Bobcat 853, 853H HIGH-FLOW Skid-Steer Loader Repair Service Manual – 6720755

(S/N: 508411001–508417999) – (S/N: 509711001–509717999) – (S/N: 510250001 & Above) – (S/N: 510375001 & Above) – (S/N: 512815001–512815999) – (S/N: 510125001 & Above) – (S/N: 512311001 & Above)
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This workshop repair service manual PDF download for the 853, 853H Bobcat Skid-Steer Loader has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to fully at every opportunity.

APPLICABLE MODELS :

Bobcat Loader 853, 853H
HIGH FLOW
(S/N: 508411001–508417999)
(S/N: 509711001–509717999)
(S/N: 510250001 & Above)
(S/N: 510375001 & Above)
(S/N: 512815001–512815999)
(S/N: 510125001 & Above)
(S/N: 512311001 & Above)

TABLE OF CONTENTS :

FOREWORD
SAFETY INSTRUCTIONS
SERIAL NUMBER LOCATIONS
DELIVERY REPORT
BOBCAT LOADER IDENTIFICATION
PREVENTIVE MAINTENANCE
HYDRAULIC SYSTEM
HYDROSTATIC SYSTEM
DRIVE SYSTEM
MAIN FRAME
ELECTRICAL SYSTEM
ENGINE SERVICE
SYSTEM ANALYSIS
SPECIFICATIONS
SERVICE MANUAL REVISIONS

MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 6720755 (6–99)
Total Pages : 396

This 853, 853H Bobcat Loader Manual PDF Download contains specs, diagrams, actual real photo illustrations, and schemes. In addition to space savings, nice thing about having completly searcheble PDF files instead of a hard-printed manual is that you can use the Search feature in your PDF reader software (Adobe Acrobat) to find just what your looking for and just print out the exact pages you need or all manual easily. This is the same manual your local dealer will use when doing a repair. This is a must for the Do-It-Yourselfer! Saving Yourself $$$$$$ In Service Repair And Maintenance Costs !!!!

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MAINTENANCE SAFETY
ALPHABETICAL INDEX
CONTENTS
FOREWORD
SAFETY INSTRUCTIONS
SERIAL NUMBER LOCATIONS
LOADER SERIAL NUMBER
ENGINE SERIAL NUMBER
DELIVERY REPORT
BOBCAT LOADER IDENTIFICATION

PREVENTIVE MAINTENANCE
SERVICE SCHEDULE
LIFTING AND BLOCKING THE LOADER
Procedure
TRANSPORTING THE LOADER
Procedure
TOWING THE LOADER
Procedure
LIFTING THE LOADER
Four Point Lift
Single Point Lift
LIFT ARM SUPPORT DEVICE
Engaging The Lift Arm Support Device
Disengaging The Lift Arm Support Device
OPERATOR CAB
Description
Raising The Operator Cab
Lowering The Operator Cab
Emergency Exit
SEAT BAR RESTRAINT SYSTEM
Description
Inspecting The Seat Bar
Maintaining The Seat Bar
AIR CLEANER SERVICE
Replacing Filter Element
FUEL SYSTEM
Fuel Specifications
Filling The Fuel Tank
Fuel Filter
Removing Air From The Fuel System
ENGINE LUBRICATION SYSTEM
Checking Engine Oil
Replacing Oil And Filter
ENGINE COOLING SYSTEM
Checking The Coolant Level
Cleaning The Cooling System
Replacing The Coolant
ALTERNATOR BELT
Adjusting The Alternator Belt
HYDRAULIC/HYDROSTATIC SYSTEM
Checking And Adding Fluid
Replacing Hydraulic/Hydrostatic Filters
Replacing The Hydraulic Fluid
Hydraulic Reservoir Breather Cap
SPARK ARRESTOR MUFFLER
Cleaning Procedure
TIRE MAINTENANCE
Wheel Nuts
Tire Rotation
Tire Mounting
FINAL DRIVE TRANSMISSION (CHAINCASE)
Checking And Adding Oil
FAN GEARBOX
Checking And Maintaining
LUBRICATING THE LOADER
Procedure
REMOTE START SWITCH
Procedure

HYDRAULIC SYSTEM
HYDRAULIC/HYDROSTATIC SCHEMATICS
TROUBLESHOOTING
HYDRAULIC SYSTEM INFORMATION
Tighten Procedures
LIFT CYLINDER(S)
Checking The Lift Cylinder
Removal And Installation
TILT CYLINDER
Checking The Tilt Cylinder
Rod End Seal
HYDRAULIC CYLINDER
Lift Cylinder Identification
Tilt Cylinder Identification
Disassembly
Assembly
MAIN RELIEF VALVE
Checking The Main Relief Valve
Checking The Main Relief Valve Without Auxiliaries
Removal And Installation
DUAL PRESSURE MAIN RELIEF VALVE (S/N 512811001 & Above) W/ Select Valve (JEM)
Checking The Low Setting
Checking The High Setting
Adjusting The Low Setting
Adjusting The High Setting
HYDRAULIC CONTROL VALVE
Removal And Installation
SELECT VALVE (S/N 512811001 & Above) W/SelectValve (JEM)
Checking The Relief Valve
Removal And Installation
Disassembly And Assembly
Solenoid Testing
HYDRAULIC FILTER HOUSING
Removal And Installation
HYDRAULIC PUMP
Checking The Output Of The Pump
Removal And Installation
HYDRAULIC FLUID RESERVOIR
Removal And Installation
LOCK VALVE (S/N 5103)
Removal And Installation
BUCKET POSITION VALVE (S/N 5102) & (S/N 5103)
Removal And Installation
FRONT AUXILIARY CONTROL VALVE (Apitech)
Removal And Installation
CONTROL PEDALS
Removal And Installation
Pedal Adjustment
PEDAL INTERLOCK LINKAGE
Removal And Installation
Pedal Interlock Linkage Adjustment

HYDROSTATIC SYSTEM
TROUBLESHOOTING
HYDROSTATIC SYSTEM INFORMATION
Replenishing Valve Function
Tow Valves
FRONT PANEL
Removal And Installation
STEERING LEVERS
Disassembly And Assembly
Neutral Pre–Adjustment Checks
Adjusting Lever Freeplay
Adjusting The Wheel RPM Forward Compared To Reverse Travel
Adjusting The Steering Neutral Setting
Adjusting The Wheel RPM Left Compared To Right Side
Hydrostatic Pump Neutral Adjustment
HYDROSTATIC MOTOR
Removal And Installation
HYDROSTATIC CHARGE OIL FILTER
Removal And Installation
COLD OIL BY–PASS VALVE
Removal And Installation
HYDROSTATIC PUMP
Removal And Installation
Replenishing/High Pressure Relief Valve
DRIVE BELT SHIELD
Removal And Installation
DRIVE BELT
Replacing The Drive Belt
SPRING LOADED TENSIONER PULLEY
Parts Identification
Disassembly
Assembly
Adjusting The Drive Belt
FIXED TENSIONER PULLEY
Removal And Installation
Disassembly
Assembly
Checking Pulley End Play
Adjusting The Drive Belt
OIL COOLER
Removal And Installation

DRIVE SYSTEM
PARKING BRAKE PEDAL
Adjustment
PARKING BRAKE
Removal And Installation
Brake Block And Pads
Brake Discs
FRONT CHAINCASE COVER
Removal And Installation
REAR CHAINCASE COVER
Removal And Installation
AXLE SEAL
Removal And Installation
AXLE, SPROCKET AND BEARINGS
Removal And Installation
REDUCTION GEARCASE
Reduction Gearcase Seal
Removal And Installation
Checking Reduction Gearcase
Disassembly
Assembly
DRIVE CHAIN
Removal And Installation
CHAINCASE FLUID
Removing The Fluid From The Chaincase

MAIN FRAME
OPERATOR CAB GAS CYLINDER
Removal And Installation
Disassembly And Assembly
OPERATOR CAB
Removal And Installation
BOB–TACH
Removal And Installation
Bob–Tach Lever And Wedge
Bob–Tach Stops
LIFT ARMS
Removal And Installation
REAR GRILL
Removal And Installation
REAR DOOR
Removal And Installation
Hood Removal And Installation
Bumper Removal And Installation
Door Latch Removal And Installation
Door Latch And Catch Adjustment
FUEL TANK
Removal And Installation
Inlet Screen

ELECTRICAL SYSTEM
ELECTRICAL SCHEMATICS
TROUBLESHOOTING
ELECTRICAL SYSTEM INFORMATION
Description
Fuse Location
BATTERY
Removal And Installation
Servicing The Electrical System
Using A Booster Battery (Jump Starting)
ALTERNATOR
Alternator Output Test
Rectifier (Diode) Test
Alternator Regulator Test
Removal And Installation
Disassembly
Stator Continuity Test
Stator Ground Test
Rotor Continuity Test
Rotor Ground Test
Rectifier Continuity (Diode) Test
Assembly
STARTER
Checking The Starter
Removal And Installation
Parts Identification
Disassembly And Assembly
Cleaning And Inspection
STANDARD INSTRUMENT PANEL
Removal And Installation
FRONT LIGHTS
Removal And Installation
STEERING LEVER CONTROL HANDLE (Early Series)
Disassembly And Assembly

ENGINE SERVICE
TROUBLESHOOTING
ENGINE SPEED CONTROL
Removal And Installation
ENGINE MUFFLER
Removal And Installation
AIR CLEANER HOUSING
Removal And Installation
COOLANT RECOVERY TANK
Removal And Installation
RADIATOR
Removal And Installation
FAN DRIVE TENSION PULLEY
Removal And Installation
FAN GEARBOX/BLOWER HOUSING
Removal And Installation
FAN GEARBOX
Parts Identification
Disassembly
Assembly
Checking Backlash
ENGINE
Removal And Installation
FLYWHEEL
Removal And Installation
Flywheel Ring Gear
BELT SHIELD
Removal And Installation
ENGINE MOUNTS
Removal And Installation
GLOW PLUGS
Checking The Glow Plugs
Removal And Installation
VALVE CLEARANCE
Adjustment
ENGINE COMPRESSION
Checking
FUEL INJECTION PUMP
Description
Removal And Installation
Timing The Injection Pump
FUEL INJECTOR NOZZLES
Checking
Removal And Installation
CYLINDER HEAD
Removal And Installation
Cylinder Head Surface Alignment
Exhaust Manifold
VALVES, VALVE SEAT AND GUIDE
Removal
Installation
Reconditioning The Valve And Valve Seats
Valve Seat Insert
Valve Guide
Valve Spring
ROCKER ARM AND SHAFT
Disassembly And Assembly
Checking Rocker Arm And Push Rods
PISTON AND CONNECTING ROD
Removal
Disassembly
Checking
Assembly
Installation
CYLINDER LINERS
Checking The Cylinder Bore
Removal
Installation
MAIN BEARINGS
Description
Removal
Installation
Crankshaft End Play
CRANKSHAFT
Removal And Installation
Checking The Crankshaft
CRANKSHAFT GEAR
Removal And Installation
TIMING GEARCASE COVER SEAL
Removal And Installation
TIMING GEARCASE COVER
Removal And Installation
IDLER GEAR AND HUB
Checking
Installation
FUEL INJECTION PUMP IDLER GEAR
Removal And Installation
Bearing Installation
CAMSHAFT GEAR
Removal And Installation
TIMING GEARCASE
Removal And Installation
CAMSHAFT
Removal And Installation
Checking
Camshaft Bearings
Tappets
Tappet Installation
OIL PAN
Removal
Installation
OIL PUMP
Removal And Installation
Checking
Gear Replacement
Rotor Replacement
Oil Pump Relief Valve
Oil Filter Housing And Block
WATER PUMP
Removal And Installation
Disassembly
Assembly
THERMOSTAT
Removal And Installation
Checking The Thermostat
WATER JACKET TUBE
Removal And Installation

SYSTEM ANALYSIS
BOSS® DIAGNOSTIC TOOL
Procedure
SENDER AND SENSOR
Service Checks
Component
RPM SENSOR
Adjustment
SERVICE CODES
Chart
TROUBLESHOOTING THE BOSS® & LCD DISPLAY
BOSS® UNIT
Removal And Installation
BOSS® INSTRUMENT PANEL
Removal And Installation

SPECIFICATIONS
LOADER SPECIFICATIONS
Loader Dimensions
Performance
Controls
Engine
Hydraulic System
Electrical
Drive System
Capacities
Tires
ENGINE SPECIFICATIONS
Cylinder Head
Valve, Valve Guide & Seat Insert
Valve Springs
Rocker Arm
Tappets
Piston, Pin & Rings
Connecting Rod & Bearing
Cylinder Liners
Camshaft
Crankshaft
Idler Gear
Oil Pump
Fuel System
TORQUE SPECIFICATIONS FOR LOADER
TORQUE SPECIFICATIONS FOR BOLTS
Torque For General SAE Bolts
Torque For General Metric Bolts
HYDRAULIC CONNECTION SPECIFICATIONS
O–ring Face Seal Connection
Straight Thread O–ring Fitting
Tubelines And Hoses
Flare Fitting
O–ring Flare Fitting
Port Seal Fitting
HYDRAULIC/HYDROSTATIC FLUID SPECIFICATIONS
DECIMAL AND MILLIMETER EQUIVALENTS
U.S. TO METRIC CONVERSION

SERVICE MANUAL REVISIONS
850–001
850–002
850–003
850–004
850–005
850–006
850–007
850–008
850–009
850–010
850–011
850–012
850–013
850-014

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