Walker MT owner manual Carburetor Adjustment, GHS Full Signal Horn with Grass-Pak Switch

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Maintenance Instructions

ADJUSTMENTS

2.Preliminary Setting: Turn the idle mixture nee- dle valve out (counterclockwise) 1-1/2 turns from the closed position. This initial adjust- ment will allow the engine to be started and warmed up prior to the final adjustment.

Low Idle Mixture

Needle Valve

(May be Non-Adjustable)

Idle Speed

ScrewFixed Main Jet Under

Shutdown Solenoid

Carburetor Adjustment

DANGER

The engine must be running to adjust the carburetor for engine idle. To guard against injury, keep hands, feet, face, and other parts of body away from the muffler/ exhaust pipe, other hot parts of the engine, and moving or rotating parts of the engine.

3.Start the engine and allow it to warm up by run- ning at 1/2 throttle for approximately five (5) minutes. The engine must be warm before making final settings.

4.Move the throttle to the idle position. Adjust idle speed for 1200 rpm (± 75 rpm) by adjusting the idle speed screw. Check the idle speed using a tachometer.

5.With the engine idling, adjust the idle mixture by turning the idle mixture needle valve in (slowly) from the preliminary setting until engine speed decreases and then back out approximately 3/4 to 1 turn to obtain the best low speed perfor- mance.

6.Recheck idle speed after the final idle mixture adjustment.

GHS “Full” Signal Horn with Grass-Pak ® Switch

If the GHS “full” signal horn is not sounding or is not adjusted to sound when the catcher is full, the fol- lowing troubleshooting and adjustment instructions apply:

Troubleshooting (When Horn Fails to Operate)

1.Check the horn.

a.Disconnect the two wires from the Grass- Pak® switch electric connector plug and make a jumper wire connection between these wires (bypassing switch).

b.Turn the ignition switch ON and move the blade clutch to the ENGAGED position (engine not running) to make the horn sound.

c.If the horn does not sound, the horn is bad and needs to be replaced.

d.If the horn does sound, proceed to step 2.

2.Check the Grass-Pak®switch.

a.Reconnect the wires to the Grass-Pak®switch electric connector plug.

b.Turn the ignition switch ON and move the blade clutch to the ENGAGED position (engine not running).

c.Open the catcher back door and trigger the Grass-Pak®vane by hand as it oscillates.

WARNING

PINCH POINT - SPRING LOADED DOOR

When lowering the door on the GHS catch- er, depress the safety latch on the side of the catcher 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.

d.The horn should sound as the switch is moved in both directions. If the horn does not sound, the switch is bad and needs to be replaced.

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Contents Please Read and Save These Instructions Foreword Table of Contents Grass Buildup in Mower Housing Engine Air Cleaner SystemREPLACING/REPAIRING Mower Deck Gearbox Replacement GHS Blower AssemblyGlossary General InformationIdentifying Number Locations Fill In By PurchaserServicing of Engine and Drivetrain Components Engine SpecificationsElectrical System TransmissionTransmission Fluid TransmissionGround Travel Speed Blade DriveTire Pressure Curb Weight ApproximateMower Deck Blade Size TypicalSeat Drive BeltsFront View and Right Side View Component IdentificationRear View and Left Side View Top View Engine Compartment PTOBefore Operating Safety InstructionsDo not mow with bystanders in the area Operating Maintenance Safety Instructions SAFETY, CONTROL, and Instruction Decals SAFETY, CONTROL, and Instruction Decals Setup Instructions Assembly InstructionsBattery Service Wet Battery ServiceBattery Installation Battery ChargingBattery Installation Mower Deck Assembly Deck Caster Wheels InstallationDischarge Shield Installation On Side Discharge Deck Deck Caster Wheel InstallationDeck Installation Mower Deck lnstallation on TractorMower Deck Installation PTO Shaft Connection Installing PTO Quick CouplerCoupler Ring Locked Position Machine must be shut off during this procedure Deck Counterweight Spring InstallationDeck Leveling Deck LevelingTions Refer to Adjustments of Carburetor in MainteRefer to CHECKING/SERVICING the Battery Refer to Gear Axle Lubrication in MaintenanceDeck Secured in TILT-UP Position Adjust Mower Cutting HEIGHT, if RE- Quired Control IDENTIFICATION, LOCATION, and Function Operating InstructionsEngine Choke Operating ControlsEngine Throttle Choke and Throttle LocationSteering Levers Blade Clutch PTOLockout Lever Location Front Body Latch ReleaseOptional 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 VoltmeterDisengaged Starting the EngineOptional Cold Start Lever Keep feet on footrests all times when the machine is moving Adjusting Ground Speed and SteeringEngaging the Mower Correct Operator Hand Position On the ControlsBlade Clutch Disengaged Blade Clutch EngagedStopping the Machine Transmission Lockout Cutting Height AdjustmentLockout Lever Freewheel Position Lockout Lever Normal Operating PositionSide Discharge Shield in Lowest Position Recommendations for MowingMaximum Recommended Side Slope Recommendations for TILT-UP Deck OPERATION/TRANSPORT GHS Flow and Components GHS Model OnlyBlower Intake Cover General InformationRotating Blower Blades Forward Clogging ChecklistBlade Rotation for GHS Mower Deck View from underneath Full Signal Horn PowerfilCleaning the GHS Exhaust Screen Grass Catcher Screen Removal for CleaningUsing the Dump Bag 7.0 Bushel Catcher Catcher Door Safety LatchTailgate Dumping Pinch Point Spring Loaded DoorDumping Catcher into Dump Bag Power Dump OptionPower Dump Components Maintenance procedures requiring special training or Maintenance InstructionsService Item 100 200 Every Daily Hours Yearly 2Years Tools should be performed by a trained technicianImportant Tips for Care of the Kohler Engine Engine Oil LubricationDipstick Operating Range Grease Fitting and Oil Point Lubrication Oil Drain/Oil Filter LocationIdent Lubrication Location Type Chassis and Deck Lubrication Points Mower Deck Gearboxes Mower Deck Gearbox LubricationDSD52 or DSD62 Mower Deck Lubrication Blade Spindle LubricationDipstick Location, Tractor PTO Gearbox Checking Gearbox Oil LevelGear Axle Lubrication ∙ Change axle oil every 1000 hours or two 2 yearsTransmission Reservoir Air Bleed Plug Location Checking Hydrostatic Transmission Fluid LevelChanging Hydrostatic Transmission Fluid Engine Air Cleaner System Components CleaningDonaldson Radialseal Air Cleaner Primary Turbine PrecleanerAir Cleaner Components Shown with cover being removed Air Restriction Gauge LocationAir Filter Element Replacement Paper Element Kohler Air Cleaner Secondary Foam PrecleanerEngine Air Intake Screen Cooling Fin Access Panels Air Filter Reinstallation Engine Cooling SystemAir Intake System Cooling System AirflowDeck Secured in UP Position Non-Tilting DecksTilt-Up Decks Inspect the blower frequently for dirt buildup Hydrostatic Transmission Cooling Fins BatteryCHECKING/SERVICING Electrolyte LevelCleaning the Terminals Blade Balanced on Magnetic Wall-Mounted Balancer Mower Blade Profile For SharpeningSpark Plugs REPLACING/REPAIRINGBelt Locations REPLACING/REPAIRINGEngine PTO Drive Belt Removal Engine PTO Drive Belt 3 Groove Power BandJackshaft Drive Belt Engaged Jackshaft Drive Belt DisengagedGHS Blower Drive Belt Assembly Engaged Hydrostatic Ground Drive Belt Assembly Engaged Hydrostatic Ground Drive Belt Assembly DisengagedFuel Filter Location Fuel FilterFuel Shut-Off Valve and Filter Blade Overload Shear Bolts Cutting Blade Shear BoltsMower Blades GHS Blower Assembly Removal GHS Blower Assembly and/or Blower WheelRemove Skid Bar for GHS Blower Removal Pressing Blower Wheel Out of Housing Seat Switch AdjustmentsPTO Switch Clutch Engagement/Belt Tension Blade Clutch PTOPTO Clutch Engaged PTO Clutch Disengaged Clutch Idler Pulley Travel Adjustment PTO Belt Tightener Stop Block AdjustmentsBlade Brake Band Adjustment Set Forward Travel Limit Stop Step Brake Actuator Rod AdjustmentSteering Lever End Play Adjustment Step Forward Speed Control Stop Steering Lever AdjustmentNeutral Function Adjustment Step Neutral Function AdjustmentStraight Ground Travel Adjustment Step Tilt-Up Deck Adjustable Stop GHS Full Signal Horn with Grass-Pak Switch Carburetor AdjustmentTroubleshooting When Horn Fails to Operate Adjustment When Horn Sounds at the Wrong Time Checking the Grass-PakSwitchGrass-PakSwitch Vane Adjustment Circuit BreakersWiring Diagram Model MT Operator’s Notes Operator’s Notes Operator’s Notes Limited Warranty For Walker Commercial Rider Mower Vibration Level Sound Test

MT specifications

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