Walker T23 Operator's Manual
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Walker T23 Operator's Manual

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Operator's Manual
Safety, Assembly, Operating, and Maintenance Instructions
Please Read and Save These Instructions
For Safety, Read All Safety and Operation
Beginning S/N: 170586
Instructions Prior to Operating Machine
P/N 8000-51

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Summary of Contents for Walker T23

  • Page 1 Operator’s Manual Safety, Assembly, Operating, and Maintenance Instructions Please Read and Save These Instructions For Safety, Read All Safety and Operation Beginning S/N: 170586 Instructions Prior to Operating Machine P/N 8000-51...
  • Page 2 Foreword Thank you. . .for purchasing a Walker mower. Every effort has been made to provide you with the most reliable mower on the market, and we are sure you will be among our many satisfied customers. If for any reason this product does not perform to your expectations, please contact your local dealer.

  • Page 3: Table Of Contents

    Table of Contents General Information Steering Levers .............31 Blade Clutch (PTO) ..........31 Highlighted Information ........1 Front Body Latch Release ........31 Glossary ...............1 Parking Brake ............33 Identifying Number Locations ......1 Transmission Lockout Levers ........33 Engine Serial Number Location ......2 Instrument Panel ............34 Servicing of Engine and Drivetrain Compo- Hourmeter .............34 nents ..............2...
  • Page 4 Table of Contents Maintenance Instructions Tire Pressure ............73 Wheel Bolt Torque .............73 Maintenance Schedule Chart ......55 Sharpen Mower Blades..........73 Important Tips for Care of the Drive Belts..............74 Kohler Engine ............56 Mower Deck Gearbox Oil Seals ........75 Fuel System ..............56 Spark Plugs...............75 Starting/Stopping ............56 Ignition Wires ............75 Cooling System ............56...

  • Page 5: General Information

    Walker Mower dealer. There are several general practices to be aware of in the ● RIGHT HAND (RH) refers to the right-hand area of safety.

  • Page 6: Engine Serial Number Location

    Tractor Serial Number Location please contact our Service Department for assis- tance: Serial Number Walker Manufacturing Company 5925 E. Harmony Road Fort Collins, CO 80528 1-970-221-5614 www.walker.com Service manuals are available for each of these...

  • Page 7: Specifications

    4.7 (17.8) Fuel Regular Grade Unleaded Gasoline (87 Octane Minimum, 10% Ethanol Maximum) Air Cleaner Remote Mounted Donaldson Radialseal (Walker P/N 5090-1 Primary/5090-3 Safety Filter) ELECTRICAL SYSTEM Battery 12 Volt, 300 CCA (Interstate SP-35) Charging System Flywheel Alternator Charging Output...
  • Page 8 Parking Brake Mechanical Pin Lock in Transmission Gear Neutral Transmission Release by Manual Dump Valve Hydrostatic Transmission Oil Transmission Oil Filtration Walker Transmission Oil Performance System (TOPS Factory Service Mobil SHC 630, Walker P/N 6450-20 Transmission Filter Walker P/N 5024-13 Transmission Oil Capacity fl oz (L) 80 (2.4)
  • Page 9 T23 Specifications DRIVE BELTS Engine PTO Walker P/N 8230 Jackshaft Drive Walker P/N 6250-1 Ground Drive, Micro-V Walker P/N 7248 Blower (GHS Model) Walker P/N 7234-2 SEAT Built-up Seat with Steel Frame, Extra Thick Foam Cushions and Bolsters, and Removable/Replaceable Nylon Backed Vinyl Covers...
  • Page 10 Specifications DIMENSIONS (Tractor and Mower) Length in. (cm) Tractor Only 64.25 (164) Tractor Wheel Base 41 (104) Tractor with Tilted Deck 77 (196) (Approximate) Tractor with 48" Collection Deck 93 (236) (DC48-1) Width in. (cm) Tractor Only (Outside Tire) 39 (99) Tractor with 48"...

  • Page 11: Component Identification

    T23 Component Identification COMPONENT IDENTIFICATION NOTE: Operator Controls are identified in the sec- tion Operating Controls on page 30. Turbine Grass Handling System Precleaner 10.0 Bushel Catcher Tilt-Up Latch Spring Clip Counterweight Spring and Protective Cover Transmission Control Rod Adjustment Nuts...
  • Page 12 Component Identification Removable Grass Catcher Door Catcher Screen Gas Spring (Not Visible) (Not Visible) Gas Spring Cover Catcher Door Catcher Lift / Dump Handle Instrument Panel Guard Catcher Air Exhaust Instrument Panel Box Dump (Shock Mounted) Flap Anti-Scuff Roller Catcher Door Handle Muffler Muffler...
  • Page 13 T23 Component Identification Fuel Filter Air Intake Donaldson Plenum Air Cleaner Air Cleaner Fuel Pump Voltage Regulator / Cover Rectifier Exhaust Grass Air Filter Shield Restriction Gauge Fuel Pickup Throttle and Line Choke Linkage EVAP Line Muffler Heat Shield Roll Over Valve...

  • Page 14: Safety Instructions

    When you see the Safety Alert Symbol ( safety. read, understand, and follow the instructions. Fail- The Walker Rider Lawnmower has been designed ure to comply with safety instructions may result in with many safety features to protect the operator personal injury.
  • Page 15 Safety Instructions Do not wear loose fitting clothing that could d. Always fill the fuel tank outdoors using get caught in moving parts. Do not operate care. Fill to about one inch from the top of this machine while wearing shorts; always the tank.

  • Page 16: Operating

    Safety Instructions OPERATING Do not operate machine if the operator presence safety switch system is not work- Operate the mower only in daylight or in ing. Verify proper operation by having the good artificial light with good visibility of the operator lift off the seat with the engine run- area being mowed.
  • Page 17 Safety Instructions 14. The maximum recommended slope operat- CAUTION ing angle is 15 degrees or 27% grade. When operating the machine on a slope, re- Use leg muscles and firm footing when lift- duce speed and use caution to start, stop, and ing the catcher to dump;...

  • Page 18: Maintenance

    Safety Instructions 25. When equipped with a factory installed hitch or Do not change the engine governor settings or factory authorized hitch kit, do not exceed overspeed the engine. The governor has recommended tow capacities. Do not tow been factory-set for maximum-safe engine with the PTO clutch or mower blades en- operating speed.

  • Page 19: Safety, Control, And Instruction Decals

    Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. 8600-4 Location: Adjacent to Blower Discharge Chute through Body...
  • Page 20 Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. Location: Deck Discharge Shield (SD Decks Only) 8600-28...
  • Page 21 Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. Location: Catcher Door Hinge Bar, LH and RH Sides Location: Front Body, LH Side Adjacent to...
  • Page 22 Safety Instructions SAFETY, CONTROL, AND INSTRUCTION DECALS Safety, Control, and Instruction Decals are installed on the machine; if any are missing, illegible, or damaged, a replacement should be ordered and installed before putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual. 60 lb·ft (81 N·m) 8600-9 Location: Gearbox Cover...

  • Page 23: Assembly Instructions

    A hazard may be created by damage to critical working parts and safety systems. SETUP INSTRUCTIONS Walker Mowers are shipped partially assembled to CAUTION our distribution network, and are typically assem- bled by the selling dealer. For any additional...

  • Page 24: Battery Charging

    Assembly Instructions Battery Charging Battery Installation IMPORTANT: Make sure battery is securely DANGER mounted in the frame. A loose battery may cause damage to the case resulting in acid leakage and BATTERIES PRODUCE EXPLOSIVE GASES severe damage to the machine. A hazard may be created by damage to critical working parts and ●...

  • Page 25: Mower Deck Assembly

    Assembly Instructions Mower Deck Assembly Deck Discharge Chute Installation (GHS Collection Models Only) CAUTION Mount the discharge chute hinge on top of the deck discharge opening using two (2) 1/4-20 x 1/2 The engine must be off during the tractor in.

  • Page 26: Pto Shaft Guard Installation

    Assembly Instructions Attach Shield Attach Spring Roller Wheels Discharge Shield Installation Tilt-Up Spring and Roller Wheel on Side Discharge Deck Installation on Collection Deck Mower Deck Installation on Tractor PTO Shaft Guard Installation Position the shaft guard as shown and mount with Deck Installation two (2) 1/4-20 x 1/2 in.
  • Page 27 Assembly Instructions Internal Balls PTO Drive Deck Support Arms Locked on Shaft Shaft Carrier Frame Tube Sockets PTO Coupler Coupler Ring in U-Joint Locked Position Mower Deck Installation Quick Disconnect Ring “Locked” Position Engage the deck carrier frame tube sockets IMPORTANT: When installing the DS52 Mow- on the tractor support arms.
  • Page 28 Assembly Instructions To reduce the weight of lifting the deck before the counterweight spring is installed, remove Counterweight one (1) deck height hitch pin from a rear deck Spring Clip support pin or alternately lift and block one side of the deck. Decks with a deck height adjuster installed will need to use the lift and block technique.

  • Page 29: Deck Leveling

    Assembly Instructions Deck Leveling WARNING The mower deck and support frame are jig welded; within normal tolerances, very little, if any, shim- The machine must be shut off during this ming should be required to level the deck. Tire procedure. pressure will influence the levelness of the deck.

  • Page 30: Ds60-3 Deck Leveling

    Assembly Instructions DS60-3 Deck Leveling than the front. If either set of measurements are not within tolerance, perform the Deck The mower deck and support frame are jig welded Leveling Procedure. and the deck support linkage is factory adjusted. Within normal tolerances, very little, if any, adjust- Deck Leveling Procedure ment should be required to level the deck.

  • Page 31: Preoperating Checklist

    Assembly Instructions Measure the side-to-side level of the deck by DANGER measuring from the ground to the top of the deck housing at the front corners of the deck Handle gasoline with care. Gasoline is as shown in the DS60-3 Deck Leveling illus- highly flammable and its vapors are explo- tration.
  • Page 32 Assembly Instructions ● Check condition, cleanliness, and security F CHECK FUNCTION OF SAFETY INTERLOCK of the complete air cleaner system (inspect SWITCHES air filter paper element every 100 hours). Refer to Safety Switch System on page 76 For detailed procedures, refer to Engine to check for proper operation of safety switch- Air Cleaner System on page 66.
  • Page 33 Assembly Instructions Tilt-Up Handle Tilt-Up Hook and Latch Connected Tilt-Up Latch Deck Lock Tilt-Up Lever Hook Deck Secured in TILT-UP Position CAUTION Do not operate machine with deck tilt-up pivot joint unlocked. DANGER Do not operate the mower with deck in tilt- up position.

  • Page 34: Operating Instructions

    Operating Instructions Operating Instructions Engine Choke The choke control lever (black knob) is located on CONTROL IDENTIFICATION, LOCA- the left side of the seat. To start a cold engine, move the choke control forward to the ON position. TION, AND FUNCTION After engine starts, move the choke control toward the OFF position, keeping enough choke to allow Operating Controls...

  • Page 35: Engine Throttle

    Operating Instructions Steering Levers Each drive wheel is controlled by its own indepen- dent steering lever, for both steering function and Throttle Choke FORWARD/REVERSE motion. The FSC lever sets the maximum forward speed, and also sets the forward position of the steering levers. The steering levers operate only with a backward pulling movement of the lever, which causes the drive wheel for that lever to first slow down, stop,...
  • Page 36 Operating Instructions The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers FORWARD SPEED RIGHT WHEEL LEFT WHEEL CONTROL LEVER (FSC) STEERING LEVER STEERING LEVER Forward Position Full Forward (No Control Change) Ground Speed Position Neutral-Park Position Intermediate Ground Speed Position...

  • Page 37: Parking Brake

    Operating Instructions Parking Brake Transmission Lockout Levers The parking brake functions by locking a pin into The transmission lockout levers disengage the the hydrostatic transmission pinion gear teeth. hydrostatic transmissions. By lifting the lever on Moving the lever FORWARD engages the parking top of the transmission and locking it into place brake;...

  • Page 38: Instrument Panel

    Operating Instructions Instrument Panel This illustration shows the configuration of the switches and indicators located on the instru- ment panel. Oil Pressure Over Temperature Ignition Warning Light Warning Light Switch Hourmeter Voltmeter Circuit Breaker - 7 Amp Light Switch Warning (Optional) Horn Instrument Panel...

  • Page 39: Voltmeter

    Operating Instructions Voltmeter Ignition Switch The voltmeter displays battery and charging sys- The ignition switch is used to start and stop the tem voltage. An indication of low or high voltage engine. The switch has three positions: “O” is the (the red area) indicates an electrical system OFF position, “I”...

  • Page 40: Circuit Breakers

    Safety Instructions and Oper- between starting attempts. Failure to follow ating Instructions. these guidelines can damage the starter motor and shorten battery life. Consult your Walker dealer or authorized Kohler dealer for addi- WARNING tional help. After the engine starts, make sure the oil pres- NEVER run the engine in an enclosed or sure light goes off.

  • Page 41: Adjusting Ground Speed And Steering

    Never operate the trac- Friction Lock on page 92 or contact your tor without a deck or implement installed. Walker dealer. Steer by pulling the lever on the side of de- Move the FSC out of NEUTRAL-PARK posi- sired direction of turn, e.g., pull the LH lever to...
  • Page 42 ♦ Remember it is not necessary to hold the steering levers forward (a unique Walker feature); always PULL on the The FSC may be adjusted forward for faster levers for steering or for reverse mo- ground speed and backward for slower ground tion of the mower.

  • Page 43: Engaging The Blade Drive

    Operating Instructions ENGAGING THE BLADE DRIVE CAUTION Set the engine throttle at about 1/3 speed. Do An operator presence switch (seat switch) not attempt to engage the blade clutch at will cause the engine to stop if the blade high engine speeds. This will drastically clutch is engaged and the operator is not in short en drive belt life.

  • Page 44: Adjusting Cutting Height

    DISENGAGED position tion of the mower. Contact your Walker (tractor not moving and blade clutch disen- dealer, or refer to Clutch Disengagement/ gaged);...

  • Page 45: Ds60-3 Cutting Height

    Operating Instructions Cutting height is adjusted by positioning the four Cutting Height (4) re tainer hitch pins in a series of six vertical Hitch Pin Release Lever Deck Lift Pedal holes on the deck support pins. Lift handles have been pro vided on each end of the deck to assist in raising the deck while positioning the hitch pins.

  • Page 46: Recommendations For Mowing

    Operating Instructions RECOMMENDATIONS FOR MOWING The mower will “freewheel” with the levers in the LOCKOUT position. The levers must be in the highest position to completely unlock the DANGER trans missions. Do not mow around overhanging tree branches or bushes at the same height as the operator’s torso and head where inad- Lockout Lever vertent contact may cause injury.
  • Page 47 Operating Instructions ● When mowing, operate the engine at full throttle for the best cutting action and perfor- Discharge mance of the grass handling system (GHS). Shield Mowing with a lower engine RPM causes the mowing blade to not cut clean and tear the grass.

  • Page 48: Recommendations For Towing

    Operating Instructions DANGER Do not mow or dump grass within 5 feet (1.5 meters) of an embankment or retaining wall with drop off. 5 FT MINIMUM No Driving Zone RECOMMENDATIONS FOR TOWING Do not move the tractor with the deck in the ●...

  • Page 49: Grass Handling System (Ghs)

    Operating Instructions GRASS HANDLING SYSTEM (GHS) GHS Model Only Grass Catcher Exhaust Screen (Removable) Grass-Pak ® Vane Switch Catcher Door Spring (Not Visible) Catcher Air Exhaust Powerfil ® Drive Motor Actuator “Full” Signal Horn Catcher Door PTO Clutch PTO and Blade Gear Drive Powerfil ®...

  • Page 50: General Information

    Operating Instructions General Information NOTE: When a side discharge or mulching mow er deck is installed on the GHS model, a blower The Grass Handling System (GHS) consists of a intake cover should be installed in the blower rear discharge mower deck connected to a 10.5 in. intake tube.

  • Page 51: Clogging Checklist

    Operating Instructions Clogging Checklist Blades Must Operate at In case of clogging, there will be a distinct change Right Angles (90 Degrees) in the sound of the blower, i.e., the blower sound will stop. Also, the mower deck will begin to leave FORWARD a trail of grass clippings.

  • Page 52: Using The Tilt-Up Deck

    Operating Instructions ● Check the interior of the chute connecting the “Full” Signal Horn mower deck to the blower for smoothness The GHS catcher has a “full” signal horn to alert and freedom from obstruction. the operator to dump the catcher when it is full Check the blower wheel for bent blades and ●...

  • Page 53: Cleaning The Ghs Exhaust Screen

    Operating Instructions Cleaning the GHS Exhaust Screen Dumping the Catcher To remove the grass catcher screen for cleaning, DANGER open the catcher door, push forward and pull down on the grass catcher screen knobs (on either side Do not mow or dump grass within 5 feet of the screen), and slide the screen out.

  • Page 54: Using The Dump Bag

    Operating Instructions Using the Dump Bag Open the back door by lifting on the door handle. Orient the dump bag with one of the handle straps on the bag opening facing up. Tailgate Door Handle Catcher Lift / Dump Handle Hook Bag on Bumper Dumping Catcher into Dump Bag...

  • Page 55: Power Dump Option

    Operating Instructions Power Dump Option Hi-Dump Option ® When equipped with the optional power dump When equipped with the optional Hi-Dump sys- ® system, the operator dumps the catcher while tem, the operator raises and dumps the catcher sitting in the seat. A toggle switch operating a while sitting in the seat.
  • Page 56 Operating Instructions NOTE: If grass tends to hang up in the catcher after raising the catcher with the Hi-Dump , “jiggle” ® the steering levers and make the tractor bounce a little to unstick the grass and make it slide out of the catcher.
  • Page 57 Operating Instructions Catcher Door Upper Catcher Door Gas Spring Grass Catcher Cable Guide Lift Channel Power Dump Ram Actuator Lower Fork Door Arm Actuator Cable Guide Cable Assembly Spring Actuator Mount Assembly Dog Leg Assembly Rubber Bumper Power Dump Components...
  • Page 58 Operating Instructions Catcher Door Upper Catcher Door Gas Spring Grass Catcher Cable Guide Lift Channel Gas Spring Assembly Lower Door Arm Actuator Cable Assembly Catcher Pivot Arm Control Dump Lift Rod Cylinder Control Hydraulic Lift Rod Hydraulic Valve Block Reservoir/Power Unit Safety Lockout Arm...

  • Page 59: Maintenance Instructions

    CAUTION Maintenance Instructions Maintenance procedures requiring special training or tools should be performed by a trained technician. MAINTENANCE SCHEDULE CHART RECOMMENDED SERVICE INTERVALS - MODEL T23 Every Ref. Service Item Daily Hours Hours Hours Hours Hours Yearly 2 Years Page...

  • Page 60: Important Tips For Care Of The Kohler Engine

    Maintenance Instructions Kohler Tips IMPORTANT TIPS FOR CARE OF THE DANGER KOHLER ENGINE Make sure to keep hands clear of exhaust Fuel System pipe, muffler, and moving parts when checking airflow. ● Fuel must be clean—free from water, dirt, and or ganic material.

  • Page 61: Lubrication

    Maintenance Instructions Lubrication ● Use only Kohler oil filters. Aftermarket filters Before removing the dipstick, clean the area may not seal properly and/or have the incor- around the dipstick to keep any dirt or debris rect pressure relief valve for proper lubrication. out of the engine.

  • Page 62: Changing Engine Crankcase Oil/Oil Filter

    Maintenance Instructions Lubrication Changing Engine Crankcase Oil/Oil Filter Before removing the oil filter, clean the area around the filter to keep dirt and debris out of Change the engine crankcase oil and filter every the engine. 300 hours if the recommended Kohler PRO prod- ®...

  • Page 63: Mower Deck Gearbox Lubrication

    Maintenance Instructions Lubrication Mower Deck Gearbox Lubrication NOTE: In case the gearboxes are completely drained of oil, approximately 5 fl. oz. (15 cl) of NOTE: These instructions apply to all mower oil per gearbox is required to refill the gear decks with gear-driven blades.

  • Page 64: Mower Deck Spindle Lubrication

    Maintenance Instructions Lubrication Belt Drive Dipstick Gearbox Jackshaft Dolly Wheel Pivot U-Joints Gearbox, Dolly Wheel, and U-Joint Lubrication Vent Plug Mower Deck Spindle Lubrication Gearbox For mower decks with belt-driven blades, lubricate each deck spindle grease fitting every 25 hours. Use SAE general purpose lithium or molybdenum base grease for grease fittings.

  • Page 65: Gear Axle Lubrication

    Maintenance Instructions Lubrication Gear Axle Lubrication ● The gear axle oil lubrication is SAE E.P. 80W-90 (API GL-5) gear lube. ● Check the axle oil level after every 100 hours of operation by removing the oil level plug. If additional oil is needed, remove the breather vent on top of ax le and fill until oil is at the level plug.
  • Page 66 Maintenance Instructions Lubrication Ident Lubrication Ident Lubrication Location Type Places Location Type Places Deck Caster Wheel Fork Pivot Grease Brake Actuator Rod and Brake Deck Caster Wheel Bearing Grease Band Pivot Pins (Clevis) Δ Blade Spindle Grease Brake Actuator Pivot Grease Pivot Assembly, Tilt-Up Deck Grease...
  • Page 67 Maintenance Instructions Lubrication 30 & 40 33 & 39 Chassis and Deck Lubrication Points (DC42 Shown)

  • Page 68: Hydrostatic Transmission Oil

    Walker Dealer at the recommended intervals using only Walker approved oil and filters. Proof of Drain the oil from each transmission through meeting these service requirements must be sub-...
  • Page 69 3/4 turn. Do not over-tighten. NOTE: Use ONLY a Walker filter (P/N 5024- 13). Reconnect the lines between the oil pump and the transmissions at the elbow connectors.

  • Page 70: Cleaning

    Maintenance Instructions Cleaning CLEANING Turbine Precleaner The turbine precleaner is mounted on a remote air intake tube connected to the Donaldson air clean- CAUTION er. A spinning fan driven by the intake airflow separates dust from the air, giving the initial stage If a pressure washer is used on the ex- of air clean ing.

  • Page 71: Donaldson Radialseal™ Air Cleaner

    (Donaldson P822686 or safety filter yearly (or when dirty or damaged). Walker 5090-1). Aftermarket filters may not seal More frequent replacement may be required when properly or filter efficiently.
  • Page 72 Maintenance Instructions Cleaning NOTE: Use care when cleaning the filter IMPORTANT: DO NOT use the cover latch- element. The filter element and/or seal sur- es to force the filter into the canister–the cover face may be damaged by tapping too hard or should fit on with no extra force.

  • Page 73: Engine Cooling System

    Maintenance Instructions Cleaning Engine Cooling System CAUTION Cooling Air Intake Screen DO NOT use a pressure washer to clean the To prevent engine overheating and possible engine cooling system on an air-cooled engine; damage, clean grass clippings, chaff, and dirt from mud may form under the cooling shroud on the rotating engine cooling air intake screen after the cylinder head and cooling fan resulting...

  • Page 74: Grass Buildup In Mower Deck Housing

    Maintenance Instructions Cleaning Grass Buildup in Mower Deck Housing NOTE: While some degree of material build- up in the mower deck housing can be toler- ated, a point is finally reached where cutting DANGER quality deteriorates and clogging begins to occur because of too much buildup on the Before raising or removing the mower deck baffling and housing.

  • Page 75: Ghs Exhaust Screen

    Maintenance Instructions Cleaning Hydrostatic Transmission Cooling Fins Keeping the cooling fins on the hydrostatic trans- GHS Blower Blower missions clean and free of obstruction is essential Drive Belt Pulley Blower to avoid overheating the transmission fluid and Drive Pulley short ening transmission life. The cooling fins should be checked every 100 hours and cleaned if neces sary.

  • Page 76: Checking/Servicing

    Maintenance Instructions Checking and Servicing CHECKING/SERVICING CAUTION DANGER Important Battery Service, Installation, and Charging Tips: To prevent accidental starting of the en gine when servicing or adjusting the ma chine, ● Do not allow the battery cables to touch remove the key from the ignition switch opposing terminals.

  • Page 77: Charging The Battery

    Maintenance Instructions Checking and Servicing Sharpen Mower Blades Charging the Battery Check mower blade(s) for straightness, sharp- DANGER ness, condition of the cutting edge, and bal- ance every 10 hours of operation (or more often BATTERIES PRODUCE EXPLOSIVE GASES when mowing abrasive type grass or operating on sandy soils).

  • Page 78: Drive Belts

    Maintenance Instructions Checking and Servicing If the blade cutting edge is dull or nicked, it should be sharpened. Remove blades for sharpening by grasping the end of the blade using a rag or a thick, padded glove, while loosening and removing the nut, lock washer, and flat washer that mount the blade.

  • Page 79: Mower Deck Gearbox Oil Seals

    Con- the solenoid shift starter. Refer to the Kohler Ser- tact your Walker dealer for this service or refer to vice Manual for this procedure or contact an autho- Adjustments for Clutch Disengagement/Brake rized Kohler engine dealer to perform this service.

  • Page 80: Pto U-Joints

    Forward Speed Control Friction Lock on page If any of the following conditions occur during starting or operating, a safety interlock switch may be malfunctioning. Contact your Walker dealer for troubleshooting and/or replacement. ● With or without an operator in the seat, the...

  • Page 81: Replacing/Repairing

    Maintenance Instructions Replacing and Repairing REPLACING/REPAIRING Drive Belts There are four (4) individual belts on GHS mod- DANGER els or three (3) belts on SD models: To prevent accidental starting of the engine ● Jackshaft Drive Belt when replacing parts or repairing the ma- ●...

  • Page 82: Engine Pto Drive Belt

    Maintenance Instructions Replacing and Repairing Engine PTO Drive Belt (3 Groove Power Band) c. Raise the clutch lever (engage position) to lift the clutch idler away from the belt. To remove the engine PTO drive belt: d. Next remove the belt from the engine a.

  • Page 83: Jackshaft Drive Belt

    Maintenance Instructions Replacing and Repairing Jackshaft Drive Belt b. Relax the belt by depressing the spring- loaded idler arm. To remove the jackshaft drive belt: c. Roll the belt off the jackshaft pulley and a. Remove the engine PTO drive belt, as remove.

  • Page 84: Ghs Blower Drive Belt

    Maintenance Instructions Replacing and Repairing GHS Blower Drive Belt Remove the GHS blower drive belt tension by depressing the idler pulley on the tightener arm. Roll the belt off the blower pulley. Blower Drive GHS Blower Pulley Drive Belt Blower Pulley Depress Idler Pulley Down to Relax Belt...

  • Page 85: Hydrostatic Ground Drive Belt

    Maintenance Instructions Replacing and Repairing Hydrostatic Ground Drive Belt b. Slide belt off pulleys, then release the idler. To remove the hydrostatic ground drive belt: a. Raise the spring-loaded belt tightener arm and idler pulley to relax belt. Belt Tightener Arm Jackshaft Transmission Idler Pulley...

  • Page 86: Deck Drive Belt (Optional Ds60-3 Deck)

    Maintenance Instructions Replacing and Repairing Deck Drive Belt (Optional DS60-3 Deck) To install the deck drive belt: To remove the deck drive belt: a. Install and route the belt as shown on the belt routing decal (located on the deck a.

  • Page 87: Fuel Filter

    ● Wipe up spilled gasoline immediately and completely. Cutting Blade Model T23 is equipped with an in-line fuel filter. Shear Bolts Visually inspect the filter periodically, and replace the filter yearly. Cutting Blade Shear Bolts...

  • Page 88: Mower Blades

    Sharpen Mower Blades on page 73. If blades ● An excessive amount of the flat section of the are replaced, always use Walker original equip- blade has been ground away (removed) when ment blades to ensure safety and optimum perfor- the blade is sharpened.

  • Page 89: Adjustments

    Maintenance Instructions Adjustments ADJUSTMENTS Levers should sit Transmission Control parallel to each other The following instructions reflect the most current transmission linkage configuration with a spring/ dampener connected to the steering lever (starting S/N 11-109716) and the FSC using direct linkage instead of a sliding fork disconnect (starting S/N 15-134121).

  • Page 90: Set Maximum Forward Travel Speed (Stop)

    Maintenance Instructions Adjustments Steering Lever Actuator Arms Forward Travel Stop Bolt Steering Adjustment Nut Transmission Forward Speed Control Stop and Control Arm Steering Lever Adjustment Tighten the jam nut on the forward travel stop Jam Nut Adjustment adjusting bolt. Control Set Maximum Forward Travel Speed (Stop) - Step 3 Transmission Control Rod and Arm Location...

  • Page 91: Straight Ground Travel Adjustment

    Maintenance Instructions Adjustments Start the engine (operate first at idle and then adjust has not been made. (This is covered normal operating speeds) and check for by the Straight Ground Travel Adjustment movement of the drive wheels. - Step 5 on this page.) In this case, the neu- tral adjustment should be made for one wheel NOTE: If the engine will not start, check the stationary and the other moving forward...

  • Page 92: Blade Clutch (Pto)

    Maintenance Instructions Adjustments Blade Clutch (PTO) Adjust the bolt head clearance [1/4 to 3/8 in. (6.35 to 9.53 mm)] first (clutch engaged), then adjust Clutch Engagement/Belt Tension uncompressed spring length (clutch disengaged). The spring must be adjusted to an uncompressed The clutch engagement and PTO belt tension are overall length of 2-1/8 in.

  • Page 93: Clutch Disengagement/Brake Action

    Maintenance Instructions Adjustments Clutch Disengagement/Brake Action The declutched or disengaged position of the blade clutch idler pulley is adjustable and is set to give belt release without excessive slack and to WARNING apply the blade brake. The blade brake is activat- ed by the brake actuator rod linkage to the clutch It is important to check and maintain blade idler pulley mechanism.

  • Page 94: Stop Block Eccentric Adjustment

    Maintenance Instructions Adjustments Use the following procedure to check and adjust Clutch Idler Pulley Travel Adjustment - Step 2 clutch disengagement and brake action: Adjust the stop block to give 1 to 1-1/2 in. (25 to 38 mm) pulley travel from “clutch engaged” to “clutch Stop Block Eccentric Adjustment - Step 1 disengaged”.

  • Page 95: Blade Brake Band Adjustment

    Maintenance Instructions Adjustments Blade Brake Band Adjustment - Step 3 NOTE: The length of the actuator rod is adjusted by disconnecting the bottom clevis and shortening After the pulley travel is set, make the following or lengthening accordingly. The standard pre-set adjustment as needed: length of the actuator rod is set at the factory at 8-1/4 in.

  • Page 96: Forward Speed Control Friction Lock

    Maintenance Instructions Adjustments Forward Speed Control Friction Lock The FSC friction lock is adjusted to hold the FSC Full selected forward speed when the steering levers Forward Position are moved. The friction should not be so heavy as to make moving the FSC difficult (too much friction).

  • Page 97: Steering Handles

    Maintenance Instructions Adjustments Steering Handles Tilt-Up Deck Adjustable Stop* An adjustment range of approximately 3 in. (76 When the carrier frame hinge joint is properly mm) is available on the steering handles—the adjusted, the deck lock levers should move in and handles can be adjusted forward or aft depending out of the engaged and disengaged positions on the arm length of the operator.

  • Page 98: Ghs "Full" Signal Horn Adjustment

    Maintenance Instructions Adjustments GHS “Full” Signal Horn Adjustment Exhaust The vertical position of the Grass-Pak switch is ® Screen 4 to 4-1/2 in. critical to make sure the catcher box does not (10 to 11.5 cm) overfill causing the delivery chute to clog. The vertical position can be adjusted by moving the aluminum shaft and vane on the Grass-Pak ®...
  • Page 99 (2) years* after the date of sale to the original retail purchaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days. At Walker’s request, customer will make the defective part available for inspection by Walker and/or return the defective part to Walker, transportation charges prepaid.
  • Page 100 WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 FORM NO. 010523 PRINTED IN USA www.walker.com ©2023 WALKER MFG. CO...

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