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853, 853H BICS Service Manual #6724012 – Hydrostatic System Section Part 3 of 3 –3–74– 853, 853H BICS Loa<strong>de</strong>r Service Manual
DRIVE SYSTEM Page Number AXLE SEAL Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8 AXLE, SPROCKET AND BEARINGS Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–10 CHAINCASE FLUID Removing the Fluid From the Chaincase . . . . . . . . . . . . . . . . . . . . . . . . . 4–26 DRIVE CHAIN Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–25 FRONT CHAINCASE COVER Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7 PARKING BRAKE DISC Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5 PARKING BRAKE PEDAL Disassembly and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4 Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3 REAR CHAINCASE COVER Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7 REDUCTION GEARCASE Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–21 Checking Reduction Gearcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–16 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–16 Reduction Gearcase Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–14 Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–15 DRIVE SYSTEM 853, 853H BICS Loa<strong>de</strong>r –4–1– Service Manual
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EQUIPPED WITH BOBCAT INTERLOCK CONT
Page 5 and 6:
FOREWORD . . . . . . . . . . . . .
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17. Inspect the air cleaner for dam
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SAFETY INSTRUCTIONS Instructions ar
Page 11 and 12:
SERIAL NUMBER LOCATIONS Always use
Page 13 and 14:
All 853 & 853H Bobcat loaders are e
Page 15 and 16:
PREVENTIVE MAINTENANCE Page Number
Page 17 and 18:
SERVICE SCHEDULE Maintenance work m
Page 19 and 20:
TRANSPORTING THE LOADER Procedure A
Page 21 and 22:
LIFT ARM SUPPORT DEVICE Never work
Page 23 and 24:
OPERATOR CAB (Cont’d) Lowering th
Page 25 and 26:
AIR CLEANER SERVICE Replacing Filte
Page 27 and 28:
FUEL SYSTEM Fuel Specifications Use
Page 29 and 30:
ENGINE LUBRICATION SYSTEM Checking
Page 31 and 32:
ENGINE COOLING SYSTEM Cleaning the
Page 33 and 34:
USING A BOOSTER BATTERY (Jump Start
Page 35 and 36:
HYDRAULIC/HYDROSTATIC SYSTEM (Cont
Page 37 and 38:
SPARK ARRESTOR MUFFLER Cleaning Pro
Page 39 and 40:
FINAL DRIVE TRANSMISSION (CHAINCASE
Page 41 and 42:
LUBRICATING THE LOADER (Cont’d) P
Page 43 and 44:
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 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
HYDRAULIC PUMP Checking the Output
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HYDRAULIC PUMP (Cont’d) Parts Ide
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HYDRAULIC PUMP (Cont’d) Disassemb
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HYDRAULIC PUMP (Cont’d) Assembly
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HYDRAULIC PUMP (Double Gear) 853H C
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HYDRAULIC PUMP (Double Gear) 853H (
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Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
HYDRAULIC FLUID RESERVOIR Removal a
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HYDRAULIC FILTER HOUSING Removal an
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PEDAL INTERLOCK LINKAGE Removal and
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Revised June 96 HYDROSTATIC SYSTEM
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TROUBLESHOOTING Chart The following
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FRONT PANEL Removal and Installatio
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STEERING LEVERS Disassembly and Ass
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STEERING LEVERS (Cont’d) Pre-Adju
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STEERING LEVERS (Cont’d) Adjustin
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STEERING LEVERS (Cont’d) Adjustin
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HYDROSTATIC MOTOR Removal and Insta
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HYDROSTATIC MOTOR (Cont’d) Disass
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Page 139 and 140:
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
Page 185 and 186: DRIVE BELT TENSIONER PULLEY (Cont
Page 191: OIL COOLER Removal and Installation
Page 195 and 196: DRIVE SYSTEM PARKING BRAKE PEDAL Re
Page 197 and 198: PARKING BRAKE DISC Removal and Inst
Page 199 and 200: FRONT CHAINCASE COVER Removal and I
Page 201 and 202: AXLE SEAL (Cont’d) Removal and In
Page 203 and 204: AXLE, BEARINGS AND SPROCKET (Cont
Page 205 and 206: AXLE, BEARING AND SPROCKET (Cont’
Page 207 and 208: REDUCTION GEARCASE (Cont’d) Remov
Page 209 and 210: REDUCTION GEARCASE (Cont’d) Disas
Page 211 and 212: REDUCTION GEARCASE (Cont’d) Disas
Page 213 and 214: REDUCTION GEARCASE (Cont’d) Assem
Page 215 and 216: REDUCTION GEARCASE (Cont’d) Assem
Page 217 and 218: DRIVE CHAIN 853, 853H BICS Service
Page 219 and 220: MAIN FRAME Page Number BOB-TACH Bob
Page 221 and 222: MAIN FRAME SEAT BAR Removal and Ins
Page 223 and 224: SEAT BAR (Cont’d) Removal and Ins
Page 225 and 226: OPERATOR CAB GAS CYLINDER Removal a
Page 227 and 228: OPERATOR CAB Removal and Installati
Page 229 and 230: OPERATOR SEAT Removal and Installat
Page 231 and 232: BOB-TACH (Cont’d) Removal and Ins
Page 233 and 234: BOB-TACH (Cont’d) Bob-Tach Lever
Page 235 and 236: REAR GRILL Removal and Installation
Page 237 and 238: REAR DOOR (Cont’d) Hood Removal a
Page 239 and 240: FUEL TANK (Cont’d) Removal and In
Page 241 and 242: 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
Page 300 and 301:
RADIATOR Removal and Installation O
Page 302 and 303:
COOLANT RECOVERY TANK Removal and I
Page 304 and 305:
AIR CLEANER HOUSING Removal and Ins
Page 306 and 307:
BLOWER HOUSING/FAN GEARBOX (Cont’
Page 308 and 309:
BLOWER FAN Removal and Installation
Page 310 and 311:
FAN GEARBOX (Cont’d) Disassembly
Page 312 and 313:
Page 314 and 315:
Page 316 and 317:
FAN GEARBOX (Cont’d) Assembly (Co
Page 318 and 319:
FAN GEARBOX (Cont’d) Assembly (Co
Page 320 and 321:
FAN GEARBOX (Cont’d) 853, 853H BI
Page 322 and 323:
FAN GEARBOX (Cont’d) Checking Bac
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ENGINE (Cont’d) Removal and Insta
Page 326 and 327:
Page 328 and 329:
Page 330 and 331:
ENGINE (Cont’d) Engine Mount Repl
Page 332 and 333:
BELT SHIELD Removal and Installatio
Page 334 and 335:
GLOW PLUGS Removal and Installation
Page 336 and 337:
FUEL INJECTION PUMP (Cont’d) Remo
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FUEL INJECTION PUMP (Cont’d) Remo
Page 340 and 341:
FUEL INJECTION PUMP (Cont’d) Timi
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FUEL INJECTOR NOZZLES (Cont’d) Re
Page 344 and 345:
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
Page 352 and 353:
PISTON AND CONNECTING ROD (Cont’d
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PISTON AND CONNECTING ROD (Cont’d
Page 356 and 357:
CYLINDER LINERS Checking the Cylind
Page 358 and 359:
MAIN BEARINGS (Cont’d) Installati
Page 360 and 361:
CRANKSHAFT Removal and Installation
Page 362 and 363:
CRANKSHAFT GEAR Removal and Install
Page 364 and 365:
TIMING GEARCASE COVER Removal and I
Page 366 and 367:
IDLER GEAR AND HUB Removal Remove t
Page 368 and 369:
FUEL INJECTION PUMP IDLER GEAR Remo
Page 370 and 371:
TIMING GEARCASE 853, 853H BICS Serv
Page 372 and 373:
CAMSHAFT (Cont’d) Camshaft Bearin
Page 374 and 375:
OIL PAN Removal Remove the oil drai
Page 376 and 377:
OIL PUMP (Cont’d) Checking (Cont
Page 378 and 379:
WATER PUMP Removal and Installation
Page 380 and 381:
WATER PUMP (Cont’d) Assembly (Con
Page 382 and 383:
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
Page 388 and 389:
Page 390 and 391:
Page 392 and 393:
Page 394 and 395:
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
Page 404 and 405:
BOSS® DIAGNOSTIC TOOL Procedure Th
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SERVICE CODES (Cont’d) The follow
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TROUBLESHOOTING THE BOSS® & LCD DI
Page 410 and 411:
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
Page 434:
AFFECTING: Product BOBCAT LOADER Mo
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TAKE OUT PUT IN 853 BICS - OPERATOR
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