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Walker MS (13 HP) Owner's Manual

13hp rider lawnmover
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OWNER'S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
Model MS (13 HP)
™
Please Read and Save These Instructions
Effective Date: 10-01-03
For Safety, Read All Safety and Operation
P/N 5000-11
Instructions Prior to Operating Machine
Price $5.00

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Summary of Contents for Walker MS (13 HP)

  • Page 1 OWNER’S MANUAL Safety, Assembly, Operating, and Maintenance Instructions Model MS (13 HP) ™ Please Read and Save These Instructions Effective Date: 10-01-03 For Safety, Read All Safety and Operation P/N 5000-11 Instructions Prior to Operating Machine Price $5.00...
  • 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 ___________________ 3 TRANSMISSION_________________________ 3 BLADE DRIVE __________________________ 4 TIRE SIZE ______________________________ 4 TIRE PRESSURE ________________________ 4...
  • Page 4 Table of Contents Maintenance Instructions MAINTENANCE SCHEDULE CHART _______ 40 IMPORTANT TIPS FOR CARE OF THE KAWASAKI ENGINE ____________________ 41 Fuel System _________________________ 41 Starting _____________________________ 41 Cooling System ______________________ 41 Air Cleaner __________________________ 41 Oil _________________________________ 41 LUBRICATION _________________________ 42 Engine Oil ___________________________ 42 Engine Break-In Oil __________________ 42 Checking Engine Crankcase Oil Level ___ 42...

  • Page 5: General Information

    Walker Manufacturing recommends that any ser- vice requiring special training or tools be performed by an authorized Walker Mower Dealer. There are several general practices to be aware of in the area of safety. Most accidents associated with the oper-...

  • Page 6: Engine Serial Number Location

    If you have any difficulty finding an authorized outlet or obtaining warranty service, please contact our Ser- vice Department for assistance: Walker Manufacturing Company 5925 E. Harmony Road Fort Collins, CO 80528 1-970-221-5614...

  • Page 7: Specifications

    Specifications MODEL ENGINE Manufacturer/Model Displacement HP (@ 3600 RPM) Max. RPM (No Load) Governed RPM Max. Torque [ft-lb (N m) @ RPM] Idle RPM Spark Plug Type Spark Plug Gap Crankcase Capacity Crankcase Lubricant Fuel Tank Capacity Fuel Cooling System ELECTRICAL SYSTEM Battery Charging System...

  • Page 8: Blade Drive

    Specifications MODEL TRANSMISSION (continued) Transmission Fluid Factory Service Transmission Fluid Capacity Transmission Cooling 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...

  • Page 9: Mower Deck

    490 lb (224 kg) 565 lb (256 kg) 635 lb (288 kg) 670 lb (304 kg) 715 lb (324 kg) 735 lb (340 kg) Walker P/N 5230-2 Gates BX30 Walker P/N 5232 Gates 6847 Walker P/N 5234-1 Gates 6935 Walker P/N 5234-2...

  • Page 10: Ghs System

    Specifications MODEL GHS SYSTEM (Optional) Blower Blower Brake Max. Blower Speed Grass Catcher Capacity Full Signal ® Powerfil SEAT FRAME/BODY CONSTRUCTION Frame Body Deck GHS Catcher and Chutes NOTE: The manufacturer reserves the right to make changes in specifications shown herein at any time without notice or obligation.

  • Page 11: Component Identification

    Component Identification Grass Handling System 6.7 Bushel Catcher Catcher Door Safety Latch Anti-Scuff Roller Catcher Lift/ Dump Handle Counterweight Spring and Protective Cover Transmission Control Rod Adjustment Nut (RH) Deck Lift Handle (Cutting Height Adjustment) Deck Support Arms Footrests Caster Wheels Front View and Right Side View NOTE: Control Identification shown in Operating...
  • Page 12 Component Identification Catcher Door Gas Spring Protective Cover Catcher Lift/ Dump Handle Left Hand Drive Wheel Muffler Exhaust Opening Removable Grass Catcher Door Catcher Screen Gas Spring (Not Visible) Oil Filter Fuel Shut-off Valve Fuel Filter Rotating Engine Screen Rear View and Left Side View Catcher Exhaust Deflector...
  • Page 13 Component Identification Air Cleaner Air Cleaner Dust Cup Rubber Bumper Body Support Air Restriction Indicator Air Intake Hose Fuel Tank Carburetor Fuel Tank Fuel Level Indicator Starter Solenoid Muffler GHS Blower Tractor PTO Gearbox RH Transmission Lockout Lever RH Hydrostatic Transmission Positive (+) Battery Cable...

  • Page 14: 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 15: 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 16: Maintenance

    Safety Instructions Watch for holes, rocks, and roots in the terrain and for other hidden hazards. When mowing tall grass, mow higher than desired to expose any hidden obstacles. Then, clean the area and mow to the desired height. 10. Avoid sudden starts or stops. Before backing the machine up, look to the rear to be sure no one is behind the machine.
  • Page 17 Safety Instructions Keep all nuts, bolts, and screws tight to ensure the machine is in a safe, working condition. Check the blade mounting nuts frequently, mak- ing sure they are tight. Perform only maintenance instructions de- scribed in this manual. Unauthorized main- tenance operations or machine modifications may result in unsafe operating conditions.

  • Page 18: 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. Top Rear of Fuel Tank (5855) Underside of Body (5861) Top of Blower Housing (5819)
  • 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. Each End of Mower Deck (5808) SD Deck Discharge Shield (5848) LH Fender (5802-2)

  • Page 20: 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 21: Battery Charging

    Assembly Instructions Battery Charging DANGER BATTERIES PRODUCE EXPLOSIVE GASES Charge the battery in a well-ventilated area, so that gases produced while charg- ing can dissipate. Keep sparks, flames, and smoking mate- rials away from the battery at all times. Make sure the battery cap vents are open after the battery is filled with acid (check manifold vent on each cap).

  • Page 22: Deck Discharge Chute Installation

    Assembly Instructions Grease Fitting Locations Spacer Washer Axle Spacer Tube Deck Caster Wheel Installation NOTE: If semi-pneumatic wheels are installed, make sure the spacer washers fit over the spacer tube and are not caught between the fork and the end of the tube. The washers should move freely on the axle spacer tube.

  • Page 23: Mower Deck Lnstallation On Tractor

    Assembly Instructions Attach Spring Tilt-Up Spring and Roller Wheel Installation on Rear Discharge Deck Mower Deck lnstallation on Tractor Deck Installation Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation photo for location of deck support arm. Engage the deck carrier frame tube sockets on the tractor support arms (refer to Discharge Chute and PTO Shaft Guard Installation photo...
  • Page 24 Assembly Instructions Spring Tension Adjustment Nut Located Under Lower Spring Hook (not visible) Counterweight Springs Clip Onto Body With Body Tilted Up Deck Counterweight Spring Installation Raise mower body (instead of lifting the front of deck) and clip the counterweight springs to the receptacle on front of body.

  • Page 25: 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 26: 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 27 Assembly Instructions CHECK GEAR AXLE OIL LEVEL (if equipped) Refer to Gear Axle Lubrication in Maintenance Instructions. INSPECT THREE (3) DRIVE BELTS Engine, PTO, and Hydrostatic Ground Drive. CHECK HYDROSTATIC TRANSMISSION OIL LEVEL Refer to LUBRICATION for Checking Hydrostatic Transmission Fluid Level in Maintenance Instruc- tions.

  • Page 28: Operating Instructions

    Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND FUNCTION 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 29: Engine Choke

    Operating Instructions Engine Choke The choke control lever (black knob) is located on the left side of the seat. To start a cold engine, move the choke control forward to the ON position. After engine starts, move choke control toward the OFF position, keeping enough choke to allow the engine to run smoothly as it warms up.

  • Page 30: Parking Brake

    Operating Instructions Parking Brake The parking brake functions by locking a pin into the hydrostatic transmission pinion gear teeth. Moving the lever FORWARD engages the parking brake; moving the lever BACKWARD releases the brake. IMPORTANT: Stop the tractor completely before engaging the parking brake.
  • Page 31 Operating Instructions The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers LEFT WHEEL RIGHT WHEEL FORWARD SPEED STEERING LEVER STEERING LEVER CONTROL LEVER (FSC) Full Forward Forward Position Ground Speed (No Control Change) Position Intermediate Neutral-Park Ground Speed Position Position...

  • Page 32: Starting The Engine

    Operating Instructions STARTING THE ENGINE CAUTION Before operating the mower, read and un- derstand all Safety Instructions and Operat- ing Instructions. WARNING NEVER run the engine in an enclosed or poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
  • Page 33 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 34: Engaging The Mower

    Operating Instructions NOTE: Smooth action on the steering levers will produce smooth mower operation. Remem- ber to keep the engine and ground speed slow until learning the control response. The FSC may be adjusted forward for faster ground speed and backward for slower ground speed.

  • Page 35: Stopping The Machine

    Operating Instructions STOPPING THE MACHINE Slow the engine to idle; put the throttle in the IDLE position. Pull the steering levers to the NEUTRAL-PARK position and then move the FSC lever backward to the NEUTRAL-PARK position. Disengage the blade clutch. IMPORTANT: DO NOT disengage the blade clutch with high engine speed (above 1/2 throttle) since the brake action on the blade drive...

  • Page 36: Transmission Lockout

    Operating Instructions TRANSMISSION LOCKOUT IMPORTANT: DO NOT TOW this mower with the transmission lockout engaged. Towing can produce excessive internal pressure and damage the transmission. To move the mower with the engine NOT running (dead battery, maintenance, etc.), the hydrostatic transmissions are unlocked (released).

  • Page 37: Recommendations For Tilt-Up Deck Operation/Transport

    Operating Instructions Make sure the mower is leveled properly for a smooth cut. Refer to Deck Leveling in Assembly Instructions . Use an alternating stripe mowing pattern for best appearance and vary the direction of the stripe each time the grass is mowed to avoid wear patterns in the grass.

  • Page 38: 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 Delivery Chute Clutch Deck Discharge Chute...

  • Page 39: General Information

    Operating Instructions General Information The Grass Handling System (GHS) consists of a rear discharge mower deck connected to a 9 in. (23 cm) blower and a rear mounted grass catcher with 6.7 bushel (238 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 40: 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 wire, and make sure all movement has stopped before attempt- ing to unclog.

  • Page 41: Using The Tilt-Up Deck

    Operating Instructions Check that the openings in the air exhaust screen in the grass catcher are not plugged. If the screen is clogged, refer to Cleaning the GHS Exhaust Screen in this section. Remember, anything that restricts airflow or material flow along the entire path from the mower deck to the grass catcher can cause clogging.

  • Page 42: 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 43 Operating Instructions Tailgate Door Handle Catcher Dump Handle Hook Bag on Bumper Positioning Dump Bag on Catcher Dumping Catcher into Dump Bag Close the door by holding the door handle with the left hand and releasing the safety latch on the door hinge mechanism with the right hand.

  • Page 44: Maintenance Instructions

    Maintenance Instructions MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MS Service Item Check Engine Crankcase Oil Level Check/Clean Engine Air Cooling System* Clean Grass Buildup Under Deck Clean GHS Exhaust Screen* Clean GHS Blower* Service Mower Blades Check Security of Air Filtration Components Check Air Filter Restriction Gauge Lubricate Grease Fittings and Oil Points* Check Battery Electrolyte Level...

  • Page 45: Important Tips For Care Of The Kawasaki Engine

    Maintenance Instructions IMPORTANT TIPS FOR CARE OF THE KAWASAKI ENGINE Fuel System Fuel must be clean - free from water, dirt, and or- ganic material. Clean the fuel filter on a regular basis and when contamination is suspected or found in the fuel. Starting Start engine with the throttle advanced off idle (1/4 to 1/2 throttle).

  • Page 46: Lubrication

    Maintenance Instructions LUBRICATION WARNING DO NOT attempt to lubricate the machine with the engine running. Disengage the PTO clutch, shut off the machine, and re- move the ignition key. Proper lubrication is an important maintenance pro- cedure. It reduces wear and makes the machine quieter and easier to operate.

  • Page 47: Changing Engine Crankcase Oil/Oil Filter

    Maintenance Instructions Changing Engine Crankcase Oil/Oil Filter Change the engine crankcase oil after every 50 hours of operation and the oil filter after every 100 hours of operation as follows: Park the mower on a level surface with the engine stopped. The engine oil should be warm before draining.
  • Page 48 Maintenance Instructions Ident Location Lubrication Ident Type Places LUBRICATION Lubrication Location Type Gearboxes are permanently lubricated and sealed requiring no scheduled lubrication. Oil level should be checked only when an oil leak is noted. Refer to Mower Deck Gear- box Lubrication in this section. Grease every eight (8) hours.
  • Page 49 Maintenance Instructions 28 & 38 29 & 37 Chassis and Deck Lubrication Points LUBRICATION...

  • Page 50: Mower Deck Gearbox Lubrication

    Maintenance Instructions Mower Deck Gearbox Lubrication The mower deck gearboxes (tee gearbox and blade drive gearboxes) are connected as a unitized assembly, and oil flows freely between them. The gearboxes are permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be checked every 25 hours for indication of an oil leak;...

  • Page 51: Gear Axle Lubrication

    Maintenance Instructions Gear Axle Lubrication The gear axle oil lubrication is SAE 80W-90 (API GL-5) gear lube. Check the axle oil level after every 100 hours of operation by removing the oil level plug. If additional oil is needed, remove the breather vent on top of ax- le and fill until oil is at the level plug.

  • Page 52: Changing Hydrostatic Transmission Fluid

    -- 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 Canister Radialseal™...
  • Page 53 Maintenance Instructions Push Button to Reset Indicator After Service Air Restriction Gauge Air Restriction Gauge Location Clean and inspect the paper element after every 100 hours of service and replace the element yearly or after six (6) cleanings (or when dirty or damaged).

  • Page 54: Fuel Filter

    Maintenance Instructions Install the cover with the word "TOP" properly oriented to the top of the canister. Give the cover a slight twist as it reaches the canister to make sure the tab inside the cover goes into a slot, otherwise the cover will not fit properly. Make sure both the top and bottom cover latches are securing the cover in place.

  • Page 55: Cylinder Head Cooling Fins

    Maintenance Instructions Rotating Engine Air Intake Screen Engine Air Intake Screen 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...

  • Page 56: Grass Buildup In Mower Housing

    Maintenance Instructions Grass Buildup in Mower Housing DANGER Before raising or removing the mower deck for cleaning, stop the engine, remove the ignition key, and disconnect the spark plug wire. Raise the deck lock lever handle on each side of the carrier frame and pull out to release carrier frame for tilting action.

  • Page 57: Ghs Exhaust Screen

    Maintenance Instructions Use a pressure washer or water spray, and direct the spray inside the blower housing against the blower blades. Water pressure will cause the blower wheel to begin to spin, and the combination of spinning action and water will effectively wash the inside of the housing.

  • Page 58: Checking/Servicing

    Maintenance Instructions 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 wire. Security of Air Filtration Components NOTE: The following inspection is only an external inspection and should be done without “disturb- ing”...

  • Page 59: Tire Pressure

    Maintenance Instructions Check the battery charge by measuring the specific gravity of electrolyte; if specific gravity is less than 1.225, the battery will need to be charged as follows: Charge the battery at 15 amps for 10 minutes. DO NOT exceed 20 amps maximum recom- mended charging rate.

  • Page 60: Drive Belts

    Maintenance Instructions Sharpen at Original 30° Angle 30° Do Not Grind or Sharpen on Underside Mower Blade Profile For Sharpening Blade Balancer Blade Balanced on Magnetic Wall-Mounted Balancer Mount the blade with wing tips pointing up into the housing. Reinstall the blade, washer, lock washer, and nut.

  • Page 61: Blade Brake Action

    Maintenance Instructions Blade Brake Action WARNING It is important to check and maintain blade brake action for safe operation of the ma- chine. Check the function of the cutter blade brake (and blower brake on GHS models) by engaging the blade clutch (PTO), operating the engine at full throttle, then disengaging the clutch and measuring how quickly the blades stop.

  • Page 62: Engine Belt

    Maintenance Instructions Engine Belt To remove the engine belt: Relax the belt by depressing the spring- loaded idler arm. Compound Tension Spring Reverse the removal procedure to replace the engine belt. Compound Tension Spring Pulley Engine Belt (Disengaged) Pulley Engine Belt (Engaged) REPLACING/REPAIRING Roll the belt off the compound pulley and remove the belt.

  • Page 63: Pto Drive Belt

    Maintenance Instructions PTO Drive Belt To remove the PTO drive belt: Remove the engine belt, as described in previous section. Remove 1/4-20 x 3/4 bolt locating belt guide on gearbox pulley and rotate guide to clear belt. Remove Bolt and Rotate Belt Guide to Clear Belt Engage Clutch Clutch Idler Pulley Blade Clutch...

  • Page 64: Ground Drive Belt

    Maintenance Instructions Ground Drive Belt To remove the ground drive belt: Raise the spring-loaded idler to relax belt. Raise Idler Pulley to Relax Belt Reverse the procedure to install the ground drive belt. Idler Pulley Belt Tightener Arm Tension Spring Hydrostatic Drive Pulley Ground Drive Belt Assembly (Disengaged)

  • Page 65: Blade Overload Shear Bolts

    U-Joint Shaft Assembly Cotter Pin PTO Shear Pin IMPORTANT: Use only Walker P/N 8067-13 shear pins for replacement to provide proper shock protection -- these pins are hardened to shear under a specific amount of load. Reinstall the PTO shaft guard.

  • Page 66: Mower Deck Gearbox Replacement

    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 67: Ghs Blower Assembly

    Maintenance Instructions Position the gear drive assembly on the deck and install the 3/8-16 bolts mounting the entire assembly. Leave the mount bolts finger-tight. 10. Torque all the connector tube bolts to 80 in-lb (9 N m); then tighten the deck mount bolts. NOTE: This fastener tightening sequence aligns the gearbox assembly with the deck housing and eliminates the possibility of mounting the unitized...

  • Page 68: Blower Wheel Installation

    Maintenance Instructions Press blower wheel out of the housing using a wheel puller hooked to lugs on the bearing hous- ing. The bearings have been secured in the housing with a retaining compound - Loctite RC/680, and considerable force will be re- quired to break this bond.

  • Page 69: Fsc Neutral-Park Switch

    Maintenance Instructions FSC Neutral-Park Switch Place the FSC in NEUTRAL-PARK position. Adjust switch to the point where the starter en- gages when the ignition switch is turned to the start position. Adjust switch position forward an additional 1/2 to 1 turn of the panel nuts. NOTE: If the switch cannot be adjusted forward enough to achieve proper function, it may be nec- essary to bend the switch mounting bracket...

  • Page 70: Transmission Control

    Maintenance Instructions Scrubber Brake Bar Contacting Belt Brake Mount Bar Scrubber Brake Adjustment - GHS Scrubber Brake Bar Contacting Belt Scrubber Brake Adjustment - SD Use “trial and error” to adjust scrubber braking action and achieve a stopping time of approximately 4 to 5 seconds after disengaging clutch with full throttle.

  • Page 71: Steering Lever End Play Adjustment

    Maintenance Instructions Steering Lever End Play Adjustment - Step 2 Position the FSC lever to the most FORWARD position. Loosen the adjustment nut on each steering le- ver actuator until end play develops between the lever actuator and the adjustment nut (sliding on transmission control rod).

  • Page 72: Forward Speed Control Friction Lock

    Maintenance Instructions End Wrench on Adjustment Nut Straight Ground Travel Adjustment Forward Speed Control Friction Lock The FSC friction lock is adjusted to hold the selected forward speed when the steering levers are moved and yet the friction is not too heavy to make moving the control difficult (too much friction).

  • Page 73: Carburetor

    Maintenance Instructions Carburetor CAUTION DO NOT change the engine governor set- tings or overspeed the engine. The gov- ernor has been factory-set for maximum safe engine operating speed. Carburetor adjustments are required to compensate for differences in altitude, temperature, and fuel. Once the carburetor has been set, no further adjust- ments should be required.

  • Page 74: Ghs "Full" Signal Horn With Grass-Pak Switch

    Maintenance Instructions Recheck idle speed after the final idle mixture adjustment. GHS “Full” Signal Horn with Grass-Pak Switch If the GHS “full” signal horn is not sounding or is not adjusted to sound when the catcher is full, the fol- lowing troubleshooting and adjustment instructions apply: Troubleshooting (When Horn Fails to Operate)

  • Page 75: Wiring Diagram

    Maintenance Instructions Wiring Diagram OPTIONAL LIGHT SEAT SWITCH BATTERY CHASSIS GROUND ORG/WHT VOLTAGE REGULATOR FUEL SOLENOID GRN/WHT GRN/WHT ALTERNATOR MAGNETO 20 AMP FUSE STARTER STARTER SOLENOID INTERLOCK SWITCHES ORG/WHT NEUTRAL INTERLOCK SWITCH OPTIONAL LIGHTS HOUR METER ELECTRICAL SYSTEM POWERFIL MOTOR GRASS PAK SWITCH HORN...
  • Page 76 6(59,&( (1*,1( ,7(0 +2856 Š...

  • Page 77: Operator's Notes

    Operator’s Notes...
  • Page 78 Operator’s Notes...

  • Page 79: Warranty

    WHAT THIS WARRANTY COVERS, AND FOR HOW LONG: Walker Manufacturing company will, at its option, repair or replace, without charge, any part covered by this warranty which is found to be defective in material and/or workmanship within one (1) year* after date of sale to the original retail pur- chaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days.

  • Page 80: Sound Test

    < 5 mph (< 8 kmh) OPERATOR Humidity: Barometric Pressure: 24.9" HG (759 mm Hg) WALKER MFG. CO. 5925 E. HARMONY ROAD, FORT COLLINS, CO 80528 (970) 221-5614 FORM NO. 100103 PRINTED IN USA 0.4g Tests were performed on 22 March 96 under the...

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