Walker T Series Operator's Manual Safety, Assembly, Operating, And Maintenance Instructions

Walker T Series Operator's Manual Safety, Assembly, Operating, And Maintenance Instructions

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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: 134970
Instructions Prior to Operating Machine
P/N 8000-28

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Table of Contents
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Summary of Contents for Walker T Series

  • 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: 134970 Instructions Prior to Operating Machine P/N 8000-28...
  • 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 custom- ers. 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 Operating Instructions ________________ 1 _____________ 29 HIGHLIGHTED INFORMATION _____________ 1 CONTROL IDENTIFICATION, GLOSSARY ____________________________ 1 LOCATION, AND FUNCTION _____________ 29 IDENTIFYING NUMBER LOCATIONS ________ 1 Operating Controls ____________________ 29 ENGINE SERIAL NUMBER LOCATION _______ 2 Engine Throttle ______________________ 29 SERVICING OF ENGINE AND Forward Speed Control (FSC) __________ 30...
  • Page 4 Table of Contents Maintenance Instructions Transmission Control Setting ___________ 76 __________ 57 Neutral-Park ________________________ 76 MAINTENANCE SCHEDULE CHART _______ 57 Straight Ground Tracking ______________ 76 IMPORTANT TIPS FOR CARE Radiator Hoses and Clamps ____________ 76 OF THE KOHLER ENGINE ________________ 58 Blade Brake Action ____________________ 76 Fuel System _________________________ 58 PTO U-Joints ________________________ 76...
  • Page 5: General Information

    ● POWERFIL ® spreads the mowed material tion or maintenance of a Walker Mower are caused throughout the interior of the grass catcher by by disregarding basic safety precautions or specific an oscillating delivery spout. warnings. Such accidents, in most cases, can be prevented by being aware of the dangers present.
  • Page 6: Engine Serial Number Location

    If you have any difficulty finding an authorized outlet or obtaining warranty service, please contact our Service Department for assis- Tractor Serial Number Location tance: Walker Manufacturing Company Serial Number 5925 E. Harmony Road Fort Collins, CO 80528 1-970-221-5614 www.walkermowers.com...
  • 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, 41AH, 340 CCA (Interstate U1-SP40) Charging System Flywheel Alternator 25 Amp DC (Regulated)
  • Page 8: Transmission

    Specifications MODEL T30i TRANSMISSION Manufacturer/Model Dual Hydrostatic, Eaton Model 7, Each Wheel Independently Driven Steering Hand Lever Control / Individual Wheel Forward Speed Control Precision Friction Lock Lever, Cruise Control, with Neutral-Park Position Service Brake Dynamic Braking through Hydrostatic Transmission Parking Brake Mechanical Pin Lock in Transmission Gear Neutral...
  • Page 9: Dimensions (Tractor And Mower)

    Specifications MODEL T30i DIMENSIONS (Tractor and Mower) Length in. (cm) Tractor Only 64.25 (164) Tractor Wheel Base 41 (104) 77 (196) Tractor with Tilted Deck (Approximate) 93 (236) Tractor with 48" Collection Deck (DC48-1) Width in. (cm) Tractor Only (Outside Tire) 39 (99) Tractor with 48"...
  • Page 10: Mower Deck

    1.5 to 4.5 in. (4 to 11.5 cm) (DS52 & DS62 Belt Driven Decks Only) Deck Suspension Independent Torsion-Flex Frame with Caster Wheels and Counterweight Springs 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)
  • Page 11: Component Identification

    Component Identification NOTE: Control Identification shown in Operating Instructions section. Grass Handling System Turbine 10.0 Bushel Catcher Precleaner Tilt-Up Latch Spring Clip Counterweight Spring and Protective Cover Transmission Control Rod Adjustment Nuts Deck Support Pins and Height Adjustment Anti-Scuff Hitch Pins Roller Catcher Lift / Dump Handle...
  • 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 Dump Instrument Panel Box Plate (Shock Mounted) Anti-Scuff Roller Catcher Door Handle Radiator Muffler...
  • Page 13 Component Identification High Speed Fuel Filter Air Intake Exhaust Grass Radiator Fan Switch (Not Visible) Plenum Shield Muffler Air Cleaner Cover Donaldson Air Cleaner Radiator Hose to Coolant Recovery Tank Recovery Coolant Tank Radiator Cap Overflow Hose Throttle Linkage Air Filter (Not Visible) Restriction Gauge Exhaust Pipe...
  • Page 14: Safety Instructions

    Manufacturing must take full responsibility for safety. comply with safety instructions may result in per- sonal injury. The Walker Rider Lawnmower has been designed with many safety features to protect the operator The seriousness or degree of importance of each from personal harm or injury.
  • Page 15 Safety Instructions - Before Operating Do not wear loose fitting clothing that could get 10. Handle gasoline with care. Gasoline is highly caught in moving parts. Do not operate this ma- flammable and its vapors are explosive: chine while wearing shorts; always wear ade- Use an approved fuel container.
  • Page 16: Operating

    Safety Instructions - Operating Operate the mower only in daylight or in Do not operate machine if the operator pres- good artificial light with good visibility of the area ence safety switch system is not working. being mowed. Verify proper operation by having the operator lift off the seat with the engine running and mov- Sit on the seat when starting the engine and ing two controls, one at a time;...
  • Page 17 Safety Instructions - Operating 14. The maximum recommended slope operat- 20. In case of a clogged or plugged mower deck or GHS catching system: ing angle is 15 degrees or 26% grade. When operating the machine on a slope, reduce speed Disengage the blade clutch (PTO), engage and use caution to start, stop, and maneuver.
  • Page 18: Maintenance

    For ser- vice of the pressurized fuel system, including the fuel pump module, fuel lines, and fuel injectors, contact your Walker dealer or autho- rized Kohler service dealer. Altering the equipment or engine in any manner...
  • 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. 8600-28 Location: Each End of Mower Deck Location: Precleaner Tube...
  • 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: Hydrostat Oil Reservoir 8600-23 Location: Right Side, Behind Operator Seat...
  • 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

    SETUP INSTRUCTIONS Raise front mower body up for battery access (refer to Front Body Latch Release in Operating Instruc­ Walker Mowers are shipped partially assembled to tions). Check the battery for electrolyte level and our distribution network, and are typically assem- charge.
  • Page 24: Dry Battery Service

    Assembly Instructions Dry Battery Service Battery Charging DANGER DANGER BATTERIES PRODUCE EXPLOSIVE GASES Activating a battery can be dangerous. The battery should be taken to a reliable ● Charge the battery in a well-ventilated service station, battery store, or power area, so that gases produced while charg- equipment dealer where a trained techni- ing can dissipate.
  • Page 25: Battery Installation

    Assembly Instructions Battery Installation Tighten the bolt and nut until the inner bearing race bottoms against the inside of the wheel IMPORTANT: Make sure battery is securely mount- fork (will not turn) while the wheel spins freely ed in the frame. A loose battery may cause damage without binding.
  • Page 26: Deck Discharge Deflector Shield Installation

    Assembly Instructions Deck Discharge Deflector Shield Installation Tilt-Up Roller Wheel Installation (Side Discharge Models Only) Mount the two (2) tilt-up roller wheels on the brack- Attach the side discharge deflector shield using two ets on the rear skirt of the deck housing using the (2) 3/8-16 x 1-1/4 in.
  • Page 27: Mower Deck Installation On Tractor

    Assembly Instructions Mower Deck Installation on Tractor Grease Deck Support Arms Deck Installation Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation PTO Connection photo for location of deck support arm. Deck Support Arms Arrows on Shaft and Tube (Used to Align When Sliding Together) PTO Shaft Connection...
  • Page 28 Assembly Instructions Internal Balls PTO Drive Locked on Shaft Shaft Spring Tension Adjustment Nut Located Under Lower Spring Hook (Not Visible) Hitch Pins Lock Deck on Support Arms PTO Coupler Coupler Ring in U-Joint Locked Position Quick Disconnect Ring “Locked” Position Slide the deck the rest of the way on the deck Counterweight Springs arms.
  • 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, shimming The machine must be shut off during this should be required to level the deck. Tire pressure procedure. will influence the levelness of the deck.
  • Page 30: Preoperating Checklist

    Assembly Instructions PREOPERATING CHECKLIST alcohol. CHECK ENGINE CRANKCASE OIL LEVEL Before operating the mower for the first time, and as a routine before daily operations, it is important to Check the engine crankcase oil level before use and make sure the mower is properly prepared and after each 8 hours of continuous operation.
  • Page 31 Assembly Instructions CHECK HYDROSTATIC TRANSMISSION OIL Tilt-Up Handle Tilt-Up Hook and LEVEL Latch Connected Refer to LUBRICATION for Checking Hydrostatic Transmission Fluid Level in Maintenance Instruc­ tions. CHECK FUNCTIONS OF INSTRUMENT PAN- Tilt-Up EL AND WARNING HORN Latch Deck Lock Turn the ignition key to the ON (RUN) position.
  • Page 32 Assembly Instructions ADJUST MOWER CUTTING HEIGHT, IF RE- QUIRED Position the hitch pins in the four deck support pins. Refer to the “Cutting Height Adjustment” decal on the deck gearbox cover. CHECK SECURITY OF DRIVE WHEEL BOLTS The eight (8) lug bolts mounting the drive tires should ·...
  • Page 33: Operating Instructions

    Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND Engine Throttle FUNCTION The throttle control lever (red knob) is located on the Operating Controls left side of the seat and is used to control engine speed. Moving the lever forward toward the FAST position increases engine speed;...
  • Page 34: Forward Speed Control (Fsc)

    Operating Instructions Forward Speed Control (FSC) Parking Brake Forward Speed Control (FSC) has two functions: The parking brake functions by locking a pin into the One is to set forward travel speed, and the other is hydrostatic transmission pinion gear teeth. Moving to establish the NEUTRAL-PARK position.
  • Page 35 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 36: Front Body Latch Release

    Operating Instructions Front Body Latch Release Transmission Lockout Levers The front portion of the tractor body hinges forward The transmission lockout levers disengage the hy- for maintenance access and is latched down in the drostatic transmissions. By lifting the lever on top OPERATING position.
  • Page 37: Suspension Seat

    Walker dealer immediately to ar- range for repairs to be carried out. If you fail to do When you have set the weight, fold the handle com- so, your health may be affected and the risk of ac- pletely into the locking position.
  • Page 38 Operating Instructions For Backrest adjustment, moving the adjustment For adjusting the height of the armrest, pry out the handle upwards loosens the notching of the back- round cap (arrow) of the cover and loosen the hexa- rest adjustment. Refer to Figure 3. gon nut (size 13mm) situated behind it.
  • Page 39: Instrument Panel

    Operating Instructions Instrument Panel This illustration shows the configuration of the switches and indicators located on the instrument panel. Water Temperature Warning Light Water Oil Pressure Engine Service Temperature Voltmeter Warning Light Light Gauge Ignition Switch Circuit Breaker - 10 Amp Light Switch Warning (Optional)
  • Page 40: Hourmeter

    *** In normal operating conditions, oil changes in If this light comes on, there may be a problem with: 100-hour intervals are acceptable. Walker and the engine manufacturers recommend engine ● Radiator cooling air flow (material packed into...
  • Page 41: Water Temperature Warning Light/Horn

    Operating Instructions Water Temperature Gauge The water temperature gauge monitors engine cooling system temperature. If engine coolant ON (RUN) temperature exceeds 230° F (110° C), an overheat condition exists; the water temperature light will come on and the warning horn will sound. WARNING If engine cooling system overheating is in- dicated, continued operation of the engine,...
  • Page 42: Starting The Engine

    Operating Instructions STARTING THE ENGINE damage the starter motor and shorten battery life. Consult your Walker dealer or authorized Kohler dealer for additional help. CAUTION After the engine starts, make sure the oil pres- sure light goes off. If not, stop the engine im- Before operating the mower, read and un- mediately and find the cause of the problem.
  • Page 43 When the machine is stopped or ♦ Remember it is not necessary to hold the moving slowly, engage the parking brake. steering levers forward (a unique Walker feature); always PULL on the levers for steering or for reverse motion of the mower.
  • Page 44: Engaging The Blade Drive

    PARK position, the transmission control needs to be adjusted. Refer to ADJUSTMENTS for Transmission Control and Neutral Function Adjustment in Maintenance Instructions or con- tact your Walker dealer. Forward Speed Control ENGAGING THE BLADE DRIVE (FSC) Keep Feet On Footrest Set the engine throttle at about 1/3 speed.
  • Page 45: Stopping The Machine

    If the brake sys- tem malfunctions and the blades do not stop within five (5) seconds, the brake should be adjusted or repaired before op- erating the mower. Contact your Walker dealer, or refer to ADJUSTMENTS of Clutch Disengagement/Brake Action in Maintenance Instructions.
  • Page 46: Adjusting Cutting Height

    Operating Instructions Slow the engine to idle, put throttle in IDLE posi- ADJUSTING CUTTING HEIGHT tion; turn the ignition switch OFF. WARNING WARNING The engine must be stopped before ad- Remove the key from the ignition switch justing cutting height. Disengage the blade when leaving the mower unattended.
  • Page 47: Recommendations For Mowing

    Operating Instructions The mower will “freewheel” with the levers in the RECOMMENDATIONS FOR MOWING LOCKOUT position. The levers must be in the highest position to completely unlock the trans- DANGER missions. Do not mow around overhanging tree Lockout Lever branches or bushes at the same height as the operator’s torso and head where inad- vertent contact may cause injury.
  • Page 48 Operating Instructions ● When mowing, operate the engine at full throt- tle for the best cutting action and performance of the Discharge grass handling system (GHS). Mowing with a lower Shield engine RPM causes the mowing blade to not cut clean and tear the grass.
  • Page 49 Operating Instructions Maximum Recommended Slope - Do Not Operate on Steep Slopes 16 in. 15° 52 in. Maximum Recommended Slope 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...
  • Page 50: Recommendations For Tilt-Up Deck Operation/Transport

    Operating Instructions RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT To avoid potential deck and/or tractor damage while using the tilt-up deck, the following recommenda- tions are offered: ● Do not move the tractor with the deck in the tilt-up position since both the roller wheels (on the back of the deck) and the GHS discharge chute may be damaged by moving the tractor.
  • Page 51: Grass Handling System (Ghs)

    Operating Instructions GRASS HANDLING SYSTEM (GHS) GHS Model Only Grass Catcher Exhaust Screen ® Grass-Pak (Removable) Vane Switch Catcher Door Spring (Not Visible) Catcher Air Exhaust ® Powerfil Drive Motor Actuator “Full” Signal Horn Catcher Door PTO Clutch ® Powerfil PTO and Blade Delivery Spout Gear Drive...
  • Page 52: General Information

    Operating Instructions General Information NOTE: When a side discharge or mulching mow er deck is installed on the GHS model, a blower intake The Grass Handling System (GHS) consists of a cover should be installed in the blower intake tube. rear discharge mower deck connected to a 10.5 in.
  • Page 53: Clogging Checklist

    Operating Instructions Clogging Checklist Blades Must Operate at Right Angles (90 Degrees) In case of clogging, there will be a distinct change in the sound of the blower, i.e., the blower sound FORWARD will stop. Also, the mower deck will begin to leave a trail of grass clippings.
  • Page 54: Using The Tilt-Up Deck

    Operating Instructions ● Check the blower wheel for bent blades and “Full” Signal Horn excessive clearance between the blade tip and the The GHS catcher has a “full” signal horn to alert blower housing. A clearance greater than the operator to dump the catcher when it is full (to 1/8 in.
  • Page 55: Cleaning The Ghs Exhaust Screen

    Operating Instructions Cleaning the GHS Exhaust Screen CAUTION To remove the grass catcher screen for cleaning, open the catcher door, push forward and pull down Use leg muscles and firm footing when lift- on the grass catcher screen knobs (on either side of ing the catcher to dump;...
  • Page 56: 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 57: Power Dump Option

    Operating Instructions Power Dump Option Hi-Dump Option ® When equipped with the optional power dump sys- When equipped with the optional Hi-Dump system, ® tem, the operator dumps the catcher while sitting in the operator raises and dumps the catcher while sit- the seat.
  • Page 58 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 59 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 60 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 Lift Rod Dump Cylinder Control Hydraulic Lift Rod Hydraulic Valve Block Reservoir/Power Unit Safety Lockout Arm...
  • Page 61: Maintenance Instructions

    Δ Change every 2 years or 1000 hours ΔΔ ΔΔΔ See your Walker dealer for this service or refer to the Walker Service Manual ◊ Hydrostatic transmissions are sealed - DO NOT OPEN RESERVOIR CAPS - refer to Checking Hydrostatic...
  • Page 62: Important Tips For Care Of The Kohler Engine

    The fuel injection system is pressurized. Do not ing instructions). attempt to service this fuel system. Contact your Walker dealer or authorized Kohler service dealer ● Use the air filter restriction gauge to indicate the for work on the fuel system.
  • Page 63: Lubrication

    Maintenance Instructions LUBRICATION LUBRICATION IMPORTANT: DO NOT operate engine without a sufficient oil supply in the crankcase. DO NOT operate with the oil level below the “L” mark or WARNING above the “F” mark on the dipstick. If additional oil is needed, refer to Specifications DO NOT attempt to lubricate the machine for proper crankcase lubricant.
  • Page 64: Changing Engine Crankcase Oil/Oil Filter

    Maintenance Instructions LUBRICATION Changing Engine Crankcase Oil/Oil Filter Reinstall the drain plug. Make sure it is tight- · · ened to 10 lb ft (14 N Change the engine crankcase oil after every 100 hours of operation and replace the oil filter every Fill the crankcase through the oil filler tube (dip- other oil change (every 200 hours of operation).
  • Page 65: Ds52 Or Ds62 Mower Deck Lubrication

    Maintenance Instructions LUBRICATION DS52 or DS62 Mower Deck Lubrication Blade Drive Gearboxes There are several special lubrication requirements for the DS52 or DS62 mower deck in addition to the require ments detailed in the Chassis and Deck Lubrica tion Points illustration. Lubricate the loca- tions shown in the Gearbox, Dol ly Wheel, and U-Joint Lubrication photo and check and maintain oil in the belt drive gearbox.
  • Page 66: Tractor Pto Gearbox Lubrication

    Maintenance Instructions LUBRICATION Tractor PTO Gearbox Lubrication Changing Gearbox Oil The tractor PTO gearbox is oil filled. No scheduled Checking Gearbox Oil Level oil change is required. However, changing the oil Check the gearbox oil level every 25 hours, and if af ter the first 100 hour break-in period will extend necessary, add oil [SAE E.P.
  • Page 67: Gear Axle Lubrication

    The hydrostatic transmissions are sealed units need to be serviced by an authorized Walker dealer. and do not need to be opened to check the fluid When a transmission is found to be low on oil, it is level.
  • Page 68 Maintenance Instructions LUBRICATION Ident Lubrication Ident Lubrication Location Type Places Location Type Places Deck Caster Wheel Fork Pivot Grease Belt Tightener Pivot, Grease Deck Caster Wheel Bearing Grease PTO Clutch Δ Blade Spindle Grease Brake Actuator Rod and Brake Pivot Assembly, Tilt-Up Deck Grease Band Pivot Pins (Clevis) Deck Support Arm Socket...
  • Page 69 Maintenance Instructions LUBRICATION 29 & 38 Chassis and Deck Lubrication Points (DC42 Shown)
  • Page 70: Cleaning

    Maintenance Instructions CLEANING CLEANING Turbine Precleaner The turbine precleaner is mounted on a remote air CAUTION intake tube connected to the Donaldson air cleaner. A spinning fan driven by the intake airflow separates dust from the air, giving the initial stage of air clean- If a pressure washer is used on the ex- ing.
  • Page 71: Donaldson Radialseal™ Air Cleaner

    Inspect the paper element after every 100 hours of ments for replacement (Donaldson P822686 or service and replace the element and safety filter Walker 5090-1). Aftermarket filters may not seal yearly (or when dirty or damaged). More frequent properly or filter efficiently.
  • Page 72 Maintenance Instructions CLEANING NOTE: Use care when cleaning the filter ele- NOTE: DO NOT use petroleum based lubri- ment. The filter element and/or seal surface cants on the sealing surfaces of the filter; use may be damaged by tapping too hard or hitting tal cum powder or dry silicone lubricants if re- on an uneven surface or sharp edge.
  • Page 73: Engine Cooling System

    Maintenance Instructions CLEANING Engine Cooling System Flushing Radiator and Changing Coolant Radiator Screen and Cooling Fins Change engine coolant every year. Drain the cool- ant from the engine and radiator: To prevent the engine from overheating and possi- ble engine damage, clean grass clippings, chaff, Remove the radiator cap.
  • Page 74: Ghs Blower

    Maintenance Instructions CLEANING Using the carrier frame lift handle, raise deck to GHS Blower the TILT-UP position and insert the deck hook Normally, the GHS blower operates with no mainte- into the tilt-up latch on the tractor body. nance or cleaning. However, when mowing grass that is dirty and damp (especially springtime mow- Tilt-Up Handle Tilt-Up Hook and...
  • Page 75: Ghs Exhaust Screen

    Maintenance Instructions CLEANING IMPORTANT: In case an oil leak develops on the input shaft, the cooling fan blowing dusty air and oil GHS Blower Blower on the transmission will quickly pack the cooling Drive Belt Pulley Blower fins with oily dirt. If this condition occurs, replace Drive Pulley the seal immediately to avoid overheating and dam- aging the transmission.
  • Page 76: Checking/Servicing

    Maintenance Instructions CHECKING/SERVICING CHECKING/SERVICING If the coolant level is low, remove the radiator cap and fill to the overflow port level and then fill the re- covery tank above the LOW mark. Use a pre-mixed DANGER 50/50 solution of antifreeze (ethylene glycol) and distilled water to fill the cooling system.
  • Page 77: Battery

    Maintenance Instructions CHECKING/SERVICING Battery IMPORTANT: DO NOT overfill the battery. Electro- lyte will overflow through the vented caps onto parts NOTE: For initial battery service during setup, re fer of the machine and WILL result in severe corrosion. to Battery Service in Assembly Instructions. Cleaning the Terminals IMPORTANT: Make sure battery is securely mount- If battery terminals are corroded, remove battery...
  • Page 78: Tire Pressure

    Maintenance Instructions CHECKING/SERVICING Tire Pressure Check the blades for straightness by marking the blade tip position inside the deck housing, Inflate tires to pressures shown below: and then rotating the opposite end of the blade to the same position and comparing. If the dif- Deck Caster Wheel* = 20 PSI (137 kPa) ference in blade tip track is more than 1/8 in.
  • Page 79: Drive Belts

    LH and RH blades must not be switched. NOTE: The engine fuel injection system is pressur- ized and should be serviced by a Walker dealer or Check for proper blade rotation before installing blades on the deck. Refer to Blade Rotation authorized Kohler engine service outlet.
  • Page 80: Transmission Control Setting

    (5) seconds - adjust or repair the brake before joint or other line on the ground for reference). If the operating the mower. Contact your Walker dealer machine is drifting to the right or left, refer to for this service or refer to ADJUSTMENTS for Clutch...
  • Page 81: Safety Switch System

    FSC lever should move back with a slight ing or operating, a safety interlock switch may be amount of resistance (friction). If the FSC lever malfunctioning. Contact your Walker dealer for trou- movement is “stiff”, the friction needs to be bleshooting and/or replacement.
  • Page 82: Replacing/Repairing

    Maintenance Instructions REPLACING/REPAIRING REPLACING/REPAIRING Drive Belts There are four (4) individual belts on GHS models DANGER or three (3) belts on SD models: To prevent accidental starting of the en- ● Jackshaft Drive Belt gine when replacing parts or repairing the ●...
  • Page 83: Engine Pto Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Raise the clutch lever (engage position) to Engine PTO Drive Belt (3 Groove Power Band) lift the clutch idler away from the belt. To remove the engine PTO drive belt: Next remove the belt from the engine pulley Remove the jackshaft drive belt from its and then the PTO drive pulley.
  • Page 84: Jackshaft Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Jackshaft Drive Belt Relax the belt by depressing the spring- To remove the jackshaft drive belt: loaded idler arm. Remove the engine PTO drive belt, as Roll the belt off the jackshaft pulley and described in previous section. remove.
  • Page 85: Ghs Blower Drive Belt

    Maintenance Instructions REPLACING/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 Belt Tightener Idler Pulley...
  • Page 86: Hydrostatic Ground Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Hydrostatic Ground Drive Belt To remove the hydrostatic ground drive belt: Slide belt off pulleys, then release the idler. Raise the spring-loaded belt tightener arm and idler pulley to relax belt. Jackshaft Belt Tightener Arm Idler Pulley Transmission Drive Pulley Spring...
  • Page 87: Fuel Filter

    Because the T30i has a pressurized fuel system, fuel filter re- Cutting Blade placement should be done by a Walker dealer or Shear Bolts authorized Kohler service dealer. Cutting Blade Shear Bolts In-Line...
  • Page 88: Mower Blades

    Blades instruction in this section. If blades are ● An excessive amount of the flat section of the replaced, always use Walker original equipment blade has been ground away (removed) when the blades to ensure safety and optimum performance.
  • Page 89: Adjustments

    Maintenance Instructions ADJUSTMENTS ADJUSTMENTS Set FSC Travel Limits (Stop) - Step 1 Transmission Control The following instructions reflect the most current transmission linkage configuration with a spring/ dampener connected to the steering lever and the FSC using direct linkage instead of a sliding fork disconnect (starting S/N 15-134121).
  • Page 90: Set Maximum Forward

    Maintenance Instructions ADJUSTMENTS Set Maximum Forward Travel Speed (Stop) - Step 2 Position the FSC lever to the most FORWARD position. Turn the steering lever adjustment nut(s) until Control 2 or 3 threads are showing past the end of the nut.
  • Page 91: Straight Ground Travel Adjustment

    Maintenance Instructions ADJUSTMENTS Straight Ground Travel Adjustment - Step 4 Sit in the seat, start the engine (operate at normal speed), and with the FSC in the NEUTRAL- PARK position check for forward movement of either drive wheel (if either wheel moves back- ward, refer back to Neutral Function Adjustment - Step 3 and readjust).
  • Page 92: Blade Clutch (Pto)

    Maintenance Instructions REPLACING/REPAIRING 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 REPLACING/REPAIRING The declutched or disengaged position of the Clutch Disengagement/Brake Action 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 activated by the brake actuator rod linkage to the clutch 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 Stop Block Eccentric Adjustment - Step 1 38 mm) pulley travel from “clutch engaged”...
  • Page 95: Blade Brake Band Adjustment

    Maintenance Instructions ADJUSTMENTS NOTE: The length of the actuator rod is adjusted by Blade Brake Band Adjustment - Step 3 disconnecting the bottom clevis and shortening or After the pulley travel is set, make the following ad- lengthening accordingly. The standard pre-set justment 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 With the steering levers held back, move the FSC lever back from the FORWARD position. The FSC friction lock is adjusted to hold the se- With a proper amount of friction adjusted, the lected forward speed when the steering levers are FSC lever should move back with a slight amount moved.
  • Page 97: Steering Handles

    Maintenance Instructions ADJUSTMENTS Steering Handles Tilt-Up Deck Adjustable Stop An adjustment range of approximately 3 in. (76 mm) When the carrier frame hinge joint is properly ad- is available on the steering handles - the handles justed, the deck lock levers should move in and out can be adjusted forward or aft depending on the arm of the engaged and disengaged positions freely.
  • Page 98: Ghs "Full" Signal Horn Adjustment (When Horn Sounds At Wrong Time)

    Maintenance Instructions ADJUSTMENTS GHS “Full” Signal Horn Adjustment (When Horn Sounds at Wrong Time) Exhaust Screen 4 to 4-1/2 in. ® The vertical position of the Grass-Pak switch is (10 to 11.5 cm) critical to make sure the catcher box does not over- fill causing the delivery chute to clog.
  • Page 99: Warranty

    (1) year* after 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, transpor- tation charges prepaid.
  • Page 100 • • WALKER MFG. CO. 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 (970) 221-5614 © FORM NO. 100517 PRINTED IN USA www.walkermowers.com 2017 WALKER MFG. CO...

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