Related Manuals for Excel BigDog R Series
Summary of Contents for Excel BigDog R Series
- Page 1 BigDog ® Mowers R Series General Service Manual ••••• 200 South Ridge Road ••• Hesston, Kansas • 67062-2097 108935BD REV E...
- Page 2 WARNING The engine exhaust from this product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. NOTICE OF REQUIREMENT OF SPARK ARRESTER MUFFLER This equipment may create sparks that can start fires around dry vegetation. California Public Resources Code Section 4442.6 provides that it is unlawful to use or operate an internal combustion engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester maintained in effective working order.
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Page 3: Table Of Contents
Table of Contents General Information ........1-1 ®... - Page 4 REV E 108935BD...
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Page 5: General Information
GENERAL INFORMATION ® particles are abrasive to close-tolerance engine and hydraulic BigDog Mower Service Program assemblies. Daily inspect mower for grass clippings and wire and string ® This manual is part of a service package for the BigDog tangles. The underside of the mower deck will collect a build-up Series mowers. - Page 6 REV E 108935BD...
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Page 7: Safety
SAFETY • Refuel outdoors. Never refuel or drain the fuel from the machine indoors. • Never attempt to start engine when there is a strong odor of gasoline or diesel fuel fumes present. Locate and correct cause. This safety alert symbol is used to call attention to a message •... -
Page 8: Operation Precautions
Before working on or under the deck, make certain • Do not wear radios or music headphones while operat- ing the machinery. Safe operation requires your full engine cannot be accidentally started. Shut engine off, attention. remove ignition switch key and disconnect negative bat- tery cable for maximum safety. - Page 9 Shorts caused by battery terminals or metal tools touch- Prepare For Emergencies Be prepared if a fire starts. ing metal mower components can cause sparks. Sparks Keep a first aid kit and fire extinguishers available. can cause a battery gas explosion which will result in per- ...
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Page 11: Torque
TORQUE Standard Torques The following chart lists the standard torque values for the threaded fasteners found in this manual. Torque all cap screws, nuts and set screws to these values unless a different torque is shown in the Special Torques section. 32.4 IN.-LBS. - Page 12 REV E 108935BD...
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Page 13: Power Unit Maintenance
POWER UNIT MAINTENANCE Steering Adjustments 3. Raise the seat platform and disconnect the mower harness from the seat switch. Bypass the seat switch by connecting the two mower harness female spades Steering control lever neutral adjustment together. Figure 4-1 The mower’s steering has been factory adjusted to eliminate creeping when the steering control levers are in the neutral posi- tion. - Page 14 6. Loosen the nuts on the rear steering damper ball studs. nut is tightened, when the steering control lever is in the The dampers must be allowed to slide in the slots in the reverse position and then released, the steering control mower frame.
- Page 15 Steering control lever Steering damper Slot Steering control Steering damper stud Figure 4-5 Steering damper The steering damper is spring loaded to return the steering Bolt Seat control levers to the neutral position from the reverse position. Torque to latch 17 ft.-lbs.
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Page 16: Park Brake Spring Adjustment
through 7. WARNING Never operate the mower with the seat latch un-installed or not properly secured. The seat platform must be securely latched to prevent seat from moving/tilting in the event of mower tipping or rollover. Steering damper Brake arm spring Nylock nut Figure 4-8... - Page 17 axles. Figure 4-10 IMPORTANT: Never use hydraulic or automatic transmis- sion fluid in this system; use only motor oil as specified. Remember, dirt is the primary enemy of any hydraulic system. The hydraulic expansion tank is located in front of the engine and under the operator’s platform.
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Page 18: Tires
tank. WARNING 13. Re-install the expansion tank cap by hand. Be careful not to overtighten. 14. Proceed to the purge procedure. Never work under the machine or attachment unless it is safely supported with jack stands. Make certain machine is secure when it is raised and Top port plug placed on the jack stands. - Page 19 Bypass valve rod shown in operating position (Right rod shown) Figure 4-15 108935BD REV E...
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Page 21: Engine Maintenance
ENGINE MAINTENANCE General Engine Maintenance Detailed instructions and recommendations for break-in and regular maintenance are specified in the Engine Owner’s man- ual. Please refer to this manual for engine servicing, lubricating oil levels with quality and viscosity recommendations, bolt torques, etc. The engine warranty is backed by the manufacturer. Engine Oil and Filter WARNING If the engine has been running and is up to operating tem-... -
Page 22: Fuel & Evaporative System Line Routings
Fuel tank Fuel line Fuel Seat support shutoff valve Oil drain valve Fuel line Fuel tank Figure 5-3 Figure 5-5 must be checked and replaced every 300 hours or annually whichever comes first. Figure 5-4 Fuel tank Fuel Vapor line tank Fuel evaporation system filter... -
Page 23: Engine Rpm Settings
Engine RPM Settings The engine rpm’s are set at the factory for maximum mowing efficiency. Occasionally it may be necessary to check and adjust the settings. The idle speeds should be set as follows: B&S 21 hp ENGINE SPEED MODEL NO. ENDING WITH: HIGH IDLE MODEL NO. - Page 24 REV E 108935BD...
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Page 25: Deck Adjustments
DECK ADJUSTMENTS Deck Leveling Clamp here Height in- Nuts Leveling the deck must be done in the following manner and dicator bar order: 1. Check tire pressures to make certain they are properly inflated before starting to level deck. The recommended pressures are as follows: Lift block Drive wheels tire pressure . -
Page 26: Blades
bolt from moving. Figure 6-4 and jam them tightly together against the block. 19. Tighten the hardware holding the chain and adjuster onto 28. Compress the deck lift assist springs so that there is 1/2” the deck lift arm.Figure 6-4 of space between the front nut on the spring and the rear nut on the deck lift block. -
Page 27: Belts
Spin the blade slowly, blade should not wobble. If blade is out WARNING of balance, true it up before reinstalling. Lay the blade on a flat surface and check for distortion (Figure 6-8 & Figure 6-9). Replace any distorted blade. Always wear adequate eye protection when grinding Do not re-use spindle bolts which have stripped, worn or mower blades. -
Page 28: Deck Belt Adjustment
checking and cracking, or burns caused by slipping. Slight rav- IMPORTANT: Do not over tension the spring to compensate eling of belt covering does not indicate failure, trim ravelings for a badly worn belt or pulley. with a sharp knife. Inspect the belt pulley grooves and flanges for wear. -
Page 29: 48" Deck Belt Routing & Tensioning
NOTE: The following notes are the same for the different decks shown. 1. Spring length after tensioning new belt. Measured from outside of hook to outside of hook with deck set at 3¼" cut height. 2. Route belt as shown. 48"... - Page 30 REV E 108935BD...
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Page 31: Electrical
ELECTRICAL Electrical Schematic – Kawasaki, Briggs & Stratton & Kohler 108935BD REV E... - Page 32 REV E 108935BD...
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Page 33: Maintenance Schedule
MAINTENANCE SCHEDULE ® BigDog Mowers R Series Maintenance Schedule Refer to Figure 8-1, Figure 8-2, Figure 8-3, & Figure 8-4 WEEKLY MONTHLY ANNUALLY SERVICE AT OR 40 OR 100 OR 300 INTERVALS INDICATED HOURS HOURS HOURS Verify safety start interlock system Prior to each use Visually inspect unit for loose hardware and/or damaged parts Prior to each use... -
Page 34: Maintenance Locator Chart
Maintenance Locator Chart Figure 8-1 Engine Oil Fill & Dipstick Fuel Filter Engine Air Cleaner Engine Oil Drain Valve Battery Fuel Tank Engine Oil Filter Deck Lift Pivot Zerks (4) Park Brake Switch (2) Drive Tire Pump Belt Engine Air Intake Screen Front Wheel Tires Front Wheel Zerks (2) Deck Belt... - Page 35 Figure 8-3 Engine Oil Fill & Dipstick Fuel Filter Engine Air Cleaner Engine Oil Drain Valve Battery Fuel Tank Engine Oil Filter Deck Lift Pivot Zerks (4) Park Brake Switch (2) Drive Tire Pump Belt Engine Air Intake Screen Front Wheel Tires Front Wheel Zerks (2) Deck Belt Blades...
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Page 37: Troubleshooting
TROUBLESHOOTING SUGGESTED SYMPTOMS PROBABLE CAUSES REMEDIES SUGGESTED SYMPTOMS PROBABLE CAUSES REMEDIES Mower creeps when Steering linkage needs Adjust linkage steering control levers are adjustment Starting motor does not Steering control levers not Place steering control in neutral crank in park brake position or levers in park brake posi- switch not adjusted tion or re-adjust switch... - Page 38 REV E 108935BD...
- Page 39 INDEX PAGE PAGE Belts ..............4-4 Maintenance Schedule ........... 8-1 Blades ..............6-2 Mower blade maintenance ........6-2 Deck Belt adjustment ..........6-4 Mower blade removal..........6-3 Deck Belt Routing & Tensioning ......6-5 Operate Machine Safely ......... 2-2 Deck leveling ............6-1 Operation Precautions ..........
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