Walker MT owner manual Tilt-Up Deck Adjustable Stop

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Maintenance Instructions

ADJUSTMENTS

Tilt-Up Deck Adjustable Stop

When the carrier frame hinge joint is properly adjust- ed, 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 existing side to lower the pin. Adjustments are made by loos- ening the jam nut and tightening or loosening the set screws on the Deck Mount Pivot Brackets. Retight- en the jam nut when the adjustment is complete.

Jam Nut

Set Screw

Tilt-Up Deck Adjustable Stop

Carburetor

CAUTION

DO NOT change the engine governor set- tings or overspeed the engine. The gov- ernor has been factory set for maximum safe engine operating speed.

The fixed main jet carburetor is designed to deliver the correct fuel-to-air mixture to the engine under all operating conditions. The high idle is set at the fac- tory and cannot be adjusted. The low idle mixture screw is also set at the factory and normally does not need adjustment. The only adjustment normally made to the carburetor is to set the idle speed. However, if the engine exhibits any of the following symptoms, it may be necessary to adjust or service the carburetor: black, sooty exhaust smoke; lack of power; engine miss or backfire; hard to start; rough running; stalls at low idle speed.

NOTE: Due to the technical requirements of mod- ern carburetors, refer to the Kohler Service Manual or contact an authorized Kohler engine dealer for carburetor adjustments and service not described in this section.

CAUTION

ALWAYS use the proper engine service manual when working on the engine. Un- authorized maintenance operations or modifications to the engine MAY result in unsafe operating conditions.

Since the carburetor main jet is non-adjustable, for operation above 5000 ft (1,524 m) above sea level, it may be necessary to change the carburetor main jet for best fuel economy and power. Contact an au- thorized Kohler dealer to change the carburetor main jet.

Engine Idle Adjustment

IMPORTANT: Some emission certified engines may not have an adjustable idle mixture needle valve; it is fixed from the factory and the adjustable screw is "capped". In this case, only the idle speed is adjustable and only Step 4 of the instructions be- low applies.

1.Gently close the idle mixture needle valve by turning it clockwise until it bottoms lightly.

IMPORTANT: The needle valve and carburetor seat may be damaged by turning the adjust- ment screw too tight.

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Contents Please Read and Save These Instructions Foreword Table of Contents Engine Air Cleaner System Grass Buildup in Mower HousingREPLACING/REPAIRING Mower Deck Gearbox Replacement GHS Blower AssemblyGeneral Information GlossaryIdentifying Number Locations Fill In By PurchaserServicing of Engine and Drivetrain Components Specifications EngineElectrical System TransmissionTransmission Transmission FluidGround Travel Speed Blade DriveCurb Weight Approximate Tire PressureMower Deck Blade Size TypicalDrive Belts SeatComponent Identification Front View and Right Side ViewRear View and Left Side View PTO Top View Engine CompartmentSafety Instructions Before OperatingDo not mow with bystanders in the area Operating Maintenance Safety Instructions SAFETY, CONTROL, and Instruction Decals SAFETY, CONTROL, and Instruction Decals Assembly Instructions Setup InstructionsBattery Service Wet Battery ServiceBattery Charging Battery InstallationBattery Installation Mower Deck Assembly Deck Caster Wheels InstallationDeck Caster Wheel Installation Discharge Shield Installation On Side Discharge DeckDeck Installation Mower Deck lnstallation on TractorInstalling PTO Quick Coupler Mower Deck Installation PTO Shaft ConnectionCoupler Ring Locked Position Deck Counterweight Spring Installation Machine must be shut off during this procedureDeck Leveling Deck LevelingRefer to Adjustments of Carburetor in Mainte TionsRefer to Gear Axle Lubrication in Maintenance Refer to CHECKING/SERVICING the BatteryDeck Secured in TILT-UP Position Adjust Mower Cutting HEIGHT, if RE- Quired Operating Instructions Control IDENTIFICATION, LOCATION, and FunctionEngine Choke Operating ControlsChoke and Throttle Location Engine ThrottleSteering Levers Blade Clutch PTOFront Body Latch Release Lockout Lever LocationOptional Cold Start Lever Jackshaft Drive Belt Release Optional Cold Start Lever Normal Operating PositionOperating Controls Top View from Drivers Point of View Instrument Panel Ignition Switch Ignition SwitchHourmeter VoltmeterStarting the Engine DisengagedOptional Cold Start Lever Adjusting Ground Speed and Steering Keep feet on footrests all times when the machine is movingCorrect Operator Hand Position On the Controls Engaging the MowerBlade Clutch Engaged Blade Clutch DisengagedStopping the Machine Cutting Height Adjustment Transmission LockoutLockout Lever Freewheel Position Lockout Lever Normal Operating PositionRecommendations for Mowing Side Discharge Shield in Lowest PositionMaximum Recommended Side Slope Recommendations for TILT-UP Deck OPERATION/TRANSPORT GHS Model Only GHS Flow and ComponentsGeneral Information Blower Intake CoverRotating Blower Blades Clogging Checklist ForwardBlade Rotation for GHS Mower Deck View from underneath Powerfil Full Signal HornCleaning the GHS Exhaust Screen Grass Catcher Screen Removal for CleaningCatcher Door Safety Latch Using the Dump Bag 7.0 Bushel CatcherTailgate Dumping Pinch Point Spring Loaded DoorPower Dump Option Dumping Catcher into Dump BagPower Dump Components Maintenance Instructions Maintenance procedures requiring special training orService Item 100 200 Every Daily Hours Yearly 2Years Tools should be performed by a trained technicianImportant Tips for Care of the Kohler Engine Lubrication Engine OilDipstick Operating Range Oil Drain/Oil Filter Location Grease Fitting and Oil Point LubricationIdent Lubrication Location Type Chassis and Deck Lubrication Points Mower Deck Gearbox Lubrication Mower Deck GearboxesDSD52 or DSD62 Mower Deck Lubrication Blade Spindle LubricationChecking Gearbox Oil Level Dipstick Location, Tractor PTO GearboxGear Axle Lubrication ∙ Change axle oil every 1000 hours or two 2 yearsChecking Hydrostatic Transmission Fluid Level Transmission Reservoir Air Bleed Plug LocationChanging Hydrostatic Transmission Fluid Cleaning Engine Air Cleaner System ComponentsTurbine Precleaner Donaldson Radialseal Air Cleaner PrimaryAir Cleaner Components Shown with cover being removed Air Restriction Gauge LocationAir Filter Element Replacement Kohler Air Cleaner Secondary Foam Precleaner Paper ElementAir Filter Reinstallation Engine Cooling System Engine Air Intake Screen Cooling Fin Access PanelsAir Intake System Cooling System AirflowNon-Tilting Decks Deck Secured in UP PositionTilt-Up Decks Inspect the blower frequently for dirt buildup Battery Hydrostatic Transmission Cooling FinsCHECKING/SERVICING Electrolyte LevelCleaning the Terminals Mower Blade Profile For Sharpening Blade Balanced on Magnetic Wall-Mounted BalancerREPLACING/REPAIRING Spark PlugsREPLACING/REPAIRING Belt LocationsEngine PTO Drive Belt 3 Groove Power Band Engine PTO Drive Belt RemovalJackshaft Drive Belt Disengaged Jackshaft Drive Belt EngagedGHS Blower Drive Belt Assembly Engaged Hydrostatic Ground Drive Belt Assembly Disengaged Hydrostatic Ground Drive Belt Assembly EngagedFuel Filter Fuel Filter LocationFuel Shut-Off Valve and Filter Blade Overload Shear Bolts Cutting Blade Shear BoltsMower Blades GHS Blower Assembly and/or Blower Wheel GHS Blower Assembly RemovalRemove Skid Bar for GHS Blower Removal Pressing Blower Wheel Out of Housing Adjustments Seat SwitchPTO Switch Blade Clutch PTO Clutch Engagement/Belt TensionPTO Clutch Engaged PTO Clutch Disengaged PTO Belt Tightener Stop Block Adjustments Clutch Idler Pulley Travel AdjustmentBlade Brake Band Adjustment Brake Actuator Rod Adjustment Set Forward Travel Limit Stop StepForward Speed Control Stop Steering Lever Adjustment Steering Lever End Play Adjustment StepNeutral Function Adjustment Step Neutral Function AdjustmentStraight Ground Travel Adjustment Step Tilt-Up Deck Adjustable Stop Carburetor Adjustment GHS Full Signal Horn with Grass-Pak SwitchTroubleshooting When Horn Fails to Operate Checking the Grass-PakSwitch Adjustment When Horn Sounds at the Wrong TimeGrass-PakSwitch Vane Adjustment Circuit BreakersWiring Diagram Model MT Operator’s Notes Operator’s Notes Operator’s Notes Limited Warranty For Walker Commercial Rider Mower Sound Test Vibration Level

MT specifications

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