Walker S14 manual Blade Overload Shear Bolts, Cutting Blade Shear Bolts, PTO Shear Pin

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Maintenance Instructions

REPLACING/REPAIRING

Blade Overload Shear Bolts

NOTE: Blade shear bolts are not used on belt driv- en decks.

On gear driven decks each cutting blade is keyed to a 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 gear- box from damage if the blade encounters a shock load.

Cutting Blade

Shear Bolts

Cutting Blade Shear Bolts

NOTE: Tightening the 5/8-18 blade mounting nut to 60 lb·ft (81 N·m) is also important for proper shock load protection. It is important to not over- tighten the mounting nut since this defeats (over- rides) the function of the shear bolts.

If these bolts shear, remove the blade and install new bolts. Refer to CHECKING/SERVICING in this section for Sharpen Mower Blades which de- scribes the blade removal and installation proce- dure.

After reinstalling the blade, 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, con- tact your Walker dealer.

PTO Shear Pin (If Equipped)

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 pri- mary 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:

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

U-Joint

Tube Assembly

U-Joint

Shaft Assembly

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 over- load 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, con- tact your Walker dealer.

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Contents Operator’s Manual Foreword Table of Contents Maintenance Schedule Chart Important Tips for Care Identifying Number Locations General InformationGlossary Fill In By PurchaserServicing of Engine and Drivetrain Components Electrical System SpecificationsEngine TransmissionTire Size Blade DriveTire Pressure PSI KPA Width in. cm Dimensions Tractor and Mower Length in. cmWeight lb kg Height in. cmDrive Belts Mower DeckSeat Component Identification Front View and Right Side ViewRear View and Left Side View Top View Body Raised Before Operating Safety Instructions Before OperatingDo not mow with bystanders in the area Safety Instructions Before Operating Safety Instructions Operating Safety Instructions Operating Safety Instructions Maintenance Location Gearbox Cover Gear Drive Decks Only Part Number Safety InstructionsLocation Top of Fuel Tank Part Number Location Chassis Member Behind Transaxles Part NumberLocation Deck Discharge Shield SD Decks Only Part Number Location Each End of Mower Deck Part NumberLocation Deck Gearbox Cover Part Number Location LH Fender Part Number Location RH Fender Part NumberSetup Instructions Assembly InstructionsBattery Service Deck Caster Wheels Installation Battery InstallationBattery Installation Mower Deck Assembly Batteries Produce Explosive GasesDischarge Shield Installation On Side Discharge Deck Deck Caster Wheel InstallationPTO Shaft Guard Installation Deck Counterweight Spring Installation Deck InstallationMower Deck Installation PTO Shaft ConnectionDeck Leveling Machine must be shut off during this procedureDeck Leveling Fill Fuel Tank Refer to Lubrication for Transaxle LubricationBlades in Maintenance Instructions Control IDENTIFICATION, LOCATION, and Function Ignition Switch Key PositionsOperating Instructions Engine ChokeSteering Levers Engine ThrottleChoke and Throttle Location Forward Speed Control FSC Blade Clutch PTOParking Brake Hydro Lockout Arm LocationHourmeter Left Wheel Steering Leverright Wheel Operating Controls Top View from Drivers Point of ViewStarting the Engine Adjusting Ground Speed and SteeringEngaged Forward Speed Control Friction Adjustment Beginning Recommendations areCorrect Operator Hand Position On the Controls Blade Clutch Engaged Stopping the MachineHydro Lockout Arm Freewheel Position Cutting Height AdjustmentTransaxle Lockouts Hydro Lockout Arm Normal Operating PositionRecommendations for Mowing Side Discharge Deflector Shield Lowest Position No Driving ZoneRecommendations for TILT-UP Deck OPERATION/TRANSPORT GHS Model Only GHS Flow and ComponentsGeneral Information Rotating Blower BladesClogging Checklist ForwardPowerfil Using the Tilt-Up DeckFull Signal Horn Tailgate Dumping Positioning Dump Bag on Catcher Using the Dump BagDumping Catcher into Dump Bag Service Item 100 400 Every Maintenance InstructionsMaintenance procedures requiring special training or HoursImportant Tips for Care of the Subaru Engine Each USE LubricationNot Screwed Oil Drain Location View from Lower Right Side of Tractor Grease Fitting and Oil Point LubricationDeck and Carrier Frame Illustrated Maintenance Instructions Transaxle Lubrication Mower Deck Gearbox LubricationExpansion Reservoir Location Guard Air Cleaner Components Shown with Cover Removed CleaningEngine Air Cleaner System Components Air Filter Element Replacement Fuel Filter Proper Orientation of Air Cleaner CoverFuel Filter and Fuel Shut-off Valve Location Cooling Air Intake Screen Keep Rotating Engine Cooling Air Intake Screen CleanCooling System Airflow GHS Exhaust Screen Battery Transaxle HousingTransaxle Housing and Cooling Fins Transaxle Cooling FansWheel Nut Torque Charging the BatteryTire Pressure Sharpen Mower BladesMower Blade Profile for Sharpening Blade Balanced on Magnetic Wall-Mounted BalancerSpark Plug Drive BeltsIgnition Forward Speed Control Friction Lock REPLACING/REPAIRING Belt LocationsEngine Belt Disengaged Engine BeltEngine Belt Engaged PTO Drive Belt Disengaged PTO Drive BeltPTO Drive Belt Engaged Ground Drive Belt Assembly Engaged Ground Drive Belt Assembly DisengagedGround Drive Belt Cutting Blade Shear Bolts Blade Overload Shear BoltsPTO Shear Pin Mower Blades Transmission Control AdjustmentsSteering Lever Position Adjustment Lever AlignmentFSC Lever Position Adjustment Steering Handles AdjustmentCorrect FSC Lever NEUTRAL-PARK Position Maintenance Instructions FSC Neutral Switch Location FSC Friction Adjustment Test FSC Friction Adjustment NutPTO Clutch Engaged PTO Clutch Disengaged Blade Brake Band Adjustment Blade Brake Band Adjustment Clutch Disengaged Side View of Catcher Box Adjusting the Grass-PakSwitchPinch Point Spring Loaded Door With a little advance warning before overfillingOperator’s Notes Operator’s Notes Limited Warranty For Walker Model S14 Rider Mower Walker MFG. CO E. Harmony ROAD, Fort COLLINS, CO 80528 970

S14 specifications

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