Walker MT Manuale Utente

OWNER’S MANUALSafety, Assembly, Operating, and Maintenance InstructionsModel MT (20.0 HP)Model MTL (25.0 HP)Model MTEFI (26.0 HP)(Covers 2004 Producti

Specifications8MODELAIR COOLEDMT (20.0 HP)MTEFI (26.0 HP)LIQUID COOLEDMTL (25.0 HP)BLADE DRIVEPTO Shaft Quick Disconnect SplinedShaft with Two High-Sp

WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614FORM NO. 021404 PRINTED IN USA ©2004 WALKER MFG. COSound - Model MTSou

Specifications9MODELAIR COOLEDMT (20.0 HP)MTEFI (26.0 HP)LIQUID COOLEDMTL (25.0 HP)MOWER DECK (continued)Blade Size (Typical)42 in. (107 cm) SD 22 in.

Specifications10MODELAIR COOLEDMT (20.0 HP)MTEFI (26.0 HP)LIQUID COOLEDMTL (25.0 HP)GHS SYSTEM (Optional) (continued)Full Signal (Grass-Pak® Switch) O

Component Identification 11NOTE: Control Identificationshown in OperatingInstructions section.Grass Handling System9.5 Bushel Catcher (Optional)7.0 Bu

Component Identification12Catcher DoorGas SpringInstrument PanelGuardLeft HandDrive WheelCatcherDoor HandleDumpPlateCatcherDoorFuelFilterTailwheel For

Component Identification 13Air Restriction IndicatorAir Intake HoseMuffler GrassShieldThrottle and Choke LinkageOil Dipstick/Oil FillRubber Bumper(Cat

Component Identification14RadiatorHoseFuel PickupLineFuelFilterPrecleanerTubeFuel TankAir Intake HoseWaterPumpRadiatorOil Dipstick/Oil FillRadiator Ca

Component Identification 15Air Restriction IndicatorMuffler GrassShieldOil Dipstick/Oil FillThrottle LinkagePrecleanerTubeFuel TankAir Cleaner CoverCy

Safety Instructions16Pay particular attention to any information labeledDANGER, WARNING, CAUTION, IMPORTANT,and NOTE in this manual.When you see the S

Safety Instructions176. Do not wear loose fitting clothing that could getcaught in moving parts. Do not operate thismachine while wearing shorts; al

ForewordThank you. . .for purchasing a Walker mower. Every effort has been made to provide you with themost reliable mower on the market, and we are

Safety Instructions189. Watch for holes, rocks, and roots in the terrainand for other hidden hazards. When mowing tallgrass, mow higher than desired

Safety Instructions192. To reduce fire hazards, keep the engine free ofgrass, leaves, excessive grease, and dirt.3. Keep all nuts, bolts, and screws

Safety Instructions20Adjacent to Blower Discharge Chutethrough Body (5804)Front Body Adjacent toRH Steering Lever (7818)Hydrostat OilReservoir (5810-2

Safety Instructions 21Instrument Panel MT (8823-2), MTEFI (8823-3), MTL (8823-4)Fender, RH Side (7802)Catcher Door Hinge Bar,LH and RH Sides (586

Assembly Instructions22SETUP INSTRUCTIONSWalker Mowers are shipped partially assembled.After uncrating the tractor and mower deck, initialsetup is req

Assembly Instructions23To fill (activate) battery with electrolyte (if battery hasbeen shipped dry):1. Remove the battery hold down bar, disconnectthe

Assembly Instructions24Battery InstallationMower Deck AssemblyDeck Caster Wheels Installation1. Remove the bolt, nut, axle spacer tube, andspacer wash

Assembly Instructions25Deck Discharge Shield Installation(Side Discharge Models Only)Attach the deck side discharge shield by positioningthe shield hi

Assembly Instructions265. Connect the mower deck PTO drive shaftassembly to the tractor with the splined quickdisconnect coupler. This coupler simplif

Assembly Instructions27Deck Leveling1. Position mower on a smooth, level surface. Setthe cutting height to the highest position - 4 in.(102 mm) - fo

Table of Contents1General Information ________________ 4HIGHLIGHTED INFORMATION _____________ 4GLOSSARY ____________________________ 4IDENTIFYING NUMB

Assembly Instructions28PREOPERATING CHECKLISTBefore operating the mower for the first time, and asa routine before daily operations, it is important t

Assembly Instructions29 CHECK ENGINE COOLING SYSTEM - ModelMTL• Check the radiator air intake screen to makesure the screen is clean and free of obst

Assembly Instructions30 CHECK MOWER BLADE CONDITION, SHARP-NESS, AND SECURITY OF MOUNTINGThe blade mounting nut should be tightened to60 ft-lb (81.3

Operating Instructions31CONTROL IDENTIFICATION, LOCATION, AND FUNCTION Operating ControlsEngine Choke - (Model MT and MTL only)The choke control lever

Operating Instructions32Choke and Throttle Location (MT and MTL)Engine ThrottleThe throttle control lever (red knob) is located on theleft side of the

Operating Instructions33THROTTLEBLADE CLUTCH (PTO)Pull Up to EngagePARKINGBRAKELEFT WHEELSTEERING LEVERForward Position(No Control Change)Neutral-Park

Operating Instructions34Front Body Latch ReleaseThe front portion of the tractor body hinges forwardfor maintenance access and is latched down in theO

Operating Instructions35Instrument PanelInstrument PanelThis illustration shows the configuration of theswitches and indicators located on the instrum

Operating Instructions36HourmeterThe hourmeter displays operating time accumu-lated while the ignition switch is in the ON position.Voltmeter The volt

Operating Instructions37Ignition SwitchThe ignition switch is used to start and stop the en-gine. The switch has three positions: “O” is the OFFposit

2Table of ContentsMaintenance Instructions__________ 52MAINTENANCE SCHEDULE CHART _______ 52IMPORTANT TIPS FOR CAREOF THE KOHLER ENGINE ______________

Operating Instructions38STARTING THE ENGINE1. Before attempting to start the engine, makesure the operator is in the seat, the ForwardSpeed Control is

Operating Instructions39IMPORTANT: For Model MT and MTL, make surethe choke is in the OFF position during normal en-gine operation; running with the c

Operating Instructions40Correct Operator Hand Positionon the Controls3. Reverse direction of the mower by pulling bothlevers backward.NOTE: Smooth act

Operating Instructions41 Blade Clutch EngagedBlade Clutch DisengagedSTOPPING THE MACHINE1. Slow the engine to a fast idle; put the throttle inthe 1/2

Operating Instructions42ADJUSTING CUTTING HEIGHTCutting height is adjusted by positioning the four re-tainer hitch pins in a series of seven vertical

Operating Instructions43RECOMMENDATIONS FOR MOWINGIMPORTANT: Operate the engine at full speedwhen mowing, to allow the engine to produce fullhorsepowe

Operating Instructions44RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORTTo avoid potential deck and/or tractor damage whileusing the tilt-up deck,

Operating Instructions45GRASS HANDLING SYSTEM (GHS)GHS Model OnlyGHS Flow and ComponentsPTO and BladeGear DrivePTOClutchRear DischargeMower DeckDeckDi

Operating Instructions46General InformationThe Grass Handling System (GHS) consists of arear discharge mower deck connected to a 10 in.(25 cm) blower

Operating Instructions47Clogging ChecklistIn case of clogging, there will be a distinct changein the sound of the blower, i.e., the blower soundwill s

Table of Contents3ELECTRICAL SYSTEM __________________ 92Circuit Breakers ______________________ 92Wiring Diagram - Model MT_____________ 93Wiring Dia

Operating Instructions48• Check that the openings in the removable airexhaust screen in the grass catcher are notplugged. If the screen is clogged,

Operating Instructions49Dumping the CatcherFor dumping, the catcher either tailgate dumps intoa disposal area or dumps into the optional dumpbag. The

Operating Instructions503. Hook the bottom of the bag over the rearbumper while lifting on the handle strap(s).4. Tilt the catcher back to dump into t

Operating Instructions51Power Dump ComponentsGrass CatcherCableGuideCatcher DoorGas SpringCatcher DoorCable RodGuideCable AssemblyForkLift ChannelDoor

Maintenance Instructions52 MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MT, MTEFI, MTLService ItemDaily25 Hours100Hours200Hours

Maintenance Instructions KOHLER TIPS53IMPORTANT TIPS FOR CARE OF THE KOHLER ENGINEFuel System• Fuel must be clean - free from water, dirt, and or-gani

Maintenance Instructions KOHLER TIPS/LUBRICATION54Oil• Use only multi-viscosity oils as specified with theviscosity matching ambient temperatures for

Maintenance Instructions LUBRICATION55Changing Engine Crankcase Oil/Oil FilterFor Model MT and MTEFI, change the engine crank-case oil after every 100

Maintenance Instructions LUBRICATION56Ident Lubrication No.No. Location Type PlacesIdent Lubrication No.No. Location Type Places1 Deck Caster Wheel F

Maintenance Instructions LUBRICATION57Chassis and Deck Lubrication Points223115447788666610119131312151614141819191720 & 3622222124252327 27262930

4General InformationHIGHLIGHTED INFORMATIONWalker Manufacturing recommends that any ser-vice requiring special training or tools be performedby an aut

Maintenance Instructions LUBRICATION58Mower Deck Gearbox LubricationNOTE: These instructions apply to all mower deckswith gear-driven blades. Refer t

Maintenance Instructions LUBRICATION592. Check the oil level in the belt drive gearbox ev-ery 100 hours (or sooner if a visible oil leak hasdeveloped

Maintenance Instructions LUBRICATION60Hydrostatic Transmission FluidChecking Hydrostatic Transmission Fluid LevelHydrostatic transmission fluid level

Maintenance Instructions LUBRICATION/CLEANING613. Reinstall the lower drain plug, making sure therubber O-ring on the plug is in place and ingood cond

Maintenance Instructions CLEANING62Turbine PrecleanerThe turbine precleaner is mounted on a remote airintake tube connected to the Donaldson air clean

Maintenance Instructions CLEANING631. Release the top and bottom cover latches andremove the air cleaner cover. Wash the coverand Vacuator™ valve. C

Maintenance Instructions CLEANING64Engine Cooling System - MT20 and MTEFIAir Intake SystemTo prevent engine overheating and possible enginedamage, cle

Maintenance Instructions CLEANING652. Inspect the radiator cooling fins for materiallodged in this area which would restrict coolingairflow. Use pres

Maintenance Instructions CLEANING66NOTE: While some degree of material buildupin the mower deck housing can be tolerated, apoint is finally reached wh

67Maintenance InstructionsCLEANING/CHECKING/SERVICINGHydrostatic Transmission Cooling FinsKeeping the cooling fins on the hydrostatic transmis-sions c

General Information5Tractor Serial Number LocationMower Deck Serial Number LocationENGINE SERIAL NUMBER LOCATIONRefer to the engine manual that accomp

68Maintenance Instructions CHECKING/SERVICINGIMPORTANT: The coolant solution of antifreezeand distilled water must be thoroughly pre-mixed be-fore put

69Maintenance Instructions CHECKING/SERVICINGCleaning the TerminalsIf battery terminals are corroded, remove batteryfrom the mower. Using a wire brus

Maintenance Instructions CHECKING/SERVICING704. If the blade cutting edge is dull or nicked, itshould be sharpened. Remove blades forsharpening by gr

71Maintenance Instructions CHECKING/SERVICINGMower Deck Gearbox Oil SealsThe mower deck gearbox seals should be inspectedevery 25 hours for evidence o

Maintenance Instructions REPLACING/REPAIRING72REPLACING/REPAIRINGIMPORTANT: ALWAYS use genuine factory re-placement parts. Substitute parts CAN resu

Maintenance Instructions REPLACING/REPAIRING73Engine PTO Drive Belt (3 Groove Power Band)1. To remove the engine PTO drive belt:a. Remove the jackshaf

Maintenance Instructions REPLACING/REPAIRING74Jackshaft Drive Belt1. To remove the jackshaft drive belt:a. Remove the engine PTO drive belt, asdescrib

Maintenance Instructions REPLACING/REPAIRING75GHS Blower Drive Belt1. Remove the GHS blower drive belt tension bydepressing the idler pulley on the ti

Maintenance Instructions REPLACING/REPAIRING76Hydrostatic Ground Drive Belt1. To remove the hydrostatic ground drive belt:a. Raise the spring-loaded b

Maintenance Instructions REPLACING/REPAIRING77Fuel Filter - Model MT and MTLModels MT and MTL are each equipped with an in-line fuel filter. Visually

Specifications6MODELAIR COOLEDMT (20.0 HP)MTEFI (26.0 HP)LIQUID COOLEDMTL (25.0 HP)ENGINEManufacturer/Model Kohler Command CH20, 2 Cyl., Gasoline (Air

Maintenance Instructions REPLACING/REPAIRING78After reinstalling the blade, check blade timing bymoving blades through one (1) complete revolu-tion. M

Maintenance Instructions REPLACING/REPAIRING79Reinstall the blades following procedure inCHECKING/SERVICING for Sharpen MowerBlades instructions. If

Maintenance Instructions REPLACING/REPAIRING80Mower Deck Gearboxes(Shown with Gearbox Cover Removed for Clarity)GHS Blower Assembly (and/or Blower Whe

Maintenance Instructions REPLACING/REPAIRING81Pressing Blower Wheel Out of HousingBlower Wheel Installation1. To install the blower wheel, reverse the

82Maintenance Instructions ADJUSTMENTSADJUSTMENTSSafety SwitchesThere are three (3) safety interlock switches on thetractor; Seat Switch, FSC Neutral

Maintenance Instructions ADJUSTMENTS83Blade Clutch (PTO)Clutch Engagement/Belt TensionThe clutch engagement and PTO belt tension are ad-justed using t

Maintenance Instructions ADJUSTMENTS84Clutch Disengagement/Brake Action The declutched or disengaged position of theblade clutch idler pulley is adju

Maintenance Instructions ADJUSTMENTS85Use the following procedures to check and adjustclutch disengagement and brake action:Stop Block Eccentric Adjus

Maintenance Instructions ADJUSTMENTS86 Blade Brake Band AdjustmentNOTE: The length of the actuator rod is adjustedby disconnecting the bottom clevis a

Maintenance Instructions ADJUSTMENTS873. Tighten the jam nut on the forward travel stopadjusting bolt.Forward Speed Control Stop and Steering Lever Ad

Specifications7MODELAIR COOLEDMT (20.0 HP)MTEFI (26.0 HP)LIQUID COOLEDMTL (25.0 HP)ELECTRICAL SYSTEMBattery 12 Volt, 35AH, 295 CCA 12 Volt, 35AH, 295

Maintenance Instructions ADJUSTMENTS88Straight Ground Travel Adjustment - Step 41. Sit in the seat, start the engine (operate at nor-mal speed), and w

Maintenance Instructions ADJUSTMENTS89Tilt-Up Deck Adjustable StopWhen the carrier frame hinge joint is properly adjust-ed, the deck lock levers shoul

Maintenance Instructions ADJUSTMENTS90Carburetor Adjustment3. Start the engine and allow it to warm up by run-ning at 1/2 throttle for approximately f

Maintenance Instructions ADJUSTMENTS91GHS “Full” Signal Horn with Grass-Pak® SwitchIf the GHS “full” signal horn is not sounding when thecatcher is fu

92Maintenance Instructions ADJUSTMENTS/ELECTRICAL SYSTEMAdjusting the Grass-Pak® Switch3. If adjustment is required, hold the Grass-Pak®switch mount b

93Maintenance Instructions ELECTRICAL SYSTEMWiring Diagram - Model MTS1 = START CIRCUITS2 = START/ACCESSORY CIRCUITM = MAGNETO GROUND CIRCUITB = BATTE

94Maintenance Instructions ELECTRICAL SYSTEMRELAY - ARELAY - BONLYDEPT.SERVICETEST PLUGDIAGNOSTIC8685TO J12/J13TO J1/J2TO J1TO J11TO J10TO J3/J4TO J3T

95Maintenance Instructions ELECTRICAL SYSTEMOPTIONALLIGHTOPTIONALLIGHTRED/WHTRED/ WHTRED/ WHTWHTPURREDRELAY - DRELAY - C20 AMP FUSE10 AMP FUSEPUMPFUEL

96Maintenance Instructions ELECTRICAL SYSTEM_+-30858787A3085308587AIGNITION SWITCH CIRCUITSSTARTRUNOFFG + MB + AB + A / S1 + S2STARTPTO ONRELAY - APT

97LIMITED WARRANTYFORWALKERCOMMERCIAL RIDER MOWER1. WHAT THIS WARRANTY COVERS, AND FOR HOW LONG:Walker Manufacturing company will, at its option, repa