Walker Guide on How to Clean Air Cooled Engine Fins and Lawn Mower Cooling Systems to Prevent Overheating
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Maintenance Instructions

CLEANING

Paper Element Gasket -

Lightly Grease to

Improve Sealing Action

Rubber

Seal

Air Cleaner Base Plate

(Check Sealing Surface)

Air Filter Reinstallation

Engine Cooling System

Air Intake System

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 nec- essary to check and clean the screen several times each day to prevent engine overheating.

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.

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 described below.

DANGER

Make sure to keep hands clear of exhaust pipe, muffler, and moving parts when checking airflow.

Every 100 hours, inspect and clean the cooling fins (more often when operating in extremely dusty, dirty conditions). Remove the two (2) cooling fin access panels in the engine shroud and clean the cooling fins and external surfaces using compressed air. Make sure to reinstall the access panels before op- erating the engine.

NOTE: Some Kohler engines have not been equipped with the cooling fin access panels. Kohler kit #25-755-21 installs the panels if they are missing.

Engine Cooling

Fin Access Panels

Kohler Engine

Shroud

Engine Air

Intake Screen

Engine Air Intake Screen

and Cooling Fin Access Panels

Cylinder

Head

Check Airflow

with Hand

Cooling System Airflow

57

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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

Walker, Montana, is a quaint and picturesque town nestled in the heart of the Treasure State. With a population of just under 2,000 residents, it possesses a unique charm that combines the beauty of nature with a tight-knit community atmosphere. The surrounding landscape boasts rolling hills and expansive fields, providing a stunning backdrop for outdoor enthusiasts seeking adventure or tranquility.

One of the main features of Walker is its commitment to sustainability and environmental conservation. The community is known for its efforts in promoting green technologies and practices. Many residents engage in eco-friendly farming, utilizing organic methods to cultivate the land and promote biodiversity. The town also actively participates in recycling programs and initiatives aimed at reducing waste, making it a great model for small-town sustainability.

Walker is a hub for modern technologies, with a focus on connecting residents to the digital world while preserving its historic roots. High-speed internet has become increasingly accessible, allowing local businesses to thrive and residents to enjoy the benefits of online connectivity. This digital shift has enabled the emergence of remote work opportunities and e-commerce, which has been pivotal for the local economy.

The town's infrastructure includes well-maintained roads and public transport options, ensuring ease of access for both residents and visitors. The local government has invested in smart city technologies, such as intelligent traffic management systems and energy-efficient street lighting, enhancing safety and improving quality of life.

Culturally, Walker celebrates its heritage through various events and festivals throughout the year. The annual Walker Fair showcases local artisans, musicians, and food vendors, creating a lively atmosphere that fosters community spirit. Education is also a priority, with schools emphasizing technological literacy and environmental awareness, preparing the next generation to thrive in a rapidly changing world.

Walker, Montana, stands out as a model small town that seamlessly blends nature, innovation, and community engagement. With its focus on sustainability, modern technologies, and rich cultural heritage, Walker offers a unique lifestyle that appeals to residents and visitors alike. Whether one seeks adventure in the great outdoors or the comforts of a close-knit community, Walker truly embodies the essence of Montana living.
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