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Walker MBSY Operator's Manual
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Walker MBSY Operator's Manual

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OPERATOR'S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
Model MBSY
Please Read and Save These Instructions
Beginning S/N: 112057
For Safety, Read All Safety and Operation
P/N 2000-4
Instructions Prior to Operating Machine
Effective Date: 05-23-11

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  • Page 1 OPERATOR’S MANUAL Safety, Assembly, Operating, and Maintenance Instructions Model MBSY Please Read and Save These Instructions Beginning S/N: 112057 For Safety, Read All Safety and Operation P/N 2000-4 Instructions Prior to Operating Machine Effective Date: 05-23-11...
  • 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 Transaxle Lockout Rods _______________ 30 ________________ 1 Hourmeter ___________________________ 30 HIGHLIGHTED INFORMATION _____________ 1 Optional Roll-Over GLOSSARY ____________________________ 1 Protection System (ROPS) ______________ 31 IDENTIFYING NUMBER LOCATIONS ________ 1 Operating Controls ____________________ 32 ENGINE SERIAL NUMBER LOCATION _______ 2 STARTING THE ENGINE _________________ 33 SERVICING OF ENGINE AND ADJUSTING GROUND...
  • Page 4 Table of Contents CHECKING/SERVICING __________________ 55 Engine Cooling System ________________ 55 Coolant Level _______________________ 55 Alternator Belt Tension ________________ 55 Security of Air Filtration Components ____ 56 Battery ______________________________ 56 Electrolyte Level _____________________ 56 Cleaning the Terminals ________________ 56 Charging the Battery __________________ 56 Tire Pressure _________________________ 56 Wheel Nuts Torque ____________________ 56 Sharpen Mower Blades ________________ 57...

  • Page 5: General Information

    Most accidents associated with the oper ation or maintenance of a Walker Mower are caused by • TRANSAXLE transmits and controls power disregarding basic safety precautions or specific from the ground drive belt to the main drive warnings.

  • Page 6: Engine Serial Number Location

    If you have any dif ficulty finding an authorized outlet or obtaining warranty service, please contact our Service Depart ment for assistance: Tractor Serial Number Location Walker Manufacturing Company 5925 E. Harmony Road Fort Collins, CO 80528 1-970-221-5614 Serial Number...

  • Page 7: Specifications

    Cooling Fan Electric radiator cooling fan with reversible self-cleaning action Coolant 50/50 Pre-Mix Antifreeze/Water Air Cleaner Remote mounted Enginaire™ VLR (Walker P/N 5090-1 Primary/5090-3 Safety Filter) ELECTRICAL SYSTEM Battery 12 Volt, 41AH, 340 CCA (Interstate U1-SP40) Charging System Automotive Type Alternator...
  • Page 8 20W-50 Multi-Viscosity Motor Oil (Minimum SL Grade Oil) Transmission Capacity 79 fl oz (2336 ml) Transmission Cooling Cooling Fan Mounted on Drive Pulley Oil Filter P/N 52114 (Walker 2026-6) Ground Travel Speed Forward m.p.h. (km/h) 0-10 (0-16) Infinitely Variable Reverse m.p.h. (km/h) 0-5 (0-8) Infinitely Variable...
  • Page 9 1317 lb (597 kg) Tractor with DSD60 Deck 1372 lb (622 kg) DRIVE BELTS Engine PTO Walker P/N 2230 (Matched Set of 3) Ground Drive Walker P/N 2248 SEAT Contour-Molded, with Nylon Backed Vinyl Cover and Integral Foam Cushion (Suspension)

  • Page 10: Component Identification

    Component Identification NOTE: Control Identification shown in Operating Instructions section. Body Tilt-Up Latch Counterweight Springs and Protective Covers Deck Support Footrests Forward Speed Control (FSC) Tilt-Up Hook Friction (Not Visible) Adjustment Height Adjustment Arm (Cutting Height Adjustment) Deck Support Arm (Not Visible) Deck Height Adjustment...
  • Page 11 Component Identification Tailpipe Footrests Spread Axle Tail Wheel Left Hand Fuel Tank Fuel Pickup Drive Wheel and Cap Line Muffler Rear View and Left Side View...
  • Page 12 Component Identification LH Transmission Steering Levers RH Transmission Control Arm Dampeners Control Arm LH Transaxle RH Transaxle LH Transaxle RH Transaxle Lockout Rod Lockout Rod Parking Brake PTO Clutch Battery Lever Clutch Overflow Hose Linkage Fuel Tank Cap Transaxle Oil Radiator Cap Expansion Reservoirs...

  • Page 13: Safety Instructions

    An IMMEDIATE hazard that WILL result in tion, maintenance, or safety, please contact your au- severe personal injury or DEATH, if warn ing thorized Walker Mower dealer or call Walker Manu- is ignored and proper safety precau tions facturing Company at (970) 221-5614.
  • Page 14 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- spe cifically instructed to do so.
  • Page 15 Safety Instructions - Operating In case the transmission drive belt breaks during operation, and if the machine is on a slope, the   WARNING machine will freewheel down the slope. To main- tain control, immediately (1) Release the steer- If equipped with optional ROPS: ing levers and simultaneously (2) Move the FSC to the NEUTRAL-PARK position.
  • Page 16 Safety Instructions - Operating 18. If the cutting blades strike a solid object or the   DANGER machine begins to vibrate abnormally, immedi- ately disengage the blade clutch (PTO), stop the engine, and wait for all moving parts to Do not mow or drive the tractor within stop.

  • Page 17: Maintenance

    Safety Instructions - Maintenance To prevent accidental starting of the engine when 12. Use care when charging the battery or per- servicing or adjusting the machine, remove the forming maintenance on the battery and electri- key from the ignition switch. cal system: To reduce fire hazards, keep the engine free of Make sure the battery charger is unplugged...

  • Page 18: Operating

    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. 8600-12 Location: Engine Part Number: 8600-12...
  • Page 19 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. GLOW PLUGS NOT CHARGING 2807-4...
  • 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. 8600-2 Location: Flex Coupler Guard in Front of Engine Part Number: 8600-2...
  • 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. 5685-3 Location: ROPS Roll Bar (Optional) Part Number: 5685-3...
  • 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. Throttle Warning –...

  • Page 23: Assembly Instructions

    Assembly Instructions SETUP INSTRUCTIONS   DANGER Walker Mowers are shipped partially assembled to our distribution network, and are typically assembled Battery electrolyte is a poisonous and cor- by the selling dealer. For any additional assembly rosive sulfuric acid solution. besides the following, contact your Walker dealer.

  • Page 24: Battery Charging

    Assembly Instructions Battery Charging Mower Deck Assembly Deck Caster Wheels Installation   DANGER Remove the bolts and washers from each deck caster wheel. BATTERIES PRODUCE EXPLOSIVE GASES Install wheel on fork using bolts and washers. • Charge the battery in a well-ventilated area, so that gases produced while charg- NOTE: Valve stem and grease zerk should face ing can dissipate.

  • Page 25: Pto Shaft Guard Installation

    Assembly Instructions Mower Deck Installation on Tractor Attach Shield Deck Installation Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation pho- to for location of deck support arm. Deck Discharge Shield Installation PTO Shaft Guard Installation Deck Support Position the shaft guard as shown and mount with Arms...
  • Page 26 Assembly Instructions Quick Coupler Spring-Loaded Coupler Ring Installation Tool In Fully Forward Position PTO Tube Pull Back Spring-Loaded Coupler Ring Coupler Ring “Locked” Position Quick Coupler Installation Tool Raise the mower body (instead of lifting the front of deck) and clip the counterweight springs to the Reaching under the tractor, join the PTO tube to receptacle on front of body.

  • Page 27: Deck Leveling

    Assembly Instructions Deck Leveling Check the side-to-side level. Rotate the out side blades sideways and measure the distance Position mower on a smooth, level surface. Set from blade tip to ground on each side. the cutting height to the highest position - 5 in. measurements vary more than 1/8 in.

  • Page 28: 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 to make sure the mower is properly prepared and ready LUBRICATION for Checking Engine Crankcase Oil for operation.
  • Page 29 Assembly Instructions CHECK FUNCTIONS OF WARNING LIGHTS   CAUTION AND WARNING HORN Turn the ignition key to the RUN position. Low Engine Do not operate machine with locking arms Oil Pressure Warning Light, Battery Charging Sys- disengaged. tem Malfunction Indicator Light, and Warning Horn should all operate, indicating normal function.

  • Page 30: Operating Instructions

    Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND Prolonged cranking can damage the starter motor FUNCTION and shorten battery life. Release the key when the engine starts, and it will return to the RUN position. To stop the engine, rotate the key counterclockwise   CAUTION to the “O”...

  • Page 31: Engine Throttle

    Operating Instructions Engine Throttle Forward Speed Control (FSC) Forward Speed Control (FSC) has two functions: The throttle control lever (red knob) is located on the One is to set forward travel speed, and the other is to left side of the seat and is used to control engine establish the NEUTRAL-PARK position.

  • Page 32: Steering Levers

    Operating Instructions Steering Levers 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: Circuit Breakers

    Operating Instructions Circuit Breakers IMPORTANT: Continued operation of the engine with an illuminated oil pressure warning light MAY Two manual reset circuit breakers are located on the cause severe engine damage (if a low oil pressure front body. Each has a button that pops out if the condition exists).

  • Page 34: Transaxle Lockout Rods

    This reminder is only used one time. Rods *** In normal operating conditions, oil changes in 100-hour intervals are acceptable. Walker and Hydro Lockout Rod Location 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 35: Optional Roll-Over Protection System (Rops)

    Operating Instructions Optional Roll-Over Protection System (ROPS) To Lower the ROPS Roll Bar: Loosen the two (2) tension knobs.   WARNING Remove the two (2) hitch pins. The ROPS may offer enhanced operator Remove the two (2) locking pins. protection in the event of a roll-over type accident, but only if used correctly.

  • Page 36: Operating Controls

    Operating Instructions The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers FORWARD SPEED LEFT WHEEL RIGHT WHEEL CONTROL LEVER (FSC) STEERING LEVER STEERING LEVER Forward Position Full Forward (No Control Change) Ground Speed Position Neutral-Park Position Intermediate Ground Speed Position...

  • Page 37: Starting The Engine

    Failure to fol low Before operating the mower, read and un- these guidelines can damage the starter motor derstand all Safety Instructions and Operat- and shorten battery life. Contact your Walker ing Instructions. dealer or authorized Yanmar dealer for addition- al help.
  • Page 38 ♦ Remember it is not necessary to hold the steering levers forward (a unique Walker NOTE: If the FSC lever will not stay in the se- feature); always PULL on the levers for lected position, the friction lock needs to be ad- steering or for reverse motion of the mower.

  • Page 39: Engaging The Mower

    Operating Instructions ENGAGING THE MOWER Pull Steering Levers with Set the engine throttle at about 1/3 speed. Do Left Hand not attempt to engage the blade clutch at high engine speeds. This will drastically short- Keep Feet on en drive belt life. Use only moderate engine Footrest when speed when engaging the blade clutch.

  • Page 40: Stopping The Machine

    If the brake system malfunctions and the blades do not stop within five (5) seconds, the brake should be repaired or replaced before operating the mower. Contact your Walker dealer. 4. Turn the ignition switch OFF.   WARNING Blade Clutch Disengaged Remove the key from the ignition switch when leaving the mower unattended.

  • Page 41: Fuel Selector Valve

    Operating Instructions FUEL SELECTOR VALVE Cutting height is adjusted from operators seat using the height pedal to assist in raising the deck while The tractor is equipped with dual fuel tanks. A fuel positioning the height adjustment lever and hitch selector valve regulates which tank is being utilized.

  • Page 42: Transaxle Lockouts

    Operating Instructions TRANSAXLE LOCKOUTS RECOMMENDATIONS FOR MOWING IMPORTANT: DO NOT TOW this mower faster than   DANGER 2 mph (3.2 km/h) with the transmission lockout en- gaged. Towing can produce excessive internal pressure and damage the transaxle(s). Do not mow around overhanging tree To move the mower with the engine NOT running branches or bushes at the same height as (dead battery, maintenance, etc.), the transaxles...
  • Page 43 Operating Instructions • When mowing, operate the engine at full throttle Discharge for the best cutting action. Mowing with a lower en- Shield gine RPM causes the mowing blade to not cut clean and tear the grass. The engine is designed to be operated at full speed.

  • Page 44: Recommendations For Tilt-Up Deck Operation/Transport

    Operating Instructions RECOMMENDATIONS FOR TILT-UP DECK   DANGER OPERATION/TRANSPORT To avoid potential deck and/or tractor damage while using the tilt-up deck, the following recommenda- Do not mow or drive the tractor within tions are offered: 5 feet (1.5 meters) of an embankment or retaining wall with drop off.

  • Page 45: Maintenance Instructions

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

  • Page 46: Important Tips For Care Of The Yanmar Engine

    Maintenance Instructions YANMAR TIPS IMPORTANT TIPS FOR CARE OF THE YANMAR • Never mix different types/colors of coolants. ENGINE • Maintain proper fluid levels in the radiator and Fuel System overflow tank. • Fuel must be clean--free from water, dirt and or- Air Cleaner System ganic material.

  • Page 47: Lubrication

    Maintenance Instructions LUBRICATION LUBRICATION IMPORTANT: DO NOT operate engine without sufficient oil supply in the crankcase. DO NOT operate with oil level below the LOW mark or   WARNING above the FULL mark on the dipstick. DO NOT attempt to lubricate the machine with the engine running.

  • Page 48: Changing Engine Crankcase Oil/Oil Filter

    Maintenance Instructions LUBRICATION Changing Engine Crankcase Oil/Oil Filter Change the engine crankcase oil after every 100 hours of operation and the oil filter after every 200 hours of operation as follows: Park the mower on a level surface with the en- gine stopped.

  • Page 49: Mower Deck Spindle Lubrication

    Maintenance Instructions LUBRICATION Mower Deck Spindle Lubrication Grease Fitting and Oil Point Lubrication Lubricate the grease fittings and oil points after every Lubricate each deck spindle grease fitting every 25 25 hours of operation. Lubricate more often when hours. Use SAE general purpose lithium or operating in dusty or dirty conditions.
  • Page 50 Maintenance Instructions LUBRICATION Ident Lubrication Ident Lubrication Location Type Places Location Type Places Deck Caster Wheel Fork Pivot Grease Clutch Arm Pivot Grease Deck Caster Wheel Bearing Grease Transaxle Oil Reservoir Oil Front Deck Lift Pivot Grease Throttle Control Cable Ends Oil Rear Deck Lift Pivot Grease Engine Dipstick Pivot Assembly, Tilt-Up Deck Grease Tail Wheel Caster Fork Pivot Grease Deck Support Arm Socket Grease Rear Wheel Pivot Grease Steering Lever Pivot Grease Rear Wheel Bearing Grease Deck-to-PTO Coupling Grease Engine / Oil Filler...
  • Page 51 Maintenance Instructions LUBRICATION 18 & 27 Chassis and Deck Lubrication Points...

  • Page 52: Transaxle Oil And Filter Change

    Maintenance Instructions LUBRICATION Transaxle Oil and Filter Change Before reinstalling the elbows, screw the locking nut on the elbows down until they are snug (the Change the transaxle oil after the initial break-in pe- o-ring on the elbow will be to the bottom of the riod of 75-100 hours.

  • Page 53: Cleaning

    If a pressure washer is used on the ex- IMPORTANT: Use only Enginaire™ air filter elements posed working parts, avoid water on the for replacement (Walker 5090-1 or 5090-3). Aftermar- electrical parts and the engine cooling ket filters may not seal properly or filter efficiently.
  • Page 54 Maintenance Instructions CLEANING NOTE: Use care when cleaning the filter ele- ment. The filter element and/or seal surface may Air Filter be damaged by tapping too hard or hitting on an Restriction Gauge uneven surface or sharp edge. Washing the ele- ment in water or cleaning solution is not recom- mended.

  • Page 55: Engine Cooling System

    Maintenance Instructions CLEANING Engine Cooling System Radial Sealing Canister Radiator Screen and Cooling Fins Surface To prevent the engine from overheating and possible engine damage, clean grass clippings, chaff, and dirt from the fine mesh radiator intake screen daily. In certain mowing conditions (dry grass, leaves, tree “cotton”, etc.), it may be necessary to check and clean the screen several times during use to prevent...

  • Page 56: Flushing Radiator And Changing Coolant

    Maintenance Instructions CLEANING 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 Yanmar Owner’s Manual for location of the drain cocks).
  • Page 57 Maintenance Instructions CLEANING Footrest Tilt-Up Hook and Locking Latch Connected Finger Deck Plate Tilt-Up Latch Hood Latch Assembly Tilt-Up Hook Footrest Installation   CAUTION Deck Secured in Tilt-Up Position Do not operate machine with deck locking Clean grass buildup underneath the deck using arms disengaged.

  • Page 58: Transaxle Housing

    Pay close attention to any oily dirt fan(s) if blades are missing or damaged. build up on the transaxle housings. This may be the result of an oil leak. If an oil leak is noticed, contact your local Walker dealer. Cooling Fins Cooling...

  • Page 59: Checking/Servicing

    Maintenance Instructions CHECKING/SERVICING CHECKING/SERVICING IMPORTANT: The coolant solution of antifreeze and distilled water must be thoroughly pre-mixed before putting it in the engine (adding pure antifreeze into   DANGER the radiator may cause damage to the engine by causing overheating). To prevent accidental starting of the en- Alternator Belt Tension gine when servicing or adjusting the ma- chine, remove the key from the ignition...

  • Page 60: Security Of Air Filtration Components

    Maintenance Instructions CHECKING/SERVICING Security of Air Filtration Components Charging the Battery NOTE: The following inspection is only an external   DANGER inspection and should be done without “disturb- ing” the filtration components. On a daily basis, visually inspect the external condi- BATTERIES PRODUCE EXPLOSIVE tion of the complete air cleaner system.

  • Page 61: Sharpen Mower Blades

    Maintenance Instructions CHECKING/SERVICING Sharpen Mower Blades If the blade cutting edge is dull or nicked, it should be sharpened. Remove blades for sharp- Check mower blade(s) for straightness, sharp- ening by grasping the end of the blade using a ness, condition of the cutting edge, and balance rag or a thick, padded glove, while loos ening and every 10 hours of operation (or more often when removing the bolt and washer that mounts the...

  • Page 62: Drive Belts

    Refer to REPLAC- -- adjust or repair the brake before operating the ING/REPAIR ING the Drive Belts in this section. mower. Contact your Walker dealer for this service or refer to the Walker Service Manual. Fuel Lines and Clamps Every year, inspect the fuel lines from the tanks to engine for deterioration or damage.

  • Page 63: Safety Switch System

    (friction). If the FSC lever move- or operating, a safety interlock switch may be mal- ment is “stiff”, the friction needs to be de- functioning. Contact your Walker dealer for trouble- creased. shooting and/or replacement. If the FSC friction lock needs to be adjusted, refer to •...

  • Page 64: Replacing/Repairing

    Maintenance Instructions REPLACING/REPAIRING REPLACING/REPAIRING Drive Belts There are five (5) individual drive belts on the ma-   DANGER chine: • Engine/PTO Belt (Matched Set of 3) To prevent accidental starting of the engine when replacing parts or repairing • Ground Drive Belt the machine, remove the key from the •...

  • Page 65: Pto Belt

    Maintenance Instructions REPLACING/REPAIRING PTO Belt Roll the belt off the pulley and remove the To remove the PTO belt: belt. Remove wire lock pins (4), open belt guards. Idler Arm Wire Lock Pins Upper LH Right Hand Guard Guard Lower LH Wire Lock Pin Guard PTO Belt...

  • Page 66: Ground Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Ground Drive Belt To remove the ground drive belt: Raise the spring-loaded idler to relax belt. Remove belt tensioner stop wing nut. Slide belt off pulleys, then release the idler. Remove Belt Tensioner Tension Ground Drive Stop Wing Nut Spring Belt RH Transaxle...

  • Page 67: Alternator Belt

    Maintenance Instructions REPLACING/REPAIRING Alternator Belt Remove the flex coupling center section To remove the engine alternator belt: (P/N 2351-4) by removing the six (6) rubber iso couplers (12 bolts, flat washers, star Remove the flex coupling guard (5 bolts). lock washers). Bolt Flex Coupling Guard...
  • Page 68 Maintenance Instructions REPLACING/REPAIRING Loosen the alternator mounting pivot bolt NOTES: and the alternator bracket tensioner bolt. • Inspect the rubber iso mounts (P/N 2351-1) for Pivot the alternator as shown to relax and cracking or signs of deterioration and replace as remove belt.

  • Page 69: Fuel Filter

    Fuel Filter Mower Blades Mower blades are removed and remounted as de- Model MBSY has two (2) fuel filters. Replace both scribed in the Sharpen Mower Blades instructions the in-line filter and the Yanmar filter element every (refer to CHECKING/SERVICING to Sharpen Mow- 400 hours of operation.
  • Page 70 Reinstall the blades following procedure from Sharp- en Mower Blades instructions. If blades are re- placed, 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 guar- anteed, they could be dangerous.

  • Page 71: Replacing Deck Drive Belt

    Maintenance Instructions REPLACING/REPAIRING Replacing Deck Drive Belt From a position on the LH side of the deck, grasp belt midsection and pull to compress To remove the deck drive belt: the belt tensioner springs and move the tensioning pulley inward. The belt will then Remove deck footrest and two (2) covers slip off the LH spindle pulley and can be over the RH and LH blade spindles.

  • Page 72: Adjustments

    Maintenance Instructions ADJUSTMENTS ADJUSTMENTS Adjust the position of the RH lever by turning the stop bolt in the Speed Control Actuator in or out. Transmission Control Turning the stop bolt in will make the RH lever move back, and turning it out will make it move IMPORTANT: The proper adjustment of the tran- forward.

  • Page 73: Neutral Position Adjustment

    Maintenance Instructions ADJUSTMENTS Step 3 - Neutral Position Adjustment With the Forward Speed Control (FSC) in NEU- TRAL-PARK, the lever should be straight up. Adjust by loosening the jam nuts on the FSC Rod and turn the rod to attain the straight up position. Tighten the jam nuts.

  • Page 74: Full Forward Speed Adjustment

    Maintenance Instructions ADJUSTMENTS With the FSC in NEUTRAL-PARK, start the en- gine. (Op erate first at idle and then normal op- T-Handle Maximum erating speed) and check for movement of Hex Wrench Speed Tracking drive wheels. Adjustment NOTE: If the engine will not start, check and ad just the neutral safety switch (refer to Step 6 - FSC Switch - Neutral Adjustment).

  • Page 75: Fsc Switch - Neutral Adjustment

    Maintenance Instructions ADJUSTMENTS Step 6 - FSC Switch - Neutral Adjustment Step 7 - Forward Speed Control Friction Adjustment Place the FSC in NEUTRAL-PARK position. Loosen mounting screws and adjust switch up or down accordingly. FSC Position with Levers FSC Switch Place the FSC in the full FORWARD position and pull both steering levers back;...

  • Page 76: Blade Clutch (Pto)

    Maintenance Instructions ADJUSTMENTS Blade Clutch (PTO) Adjust the length of the clutch link to achieve a bolt head clearance of 1/4 in. to 5/16 in. (6.35 mm to Clutch Engagement/Belt Tension 7.94 mm) with the clutch engaged. To adjust length: remove ball joint from clutch arm, shorten the clutch The clutch engagement and PTO belt tension are link to increase this measurement or lengthen the...

  • Page 77: Clutch Disengagement/Brake Action

    Maintenance Instructions ADJUSTMENTS Use the following procedures to check and adjust Clutch Disengagement/Brake Action clutch disengagement and brake action:   WARNING Step 1 - Idler Pulley Maximum Travel Adjustment Loosen the brake band adjustment nut allowing It is important to check and maintain blade clutch pivot stop arm and stop bolt to make contact brake action for safe operation of the ma- (refer to Blade Brake Band Adjustment illustra-...

  • Page 78: Blade Brake Band Adjustment

    Maintenance Instructions ADJUSTMENTS Step 2 - Blade Brake Band Adjustment After the maximum pulley travel is set, adjust the working travel of the clutch idler pulley by adjusting the brake band nut and make the following adjust- ment as needed: Blade Brake Adjust the blade brake band, using the adjust- Band...

  • Page 79: 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, transportation charges prepaid.
  • Page 80 WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 • (970) 221-5614 © FORM NO. 052311 PRINTED IN USA www.walkermowers.com 2012 WALKER MFG. CO...

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