Bobcat Loader 853 Service Manual 6724012 EN US

MAINTENANCE SAFETY
CONTENTS
– FOREWORD
– SAFETY INSTRUCTIONS
– SERIAL NUMBER LOCATIONS
– LOADER SERIAL NUMBER
– ENGINE SERIAL NUMBER
– DELIVERY REPORT
– BOBCAT LOADER IDENTIFICATION
– OPTIONS AND ACCESSORIES
PREVENTIVE MAINTENANCE
– SERVICE SCHEDULE
– LIFTING AND BLOCKING THE LOADER
– TRANSPORTING THE LOADER
– TOWING THE LOADER
– STOPPING THE BOBCAT LOADER
– LIFTING THE LOADER
– LIFT ARM SUPPORT DEVICE
– OPERATOR CAB
– SEAT BAR RESTRAINT SYSTEM
– AIR CLEANER SERVICE
– FUEL SYSTEM
– ENGINE LUBRICATION SYSTEM
– ENGINE COOLING SYSTEM
– ALTERNATOR BELT
– USING A BOOSTER BATTERY Jump Starting
– HYDRAULICHYDROSTATIC SYSTEM
– SPARK ARRESTOR MUFFLER
– TIRE MAINTENANCE
– FINAL DRIVE TRANSMISSION CHAINCASE
– FAN GEARBOX
– LUBRICATING THE LOADER
– REMOTE START SWITCH
HYDRAULIC SYSTEM
– HYDRAULIC HYDROSTATIC SCHEMATICS
– TROUBLESHOOTING
– HYDRAULIC SYSTEM INFORMATION
– LIFT CYLINDERS
– TILT CYLINDER
– HYDRAULIC CYLINDER
– MAIN RELIEF VALVE
– DUAL PRESSURE MAIN RELIEF VALVE 853H
– SELECT VALVE G.E.M. Block 853H
– HYDRAULIC CONTROL VALVE
– HYDRAULIC PUMP
– HYDRAULIC PUMP Double Gear 853H
– BUCKET POSITION VALVE Optional
– HYDRAULIC FLUID RESERVOIR
– HYDROSTATIC FILTER HOUSING
– HYDRAULIC FILTER HOUSING
– CONTROL PEDALS
– PEDAL INTERLOCK LINKAGE
HYDROSTATIC SYSTEM
– TROUBLESHOOTING
– HYDROSTATIC SYSTEM INFORMATION
– FRONT PANEL
– STEERING LEVERS
– HYDROSTATIC MOTOR
– HYDROSTATIC PUMP
– DRIVE BELT SHIELD
– DRIVE BELT
– DRIVE BELT TENSIONER PULLEY
– OIL COOLER
DRIVE SYSTEM
– PARKING BRAKE PEDAL
– PARKING BRAKE DISC
– FRONT CHAINCASE COVER
– REAR CHAINCASE COVER
– AXLE SEAL
– AXLE, SPROCKET AND BEARINGS
– REDUCTION GEARCASE
– DRIVE CHAIN
– CHAINCASE FLUID
MAIN FRAME
– SEAT BAR
– OPERATOR CAB GAS CYLINDER
– OPERATOR CAB
– OPERATOR SEAT
– BOBTACH
– LIFT ARMS
– REAR GRILL
– REAR DOOR
– FUEL TANK
ELECTRICAL SYSTEM
– ELECTRICAL SCHEMATICS
– TROUBLESHOOTING
– ELECTRICAL SYSTEM INFORMATION
– BATTERY
– ALTERNATOR
– STARTER
– STANDARD INSTRUMENT PANEL
– FRONT LIGHTS
– RELAY SWITCHES
ENGINE SERVICE
– TROUBLESHOOTING
– ENGINE SPEED CONTROL
– RADIATOR
– COOLANT RECOVERY TANK
– ENGINE MUFFLER
– AIR CLEANER HOUSING
– BLOWER HOUSINGFAN GEARBOX
– FAN DRIVE TENSION PULLEY
– BLOWER FAN
– FAN GEARBOX
– ENGINE
– FLYWHEEL
– BELT SHIELD
– VALVE CLEARANCE
– ENGINE COMPRESSION
– GLOW PLUGS
– FUEL INJECTION PUMP
– FUEL INJECTOR NOZZLES
– CYLINDER HEAD
– VALVES, VALVE SEAT AND GUIDE
– ROCKER ARM AND SHAFT
– PISTON AND CONNECTING ROD
– CYLINDER LINERS
– MAIN BEARINGS
– CRANKSHAFT
– CRANKSHAFT GEAR
– TIMING GEARCASE COVER SEAL
– TIMING GEARCASE COVER
– IDLER GEAR AND HUB
– FUEL INJECTION PUMP IDLER GEAR
– CAMSHAFT GEAR
– TIMING GEARCASE
– CAMSHAFT
– OIL PAN
– OIL PUMP
– WATER PUMP
– THERMOSTAT
– WATER JACKET TUBE
SYSTEMS ANALYSIS
– BOBCAT INTERLOCK CONTROL SYSTEM BICS
– BICS SYSTEM CONTROLLER
– SEAT BAR SENSOR
– SEAT SENSOR
– TRACTION LOCK
– LIFT LOCK BYPASS VALVE
– TILT LOCK VALVE
– BOSS DIAGNOSTIC TOOL
– SENDER AND SENSOR
– RPM SENSOR
– MONITOR SERVICE CODES
– TROUBLESHOOTING THE BOSS LCD DISPLAY
– OPERATION SENSING SYSTEM UNIT
– BOSS INSTRUMENT PANEL
– PWM MODULE
– PWM TROUBLESHOOTING
– PWM CONTROL HANDLE
– PWM ELECTRIC SOLENOID
– ELECTRICALHYDRAULIC CONTROLS REFERENCE
SPECIFICATIONS
– LOADER SPECIFICATIONS
– ENGINE SPECIFICATIONS
– TORQUE SPECIFICATIONS FOR LOADER
– HYDRAULICHYDROSTATIC FLUID SPECIFICATIONS
– STANDARD TORQUE SPECIFICATIONS FOR BOLTS
– DECIMAL AND MILLIMETER EQUIVALENTS
– U.S. TO METRIC CONVERSION
SERVICE MANUAL REVISIONS
– 850001
– 850002
– 850003
– 850004
– 850005
– 850006