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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: 01-15-05 For Safety, Read All Safety and Operation P/N 5000-16 Instructions Prior to Operating Machine...
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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.
Table of Contents General Information Operating Instructions ________________ 1 _____________ 24 HIGHLIGHTED INFORMATION _____________ 1 CONTROL IDENTIFICATION, GLOSSARY ____________________________ 1 LOCATION, AND FUNCTION _____________ 24 IDENTIFYING NUMBER LOCATIONS________ 1 Ignition Switch _______________________ 24 ENGINE SERIAL NUMBER LOCATION ______ 2 Engine Choke________________________ 24 SERVICING OF ENGINE Engine Throttle ______________________ 25 AND DRIVETRAIN COMPONENTS__________ 2...
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Table of Contents REPLACING/REPAIRING ________________ 57 Maintenance Instructions __________ 40 Drive Belts __________________________ 57 MAINTENANCE SCHEDULE CHART _______ 40 Engine Belt ________________________ 58 IMPORTANT TIPS FOR CARE OF THE PTO Drive Belt _____________________ 59 KAWASAKI ENGINE ____________________ 41 Ground Drive Belt ___________________ 60 Fuel System _________________________ 41 Blade Overload Shear Bolts ____________ 61 Starting _____________________________ 41...
General Information • HIGHLIGHTED INFORMATION POWER TAKE-OFF (PTO) transmits engine power to run the cutter blades and GHS blower. Walker Manufacturing recommends that any ser- • vice requiring special training or tools be performed POWERFIL spreads the mowed material by an authorized Walker Mower Dealer.
General Information SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS Serial Number The detailed servicing and repair of the engine, hydrostatic transmission and gearboxes are not cov- ered in this manual. Only routine maintenance and general service instructions are provided. For the service of these components during the limited war- ranty period, it is important to find a local, authorized servicing agent of the component manufacturer.
Specifications MODEL DIMENSIONS (continued) Height SD Model 37-1/2 in. (95 cm) GHS Model 44-1/2 in. (112 cm) Wheel Base (Tractor) 42-1/4 in. (107 cm) Tread Width (Tractor) Standard Tires 28-1/4 in. (72 cm) Optional Tires 29-3/4 in. (76 cm) MOWER DECK Width of Cut SD/GHS 36 or 42 in.
Specifications MODEL GHS SYSTEM (Optional) Blower 3 1/2 x 9 x 1/4 in. (9 x 23 x 1 cm) Three-Blade Paddle Wheel (Driven by Mower Engine) Blower Brake Belt Scrubber Brake (Works in Combination with PTO Clutch, Stops Blower within Five (5) Seconds of PTO Disengagement) Max.
Component Identification NOTE: Control Identification shown in Operating Instructions section. Grass Handling System 6.7 Bushel Catcher Catcher Door Safety Latch Anti-Scuff Roller Tilt-Up Latch Transmission Control Rod Adjustment Nut (LH) Catcher Lift/ Dump Handle Deck Support Pin and Height Adjustment Counterweight Hitch Pins Spring and...
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Component Identification Removable Grass Catcher Screen Catcher Catcher Door (Not Visible) Exhaust Gas Spring Catcher Door Deflector Gas Spring Protective Cover Catcher Door Catcher Lift/ Dump Handle Catcher Door Handle Anti-Scuff Rollers Left Hand Drive Wheel Oil Filter Fuel Shut-off Valve Rotating Engine Fuel Filter...
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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 (Not Shown) Muffler GHS Blower Tractor PTO Gearbox RH Transmission Lockout Lever RH Hydrostatic Transmission Positive (+)
Safety Instructions Pay particular attention to any information labeled Walker Manufacturing cannot predict every poten- DANGER, WARNING, CAUTION, IMPORTANT, tially dangerous situation. Therefore, items labeled and NOTE in this manual. as such in this manual do not cover all conceivable situations.
Safety Instructions Do not wear loose fitting clothing that could get 12. The electrical system battery contains sulfuric caught in moving parts. Do not operate this acid. Avoid any contact with skin, eyes, and machine while wearing shorts; always wear clothing.
Safety Instructions Watch for holes, rocks, and roots in the terrain 17. For GHS equipped models, use care when and for other hidden hazards. When mowing closing the grass catcher door. Keep fingers tall grass, mow higher than desired to expose and hands away from the hinge and pinch points any hidden obstacles.
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Safety Instructions Keep all nuts, bolts, and screws tight to ensure Keep sparks, flames, and smoking materi- the machine is in a safe, working condition. als away from the battery at all times. To Check the blade mounting nuts frequently, mak- avoid sparks, use care when removing bat- ing sure they are tight.
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)
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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) Fender, LH Side (5802-2)
Assembly Instructions SETUP INSTRUCTIONS Dry Battery Service Walker Mowers are shipped partially assembled. DANGER After uncrating the tractor and mower deck, initial setup is required. Activating a battery can be dangerous. NOTE: During the process of unpacking, any dam- The battery should be taken to a reliable...
Assembly Instructions Battery Charging Battery Clamp Secured by DANGER Wing Nuts (+) Battery Cable Connection 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.
Assembly Instructions Deck Discharge Shield Installation Grease Fitting (Side Discharge Models Only) Locations 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 Spacer Washer ESNA nuts, and 3/8 in.
Assembly Instructions Grease Deck Attach Spring Support Arms PTO Connection Arrows on Shaft and Tube (used to align when sliding together) Roller Wheels Mower Deck Installation/PTO Shaft Connection Tilt-Up Spring and Roller Wheel Install the hitch pin through the hole on the end Installation on Rear Discharge Deck of each support arm to lock the deck in place (re- fer to Deck Counterweight Spring Installation...
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Assembly Instructions Spring Tension Adjustment Nut Located Under Lower Spring Hook (not visible) Counterweight Springs Clip Onto Body With Body Tilted Up Hitch Pins Lock Deck On Support Arms 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.
Assembly Instructions Check the side-to-side level. Rotate each blade Deck Leveling sideways and measure the distance from blade Position mower on a smooth, level surface. Set tip to ground on each side. If measurements the cutting height to the highest position - 4 in. vary more than 1/8 in.
Assembly Instructions PREOPERATING CHECKLIST IMPORTANT: DO NOT mix oil with gasoline. Always use fresh, automotive grade unleaded gas- Before operating the mower for the first time, and as oline. DO NOT use premium, white, or high-test a routine before daily operations, it is important to gasoline.
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Assembly Instructions INSPECT THREE (3) DRIVE BELTS CAUTION Engine, PTO, and Hydrostatic Ground Drive. Do not operate machine with deck tilt-up CHECK HYDROSTATIC TRANSMISSION OIL pivot joint unlocked. LEVEL Refer to LUBRICATION for Checking Hydrostatic Transmission Fluid Level in Maintenance Instruc- DANGER tions.
Operating Instructions CONTROL IDENTIFICATION, LOCATION, AND to the “O” position for at least 60 seconds before FUNCTION making a restart attempt. Prolonged cranking can damage the starter motor and shorten battery life. Release the key when the engine starts, and it will CAUTION return to the RUN position.
Operating Instructions Engine Throttle Steering Levers The throttle control lever (red knob) is located on the Each drive wheel is controlled by its own indepen- left side of the seat and is used to control engine dent steering lever, for both steering function and speed.
Operating Instructions Transmission Lockout Levers Procedure Interval* Reminder The transmission lockout levers disengage the Oil Change 4-6 Hours hydrostatic transmissons. By lifting the lever on top (Break-In)** of the transmission and locking it into place with the lockout cam, the hydrostatic transmissions are Lubricate and Check 24-26 Hours...
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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...
Operating Instructions STARTING THE ENGINE IMPORTANT: DO NOT crank the engine con- tinuously for more than 10 seconds at a time. If the engine does not start, turn the key to the CAUTION OFF position and allow a 60 second cool-down period between starting attempts.
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Operating Instructions WARNING Beginning Recommendations are: ♦ Learn operation of the mower in an open In case either of the transmission drive area away from buildings, fences, and ob- belts break during operation, and if the structions. Learn operation on flat ground machine is on a slope, the machine will BEFORE operating on slopes.
Operating Instructions NOTE: Smooth action on the steering levers IMPORTANT: DO NOT engage the blade clutch will produce smooth mower operation. Remem- when transporting the mower across drives, side- ber to keep the engine and ground speed slow walks, loose materials, etc. DO NOT engage the until learning the control response.
Operating Instructions STOPPING THE MACHINE ADJUSTING CUTTING HEIGHT Slow the engine to idle; put the throttle in the WARNING IDLE position. Pull the steering levers to the NEUTRAL-PARK The engine must be stopped before ad- position and then move the FSC lever backward justing cutting height.
Operating Instructions TRANSMISSION LOCKOUT Lockout Lever 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 Cam in transmissions are unlocked (released).
Operating Instructions • Make sure the mower is leveled properly for a smooth cut. Refer to Deck Leveling in Assembly Maximum Recommended Side Slope - Do Not Operate Instructions. on Steep Slopes • 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.
Operating Instructions GRASS HANDLING SYSTEM (GHS) GHS Model Only Exhaust Screen Catcher Door (Removable) Safety Latch ® Grass-Pak Vane Switch Exhaust ® Powerfil Deflector Drive Motor Actuator “Full” Signal Horn Catcher Clutch Door Catcher Shear Pin Door Spring PTO and Blade Gear Drive Grass Catcher Shear...
Operating Instructions NOTE: When a side discharge or mulching mower General Information deck is installed on the GHS model, a blower intake The Grass Handling System (GHS) consists of a rear cover should be installed in the blower intake tube. discharge mower deck connected to a 9 in.
Operating Instructions • Check the amount of flat section remaining at Clogging Checklist blade tip. This is the area that is ground away In case of clogging, there will be a distinct change (removed) when the blades are sharpened. If too in the sound of the blower, i.e., the blower sound will much of the flat section is removed, the “air lift”...
Operating Instructions • Check that the openings in the air exhaust The “full” signal horn is designed to operate (sound) screen in the grass catcher are not plugged. If the when the grass catcher is almost full. The timing of screen is clogged, refer to Cleaning the GHS the signal is adjustable by changing the position of ...
Operating Instructions Dumping the Catcher Using the Dump Bag For dumping, the catcher either tailgate dumps into Open the back door by lifting on the door handle. a disposal area or dumps into the optional dump bag. The dump bag is a reusable nylon fabric bag NOTE: To prevent accidental door closure, designed to conveniently move grass clippings from a safety latch locks the door open in the...
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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.
Maintenance Instructions CAUTION Maintenance procedures requiring special training or tools should be performed by a trained technician. MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MS Every Ref. Service Item Daily Hours Hours Hours Yearly 2Years Page Check Engine Crankcase Oil Level Check/Clean Engine Air Cooling System* Clean Grass Buildup Under Deck Clean GHS Exhaust Screen*...
Maintenance Instructions KAWASAKI TIPS IMPORTANT TIPS FOR CARE OF THE Air Cleaner KAWASAKI ENGINE • Use only Donaldson air cleaner elements. After- Fuel System market elements may not seal in the air cleaner housing, allowing dirt to enter the engine. Also, af- •...
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 (L) mark or WARNING above the FULL (H) mark on the dipstick. DO NOT attempt to lubricate the machine NOT SCREWED IN with the engine running.
Maintenance Instructions LUBRICATION Changing Engine Crankcase Oil/Oil Filter Install the new oil filter on the engine. Turn the oil filter clockwise until the rubber gasket con- Change the engine crankcase oil after every 50 tacts the sealing surface, then tighten the filter hours of operation and the oil filter after every 100 an additional 3/4 turn.
Maintenance Instructions LUBRICATION Mower Deck Gearbox Lubrication NOTE: Since the gearboxes are connected as a unit by connector tubes, it is necessary to add The mower deck gearboxes (tee gearbox and blade oil slowly. Allow a few minutes after adding oil drive gearboxes) are connected as a unitized for the oil to flow throughout the assembly and assembly, and oil flows freely between them.
Maintenance Instructions LUBRICATION Gear Axle Lubrication * Slowly add fluid into the reservoir until fluid starts to leak from around the plug. • The gear axle oil lubrication is SAE 80W-90 (API (Transmissions are serviced from the GL-5) gear lube. factory with Mobil DTE 18M hydraulic oil.
Maintenance Instructions CLEANING CLEANING Push Button to Reset Engine Air Cleaner System Indicator After Service Donaldson Radialseal™ Air Cleaner A remote mounted Donaldson Radialseal™ air cleaner provides the air filtering function. The paper filter element slides over an outlet tube inside the air cleaner canister with radial sealing action, eliminat- ing the possibility of dust leaks due to improper filter installation.
Maintenance Instructions CLEANING Use a bright light inside the element to inspect Install the cover with the word "TOP" properly for damage. Check the element very carefully oriented to the top of the canister. Give the for pin holes or other damage that will allow cover a slight twist as it reaches the canister to dirt to leak through the paper media.
Maintenance Instructions CLEANING IMPORTANT: Service the fuel filter screen only in a clean area where the fuel filter components will not Rotating be contaminated by any dust and dirt. Engine Air Intake Screen DANGER Gasoline is extremely flammable and can be highly explosive.
Maintenance Instructions CLEANING Inspect accessible cooling fins and clean with Grass Buildup in Mower Housing compressed air as needed. If the buildup is excessive, refer to step 2. DANGER Remove the spark plug wire and disconnect the breather tube on the valve cover. Do not dis- Before raising or removing the mower connect the breather tube from the carburetor deck for cleaning, stop the engine, re-...
Maintenance Instructions CLEANING Use a pressure washer or water spray, and CAUTION direct the spray inside the blower housing against the blower blades. Water pressure will cause the blower wheel to begin to spin, and the Do not operate machine with deck tilt-up combination of spinning action and water will pivot joint unlocked.
CLEANING/ Maintenance Instructions CHECKING/SERVICING Hydrostatic Transmission Cooling Fins CHECKING/SERVICING DANGER Keeping the cooling fins on the hydrostatic transmis- sions clean and free of obstruction is essential to avoid overheating the transmission fluid and short- To prevent accidental starting of the en- ening transmission life.
CHECKING/SERVICING Maintenance Instructions Replace filler caps. Tire Pressure IMPORTANT: DO NOT overfill the battery. Electro- Inflate tires to pressures shown below: lyte will overflow through the vent tube onto parts of Deck Caster Wheel = 20 PSI (137 kPa) the machine and WILL result in severe corrosion. Drive = 15 PSI (103 kPa) Rear...
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Maintenance Instructions CHECKING/SERVICING WARNING Intersection Wear Area DO NOT try to straighten a blade that is Sharpen at Original bent. NEVER weld a broken or cracked 30° Angle blade. ALWAYS replace with a new blade to assure safety. If the blade cutting edge is dull or nicked, it 30°...
Maintenance Instructions CHECKING/SERVICING Drive Belts Breaker Points Raise the body and inspect the condition of the three The Kawasaki engine is equipped with electronic (3) drive belts after every 25 hours of operation -- ignition. No breaker points, maintenance, or adjust- engine, PTO drive, and ground drive.
Maintenance Instructions REPLACING/REPAIRING REPLACING/REPAIRING Drive Belts There are three (3) individual belts on the machine: DANGER • Engine Belt To prevent accidental starting of the en- • PTO Drive Belt gine when replacing parts or repairing the machine, remove the key from the ignition •...
Maintenance Instructions REPLACING/REPAIRING Engine Belt Roll the belt off the compound pulley and To remove the engine belt: remove the belt. Relax the belt by depressing the spring- loaded idler arm. Engine Belt Compound Pulley Idler Pulley Push Idler Pulley to Relax Belt Tension Spring Belt Tightener...
Maintenance Instructions REPLACING/REPAIRING PTO Drive Belt To remove the PTO drive belt: Move blade clutch (in direction of engage- ment) far enough to relax belt scrubber Remove the engine belt, as described in brake without tightening the PTO drive belt. previous section.
Maintenance Instructions REPLACING/REPAIRING Ground Drive Belt Slide belt off pulleys, then release the To remove the ground drive belt: idler. Raise the spring-loaded idler to relax belt. Raise Idler Pulley to Relax Belt Idler Pulley Belt Tightener Arm Transmission Tension Spring Drive Pulley Hydrostatic Ground Drive...
Maintenance Instructions REPLACING/REPAIRING Blade Overload Shear Bolts PTO Shear Pin The cutting blade is keyed to the blade hub by two The PTO drive shaft connection to the deck gearbox (2) shear bolts (10-24 x 5/8 in. stainless steel ma- has a shear pin to provide shock load protection to chine screws).
Maintenance Instructions REPLACING/REPAIRING Mower Blades WARNING Mower blades are removed and remounted as de- scribed in the Sharpen Mower Blades instructions DO NOT try to straighten a blade that is (refer to CHECKING/SERVICING in this section). bent. NEVER weld a broken or cracked During the course of sharpening and inspecting blade.
Maintenance Instructions ADJUSTMENTS ADJUSTMENTS Steering Levers Jam Nut An adjustment range of approximately 3 inches is available on the steering levers - the levers can be ad- justed forward or aft depending on the arm length of the operator. The levers can be adjusted by loosen- ing the locknut at the pivot point and the locknut hold- ing the lever in position in the adjustment slide.
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Maintenance Instructions ADJUSTMENTS ® Position the discharge chute so that it is point- If adjustment is required, hold the Grass-Pak ing straight back. switch mount bracket firmly, grasp the switch and bracket and bend it down. Adjustments Turn the ignition switch ON and move the should be done in very small increments check- blade clutch to the ENGAGED position ing the measurement each time until the recom-...
LIMITED WARRANTY WALKER COMMERCIAL RIDER MOWER 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.
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Sound - Model MS Vibration - Model MS Sound Test Vibration Level Vibration levels at the operators handles were measured in the vertical, lateral, and Sound test conducted was in accordance 0.4g longitudinal directions using calibrated with 79/113/EEC and was performed on 22 vibration test equipment.