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HYDROSTATIC MOTOR (Cont’d) Parts Identification 26 Revised June 96 18 7 8 1 9 Ref. Description Ref. Description 12 1 FLANGE, mounting 15 HOUSING, valve 2 O–RING 16 BOLT 3 DRIVE 17 BOLT 4 O–RING 18 SEAL 5 GEROLER 19 PLUG 6 PLATE, valve 20 O–RING 7 DRIVE, valve 21 SPRING 8 VALVE 22 POPPET 9 PLATE, balance assy. 23 PISTON 10 SEAL, outer 24 PLUG 11 SEAL, inner 25 PLUG 12 SPRING 26 BEARING, bronze 13 O–RING 27 SHUTTLE 14 O–RING 11 2 20 19 10 27 21 13 3 4 –3–16– 23 25 22 14 27 24 22 21 5 15 4 2 17 16 6 D–02124 853, 853H BICS Loader Service Manual
HYDROSTATIC MOTOR (Cont’d) Disassembly When making repairs on hydrostatic and hydraulic systems, clean the work area before disassembly and keep all parts clean. Always use caps and plugs on hoses, tubelines and ports to keep dirt out. Dirt can quickly damage the system. I–2003–0284 Put a mark across the sections for correct assembly. Remove the four bolts from the motor [A]. Lift the valve housing straight up [B]. If done carefully, the springs and balance plate will stay on the valve. Remove the O–rings. Remove the plug at the shuttle valve [C]. Remove the spring and shuttle [D]. Revised June 96 A B C D B–08695 B–08692 B–08748 B–08742 853, 853H BICS Loader –3–17– Service Manual
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EQUIPPED WITH BOBCAT INTERLOCK CONT
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FOREWORD . . . . . . . . . . . . .
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17. Inspect the air cleaner for dam
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SAFETY INSTRUCTIONS Instructions ar
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SERIAL NUMBER LOCATIONS Always use
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All 853 & 853H Bobcat loaders are e
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PREVENTIVE MAINTENANCE Page Number
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SERVICE SCHEDULE Maintenance work m
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TRANSPORTING THE LOADER Procedure A
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LIFT ARM SUPPORT DEVICE Never work
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OPERATOR CAB (Cont’d) Lowering th
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AIR CLEANER SERVICE Replacing Filte
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FUEL SYSTEM Fuel Specifications Use
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ENGINE LUBRICATION SYSTEM Checking
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ENGINE COOLING SYSTEM Cleaning the
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USING A BOOSTER BATTERY (Jump Start
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HYDRAULIC/HYDROSTATIC SYSTEM (Cont
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SPARK ARRESTOR MUFFLER Cleaning Pro
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FINAL DRIVE TRANSMISSION (CHAINCASE
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LUBRICATING THE LOADER (Cont’d) P
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REMOTE START SWITCH (Cont’d) Proc
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HYDRAULIC SYSTEM Page Number BUCKET
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1 FLUID RESERVOIR: Cap . . . . 15.5
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HYDRAULIC/HYDROSTATIC SCHEMATIC 853
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HYDRAULIC SYSTEM TROUBLESHOOTING Ch
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LIFT CYLINDER(S) Checking the Lift
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TILT CYLINDER Checking the Tilt Cyl
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HYDRAULIC CYLINDER Lift Cylinder Id
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HYDRAULIC CYLINDER (Cont’d) Disas
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HYDRAULIC CYLINDER (Cont’d) Disas
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HYDRAULIC CYLINDER (Cont’d) Assem
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HYDRAULIC CYLINDER (Cont’d) Assem
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MAIN RELIEF VALVE Checking the Main
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MAIN RELIEF VALVE (Cont’d) Remova
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DUAL PRESSURE MAIN RELIEF VALVE - 8
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DUAL PRESSURE MAIN RELIEF VALVE - 8
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SELECT VALVE (G.E.M. Block) 853H Ch
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HYDRAULIC CONTROL VALVE (Cont’d)
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Page 83 and 84: HYDRAULIC CONTROL VALVE (Cont’d)
Page 93 and 94: HYDRAULIC PUMP Checking the Output
Page 95 and 96: HYDRAULIC PUMP (Cont’d) Parts Ide
Page 97 and 98: HYDRAULIC PUMP (Cont’d) Disassemb
Page 99 and 100: HYDRAULIC PUMP (Cont’d) Assembly
Page 101 and 102: HYDRAULIC PUMP (Double Gear) 853H C
Page 103 and 104: HYDRAULIC PUMP (Double Gear) 853H (
Page 113 and 114: HYDRAULIC FLUID RESERVOIR Removal a
Page 115 and 116: HYDRAULIC FILTER HOUSING Removal an
Page 117 and 118: PEDAL INTERLOCK LINKAGE Removal and
Page 119 and 120: Revised June 96 HYDROSTATIC SYSTEM
Page 121 and 122: TROUBLESHOOTING Chart The following
Page 123 and 124: FRONT PANEL Removal and Installatio
Page 125 and 126: STEERING LEVERS Disassembly and Ass
Page 127 and 128: STEERING LEVERS (Cont’d) Pre-Adju
Page 129 and 130: STEERING LEVERS (Cont’d) Adjustin
Page 131 and 132: STEERING LEVERS (Cont’d) Adjustin
Page 133: HYDROSTATIC MOTOR Removal and Insta
Page 137 and 138: HYDROSTATIC MOTOR (Cont’d) Disass
Page 139 and 140: HYDROSTATIC MOTOR (Cont’d) Disass
Page 141 and 142: HYDROSTATIC MOTOR (Cont’d) Assemb
Page 143 and 144: HYDROSTATIC MOTOR (Cont’d) 853, 8
Page 145 and 146: HYDROSTATIC PUMP Removal and Instal
Page 147 and 148: HYDROSTATIC PUMP (Cont’d) Repleni
Page 149 and 150: HYDROSTATIC PUMP (Cont’d) Parts I
Page 151 and 152: HYDROSTATIC PUMP (Cont’d) Parts I
Page 153 and 154: HYDROSTATIC PUMP (Cont’d) Hydraul
Page 155 and 156: HYDROSTATIC PUMP (Cont’d) Charge
Page 157 and 158: HYDROSTATIC PUMP (Cont’d) Disasse
Page 165 and 166: HYDROSTATIC PUMP (Cont’d) Inspect
Page 167 and 168: HYDROSTATIC PUMP (Cont’d) Assembl
Page 177 and 178: HYDROSTATIC PUMP (Cont’d) Hydraul
Page 179 and 180: HYDROSTATIC PUMP (Cont’d) Hydrost
Page 181 and 182: DRIVE BELT Adjusting the Drive Belt
Page 183 and 184: DRIVE BELT TENSIONER PULLEY Removal
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DRIVE BELT TENSIONER PULLEY (Cont
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OIL COOLER Removal and Installation
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DRIVE SYSTEM Page Number AXLE SEAL
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DRIVE SYSTEM PARKING BRAKE PEDAL Re
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PARKING BRAKE DISC Removal and Inst
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FRONT CHAINCASE COVER Removal and I
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AXLE SEAL (Cont’d) Removal and In
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AXLE, BEARINGS AND SPROCKET (Cont
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AXLE, BEARING AND SPROCKET (Cont’
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REDUCTION GEARCASE (Cont’d) Remov
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REDUCTION GEARCASE (Cont’d) Disas
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REDUCTION GEARCASE (Cont’d) Disas
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REDUCTION GEARCASE (Cont’d) Assem
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REDUCTION GEARCASE (Cont’d) Assem
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DRIVE CHAIN 853, 853H BICS Service
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MAIN FRAME Page Number BOB-TACH Bob
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MAIN FRAME SEAT BAR Removal and Ins
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SEAT BAR (Cont’d) Removal and Ins
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OPERATOR CAB GAS CYLINDER Removal a
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OPERATOR CAB Removal and Installati
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OPERATOR SEAT Removal and Installat
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BOB-TACH (Cont’d) Removal and Ins
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BOB-TACH (Cont’d) Bob-Tach Lever
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REAR GRILL Removal and Installation
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REAR DOOR (Cont’d) Hood Removal a
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FUEL TANK (Cont’d) Removal and In
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ELECTRICAL SYSTEM Page Number ALTER
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WIRE LEGEND NO.'s COLOR GAUGE PARTS
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WIRE LEGEND NO.'s COLOR GAUGE 12 Or
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ELECTRICAL SYSTEM TROUBLESHOOTING C
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BATTERY Removal and Installation Ba
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ALTERNATOR (Cont’d) Alternator Re
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ALTERNATOR (Cont’d) Disassembly a
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ALTERNATOR (Cont’d) Assembly Reve
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STARTER (Cont’d) Checking the Sta
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STARTER (Cont’d) Disassembly and
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STARTER (Cont’d) Cleaning and Ins
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FRONT LIGHTS Removal and Installati
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ENGINE SERVICE Page Number AIR CLEA
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ENGINE SERVICE TROUBLESHOOTING Char
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RADIATOR Removal and Installation O
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COOLANT RECOVERY TANK Removal and I
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AIR CLEANER HOUSING Removal and Ins
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BLOWER HOUSING/FAN GEARBOX (Cont’
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BLOWER FAN Removal and Installation
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FAN GEARBOX (Cont’d) Disassembly
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FAN GEARBOX (Cont’d) Assembly (Co
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FAN GEARBOX (Cont’d) Assembly (Co
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FAN GEARBOX (Cont’d) 853, 853H BI
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FAN GEARBOX (Cont’d) Checking Bac
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ENGINE (Cont’d) Removal and Insta
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ENGINE (Cont’d) Engine Mount Repl
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BELT SHIELD Removal and Installatio
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GLOW PLUGS Removal and Installation
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FUEL INJECTION PUMP (Cont’d) Remo
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FUEL INJECTION PUMP (Cont’d) Remo
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FUEL INJECTION PUMP (Cont’d) Timi
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FUEL INJECTOR NOZZLES (Cont’d) Re
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CYLINDER HEAD Removal and Installat
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VALVES, VALVE SEAT AND GUIDE Remova
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VALVES, VALVE SEAT AND GUIDE (Cont
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PISTON AND CONNECTING ROD Removal R
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PISTON AND CONNECTING ROD (Cont’d
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PISTON AND CONNECTING ROD (Cont’d
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CYLINDER LINERS Checking the Cylind
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MAIN BEARINGS (Cont’d) Installati
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CRANKSHAFT Removal and Installation
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CRANKSHAFT GEAR Removal and Install
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TIMING GEARCASE COVER Removal and I
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IDLER GEAR AND HUB Removal Remove t
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FUEL INJECTION PUMP IDLER GEAR Remo
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TIMING GEARCASE 853, 853H BICS Serv
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CAMSHAFT (Cont’d) Camshaft Bearin
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OIL PAN Removal Remove the oil drai
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OIL PUMP (Cont’d) Checking (Cont
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WATER PUMP Removal and Installation
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WATER PUMP (Cont’d) Assembly (Con
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WATER JACKET TUBE Removal and Insta
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SYSTEMS ANALYSIS Page Number BICS S
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BOBCAT INTERLOCK CONTROL SYSTEM (BI
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BICS SYSTEM CONTROLLER (Cont’d) C
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SEAT BAR SENSOR (Cont’d) Seat Bar
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SEAT SENSOR (Cont’d) Seat Sensor
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LIFT LOCK BY-PASS VALVE Removal and
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TILT LOCK VALVE Removal and Install
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BOSS® DIAGNOSTIC TOOL Procedure Th
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SERVICE CODES (Cont’d) The follow
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TROUBLESHOOTING THE BOSS® & LCD DI
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BOSS® INSTRUMENT PANEL Removal and
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PWM MODULE (Cont’d) Description (
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PWM CONTROL HANDLE Handle Testing T
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SPECIFICATIONS Page Number DECIMAL
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LOADER SPECIFICATIONS LOADER DIMENS
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ENGINE SPECIFICATIONS All dimension
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ENGINE SPECIFICATIONS (Cont’d) Al
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TORQUE SPECIFICATIONS FOR LOADER Sp
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HYDRAULIC/HYDROSTATIC FLUID SPECIFI
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DECIMAL AND MILLIMETER EQUIVALENTS
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AFFECTING: Product BOBCAT LOADER Mo
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AFFECTING: Product BOBCAT LOADER Mo
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TAKE OUT PUT IN 853 BICS - OPERATOR
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