after every 50 hours of operation.
Dipstick Position
for Checking Oil Level
Checking Engine Crankcase Oil Level
Check the engine crankcase oil level before use and
after each 5 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.
FULL (H)
Mark
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 five (5) minutes after stopping
the engine].
LOW (L)
Mark
IMPORTANT: NEVER check or add oil with the
engine running.
2.
3.
42
Before removing the dipstick, clean the area
around the dipstick opening in the engine block
to keep any dirt or debris out of the engine.
Unscrew and remove the filler plug/dipstick and
wipe off with a clean rag. Insert dipstick into filler
hole but DO NOT screw it in to check the oil
level. Remove the dipstick and check the level.
The oil level should be within the safe range
(between the H and L marks on the dipstick).
Dipstick Operating Range
4.
If additional oil is needed, refer to Specifications
for proper crankcase lubricant. Fill to the FULL
(H) mark.
IMPORTANT: DO NOT overfill crankcase [oil
above FULL (H) level] as this CAN result in
engine overheating, loss of power, and possible engine damage.
Maintenance Instructions
Changing Engine Crankcase Oil/Oil Filter
LUBRICATION
7.
Install the new oil filter on the engine. Turn the
oil filter clockwise until the rubber gasket contacts the sealing surface, then tighten the filter
an additional 3/4 turn.
8.
Reinstall the drain plug. Make sure it is tightened to 16.5 ft-lb (23 N·m).
9.
Fill the crankcase (through the dipstick opening)
with oil using only crankcase lubricants supplied
by the engine manufacturer. Refer to Specifications 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 (H) mark on the dipstick; crankcase
capacity is 2.7 pints (1.3 liters).
Change the engine crankcase oil after every 50
hours of operation and the oil filter after every 100
hours of operation as follows:
1.
Park the mower on a level surface with the
engine 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 it to keep any dirt or debris out of the
engine.
3.
Remove the dipstick and oil drain plug, and drain
oil into a suitable container. Be sure to allow
ample time for complete drainage.
4.
Before removing the oil filter, clean the area
around the filter to keep dirt and debris out of the
engine.
5.
Remove the old oil filter and wipe off the filter
mounting surface on the engine.
Oil Filter
IMPORTANT: Check the dipstick reading before pouring in the last 1/2 pint of oil and fill only
to the FULL (H) mark. The oil level should
never be over the FULL (H) mark on the dipstick;
overfilling can result in engine overheating and
loss of power.
10. Start the engine and check for oil leaks around
the oil filter. Stop the engine, recheck the oil level, and add oil if necessary. (When the engine
is first operated with a new oil filter, the oil level
will drop slightly as the filter is filled with oil.)
Grease Fitting and Oil Point Lubrication
Dipstick
(Oil Fill)
Oil Drain
Oil Drain, Dipstick (Oil Fill),
and Oil Filter Locations
(view from lower left side of tractor)
6.
Apply a thin coating of new oil to the rubber gasket on the replacement oil filter.
IMPORTANT: Use ONLY oil filters from the
engine manufacturer. Aftermarket oil filters may
not seal properly and/or may not have the correct pressure relief valve for proper lubrication.
Lubricate the grease fittings 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 fittings 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 tractor) require routine lubrication after every 8 hours of
running time.
NOTE: The pillowblock bearings on the PTO drive
shaft are a sealed, relubricatable-type bearing.
Grease lightly once per year using care to not
over-lubricate and damage the seals.
43
Maintenance Instructions
Ident
No.
44
Location
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Lubrication
Type
LUBRICATION
No.
Places
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2LO
2LO
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Ident
No.
Location
Lubrication
Type
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No.
Places
*UHDVH
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QRVFKHGXOHGOXEULFDWLRQ2LOOHYHOVKRXOGEHFKHFNHGRQO\
ZKHQDQRLOOHDNLVQRWHG
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5HIHUWR*HDU$[OH/XEULFDWLRQ(QJLQH2LO7UDFWRU372
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SHU\HDUGRQRWRYHUJUHDVHRUVHDOVZLOOEHGDPDJHG
NOTE: DGHS42 Tilt-Up Deck is shown for reference.
For other Deck Lubrication Points, Refer to
Deck and Carrier Frame Illustrated Parts
Manual.
Maintenance Instructions
1
2
3
LUBRICATION
2
1
4
4
10
10
5
6
7
6
6
7
6
8
8
9
9
31
14
15
11
15
13
12
11
27 & 34
16
19
12
28 & 33
17
18
19
18
20
21
13
32
31
22
30
23
29
23
25
24
25
22
28
24
27
26
26
Chassis and Deck Lubrication Points
45
Maintenance Instructions
LUBRICATION
Mower Deck Gearbox Lubrication
The mower deck gearboxes (tee gearbox and blade
drive gearboxes) are connected as a unitized
assembly, and oil flows freely between them. The
gearboxes are permanently lubricated (oil filled) and
sealed requiring no scheduled lubrication. However,
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 environment.
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.
Blade Drive
Gearboxes
Tee
Gearbox
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) 90W oil until the oil level is up to (submerges) the horizontal shaft in the gearbox
(shaft parallel to cover plate).
NOTE: In case the gearboxes are completely
drained of oil, approximately 5 fl. oz. (15 cl) of oil
per gearbox is required to refill the gear drive
assembly.
46
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 flow throughout the assembly and
the oil level to stabilize before reassembly.
IMPORTANT: DO NOT overfill the deck gearboxes. The gearbox assembly is not vented,
and overfilling 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 in-lb (2.7 N·m).
Tractor PTO Gearbox Lubrication
The tractor PTO gearbox is permanently lubricated
(oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be
checked every 25 hours for indication of oil leaks. If
evidence of an oil leak is noted, replace the oil seal
and relubricate the gearbox. The gearbox will need
to be removed from the tractor to be serviced. Refill
with SAE E.P. (extreme pressure) 90W oil until oil
level is up to (submerges) horizontal shaft of gearbox
(shaft parallel to cover). DO NOT overfill.
NOTE: In case the gearboxes are completely
drained of oil, approximately 5 fl. oz. (15 cl) of oil
per gearbox is required to refill the gear drive
assembly.
PTO
Gearbox
Tractor PTO Gearbox
Maintenance Instructions
Gear Axle Lubrication
• The gear axle oil lubrication is SAE 80W-90 (API
GL-5) gear lube.
• Check the axle oil level after every 100 hours of
operation by removing the oil level plug. If additional
oil is needed, remove the breather vent on top of axle and fill until oil is at the level plug.
• Change axle oil every 1000 hours or two (2)
years.
Hydrostatic Transmission Fluid
Checking Hydrostatic Transmission Fluid Level
LUBRICATION
* Slowly add fluid into the reservoir until
fluid starts to leak from around the plug.
(Transmissions are serviced from the
factory with Mobil DTE 18M hydraulic
oil. When it is necessary to add fluid,
refer to Specifications for the proper fluid. Use any of the fluids listed.)
* As soon as there is fluid leaking from
around the air bleed plug, tighten the
plug and fill the reservoir to the COLD
level mark. Wipe any excess oil off of
the transmission housing.
Reservoir Cap
Hydrostatic transmission fluid level should be
checked every 25 hours of machine operation. It is
preferable to check the fluid level when fluid is
cold. Check fluid level as follows:
Hot Level
Cold Level
1.
Park the mower on a level surface. Stop the
engine and wipe dirt and contaminants from
around the reservoir cap and air bleed plug.
IMPORTANT: Before removing the reservoir
cap, clean any dirt from around it. Any dirt or
contaminants entering the transmission will
accelerate wear and eventually cause loss of
power to the drive wheels.
2.
Remove the reservoir cap and check the level of
the fluid. The reservoir has a fluid level COLD
mark and HOT mark. The reservoir oil level
should ALWAYS be at or above the COLD
mark and NEVER above the HOT mark.
3.
If the fluid is below the COLD mark (or the transmission is not performing properly), loosen the
air bleed plug (located on the top of transmission case next to the plastic reservoir).
a.
If a small amount of fluid leaks from around
the air bleed plug:
* The transmission is full of fluid.
* Tighten the plug and fill the reservoir to
the COLD level mark.
b.
Air Bleed
Plug
Transmission Reservoir
and Air Bleed Plug Location
IMPORTANT: DO NOT overfill the transmission
reservoir. This will result in oil leaking out of the reservoir cap vent when the transmission warms up. It
is preferable to add fluid to the transmission when it
is cold and make sure the oil is not above or below the COLD level mark.
IMPORTANT: The transmission reservoir has a fine
mesh screen in the bottom to trap dirt and foreign
particles from entering the transmission. When filling
the reservoir, fluid will flow quite slowly through this
screen; so it is essential that there is fluid at the bleed
plug before the transmission is considered full.
IMPORTANT: Any attempt to remove or in any way
alter the filtering screen in the transmission reservoir
could cause damage to the transmission and will
VOID any transmission warranty.
If no fluid leaks from around the air bleed
plug:
47
Maintenance Instructions
CLEANING
CLEANING
Push Button to Reset
Indicator After Service
Engine Air Cleaner System
Donaldson Radialseal™ Air Cleaner
A remote mounted Donaldson Radialseal™ air
cleaner provides the air filtering function. The paper
filter element slides over an outlet tube inside the air
cleaner canister with radial sealing action, eliminating the possibility of dust leaks due to improper filter
installation. Intake design, internal baffling, and a
Vacuator™ valve provide dust separation and automatic precleaning action. Daily or frequent servicing
of the air cleaner is not required. Use the air restriction gauge on the air cleaner outlet to indicate when
the air filter needs servicing -- a red flag will appear
when the filter is overly restricting airflow into the
engine.
IMPORTANT: Use only Donaldson air filter elements for replacement (Donaldson P822686 or
Walker 5090-1). Aftermarket filters may not seal
properly or filter efficiently.
Canister
Cover
Cover Latch
Radialseal™
Filter Element
Air Restriction
Gauge
Air Restriction Gauge Location
Clean and inspect the paper element after every
100 hours of service and replace the element
yearly or after six (6) cleanings (or when dirty or
damaged). More frequent cleaning may be required
when operating in extremely dusty conditions as
indicated by a loss of engine power. Service the air
cleaner as follows:
1.
Release the top and bottom cover latches and
remove the air cleaner cover. Wash the cover
and Vacuator™ valve. Check that these components are in good condition. The Vacuator™
valve is subject to wear and deterioration and
should be replaced yearly or when damaged.
The lips of the valve should close and fit
together; any cracks, deformation, or wear in the
valve is cause for replacement.
2.
Remove the filter element by pulling it out of the
canister. There will be some initial resistance as
the filter seal breaks loose and slides off of the
outlet tube. Gently move the end of the filter up
and down and side to side or twist to loosen the
seal. Use gentle action to minimize the amount
of dust dislodged as the filter is removed.
3.
Clean the filter element using low pressure
compressed air [less than 100 PSI (689 kPa)].
Blow out the filter from the interior of the element
while turning the element.
Vacuator™
Valve
Air Cleaner Components
(shown with cover being removed)
IMPORTANT: The Donaldson air cleaner uses a dry
paper-type air filter element. NEVER apply oil to the
paper element.
NOTE: Washing the element in water or cleaning solution is not recommended. Replace the
element if it does not clean up with compressed
air.
48
Maintenance Instructions
4.
Use a bright light inside the element to inspect
for damage. Check the element very carefully
for pin holes or other damage that will allow
dirt to leak through the paper media. Replace
element if necessary.
5.
Check the condition and resilience of the radial
sealing surface (inside of the open end) of the filter. Replace the filter if any cracks, tears, or
other damage to the sealing surface are noted.
6.
8.
9.
Install the cover with the word "TOP" properly
oriented to the top of the canister. Give the
cover a slight twist as it reaches the canister to
make sure the tab inside the cover goes into a
slot, otherwise the cover will not fit properly.
Make sure both the top and bottom cover
latches are securing the cover in place.
Cover Latch
Orient to Top
of Canister
Use a clean, damp cloth and wipe the interior of
the air cleaner canister clean. Use special care
to clean both the inside and outside surfaces
of the outlet tube.
IMPORTANT: Any dust left on the inside of the
outlet tube will go into the engine and cause
wear.
7.
CLEANING
Check the outside surface of the outlet tube for
smoothness and cleanness (this is the sealing
surface).
Insert and seat the filter element carefully into
the canister, applying pressure at the outer rim
of the filter; not at the flexible center. Make sure
the filter element is completely in place before
installing the cover.
IMPORTANT: DO NOT use the cover latches
to force the filter into the canister -- the cover
should fit on with no extra force.
NOTE: DO NOT use petroleum based lubricants on the sealing surfaces of the filter; use talcum powder or dry silicone lubricants if required
for filter installation.
Outlet Tube
Vacuator™
Valve
Cover Latch
Proper Orientation of Air Cleaner Cover
10. Check the air intake hose for cuts, nicks, etc.,
and the hose clamps for tightness.
11. Reset the air restriction indicator (press button
on bottom).
Fuel Filter
Clean and inspect the fuel filter screen after every
50 hours of service. Replace if damaged. Service
the fuel filter as follows:
Fuel Shut-Off
Valve
Canister
Fuel Filter and
Sediment Bowl
Radialseal™
Filter Element
Radial Sealing
Surface
Safety Filter
Fuel Filter and Fuel Shut-off Valve Location
Air Filter Element Replacement
49
Maintenance Instructions
IMPORTANT: Service the fuel filter screen only in a
clean area where the fuel filter components will not
be contaminated by any dust and dirt.
CLEANING
Rotating
Engine Air
Intake Screen
DANGER
Gasoline is extremely flammable and can
be highly explosive. To minimize danger:
• Use an approved fuel container for gasoline.
• DO NOT allow open flames or sparks
while performing maintenance or refueling; DO NOT smoke while working with
fuel.
• Wipe up spilled gasoline immediately
and completely.
1.
Close the fuel shut-off valve.
2.
Loosen sediment bowl and remove filter screen
and gasket. Replace filter screen, if damaged
(use only Kawasaki replacement filter #490192095).
3.
Remove any sediment, wipe clean and reinstall
assembly.
4.
Open the fuel shut-off valve.
Engine Air Intake Screen
Cylinder Head Cooling Fins
It is essential for performance and longevity of the
air-cooled engine to keep the cylinder head cooling
fins 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, and feeling the
cooling airflow. If there is little or no airflow, clean the
cooling fins as follows:
DANGER
Make sure to keep hands clear of exhaust
pipe, muffler, and moving parts when
checking airflow.
Engine Cooling System
Air Intake Screen
To prevent engine overheating and possible engine
damage, clean grass clippings, chaff, and dirt from
the rotating engine air intake screen after every 8
hours of operation. In certain mowing conditions
(dry grass, leaves, tree “cotton”, etc.) it may be necessary to check and clean this area several times
each day to prevent engine overheating.
NOTE: The planned maintenance schedule calls
for cleaning the cylinder head cooling fins yearly or
every 300 hours as a minimum.
Cylinder Head
Shroud
CAUTION
Operating the engine with a blocked air
intake screen, dirty or plugged cooling
fins, and/or cooling shrouds removed will
cause engine damage from overheating.
50
Check for Airflow
Cooling System Airflow
Maintenance Instructions
1.
2.
3.
Inspect accessible cooling fins and clean with
compressed air as needed. If the buildup is
excessive, refer to step 2.
Remove the spark plug wire and disconnect the
breather tube on the valve cover. Do not disconnect the breather tube from the carburetor
side. Remove the cylinder head shroud by
removing the five (5) bolts, as shown in the
Inspect and Clean Cylinder Head Cooling
Fins photo. Cover the breather tube end and
spark plug boot before cleaning out the cooling
fins. Clean the cooling fins by blowing with compressed air. If the buildup is excessive, use a
piece of wire to probe into the fins for cleaning.
CLEANING
Grass Buildup in Mower 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 carrier
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.
Reinstall the shrouds by reversing the preceding
steps. Start the engine and confirm the cooling
airflow.
Spark Plug
Wire
Breather
Tube
Cylinder Head
Shroud Bolts
Body Bracket
Inspect and Clean
Cylinder Head Cooling Fins
(viewed from left side of tractor)
Deck Secured in 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 finally reached where cutting quality
deteriorates and clogging begins to occur
because of too much buildup on the baffling and
housing.
4.
Lower the deck to the normal operating position
and re-engage the deck lock levers.
51
Maintenance Instructions
CAUTION
CLEANING
2.
Do not operate machine with deck tilt-up
pivot joint unlocked.
GHS Blower
Normally, the GHS blower operates with no maintenance or cleaning. However, when mowing grass
that is dirty and damp (especially springtime mowing), 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.
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
effectively 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.
Blade Clutch
Lever
Compound
Pulley
PTO
Drive Belt
Belt Tightener
Idler Pulley
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 wire.
PTO Drive Pulley
1.
Remove the PTO drive belt from the GHS
blower pulley as follows: Move the blade clutch
(in direction of engagement) far enough to relax
the belt scrubber brake without tightening the
PTO drive belt. Roll the belt off of the blower pulley, then move blade clutch to full “engagement”
position. Both the drive belt and scrubber brake
bar should be clear of blower pulley, allowing
free movement of the blower wheel.
IMPORTANT: With the belt removed, 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).
52
Belt Scrubber Brake
(Relax to Remove PTO Drive Belt)
GHS
Blower
Pulley
PTO Drive Belt Removal
for Cleaning GHS Blower
3.
Reinstall the PTO drive belt by reversing the
removal procedure.
GHS Exhaust Screen
Refer to Cleaning the GHS Exhaust Screen in
Operating Instructions.
CLEANING/
CHECKING/SERVICING
Maintenance Instructions
Hydrostatic Transmission Cooling Fins
CHECKING/SERVICING
DANGER
Keeping the cooling fins on the hydrostatic transmissions clean and free of obstruction is essential to
avoid overheating the transmission fluid and shortening transmission life. The cooling fins should be
checked every 100 hours; and cleaned if
necessary.
To clean the fins, use compressed air and/or a pressure washer. The cooling fins extend all the way
around the housing -- the fins underneath need to be
clean as well as the more visible fins above. Also,
pay close attention to the area under the drive pulley.
IMPORTANT: In case an oil leak develops on the
input shaft, the cooling fan blowing dusty air and oil
on the transmission will quickly pack the cooling fins
with oily dirt. If this condition occurs, replace the
seal immediately to avoid overheating and damaging the transmission. The input shaft assembly and
seal are easily replaced without removing the transmission from the machine.
An additional procedure in maintaining transmission
cooling is to inspect the cooling fans. Replace the
fan(s) if blades are missing or damaged.
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 external
inspection and should be done without “disturbing” the filtration components.
On a daily basis, visually inspect the external condition of the complete air cleaner system. The
following items should be inspected:
1.
Check the Donaldson Radialseal™ air cleaner
canister 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.
2.
Inspect the air intake hose for cracks, nicks,
cuts, etc., and check the hose clamps for
tightness.
Battery
NOTE: For initial battery service during setup, refer
to Battery Service in Assembly Instructions.
Cooling
Fans
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.
Electrolyte Level
Cooling Fins
The battery electrolyte level should be checked after
every 25 hours of operation. To check electrolyte
level:
1.
Remove battery cell filler caps.
2.
Check the electrolyte level. If the level is below
the bottom of the vent well, fill with drinking
water to the bottom of the vent wells [1/4 to 1/2
in. (6 to 13 mm) above the plates].
Hydrostatic Transmission Cooling Fins
53
CHECKING/SERVICING
Maintenance Instructions
3.
Replace filler caps.
IMPORTANT: DO NOT overfill the battery. Electrolyte will overflow through the vent tube onto parts of
the machine and WILL result in severe corrosion.
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
Tire Pressure
Inflate tires to pressures shown below:
Deck Caster Wheel = 20 PSI (137 kPa)
Drive = 15 PSI (103 kPa)
Rear = 20 PSI (137 kPa)
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/
REPAIRING the Mower Blades in this section).
Use the following procedure to check and sharpen
blades:
• Charge the battery in a well-ventilated
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.
area, so that gases produced while charging can dissipate.
1.
Stop the engine, remove ignition key, and disconnect 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 Deck Secured in Tilt-Up Position
photo in CLEANING of Grass Buildup in
Mower Housing in this section).
BATTERIES PRODUCE EXPLOSIVE
GASES
• Keep sparks, flames, and smoking materials 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 unplugged before connecting or disconnecting cables to the battery.
DANGER
NEVER operate cutter blades with the
deck in the raised position.
Check the battery charge by measuring the specific
gravity of electrolyte; if specific gravity is less than
1.225, the battery will need to be charged as follows:
3.
54
1.
Charge the battery at 15 amps for 10 minutes.
DO NOT exceed 20 amps maximum recommended charging rate. Charge until specific
gravity is at least 1.250. Total charging time
should not exceed one (1) hour.
2.
After charging the battery, use drinking 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].
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
Intersection
Wear Area
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.
4.
5.
Sharpen at Original
30° Angle
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
flat washer that mounts the blade.
30°
Wing Tip
Do Not Grind or
Sharpen on Underside
Mower Blade Profile For Sharpening
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 file.
CAUTION
Blade Balancer
ALWAYS wear eye protection and gloves
when sharpening a blade.
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.
Blade Balanced on Magnetic
Wall-Mounted Balancer
7.
Mount the blade with wing tips pointing up into
the housing. Reinstall the blade, washer, lock
washer, and nut. Tighten the nut to 60 ft-lb
(81.3 N·m).
NOTE: When reinstalling blades on GHS models,
remember, the blades turn toward each other
(counter-rotate) and the RH and LH blade cannot be
switched. Check for proper blade rotation before
installing blades on the deck. Refer to Blade Rotation for GHS Mower Deck illustration shown in
Clogging Checklist in Operating Instructions for
correct blade rotation.
55
Maintenance Instructions
CHECKING/SERVICING
Drive Belts
Breaker Points
Raise the body and inspect the condition of the three
(3) drive belts after every 25 hours of operation -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.
The Kawasaki engine is equipped with electronic
ignition. No breaker points, maintenance, or adjustments are necessary with this system. Contact an
authorized Kawasaki engine dealer in case of ignition failure.
Fuel Lines and Clamps
Mower Deck Gearbox Oil Seals
The mower deck gearbox seals should be inspected
every 25 hours for evidence of oil leaking; particularly 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.
Spark Plug
Every 100 hours, 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 Specifications 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 ft-lb (23 N·m).
56
Every year, inspect the fuel line from the tank to
engine for deterioration or damage. Also, inspect the
fuel line clamps for tightness. Good preventive
maintenance calls for complete replacement of fuel
lines and clamps every two (2) years.
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 on GHS models) 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 five (5)
seconds after disengagement of the clutch. If the
brake system malfunctions -- blades do not stop in
five (5) seconds -- adjust or repair the brake before
operating the mower.
Maintenance Instructions
REPLACING/REPAIRING
REPLACING/REPAIRING
Drive Belts
There are three (3) individual belts on the machine:
DANGER
• Engine Belt
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 replacement parts. Substitute parts CAN result in
product malfunction and possible injury to the operator and/or others.
• PTO Drive Belt
• Ground Drive Belt
The belts may be removed and replaced using the
procedures described on the following pages.
PTO Drive Belt
Engine Belt
Ground Drive Belt
Belt Locations
57
Maintenance Instructions
REPLACING/REPAIRING
Engine Belt
1.
b.
To remove the engine belt:
a.
Roll the belt off the compound pulley and
remove the belt.
Relax the belt by depressing the springloaded idler arm.
Engine Belt
Compound
Pulley
Idler Pulley
Push Idler Pulley
to Relax Belt
Tension Spring
Belt Tightener
Arm
Engine Pulley
Engine Belt (Disengaged)
2.
Reverse the removal procedure to replace the
engine belt.
Engine Belt
Compound
Pulley
Idler Pulley
Tension Spring
Belt Tightener
Arm
Engine Pulley
Engine Belt (Engaged)
58
Maintenance Instructions
REPLACING/REPAIRING
PTO Drive Belt
1.
To remove the PTO drive belt:
c.
a.
Remove the engine belt, as described in
previous section.
b.
Remove 1/4-20 x 3/4 bolt locating belt
guide on gearbox pulley and rotate guide
to clear belt.
2.
Move blade clutch (in direction of engagement) far enough to relax belt scrubber
brake without tightening the PTO drive belt.
Roll belt off PTO drive pulley and GHS
blower pulley (GHS model only).
Install the PTO drive belt by reversing the
removal procedure. Check scrubber brake
adjustment and brake action.
Remove Bolt and Rotate Belt Guide to Clear Belt
Compound Pulley
Engage Clutch
Belt Guide
Clutch Idler Pulley
PTO
Drive Belt
Blade Clutch
Lever
GHS
Blower
Pulley
Clutch
Actuator Assembly
PTO Belt Tightener
Linkage
PTO Drive
Pulley
Belt Scrubber Brake
(Relax Brake to Remove Belt)
PTO Drive Belt Removal
59
Maintenance Instructions
REPLACING/REPAIRING
Ground Drive Belt
1.
b.
To remove the ground drive belt:
a.
Slide belt off pulleys, then release the
idler.
Raise the spring-loaded idler to relax belt.
Raise Idler Pulley to Relax Belt
Idler Pulley
Belt Tightener Arm
Tension Spring
Hydrostatic
Drive Pulley
Transmission
Drive Pulley
Ground Drive
Belt
Hydrostatic
Drive Pulley
Ground Drive Belt Assembly (Disengaged)
2.
Reverse the procedure to install the ground
drive belt.
Idler Pulley
Belt Tightener Arm
Tension Spring
Hydrostatic
Drive Pulley
Transmission
Drive Pulley
Ground Drive
Belt
Hydrostatic
Drive Pulley
Ground Drive Belt Assembly (Engaged)
60
Maintenance Instructions
REPLACING/REPAIRING
Blade Overload Shear Bolts
PTO Shear Pin
The 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.
The PTO drive shaft connection to the deck gearbox
has a shear pin to provide shock load protection to
the mower deck drive. This system provides primary shock protection in case of blade impact and will
normally shear before the individual shear bolts on
the blade hub.
When the PTO pin has sheared, use the following
procedure to replace it:
Cutting Blade
Shear Bolts
Cutting Blade Shear Bolts
NOTE: Tightening the 5/8-18 blade mounting nut
to 60 ft-lb (81.3 N·m) is also important for proper
shock load protection. It is important to not overtighten the mounting nut since this defeats (overrides) the function of the shear bolts.
1.
Loosen the two bolts securing the PTO shaft
guard on the deck; lift the guard off. (Holes in
guard are slotted for easy removal.)
2.
Rotate U-joint on shaft to align the shear pin hole
with the hole (and shear pin fragment) in the
shaft. Use a punch to drive the remaining portion
of the old shear pin out.
3.
Install new shear pin and secure with cotter pin.
Set Screw
Shear Pin
Split Spring Pin
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.
U-Joint
Tube Assembly
U-Joint
Shaft Assembly
After reinstalling the blade, check blade timing 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.
Cotter Pin
PTO Shear Pin
IMPORTANT: Use only Walker P/N 8067-13
shear pins for replacement to provide proper
shock protection -- these pins are hardened to
shear under a specific amount of load.
4.
Reinstall the PTO shaft guard.
Before operating the deck, inspect the blade overload shear bolts and also 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.
61
Maintenance Instructions
Mower Blades
WARNING
Mower blades are removed and remounted as described in the Sharpen Mower Blades instructions
(refer to CHECKING/SERVICING in this section).
During 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 flat 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) flat section remains at the
blade tip.
• Examine ends of the blade carefully, especially the
intersection where the flat section of the blade turns
up to form the “wing tip” (refer to CHECKING/SERVICING for Mower Blade Profile 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 metal 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
off creating a serious potential for injury or
damage.
• 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 difference 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.
62
REPLACING/REPAIRING
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 CHECKING/SERVICING in this section. If blades are replaced, always
use Walker original equipment blades to ensure
safety and optimum performance. The quality and
performance of replacement blades offered by
other manufacturers cannot be guaranteed, they
could be dangerous.
CAUTION
ALWAYS use genuine factory replacement
parts. Substitute parts CAN result in product malfunction and possible injury to the
operator.
Maintenance Instructions
ADJUSTMENTS
ADJUSTMENTS
Steering Levers
An adjustment range of approximately 3 inches is
available on the steering levers - the levers can be adjusted forward or aft depending on the arm length of
the operator. The levers can be adjusted by loosening the locknut at the pivot point and the locknut holding the lever in position in the adjustment slide.
Adjust levers into most comfortable position and
tighten both locknuts.
Jam Nut
Set Screw
Tilt-Up Deck Adjustable Stop
Adjustment
Slide
Locknut
(Position)
GHS Signal Horn Adjustment
(When Horn Sounds at Wrong Time)
DANGER
PINCH POINT - SPRING LOADED DOOR
Locknut
(Pivot Point)
Steering Lever Adjustment
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
hitch pins used for height adjustment should sit flush
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.
When lowering the door on the GHS
catcher, depress the safety latch on the
side of the catcher. BE VERY CAREFUL to
keep hands, fingers, 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.
The vertical position of the Grass-Pak® switch is critical to make sure the catcher box does not overfill
causing the delivery chute to clog. The vertical position can be adjusted by bending the mounting
bracket for the Grass-Pak® switch.
63
Maintenance Instructions
1.
Position the discharge chute so that it is pointing straight back.
a.
Turn the ignition switch ON 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.
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.
2.
Measure from the exhaust screen (top of catcher) to the top of the Grass-Pak® switch actuator
vane, as shown. The proper measurement
should be between 4 and 4-1/2 inches (10.16
and 11.43 cm).
Exhaust
Screen
4 to 4-1/2 in.
Bend
Point
Adjusting the Grass-Pak® Switch
(Side view of Catcher Box)
64
ADJUSTMENTS
3.
If adjustment is required, hold the Grass-Pak®
switch mount bracket firmly, grasp the switch
and bracket and bend it down. Adjustments
should be done in very small increments checking the measurement each time until the recommended measurement is achieved. This
measurement is applicable to all catcher box
sizes.
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 fill the catcher differently
than dry fluffy 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 overfilling
and clogging of the grass delivery chute begins (regardless of mowing conditions).
0$,17(1$1&($1'6(59,&(5(&25'6+((7
DATE
SERVICE
ITEM
ENGINE
HOURS
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65
Operator’s Notes
66
LIMITED WARRANTY
FOR
WALKER
COMMERCIAL 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
Kubota Engine
Kawasaki Engine
Eaton Hydraulic Transmission
Peerless Gearboxes
Battery
Tires
The available warranties covering these items are furnished with each mower. Walker does not assume any warranty obligation, liability or modification for these items, which are covered exclusively by the stated warranty of the respective manufacturers noted above.
* An extended three (3) year warranty is offered on the Walker P/N 6200-9 Gear Axle Assembly.
2.
3.
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
Owner’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.
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 80525. 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 specific legal rights, and you may also have other rights which vary from state to state.
67
Lwa
99
Sound - Model MS
Vibration - Model MS
Sound Test
Vibration Level
Sound test conducted was in accordance
with 79/113/EEC and was performed on 22
March 96 under the conditions listed:
0.4g
Vibration levels at the operators handles
were measured in the vertical, lateral, and
longitudinal directions using calibrated
vibration test equipment.
Tests were performed on 22 March 96 under the
conditions listed:
LpA
93
General Condition:
Clear
Temperature:
50 (F)o10 (C)o
General Condition:
Clear
Wind Speed:
< 5 mph (< 8 kmh)
Temperature:
50 (F)o10 (C)o
Humidity:
52%
Wind Speed:
< 5 mph (< 8 kmh)
Humidity:
52%
OPERATOR
Barometric Pressure: 24.9" HG (759 mm Hg)
Barometric Pressure: 24.9" HG (759 mm Hg)
WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614
FORM NO. 011505
PRINTED IN USA
www.walkermowers.com
©2005 WALKER MFG. CO
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