Walker T27i Operator's Manual
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Walker T27i Operator's Manual

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Operator's Manual
Safety, Assembly, Operating, and Maintenance Instructions
Please Read and Save These Instructions
Beginning S/N: 124812
For Safety, Read All Safety and Operation
Effective Date: 10.02.13
Instructions Prior to Operating Machine
P/N 8000-21

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Summary of Contents for Walker T27i

  • Page 1 Operator’s Manual Safety, Assembly, Operating, and Maintenance Instructions Please Read and Save These Instructions Beginning S/N: 124812 For Safety, Read All Safety and Operation Effective Date: 10.02.13 Instructions Prior to Operating Machine P/N 8000-21...
  • 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 Operating Instructions General Information ________________ 1 _____________ 27 HIGHLIGHTED INFORMATION _____________ 1 CONTROL IDENTIFICATION, GLOSSARY ____________________________ 1 LOCATION, AND FUNCTION _____________ 27 IDENTIFYING NUMBER LOCATIONS ________ 1 Operating Controls ____________________ 27 ENGINE SERIAL NUMBER LOCATION _______ 2 Engine Choke _______________________ 27 SERVICING OF ENGINE AND Engine Throttle ______________________ 28...
  • Page 4 Table of Contents Maintenance Instructions CHECKING/SERVICING __________________ 68 __________ 53 Security of Air Filtration Components ____ 68 MAINTENANCE SCHEDULE CHART _______ 53 Battery ______________________________ 68 IMPORTANT TIPS FOR CARE Electrolyte Level _____________________ 68 OF THE KOHLER ENGINE ________________ 54 Cleaning the Terminals ________________ 68 Fuel System _________________________ 54 Charging the Battery __________________ 68 Starting/Stopping _____________________ 54...

  • Page 5: General Information

    Most accidents associated with the opera- forward in the tractor seat. tion or maintenance of a Walker Mower are caused by disregarding basic safety precautions or specific • SIDE DISCHARGE (SD) discharges mowed warnings.

  • 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

    Fuel Tank Capacity gal (L) 4.7 (17.8) Regular Grade Unleaded Fuel 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, 35AH, 300 CCA Charging System Flywheel Alternator Charging Output...

  • Page 8: Blade Drive

    Specifications MODEL TRANSMISSION (continued) Transmission Fluid Factory Service Mobil 1 Synthetic Motor Oil (15W-50) Transmission Oil Capacity fl oz (L) 19 (0.56) Transmission Cooling Cooling Fan Mounted on Drive Pulley Ground Travel Speed Forward MPH (km/h) 0-7 (0-11) Infinitely Variable Reverse MPH (km/h) 0-5 (0-8) Infinitely Variable BLADE DRIVE...

  • Page 9: Dimensions (Tractor And Mower)

    Specifications MODEL DIMENSIONS (Tractor and Mower) Length in. (cm) Tractor Only 64.5 (164) Tractor Wheel Base 42.25 (107.5) Tractor with Tilted Deck 77 (195.5) (Approximate) Tractor with 48" Collection Deck 93 (236) (DC48-1) Width in. (cm) Tractor Only (Outside Tire) 39.25 (100) Tractor with 48"...

  • Page 10: Mower Deck

    (DS52 and DS62 Belt Driven SD 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. Turbine Grass Handling System Precleaner 10.0 Bushel Catcher Tilt-Up Latch Spring Clip Counterweight Spring and Protective Cover Transmission Control Rod Adjustment Nuts Deck Support Pins and Height Adjustment Hitch Pins Anti-Scuff Roller Catcher Lift /...
  • Page 12 Component Identification Removable Grass Catcher Screen Catcher Door (Not Visible) Gas Spring (Not Visible) Catcher Door Catcher Lift / Dump Handle Instrument Panel Guard Catcher Air Exhaust Instrument Panel Box Dump (Shock Mounted) Plate Anti-Scuff Roller Catcher Door Handle Muffler Tailpipe Filter Fuel Filter...
  • Page 13 Component Identification Fuel Filter Air Intake Plenum Voltage Regulator / Fuel Pump Donaldson Air Cleaner Rectifier Air Cleaner Cover Exhaust Grass Air Filter Shield Restriction Gauge Throttle and Fuel Pickup Choke Linkage Line Muffler Heat EVAP Line Shield Roll Over Valve Oil Dipstick / Oil Fill Air Intake Hose Fuel Gauge...

  • Page 14: Safety Instructions

    Manufacturing must take full responsibility for safety. comply with safety instructions may result in person- al injury. The Walker Rider Lawnmower has been designed with many safety features to protect the operator from The seriousness or degree of importance of each personal harm or injury.
  • Page 15 Safety Instructions - Before Operating Do not wear loose fitting clothing that could get 11. Never attempt to make any adjustments caught in moving parts. Do not operate this ma- while the engine is running, except where chine while wearing shorts; always wear ade- specifically instructed to do so.

  • 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) and turn and use caution to start, stop, and maneuver.

  • Page 18: Maintenance

    Safety Instructions - Maintenance To prevent accidental starting of the engine 11. Use care when charging the battery or per- when servicing or adjusting the machine, re- forming maintenance on the battery and electri- move the key from the ignition switch and dis- cal system: connect the spark plug wires.

  • Page 19: Safety, Control

    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

    Assembly Instructions SETUP INSTRUCTIONS Wet Battery Service Walker Mowers are shipped partially assembled to If the battery has been shipped wet, but the electro- our distribution network, and are typically assem- lyte level is low or the battery needs to be charged bled by the selling dealer.

  • Page 24: Battery Charging

    Assembly Instructions IMPORTANT: Battery must be removed from Battery Installation the mower before filling with electrolyte. IMPORTANT: Make sure battery is securely mount- ed in the frame. A loose battery may cause damage IMPORTANT: Obtain and use only battery to the case resulting in acid leakage and severe grade sulfuric acid electrolyte with a 1.265 spe- damage to the machine.

  • Page 25: Mower Deck Assembly

    Assembly Instructions Mower Deck Assembly Carrier Frame Tube Sockets Deck Caster Wheels Installation Attach Attach Guard Chute Remove the bolt, nut, axle spacer tube, and spacer washers from each deck caster wheel fork. NOTE: Spacer washers are used only when the optional foamed rubber deck wheels are in- stalled.

  • Page 26: Pto Shaft Guard Installation

    Assembly Instructions PTO Shaft Guard Installation Coupler Installation Tool Position the shaft guard as shown and mount with two (2) 1/4-20 x 1/2 in. bolts. Tilt-Up Roller Wheel Installation Mount the two (2) tilt-up roller wheels on the brack- ets on the rear skirt of the deck housing using the P/N 8490 axle bolt, 3/8 in.
  • Page 27 Assembly Instructions IMPORTANT: To prevent damage to the mow- Install the hitch pin through the hole on the end er, make sure the PTO quick disconnect is se- of each support arm to lock the deck in place (refer to Deck Counterweight Spring Installa- curely locked on the tractor, with the locking tion photo).

  • Page 28: Deck Leveling

    Assembly Instructions Deck Leveling Check the side-to-side level. Rotate each blade sideways and measure the distance Position mower on a smooth, level surface. Set from blade tip to ground on each side. If mea- the cutting height to the highest position - 4 in. surements vary more than 1/8 in.

  • Page 29: Preoperating Checklist

    Assembly Instructions PREOPERATING CHECKLIST CHECK ENGINE CRANKCASE OIL LEVEL Before operating the mower for the first time, and as Check the engine crankcase oil level before use and a routine before daily operations, it is important to after each 8 hours of continuous operation. Refer make sure the mower is properly prepared and to LUBRICATION for Checking Engine Crankcase Oil Level in Maintenance Instructions.
  • Page 30 Assembly Instructions CHECK HYDROSTATIC TRANSMISSION OIL Deck Lift Handle LEVEL Tilt-Up Hook and Latch Connected Refer to LUBRICATION for Checking Hydrostatic Transmission Fluid Level in Maintenance Instruc­ tions. Tilt-Up Latch CHECK FUNCTIONS OF INSTRUMENT PAN- EL AND WARNING HORN Tilt-Up Deck Lock Turn the ignition key to the ON (RUN) position.

  • Page 31: Operating Instructions

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

  • Page 32: Engine Throttle

    Operating Instructions Steering Levers Throttle Choke Each drive wheel is controlled by its own indepen- dent steering lever, for both steering function and FORWARD/REVERSE motion. The FSC lever sets the maximum forward speed, and also sets the for- ward position of the steering levers. The steering levers operate only with a backward pulling move- ment of the lever, which causes the drive wheel for that lever to first slow down, stop, and then reverse...
  • Page 33 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 34: Parking Brake

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

  • Page 35: Instrument Panel

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

  • Page 36: Hourmeter

    *** In normal operating conditions, oil changes in perature are above the safe operating limit and the 100-hour intervals are acceptable. Walker and engine is overheating [above 305° F (152° C) oil the engine manufacturers recommend engine or 450°...

  • Page 37: Ignition Switch

    Operating Instructions Ignition Switch Circuit Breaker The ignition switch is used to start and stop the en- One manual reset 7 amp circuit breaker that pro- gine. The switch has three positions: “O” is the OFF tects the safety circuits and GHS is located on the position, “I”...

  • Page 38: Adjusting Ground Speed And Steering

    It is not necessary damage the starter motor and shorten battery to hold the FSC lever in position since a friction life. Consult your Walker dealer or authorized lock maintains the selected lever position (and Kohler dealer for additional help.
  • Page 39 When the machine is stopped or moving slowly, engage the parking brake. ♦ Remember it is not necessary to hold the steering levers forward (a unique Walker feature); always PULL on the levers for NOTE: This is exactly the same procedure steering or for reverse motion of the mower.

  • Page 40: Engaging The Blade Drive

    NOTE: If the tractor creeps forward or back- ward with the FSC lever in the NEUTRAL-PARK position, the transmission control needs to be adjusted. Contact your Walker dealer. ENGAGING THE BLADE DRIVE Set the engine throttle at about 1/3 speed. Do...
  • Page 41 Operating Instructions CAUTION If the cutting blades strike a stationary ob- ject while mowing, stop the mower imme- diately, disconnect the spark plug wires, lift the deck, and inspect the deck and blades thoroughly for damage. Make sure that the blade timing has not been dis turbed (the blades should be at 90 degrees to each other).

  • Page 42: Stopping The Machine

    (5) seconds, the brake park the machine. should be adjusted or repaired before op- erating the mower. Contact your Walker dealer. Slow the engine to idle, put throttle in IDLE posi- tion; and turn the ignition switch OFF.

  • Page 43: Adjusting Cutting Height

    Operating Instructions ADJUSTING CUTTING HEIGHT The mower will “freewheel” with the levers in the LOCKOUT position. The levers must be in the highest position to completely unlock the trans- WARNING missions. The engine must be stopped before ad- Lockout Lever justing cutting height.

  • Page 44: Recommendations For Mowing

    Operating Instructions • RECOMMENDATIONS FOR MOWING When mowing, operate the engine at full throttle for the best cutting action and performance of the grass handling system (GHS). Mowing with a lower DANGER engine RPM causes the mowing blade to not cut clean and tear the grass.
  • Page 45 Operating Instructions • When using a side discharge mower deck, the Maximum Recommended side discharge deflector shield must not be Slope - Do Not Operate removed and must be kept in the lowest possible on Steep Slopes position to deflect grass clippings and thrown objects down ward.

  • Page 46: 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 47: 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 PTO Clutch Door Shear Pin PTO and Blade (If Equipped) ®...

  • Page 48: 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 49: 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 FORWARD will stop. Also, the mower deck will begin to leave a trail of grass clippings.

  • Page 50: Using The Tilt-Up Deck

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

  • Page 51: 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 of the screen), and slide the screen out. Use a high Do not mow or dump grass within 5 feet pressure washer or water spray and brush to clean (1.5 meters) of an embankment or retaining...

  • Page 52: 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 53: Power Dump Option

    Operating Instructions Power Dump Option NOTE: If grass tends to hang up in the catcher after raising the catcher with the power dump, “jig- When equipped with the optional power dump sys- gle” the steering levers and make the tractor bounce tem, the operator dumps the catcher while sitting in a little to unstick the grass and make it slide out of the seat.

  • Page 54: Hi-Dump ® Option

    Operating Instructions ® Hi-Dump Option CAUTION ® When equipped with the optional Hi-Dump system, the operator raises and dumps the catcher while sit- The operator should be in the seat with the ting in the seat. Two toggle switches operate inde- machine in the NEUTRAL-PARK Position pendent hydraulic cylinders to raise and lower the and the parking brake engaged and by-...
  • Page 55 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 Assembly Spring Actuator Mount Assembly Dog Leg Assembly Rubber Bumper Power Dump Components...
  • Page 56 Operating Instructions Catcher Door Upper Catcher Door Grass Catcher Gas Spring Cable Guide Lift Channel Gas Spring Assembly Lower Door Arm Actuator Cable Assembly Catcher Pivot Arm Control Lift Rod Dump Cylinder Hydraulic Control Valves Hydraulic Lift Rod Valve Box Reservoir/Power Unit Safety...

  • Page 57: Maintenance Instructions

    Change engine oil and filter after first 5 hours of operation of a new engine (break-in period) ΔΔ Change every 2 years or 1000 hours 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 58: Important Tips For Care Of The Kohler Engine

    Maintenance Instructions KOHLER TIPS IMPORTANT TIPS FOR CARE OF THE KOHLER Air Cleaner System ENGINE • Use only Donaldson air cleaner elements. After- market elements may not seal in the air cleaner Fuel System housing, allowing dirt to enter the engine. Also, af- •...

  • Page 59: 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 60: Changing Engine Crankcase Oil/Oil Filter

    Maintenance Instructions LUBRICATION Changing Engine Crankcase Oil/Oil Filter Remove the old oil filter and wipe off the filter mounting surface on the engine. Change the engine crankcase oil after every 100 hours of operation and replace the oil filter every Apply a thin coating of clean oil to the rubber other oil change (every 200 hours of operation).

  • Page 61: 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 oil NOTE: These instructions apply to all mower decks per gearbox is required to refill the gear drive with gear-driven blades.

  • Page 62: Ds52 Or Ds62 Mower Deck Lubrication

    Maintenance Instructions LUBRICATION DS52 or DS62 Mower Deck Lubrication Tractor PTO Gearbox Lubrication Checking Gearbox Oil Level There are several special lubrication requirements for the DS52 or DS62 mower deck in addition to the Check the gearbox oil level every 25 hours, and if require ments detailed in the Chassis and Deck necessary, add oil [SAE E.P.

  • Page 63: Hydrostatic Transmission Fluid

    Hydrostatic fluid level should be checked ev- need to be serviced by an authorized Walker dealer. ery 25 hours of machine operation. It is preferable When a transmission is found to be low on oil, it is to check the fluid when the fluid is cold.
  • Page 64 Maintenance Instructions LUBRICATION Ident Lubrication Ident Lubrication Location Type Places Location Type Places PTO Clutch Lever Pivot Grease Deck Caster Wheel Fork Pivot Grease Clutch Actuator Spring Assembly Grease Deck Caster Wheel Bearing Grease Belt Tightener Pivot, Grease Δ Blade Spindle Grease PTO Clutch Pivot Assembly, Tilt-Up Deck...
  • Page 65 Maintenance Instructions LUBRICATION 31 & 41 34 & 40 Chassis and Deck Lubrication Points (DC42 Shown)

  • Page 66: Cleaning

    Maintenance Instructions CLEANING CLEANING Turbine Precleaner The turbine precleaner is mounted on a remote air Engine Air Cleaner System intake tube connected to the Donaldson air cleaner. A spinning fan driven by the intake airflow separates CAUTION dust from the air, giving the initial stage of air clean- ing.

  • Page 67: 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 68 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 69: Engine Cooling System

    Maintenance Instructions CLEANING Engine Cooling System NOTE: If dirt is packed into the cooling fins it may be necessary to remove the engine shroud in order Cooling Air Intake System to thoroughly clean the cooling fins. To prevent engine overheating and possible engine Engine Cooling damage, clean grass clippings, chaff, and dirt from Fin Access Panels...

  • Page 70: Ghs Blower

    Maintenance Instructions CLEANING Raise the deck lock lever handle on each side GHS Blower of the carrier frame and pull out to release car- Normally, the GHS blower operates with no mainte- rier frame for tilting action. nance or cleaning. However, when mowing grass Using the carrier frame lift handle, raise deck to that is dirty and damp (especially springtime mow- the TILT-UP position and insert the deck hook...

  • Page 71: Ghs Exhaust Screen

    Maintenance Instructions CLEANING Hydrostatic Transmission Cooling Fins GHS Blower Blower Keeping the cooling fins on the hydrostatic transmis- Drive Belt Pulley sions clean and free of obstruction is essential to Blower avoid overheating the transmission fluid and short- Drive Pulley ening transmission life.

  • Page 72: Checking/Servicing

    Maintenance Instructions CHECKING/SERVICING CHECKING/SERVICING Replace filler caps. IMPORTANT: DO NOT overfill the battery. Electro- DANGER lyte will overflow through the vented caps onto parts of the machine and WILL result in severe corrosion. To prevent accidental starting of the en- Cleaning the Terminals gine when servicing or adjusting the ma- chine, remove the key from the ignition...

  • Page 73: Tire Pressure

    Maintenance Instructions CHECKING/SERVICING Tire Pressure WARNING Inflate tires to pressures shown below: Deck Caster Wheel = 20 PSI (137 kPa) DO NOT try to straighten a blade that is Drive = 15 PSI (103 kPa) bent. NEVER weld a broken or cracked Tailwheel = 20 PSI (137 kPa) blade.

  • Page 74: Drive Belts

    Maintenance Instructions CHECKING/SERVICING Check blade balance by positioning the blade Mower Deck Gearbox Oil Seals horizontally on a blade balancer or use a nail The mower deck gearbox seals should be inspected or shaft through the center hole. If either end of every 25 hours for evidence of oil leaking;...

  • Page 75: Blade Brake Action

    Contact your Walker dealer for The FSC friction lock is designed to hold the se- this service or refer to the Walker Service Manual. lected forward travel speed when the steering le- vers are moved and yet the friction is not too heavy...

  • Page 76: 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: • Jackshaft Drive Belt To prevent accidental starting of the en- • gine when replacing parts or repairing the Engine PTO Drive Belt (3 Groove Power Band) machine, remove the key from the ignition •...

  • Page 77: Engine Pto Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Engine PTO Drive Belt (3 Groove Power Band) Raise the clutch lever (engage position) to 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 78: 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 79: 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. The belt should be clear of the blower pulley, allowing free movement of the blower wheel. Blower Drive GHS Blower Pulley Drive Belt...

  • Page 80: 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 81: Fuel Filter

    Maintenance Instructions REPLACING/REPAIRING Fuel Filter DANGER Gasoline is extremely flammable and can be highly explosive. To minimize danger: In-Line • Before servicing the fuel system: Fuel Filter 1) Disconnect the spark plug leads. 2) Disconnect the negative (-) battery ca- ble from battery.

  • Page 82: Blade Overload Shear Bolts

    After reinstalling the blade, check blade timing (on gear driven decks) by moving blades through one IMPORTANT: Use only Walker P/N 8067-13 (1) complete revolution. Make sure blade tips shear pins for replacement to provide proper pass clear of each other. If timing is incorrect, con- shock protection -- these pins are hardened to tact your Walker dealer.

  • Page 83: Mower Blades

    Maintenance Instructions REPLACING/REPAIRING • Mower Blades Check the blades for straightness by marking blade tip position inside the deck housing and then Mower blades are removed and remounted as de- rotating the opposite end of the blade to the same scribed in Sharpen Mower Blades instructions (re- position and comparing.

  • Page 84: Adjustments

    Maintenance Instructions ADJUSTMENTS ADJUSTMENTS Tilt-Up Deck Adjustable Stop Steering Handles When the carrier frame hinge joint is properly ad- justed, the deck lock levers should move in and out An adjustment range of approximately 3 in. (76 mm) of the engaged and disengaged positions freely. All is available on the steering handles - the handles four (4) hitch pins used for height adjustment should can be adjusted forward or aft depending on the arm...

  • Page 85: 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 over- (10.16 to 11.43 cm) fill causing the delivery chute to clog. The vertical position can be adjusted by moving the aluminum ®...

  • Page 86: Operator's Notes

    Operator’s Notes...

  • Page 87: 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 88 WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 FORM NO. 090815 PRINTED IN USA www.walkermowers.com ©2015 WALKER MFG. CO...

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