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OWNER’S MANUAL
Safety, Assembly, Operating, and Maintenance Instructions
and ILLUSTRATED PARTS MANUAL
Model MBSSD (27 HP)
™
Please Read and Save These Instructions Effective Date: 03-31-08
For Safety, Read All Safety and Operation P/N 2000-1
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 your local dealer. Every customer is important to us. Your satisfaction is our goal. Please. . .read this manual thoroughly! This manual is to be used in conjunction with the engine manufacturer's manual
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Table of Contents STARTING THE ENGINE_________________ 26 Owner’s Manual ADJUSTING GROUND SPEED AND STEERING _________________ 26 General Information ________________ 1 ENGAGING THE MOWER________________ 28 STOPPING THE MACHINE _______________ 29 HIGHLIGHTED INFORMATION _____________ 1 FUEL SELECTOR VALVE________________ 29 GLOSSARY ____________________________ 1 ADJUSTING CUTTING HEIGHT ___________ 30 IDENTIFYING NUMBER LOCATIONS________ 1 Transport Position____________________ 30 ENGINE SERIA
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Table of Contents CHECKING/SERVICING _________________ 47 Security of Air Filtration Components ____ 47 Battery______________________________ 47 Cleaning the Terminals _______________ 47 Charging the Battery _________________ 47 Tire Pressure ________________________ 47 Wheel Nuts Torque ___________________ 47 Sharpen Mower Blades ________________ 47 Drive Belts __________________________ 49 Spark Plugs _________________________ 49 Fuel Lines and Clamps ________________ 49 Blade Brake Action ___
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General Information HIGHLIGHTED INFORMATION • TRACTOR is the prime mover, including the en- gine, drive train, operator seat, and controls to Walker Manufacturing recommends that any ser- operate the mower. vice requiring special training or tools be performed by an authorized Walker Mower Dealer. There are • TRANSAXLE transmits and controls power several general practices to be aware of in the area from the ground drive belt to the main drive of safety. Most accidents associated with the oper
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General Information Serial Number Tractor Serial Number Location Serial Number Engine Serial Number Location SERVICING OF ENGINE AND DRIVETRAIN Serial Number COMPONENTS The detailed servicing and repair of the engine and transaxle are not covered in this manual. Only rou- tine maintenance and general service instructions are provided. For the service of these components during the limited warranty period, it is important to find a local, authorized servicing agent of the com- ponent manufactur
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Specifications MODEL MBSSD ENGINE Manufacturer/Model Kohler Command CH740, 2 Cyl. OHV (Air-Cooled) Displacement 44.0 cu. in. (725 cc) HP (@ 3600 RPM) 27.0 Max. RPM (No Load) 3600 ± 100 Governed RPM 3600 ± 100 Max. Torque [ft-lb (N·m) @ RPM] 42.7 (57.9) @ 3000 Idle RPM 1200 ± 75 Spark Plug Type Champion RC14YC Spark Plug Gap .030 in. (0.76 mm) Crankcase Capacity 1.9 qts (1.8 liters) Crankcase Lubricant SG/SH/SJ or Higher Grade Oil Only with 10W-30 Viscosity Above 0° F (-18° C) or 5W20 or 5W30 bel
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Specifications MODEL MBSSD TRANSMISSION (continued) Service Brake Dynamic Braking through Transaxles Parking Brake (Internal) Mechanical Lockout for each Transaxle (Single Lever Control) Neutral Transmission Release by Manual Dump Valve Final Drive Direct Drive Axle from Transaxle Transmission Fluid Factory Service 20W-50 Multi-Viscosity Motor Oil (Minimum SL Grade Oil) Transmission Fluid Capacity 79 fl oz (2336 ml) Transmission Cooling Cooling Fan Mounted on Drive Pulley Ground Travel Speed For
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Specifications MODEL MBSSD MOWER DECK Width of Cut 60 in. (152 cm) Cutting Height 1 to 5 in. (3 to 13 cm) Height Adjustment 17 Positions - 1/4 in. (1 cm) Increments Blade Size 60 in. (152 cm) SD Model 20-1/2 in. (52 cm) Three (3) Clockwise-Rotating Blades Deck Suspension Torsion-Flex Frame with Caster Wheels and Counterweight Springs CURB WEIGHT (Approximate) Tractor Only 730 lb (331 kg) SD Tractor and 60 in. SD Deck 1110 lb (503 kg) DRIVE BELTS Engine PTO Walker P/N 2230 Ground Drive Walker P/
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Component Identification NOTE: Control Identification shown in Operating Instructions section. Body Lift Handle Tilt-Up Latch Counterweight Spring and Protective Cover Forward Speed Deck Support Control (FSC) Arm Friction Footrests Adjustment Tilt Bar Deck Handle Deck Height Adjustment Trigger Deck Support Arm Height Adjustment Arm (Cutting Height Adjustment) Tilt-Up Hook Deck (not visible) Discharge Shield Deck Deck Height Caster Wheels Lift Chain Front View and Right Side View 6
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Component Identification Footrests Tailpipe Footrest Catch Assembly Left Hand Drive Wheel Fuel Pickup Fuel Tank Line and Cap Muffler Spread Tail Wheel Battery (not visible) Rear View and Left Side View 7
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Component Identification Steering Levers Dampeners LH Transmission RH Transmission Control Arm Control Arm LH Transaxle RH Transaxle Expansion Expansion Reservoir Reservoir RH Transaxle LH Transaxle RH Transaxle LH Transaxle Lockout Rod Lockout Rod Clutch Parking Brake Cummins/Fleetguard PTO Clutch OptiAir™ Air Cleaner Lever Air Filter Cover Parking Brake Linkage Fuel Pickup Line Fuel Selector Fuel Tank Valve Fuel Tank Cap Fuel Pump (not visible) Fuel Filter Air Intake Hose Air Intake Oil F
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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. Any person using procedures, tools, or When you see the Safety Alert Symbol ( ), control techniques not recommended by Walker read, understand, and follow the instructions. Fail- Manuf
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Safety Instructions 6. Do not wear loose fitting clothing that could get 11. Never attempt to make any adjustments caught in moving parts. Do not operate this while the engine is running, except where spe- machine while wearing shorts; always wear cifically instructed to do so. adequate protective clothing, including long pants. Wearing safety glasses, safety shoes, 12. The electrical system battery contains sulfuric and a helmet is advisable and required by some acid. Avoid any contact with
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Safety Instructions 6. Disengage the blade clutch and put the FSC in 15. When using the tilt-up deck, observe the fol- the NEUTRAL-PARK position before starting lowing recommendations: the engine (an ignition interlock switch normally a. Do not move tractor with deck in tilt-up prevents starting of the machine if these controls position. are in the OPERATING position). b. Never tilt body forward with deck in tilt-up 7. Do not run the engine in a confined area without adequate ventilation. Exhau
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Safety Instructions MAINTENANCE 11. Use care when charging the battery or per- forming maintenance on the battery and 1. To prevent accidental starting of the engine electrical system: when servicing or adjusting the machine, remove the key from the ignition switch and a. Make sure the battery charger is unplugged disconnect the spark plug wires. before connecting or disconnecting cables to the battery. 2. To reduce fire hazards, keep the engine free of grass, leaves, excessive grease, and dirt.
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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 Section. Each End of Mower Deck (5808) SD Deck Discharge Shield (5848) Engine Shroud (5855) LH Fender (2802-1) RH Fender (2802-2) PTO Guard (8746) Deck Carrier Frame (2748) 13
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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 Section. BELT ROUTING DRIV DRIVE E BE BEL LT T WA WAL LK KE ER R P P/ /N N 2 27 731 31 B BL LADE ADE P PU UL LL LE EY Y C CA AR RL LIIS SL LE E P P/ /N N R3 R3V VX X1 12 25 50 0
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Assembly Instructions SETUP INSTRUCTIONS Dry Battery Service Walker Mowers are shipped partially assembled to DANGER our distribution network, and are typically assembled by the selling dealer. For any additional assembly besides the following, contact your Walker dealer. Activating a battery can be dangerous. The battery should be taken to a reliable Battery Service service station, battery store, or power equipment dealer where a trained techni- Raise mower body up for battery access. Check t
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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). Deck Caster Wheel Installation • Make sure the battery charger is unplug- Deck Discharge Shield Installation ged befor
