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Walker MT, MTL, MTEFI, MTLEFI Owner's Manual

Rider lawnmowers
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See also: Owner's Manual , Detailed Instructions
OWNER'S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
Model MT (23.0 HP)
Model MTL (25.0 HP)
Model MTEFI (26.0 HP)
Model MTLEFI (31.0 HP)
™
Please Read and Save These Instructions
Effective Date: 04-01-07
For Safety, Read All Safety and Operation
P/N 8000-14
Instructions Prior to Operating Machine

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Related Manuals for Walker MT, MTL, MTEFI, MTLEFI

Summary of Contents for Walker MT, MTL, MTEFI, MTLEFI

  • Page 1 OWNER’S MANUAL Safety, Assembly, Operating, and Maintenance Instructions Model MT (23.0 HP) Model MTL (25.0 HP) Model MTEFI (26.0 HP) Model MTLEFI (31.0 HP) ™ Please Read and Save These Instructions Effective Date: 04-01-07 For Safety, Read All Safety and Operation P/N 8000-14 Instructions Prior to Operating Machine...
  • 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 us at (970) 221-5614.

  • Page 3: Table Of Contents

    Table of Contents General Information HIGHLIGHTED INFORMATION _____________ 1 GLOSSARY ____________________________ 1 IDENTIFYING NUMBER LOCATIONS________ 1 ENGINE SERIAL NUMBER LOCATION ______ 2 SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS ______________ 2 Specifications ________________________ 3 ENGINE________________________________ 3 ELECTRICAL SYSTEM ___________________ 4 TRANSMISSION_________________________ 4 BLADE DRIVE __________________________ 5 TIRE SIZE ______________________________ 5 TIRE PRESSURE ________________________ 5...
  • Page 4 Table of Contents Maintenance Instructions MAINTENANCE SCHEDULE CHART _______ 55 IMPORTANT TIPS FOR CARE OF THE KOHLER ENGINE _______________ 56 Fuel System _________________________ 56 Starting/Stopping _____________________ 56 Cooling System - MT, MTEFI____________ 56 Cooling System - MTL _________________ 56 Air Cleaner System ___________________ 56 Oil _________________________________ 57 LUBRICATION _________________________ 57 Engine Oil ___________________________ 57...

  • Page 5: General Information

    Most accidents associated with the opera- tion or maintenance of a Walker Mower are caused by disregarding basic safety precautions or specific 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- tance: Walker Manufacturing Company Service manuals are available for each of these components from their respective manufacturers as follows:...

  • Page 7: Specifications

    Specifications MODEL ENGINE Manufacturer/Model Displacement CH23 Displacement CH26 Displacement LH685 Displacement LH775 HP (@ 3600 RPM) CH23 HP (@ 3600 RPM) CH26 HP (@ 3600 RPM) LH685 HP (@ 3600 RPM) LH775 Max. RPM (No Load) Governed RPM · Max. Torque [ft-lb (N m) @ RPM] CH23 CH26...

  • Page 8: Electrical System

    Specifications MODEL ELECTRICAL SYSTEM Battery Charging System Charging Output System Polarity Ignition Starter Interlock Switch Circuit Breaker TRANSMISSION Manufacturer/Model Steering Forward Speed Control Service Brake Parking Brake Neutral Final Drive Transmission Fluid Factory Service Alternate Transmission Fluid Transmission Fluid Capacity Transmission Cooling AIR COOLED MT (23.0 HP)

  • Page 9: Blade Drive

    Specifications MODEL TRANSMISSION (continued) Ground Travel Speed Forward m.p.h. (km/h) Reverse m.p.h. (km/h) BLADE DRIVE PTO Shaft Blade Spindle Blade Drive Clutch and Brake Max. Blade Speed [22 in. (56 cm) Blade] @ 3600 RPM Engine TIRE SIZE Deck Caster Wheel 36, 42, 48, 56 52, 62, 74 Deck Caster Wheel (Optional)

  • Page 10: Mower Deck

    796 lb (361 kg) MTEFI 984 lb (446 kg) MT 994 lb (451 kg) MTEFI Walker P/N 8230 Gates 3VX375 (or Walker P/N 6250) Walker P/N 7248 Gates 3VX280 (or Walker P/N 7234-1) 4-1/2 x 10-1/2 x 1/2 in. (11 x 27 x 1 cm) Three-Blade...

  • Page 11: Seat

    Specifications MODEL GHS SYSTEM (Optional) (continued) Optional Grass Catcher Capacity ® Full Signal (Grass-Pak Switch) ® Powerfil SEAT FRAME/BODY CONSTRUCTION Frame Body Deck GHS Catcher and Chutes **Dimensions and weight shown are for 48 in. (122 cm) GHS Model (typical). Dimensions for Tractor and Mower with 42 in.

  • Page 12: Component Identification

    Component Identification Catcher Door Safety Latch Anti-Scuff Roller Catcher Lift / Dump Handle Fuel Tank and Cap Counterweight Spring and Protective Cover Transmission Control Rod Adjustment Nut (RH) Deck Lift Handle (Cutting Height Adjustment) Grass Handling System Turbine 9.5 Bushel Catcher Standard Precleaner 7.0 Bushel Catcher (Optional) Tilt-Up...
  • Page 13 Component Identification Removable Grass Catcher Door Catcher Screen Catcher Exhaust Gas Spring (Not Visible) Deflector Gas Spring Cover Catcher Lift / Dump Handle Instrument Panel Catcher Guard Door Dump Instrument Panel Box Plate (Shock Mounted) Catcher Anti-Scuff Door Handle Roller Tailpipe Muffler Filter...
  • Page 14 Component Identification Model MT Donaldson Air Cleaner Air Restriction Indicator Fuel Pickup Line Air Intake Hose Fuel Tank Precleaner Tube Jackshaft PTO Gearbox Dipstick Turbine Precleaner RH Transmission Lockout Lever 30 Amp Circuit Breaker Clutch Lever Positive (+) Battery Cable Negative (-) Battery Cable Air Intake...
  • Page 15 Component Identification Model MTL Low Idle Air Cleaner Adjustment Screw Cover Muffler Donaldson Tailpipe Shield Fuel Air Cleaner Overflow Muffler Filter Hose Radiator Overflow Hose Tank Radiator Cap Air Restriction Indicator Fuel Pickup Throttle and Choke Line Linkage Air Intake Hose Oil Dipstick/ Oil Fill Fuel Tank...
  • Page 16 Component Identification Model MTEFI Air Cleaner Cover Fuel Pump Fuel Line to Engine Donaldson Air Cleaner (High Pressure) Muffler Grass Shield Air Restriction Indicator Throttle Linkage Fuel Pickup Line Fuel Return Line Air Intake Hose Oil Dipstick/Oil Fill Muffler Fuel Tank Rubber Bumper (Catcher Support) Precleaner...
  • Page 17 Component Identification Model MTLEFI Air Restriction Indicator Muffler Grass (not visible) Shield Air Cleaner Fuel Pump Donaldson Air Cleaner Cover Muffler (not visible) Overflow Radiator Tank Hose Overflow Hose Radiator Cap Fuel Return Line Throttle Linkage Oil Pressure Switch Air Intake Hose Oil Dipstick/ Oil Fill Fuel Tank...

  • Page 18: Safety Instructions

    Any person using procedures, tools, or control techniques not recommended by Walker Manufacturing must take full responsibility for safety. The Walker Rider Lawnmower has been designed with many safety features to protect the operator from personal harm or injury. However, it is necessary for the operator to use safe operating procedures at all times.

  • Page 19: Operating

    Safety Instructions Do not wear loose fitting clothing that could get caught in moving parts. Do not operate this machine while wearing shorts; always wear adequate protective clothing, including long pants. Wearing safety glasses, safety shoes, and a helmet is advisable and required by some local ordinances and insurance regulations.
  • Page 20 Safety Instructions Disengage the blade clutch and put the FSC in the NEUTRAL-PARK position before starting the engine (an ignition interlock switch normally prevents starting of the machine if these con- trols are in the OPERATING position). Do not run the engine in a confined area without adequate ventilation.

  • Page 21: Maintenance

    Safety Instructions 21. When leaving the machine unattended, dis- engage the blade clutch (PTO), stop the en- gine, and remove the key. 22. For Model MTL and MTLEFI, never remove the radiator pressure cap when the engine is hot (hot water may spray and cause burns).

  • Page 22: 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. Adjacent to Blower Discharge Chute Each End of Mower Deck (5808 All Decks Except 52, 56, 74) through Body (5804)
  • Page 23 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. Bridge Assembly and LH Gear Axle (5810-3) Deck Gearbox Cover (5807-3) Deck Carrier Frame (8647)

  • Page 24: Assembly Instructions

    Assembly Instructions SETUP INSTRUCTIONS Walker Mowers are shipped partially assembled. After uncrating the tractor and mower deck, initial setup is required. NOTE: During the process of unpacking, any dam- aged or missing parts should be noted and reported to the delivering carrier immediately (put in writing within 15 days).

  • Page 25: Battery Charging

    Assembly Instructions DANGER Battery electrolyte is a poisonous and cor- rosive sulfuric acid solution. • Avoid spillage and contact with skin, eyes, and clothing - causes severe burns. • To prevent accidents, wear safety gog- gles and rubber gloves when working with electrolyte.

  • Page 26: Battery Installation

    Assembly Instructions Battery Installation IMPORTANT: Make sure battery is securely mount- ed in the frame. A loose battery may cause damage to the case resulting in acid leakage and severe dam- age to the machine. A hazard may be created by damage to critical working parts and safety systems.

  • Page 27: Deck Discharge Shield Installation

    Assembly Instructions Deck Discharge Shield Installation (Side Discharge Models Only) Attach the deck side discharge shield by positioning the shield hinge lug in front of the deck mount and fastening with two (2) 3/8-16 x 1-1/4 in. bolts, 3/8-16 ESNA nuts, and 3/8 in. wave spring washers. The wave washers fit between the two hinging surfaces.
  • Page 28 Assembly Instructions Reaching under the tractor, join the PTO tube to the PTO shaft (align arrow decals). Slide the PTO tube onto the spline shaft on the tractor PTO gearbox. NOTE: When installing the DSD52 Mower deck, make sure to retract the dolly wheel after mounting the deck on the tractor.

  • Page 29: Deck Leveling

    Assembly Instructions Deck Leveling Position mower on a smooth, level surface. Set the cutting height to the highest position - 4 in. (102 mm) - for easy access under the deck to measure blade height. Refer to ADJUSTING CUTTING HEIGHT in Operating Instructions. NOTE: A block of wood cut 4 in.

  • Page 30: Preoperating Checklist

    Assembly Instructions PREOPERATING CHECKLIST Before operating the mower for the first time, and as a routine before daily operations, it is important to make sure the mower is properly prepared and ready for operation. The following is a list of items to be checked.
  • Page 31 Assembly Instructions CHECK ENGINE COOLING SYSTEM - Model • Check the radiator air intake screen to make sure the screen is clean and free of obstruction. Also, the radiator cooling fins should be inspected and cleaned if there is any buildup of dirt or debris.
  • Page 32 Assembly Instructions CHECK MOWER BLADE CONDITION, SHARP- NESS, AND SECURITY OF MOUNTING The blade mounting nut should be tightened to · 60 ft-lb (81.3 N m). If blade sharpening is required, refer to CHECKING/SERVICING for Sharpen Mower Blades in Maintenance Instructions. ADJUST MOWER CUTTING HEIGHT, IF RE- QUIRED Position the hitch pins in the four deck support pins.

  • Page 33: Operating Instructions

    Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND FUNCTION Operating Controls CAUTION Before operating the mower, become fa- miliar with the location and function of all operator controls. Knowing the location, function, and operation of these controls is important for safe and efficient opera- tion of the mower.

  • Page 34: Engine Throttle

    Operating Instructions Throttle Choke Choke and Throttle Location (MT and MTL) Engine Throttle The throttle control lever (red knob) is located on the left side of the seat and is used to control engine speed. Moving the lever forward toward the FAST position increases engine speed;...
  • Page 35 Operating Instructions The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers LEFT WHEEL STEERING LEVER Forward Position (No Control Change) Neutral-Park Position Reverse Drive Wheel Motion Position MTEFI Fast Throttle Position Idle Position THROTTLE MTLEFI ON Position OFF Position CHOKE (MT &...

  • Page 36: Front Body Latch Release

    Operating Instructions Front Body Latch Release The front portion of the tractor body hinges forward for maintenance access and is latched down in the OPERATING position. To raise the body, move the latch release forward. Front Body Latch Release Front Body Latch Release Transmission Lockout Levers The transmission lockout levers disengage the hy- drostatic transmissons.

  • Page 37: Suspension Seat (Mtl And Mtlefi)

    (for example a defective seat suspension; improper curving of the lumbar support or damaged bellows), contact your Walker Dealer immediately to ar- range for repairs to be carried out. If you fail to do so, your health may be affected and the risk of ac- cident increased.
  • Page 38 Operating Instructions For Backrest adjustment, moving the adjustment handle upwards loosens the notching of the back- rest adjustment. Refer to Figure 3. After the adjustment, the handle must lock in the de- sired position. It should not be possible to move the backrest into another position when it is locked.

  • Page 39: Instrument Panel

    Operating Instructions Instrument Panel This illustration shows the configuration of the switches and indicators located on the instrument panel. Voltmeter Hourmeter Light Switch (Optional) MTEFI 7 AMP Circuit Breaker Oil Pressure Over Temperature Warning Light Warning Light 7 AMP Circuit Breaker Over Temperature Oil Pressure Warning Light...
  • Page 40 Operating Instructions Temperature Voltmeter Light Switch (Optional) Temperature Voltmeter MTLEFI Light Switch (Optional) Water Oil Pressure Gauge Warning Light 10 AMP Hourmeter Circuit Breaker Water Oil Pressure Warning Light Gauge 10 AMP Hourmeter Circuit Breaker Water Temperature Warning Light Ignition Switch 7 AMP Warning...

  • Page 41: Hourmeter

    This reminder is only used one time. *** In normal operating conditions, oil changes in 100-hour intervals are acceptable. Walker and the engine manufacturers recommend engine oil changes every 50 hours in extremely dirty or dusty conditions or for units with less than 100 hours annual use.

  • Page 42: Water Temperature Warning Light (Model Mtl)

    Operating Instructions Water Temperature Warning Light (Model MTL) The water temperature warning light indicates that engine coolant temperature is above the safe oper- ating limit and the engine is overheating. If this light comes on, there may be a problem with: •...

  • Page 43: Circuit Breakers

    Turn the key to the OFF position and allow a 60 second cool-down period between starting attempts. Failure to follow these guidelines can damage the starter motor and shorten battery life. Consult your Walker dealer or Authorized Kohler dealer for additional help.

  • Page 44: Adjusting Ground Speed And Steering

    Control setting until familiar with all operat- ing characteristics. ♦ Remember it is not necessary to hold the steering levers forward (a unique Walker feature); always PULL on the levers for steering or for reverse motion of the mower. ♦ Learn to operate the mower with your left hand on the steering levers and right hand on Forward Speed Control.

  • Page 45: Engaging The Mower

    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 MOWER With Left Hand Set the engine throttle at about 1/3 speed. Do not attempt to engage the blade clutch at high engine speeds.

  • Page 46: Stopping The Machine

    (5) seconds, the brake should be adjusted or repaired before op- erating the mower. Contact your Walker Dealer. Turn the ignition switch OFF. When stopping the engine, do not reduce the throttle below 1/2 speed.

  • Page 47: Adjusting Cutting Height

    Operating Instructions ADJUSTING CUTTING HEIGHT WARNING The engine must be stopped before ad- justing cutting height. Disengage the blade clutch (PTO), stop the engine, and remove the ignition key. Wait for all move- ment to stop before getting off the seat. Cutting height is adjusted by positioning the four re- tainer hitch pins in a series of seven vertical holes on the deck support pins.

  • Page 48: Recommendations For Mowing

    Operating Instructions RECOMMENDATIONS FOR MOWING IMPORTANT: Operate the engine at full speed when mowing, to allow the engine to produce full horsepower and to increase efficiency of the engine cooling system. • Keep the mower deck and discharge chute clean. •...

  • Page 49: 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 50: Grass Handling System (Ghs)

    Operating Instructions GRASS HANDLING SYSTEM (GHS) GHS Model Only Shear Pin PTO and Blade Gear Drive Shear Bolt Rear Discharge Mower Deck Catcher Door Safety Latch ® Grass-Pak Vane Switch ® Powerfil Drive Motor Actuator “Full” Signal Horn Clutch Deck Discharge Chute GHS Flow and Components Exhaust Screen...

  • Page 51: General Information

    Operating Instructions General Information The Grass Handling System (GHS) consists of a rear discharge mower deck connected to a 10.5 in. (27 cm) blower and a rear mounted grass catcher with 9.5 bushel (335 liters) capacity or optional 7.0 bushel (246 liters) capacity. The GHS blower oper- ates any time the mower blade clutch is engaged and moves grass through the rear discharge deck chute into the grass catcher.

  • Page 52: Clogging Checklist

    Operating Instructions Clogging Checklist In case of clogging, there will be a distinct change in the sound of the blower, i.e., the blower sound will stop. Also, the mower deck will begin to leave a trail of grass clippings. When this occurs, stop the engine, disconnect the spark plug wires, and make sure all movement has stopped before attempt- ing to unclog.

  • Page 53: Using The Tilt-Up Deck

    (catcher not completely full) or too late (grass clogging in catcher spout and deliv- ery chute), contact your Walker Dealer. NOTE: The horn signal should be adjusted to sound BEFORE the catcher is completely full to give the operator time to react and stop mowing.

  • Page 54: Dumping The Catcher

    Operating Instructions Dumping the Catcher For dumping, the catcher either tailgate dumps into a disposal area or dumps into the optional dump bag. The dump bag is a reusable nylon fabric bag designed to conveniently move grass clippings from the catcher to a remote disposal area or container. Tailgate Dumping Open the back door by lifting on the door handle.

  • Page 55: Power Dump Option

    Operating Instructions Dumping Catcher into Dump Bag Lower the catcher smoothly down to the normal operating position. DO NOT allow the catcher to drop down - the gas spring, that holds the catcher in the raised position, is not a shock absorber for lowering the catcher.

  • Page 56: Hi-Dump ® Option

    Operating Instructions ® Hi-Dump Option When equipped with the optional Hi-Dump the operator raises and dumps the catcher while sit- ting in the seat. Two toggle switches operate independent hydraulic cylinders to raise and lower the catcher. The back door automatically opens and closes during the dump cycle.
  • Page 57 Operating Instructions Door Actuator Grass Catcher Catcher Door Gas Spring Cable Guide Lift Channel Power Dump Ram Actuator Fork Catcher Door Cable Rod Guide Cable Assembly Spring Actuator Mount Assembly Dog Leg Assembly Rubber Bumper Power Dump Components...
  • Page 58 Operating Instructions Door Actuator Grass Catcher Catcher Door Gas Spring Cable Guide Lift Channel Gas Spring Assembly Catcher Door Cable Assembly Catcher Pivot Arm Dump Control Cylinder Control Lift Rod Lift Rod Relay Switch Hydraulic Valve Box Reservoir/Power Unit Safety Lockout Arm Dump Toggle Switch...

  • Page 59: Maintenance Instructions

    Maintenance Instructions MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MT, MTL, MTEFI, MTLEFI Service Item Check Engine Crankcase Oil Level Check/Clean Engine Air Cooling System* Check Coolant Level, Radiator/Overflow Tank MTL Clean Radiator Screen and Cooling Fins* MTL...

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

    • On the Model MTEFI, the fuel system is pressur- ized. Do not attempt to service this fuel system. Con- tact your Walker dealer or authorized Kohler service dealer for work on the fuel system. Starting/Stopping •...

  • Page 61: Oil

    Maintenance Instructions • Use only multi-viscosity oils as specified with the viscosity matching ambient temperatures for the en- gine operating conditions. This will aid starting in cold weather and assure proper lubrication in hot weather. • Use only Kohler oil filters. Aftermarket filters may not seal properly and/or have the incorrect pressure relief valve for proper lubrication.

  • Page 62: Changing Engine Crankcase Oil/Oil Filter

    Maintenance Instructions Changing Engine Crankcase Oil/Oil Filter For Model MT and MTEFI, change the engine crank- case oil after every 100 hours of operation and re- place the oil filter every other oil change (every 200 hours of operation). For Model MTL, change the engine crankcase oil af- ter every 200 hours of operation and replace the oil filter at the same time.

  • Page 63: Dsd52 Or Dsd62 Mower Deck Lubrication

    Maintenance Instructions Blade Drive Gearboxes Gearbox Mower Deck Gearboxes (shown with gearbox cover removed for clarity) Clean the area around the individual gearbox cover plates to prevent contaminants from en- tering the gearcase. Remove the screws securing the cover plates on the blade drive gearboxes.

  • Page 64: Tractor Pto Gearbox Lubrication

    Maintenance Instructions Dolly Wheel Pivot U-Joint Gearbox, Dolly Wheel, and U-Joint Lubrication Tractor PTO Gearbox Lubrication Checking Gearbox Oil Level Check the gearbox oil level every 25 hours, and if necessary, add oil [SAE E.P. (Extreme Pressure) 80W-90 (API GL-5) gear lube] to maintain oil level to the FULL mark on the dipstick.

  • Page 65: Grease Fitting And Oil Point Lubrication

    Maintenance Instructions Remove the reservoir cap and check the level of the fluid. The reservoir has a fluid level COLD mark and HOT mark. The reservoir oil level should ALWAYS be at or above the COLD mark and NEVER above the HOT mark. Reservoir Cap Hot Level Cold Level...
  • Page 66 Maintenance Instructions Ident Location Deck Caster Wheel Fork Pivot Deck Caster Wheel Bearing Tee Gearbox, Deck Blade Drive Gearbox Universal Joint Shaft Assembly Grease Pivot Assembly, Tilt-Up Deck Deck Support Arm Socket Body Hinge Point FSC Actuator Rod Pivot Pins FSC Lever Pivot FSC Lever Fork (Grease Slide Area)
  • Page 67 Maintenance Instructions 21 & 36 30 & 35 Chassis and Deck Lubrication Points LUBRICATION...

  • Page 68: Cleaning

    Maintenance Instructions CLEANING Engine Air Cleaner System There are two main components in the engine air cleaner system: a turbine precleaner and a Donald- son Radialseal™ air cleaner. Each component is checked, cleaned and maintained on a different schedule based on the filtering action required. Each component is serviced as follows: Turbine Precleaner...

  • Page 69: Donaldson Radialseal™ Air Cleaner

    -- a red flag will appear when the filter is overly restricting airflow into the engine. IMPORTANT: Use only Donaldson air filter ele- ments for replacement (Donaldson P822686 or Walker 5090-1). Aftermarket filters may not seal properly or filter efficiently. Cover Vacuator™ Valve...

  • Page 70: Engine Cooling System - Mt And Mtefi

    Maintenance Instructions Use a bright light inside the element to inspect for damage. Check the element very carefully for pin holes or other damage that will allow dirt to leak through the paper media. Replace element if necessary. Without removing, visually inspect the condition of the safety filter for damage or holes.

  • Page 71: Cylinder Head Cooling Fins

    Maintenance Instructions Cylinder Head Cooling Fins It is essential for performance and longevity of the air-cooled engine to keep the cylinder head cooling fins clean and free of obstruction. After every 8 hours of operation, check the performance of the cooling system by starting the engine, holding a hand adjacent to the cylinder head, and feeling the cooling airflow.

  • Page 72: Flushing Radiator And Changing Coolant

    Maintenance Instructions Flushing Radiator and Changing Coolant Change engine coolant every year. Drain the cool- ant from the engine and radiator: Remove the radiator cap. Open the drain cocks on the engine block and radiator (see the Kohler Owner's Manual for lo- cation of the drain cocks).

  • Page 73: Ghs Blower

    Maintenance Instructions GHS Blower Normally, the GHS blower operates with no mainte- nance or cleaning. However, when mowing grass that is dirty and damp (especially springtime mow- ing), a deposit of dirt may accumulate inside the blower housing, causing wear and binding of the blower wheel.

  • Page 74: Checking/Servicing

    Maintenance Instructions An additional procedure in maintaining transmission cooling is to inspect the cooling fans. Replace the fan(s) if blades are missing or damaged. Cooling Fan Hydrostatic Transmission Cooling Fins CHECKING/SERVICING DANGER To prevent accidental starting of the en- gine when servicing or adjusting the ma- chine, remove the key from the ignition switch and disconnect the spark plug wires.

  • Page 75: Battery

    Maintenance Instructions Battery NOTE: For initial battery service during setup, re- fer to Battery Service in Assembly Instructions. IMPORTANT: Make sure battery is securely mount- ed in the frame. A loose battery may cause damage to the case resulting in acid leakage and severe dam- age to the machine.

  • Page 76: Tire Pressure

    Maintenance Instructions Tire Pressure Inflate tires to pressures shown below: Deck Caster Wheel = 20 PSI (137 kPa) Drive = 15 PSI (103 kPa) Rear = 20 PSI (137 kPa) Wheel Bolt Torque Check every 100 hours the eight (8) lug bolts that mount the drive tires.

  • Page 77: Drive Belts

    Fuel Lines and Clamps NOTE: The MTEFI system is pressurized and should be serviced by a Walker dealer or Authorized Kohler engine service outlet. Every year, inspect the fuel supply line from the tank to engine for deterioration or damage. Also, inspect the fuel line clamps for tightness.

  • Page 78: Radiator Hoses And Clamps - Mtl

    Maintenance Instructions Radiator Hoses and Clamps - MTL Inspect the radiator hoses every 200 hours for de- terioration or damage. Also check the tightness of the hose clamps. Good preventive maintenance calls for complete replacement of the radiator hos- es and clamps every two (2) years. Blade Brake Action WARNING It is important to check and maintain blade...

  • Page 79: Replacing/Repairing

    Maintenance Instructions REPLACING/REPAIRING DANGER To prevent accidental starting of the en- gine when replacing parts or repairing the machine, remove the key from the ignition switch and disconnect the spark plug wires. IMPORTANT: ALWAYS use genuine factory re- placement parts. Substitute parts CAN result in product malfunction and possible injury to the oper- ator and/or others.

  • Page 80: Engine Pto Drive Belt

    Maintenance Instructions Engine PTO Drive Belt (3 Groove Power Band) To remove the engine PTO drive belt: Remove the jackshaft drive belt from its idler pulley (by pushing down on idler pul- ley) and let the belt drop down out of the way.

  • Page 81: Jackshaft Drive Belt

    Maintenance Instructions Jackshaft Drive Belt To remove the jackshaft drive belt: Remove the engine PTO drive belt, as described in previous section. Jackshaft Jackshaft Drive Belt Reverse the removal procedure to replace the jackshaft drive belt. Jackshaft Jackshaft Drive Belt Relax the belt by depressing the spring- loaded idler arm.

  • Page 82: Ghs Blower Drive Belt

    Maintenance Instructions 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 and remove. Reverse the procedure to install the GHS blow- er drive belt. Blower Drive Pulley Depress Idler Pulley...

  • Page 83: Hydrostatic Ground Drive Belt

    Maintenance Instructions Hydrostatic Ground Drive Belt To remove the hydrostatic ground drive belt: Raise the spring-loaded belt tightener arm and idler pulley to relax belt. Ground Drive Belt Hydrostatic Ground Drive Belt Assembly (Disengaged) Reverse the procedure to install the hydrostatic ground drive belt.

  • Page 84: Fuel Filter - Model Mt And Mtl

    1500 hours of operation or more frequently under ex- tremely dusty or dirty conditions. Because the MTEFI has a pressurized fuel system, fuel filter re- placement should be done by a Walker dealer or au- thorized Kohler service dealer.

  • Page 85: Blade Overload Shear Bolts

    After reinstalling the blade, check blade timing by moving blades through one (1) complete revolu- tion. Make sure blade tips pass clear of each other. If timing is incorrect, contact your Walker Dealer. REPLACING/REPAIRING PTO Shear Pin The PTO drive shaft connection to the deck gearbox has a shear pin to provide shock load protection to the mower deck drive.

  • Page 86: Mower Blades

    CHECKING/SERVICING Sharpen Blades instructions. If blades are replaced, always use Walker original equipment blades to ensure safety and optimum performance. The quality and performance of replacement blades offered by other manufacturers cannot be guaranteed, they could be dangerous.

  • Page 87: Adjustments

    Maintenance Instructions ADJUSTMENTS Steering Levers An adjustment range of approximately 3 inches is available on the steering levers - the levers can be adjusted forward or aft depending on the arm length of the operator. The levers can be adjusted by loos- ening the locknut at the pivot point and the locknut holding the lever in position in the adjustment slide.

  • Page 88: Ghs Signal Horn Adjustment (When Horn Sounds At Wrong Time)

    Maintenance Instructions GHS Signal Horn Adjustment (When Horn Sounds at Wrong Time) The vertical position of the Grass-Pak ical to make sure the catcher box does not overfill causing the delivery chute to clog. The vertical po- sition can be adjusted by bending the mounting bracket for the Grass-Pak Position the discharge chute so that it is point- ing straight back.

  • Page 89: Maintenance And Service Record Sheet

    MAINTENANCE AND SERVICE RECORD SHEET DATE SERVICE ENGINE ITEM HOURS ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________ ______________________________________________________________________________________________________________...

  • Page 90: Operator's Notes

    Operator’s Notes...

  • Page 91: Warranty

    HOW TO OBTAIN SERVICE UNDER THIS WARRANTY: Warranty service can be arranged by contacting the dealer where you purchased the mower or by contacting Walker Man- ufacturing Company, 5925 East Harmony Road, Ft. Collins, CO 80528. Proof of the date of purchase may be required to verify warranty coverage.
  • Page 92 0.8g longitudinal directions using calibrated vibra- tion test equipment. WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 FORM NO. 040107 PRINTED IN USA Clear (C), (65 F) <...

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