(S/N: 516311001 & Above – S/N: 516411001 & Above)
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This workshop repair service manual PDF download for the 553 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 553
S/N: 516311001 & Above
S/N: 516411001 & 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 : 6900450 (1–98)
Total Pages : 366
This 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 SKID STEER LOADER IDENTIFICATION
PREVENTIVE MAINTENANCE
SERVICE SCHEDULE
LIFTING AND BLOCKING THE LOADER
Procedure
TOWING THE LOADER
Procedure
STOPPING THE BOBCAT LOADER
LIFT ARM SUPPORT DEVICE
Engaging The Lift Arm Support Device
Disengaging The Lift Arm Support Device
OPERATOR CAB
Raising The Operator Cab
Lowering The Operator Cab
Emergency Exit
SEAT BAR RESTRAINT SYSTEM
Description
Seat Bar Inspection
Seat Bar Maintenance
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
Oil Chart
Replacing Oil And Filter
ENGINE COOLING SYSTEM
Cleaning The Cooling System
Replacing The Coolant
ALTERNATOR BELT
Adjusting The Alternator Belt
HYDRAULIC/HYDROSTATIC SYSTEM
Description
Checking And Adding Fluid
Replacing The Hydraulic/Hydrostatic Filter
Replacing Hydraulic Fluid
SPARK ARRESTOR MUFFLER
Cleaning Procedure
TIRE MAINTENANCE
Wheel Nuts
Tire Rotation
Tire Mounting
FINAL DRIVE TRANSMISSION (CHAINCASE)
Checking And Adding Oil
LUBRICATING THE BOBCAT LOADER
Procedure
PIVOT PINS
BOB–TACH
Inspection And Maintenance
AUXILIARY CONTROL LOCKBOLT
Removal
U–JOINT LUBRICATION
Procedure
REMOTE START SWITCH
Procedure
HYDRAULIC SYSTEM
HYDRAULIC / HYDROSTATIC SCHEMATICS
GLOSSARY OF HYDRAULIC / HYDROSTATIC SYMBOLS
TROUBLESHOOTING
HYDRAULIC SYSTEM INFORMATION
Tighten Procedures
LIFT CYLINDERS
Checking The Lift Cylinder(s)
Removal And Installation
TILT CYLINDER
Checking The Tilt Cylinder
Removal And Installation
HYDRAULIC CYLINDER
Lift Cylinder Identification
Tilt Cylinder Identification
Disassembly And Assembly
MAIN RELIEF VALVE
Checking The Main Relief Valve Without Auxiliaries
Checking The Main Relief Valve With Auxiliaries
Removal And Installation
Adjustment
HYDRAULIC CONTROL VALVE
Removal And Installation
Identification Chart
Disassembly and Assembly
Load Check Valve
Main Relief Valve
Anti–Cavitation Check Valve
Rubber Boot
Lift Spool Detent
Tilt Centering Spring
One Way Restrictors
Inspection
Spool Seal Installation
HYDRAULIC PUMP
Checking The Output Of The Hydraulic Pump
Removal And Installation
Parts Identification
Disassembly And Assembly
Inspection
HYDRAULIC FLUID RESERVOIR
Removal And Installation
LIFT LOCK BY–PASS VALVE
Removal And Installation
Disassembly and Assembly
TILT LOCK VALVE
Removal And Installation
Disassembly And Assembly
HYDRAULIC FILTER HOUSING
Removal And Installation
CONTROL PEDALS
Removal And Installation
Pedal Adjustment
PEDAL INTERLOCK LINKAGE
Removal And Installation
Adjustment
CROSSMEMBER LINKAGE
Removal And Installation
HYDROSTATIC SYSTEM
TROUBLESHOOTING
HYDROSTATIC SYSTEM INFORMATION
Replenishing Valve Function
CONTROL PANEL
Removal And Installation
STEERING LEVERS
Removal And Installation
Disassembly And Assembly
STEERING LINKAGE
Removal And Installation
Pintle Lever Disassembly And Assembly
Steering Neutral Adjustment
HYDROSTATIC MOTOR
Removal And Installation
Parts Identification
Disassembly And Assembly
Inspection
Timing The Hydrostatic Motor
HYDROSTATIC PUMP
Checking Charge Pressure
Removal And Installation
Drive Coupler Removal And Installation
Parts Identification
Disassembly And Assembly
Inspection
PORT BLOCK
Removal And Installation
Oil Cooler By–Pass Valve
Hydraulic Oil Temperature Switch
Charge Pressure By–Pass Valve
OIL COOLER
Removal and Installation
DRIVE SYSTEM
PARKING BRAKE
Removal And Installation
Disassembly And Assembly
PARKING BRAKE DISC
Removal and Installation
TRACTION LOCK GUIDES
Removal and Installation
CHAINCASE FLUID
Removing Oil From The Chaincase
CHAINCASE COVERS
Front Cover Removal And Installation
Rear Cover Removal And Installation
AXLE SEAL
Removal And Installation
AXLE, BEARINGS, AND SPROCKET
Removal And Installation
DRIVE CHAIN
Removal
MAIN FRAME
SEAT BAR
Removal And Installation
Assembling Components
Compression Spring Disassembly And Assembly
OPERATOR CAB GAS CYLINDER
Removal And Installation
Disassembly And Assembly
OPERATOR CAB
Removal And Installation
OPERATOR SEAT
Removal And Installation
REAR DOOR
Removal And Installation
Door Latch Adjustment
Striker Removal And Installation (S/N 516313551 & Above) & (S/N 516415035 & Above)
Striker Disassembly And Assembly (S/N 516313551 & Above) & (S/N 516415035 & Above)
Adjusting The Striker (S/N 516313551 & Above) & (S/N 516415035 & Above)
Latch Removal And Installation (S/N 516313551 & Above) & (S/N 516415035 & Above)
FUEL TANK
Removal And Installation
Fuel Level Sender
BOB–TACH
Removal And Installation
Bob–Tach Lever And Wedge
LIFT ARMS
Removal and Installation
REAR GRILL
Removal And Installation
ELECTRICAL SYSTEM
ELECTRICAL SCHEMATICS
TROUBLESHOOTING
ELECTRICAL SYSTEM INFORMATION
Description
Fuse Location
Relay Switches Location
BATTERY
Removal And Installation
USING A BOOSTER BATTERY (JUMP STARTING)
Procedure
ALTERNATOR
Removal And Installation
Adjusting The Alternator Belt
Description
Tests
Alternator Output Test
Full Field Test
Alternator Regulator Test
Alternator Regulator Test With Voltmeter
Parts Identification
Pulley Removal And Installation
Disassembly And Assembly
Rotor Continuity Test
Stator Continuity Test
Rectifier Continuity (Diode) Test
Brush Length
STARTER
Removal And Installation
Checking The Starter In The Loader
Parts Identification
Disassembly
Inspection And Repair
No Load Test
Assembly
INSTRUMENT PANEL
Removal And Installation
FRONT LIGHTS
Removal And Installation
ENGINE SERVICE
TROUBLESHOOTING
ENGINE SPEED CONTROL
Removal and Installation
Disassembly
Linkage Bar Removal And Installation
RADIATOR
Removal And Installation
ENGINE MUFFLER
Removal And Installation
AIR CLEANER
Removal And Installation
ENGINE
Removal And Installation
U–JOINT COUPLER
Removal And Installation
Disassembly and Assembly
RUBBER DRIVE COUPLER
Removal And Installation
Disassembly
Assembly
FLYWHEEL
Removal And Installation
FLYWHEEL HOUSING
Flywheel Ring Gear
Removal And Installation
ENGINE MOUNTING BRACKETS
Removal and Installation
BLOWER FAN HOUSING
Removal And Installation
ENGINE COMPRESSION
Checking
GLOW PLUGS
Checking
Removal And Installation
FUEL SHUT–OFF SOLENOID
Removal And Installation
FUEL LIFT PUMP
Removal And Installation
FUEL INJECTION PUMP
Checking The Injection Pump
Removal And Installation
Timing The Injection Pump
FUEL INJECTOR NOZZLES
Removal and Installation
Checking Fuel Injector Nozzles
THERMOSTAT
Removal And Installation
WATER PUMP
Removal And Installation
TIMING GEAR CASE COVER
Removal And Installation
OIL PUMP
Removal And Installation
CRANKSHAFT FRONT SEAL
Removal And Installation
ENGINE SPEED CONTROL PLATE
Removal And Installation
Governor Spring Removal
Start Spring Removal
Idle Limit And Fuel Limit Adjustment
EXHAUST MANIFOLD
Removal And Installation
VALVE COVER
Removal And Installation
ROCKER ARM
Removal And Installation
PUSH ROD
Removal And Installation
TAPPET
Removal And Installation
WATER FLANGE
Removal And Installation
CYLINDER HEAD
Removal
Installation
Checking Piston Top Clearance
Disassembly
Assembly
Servicing The Cylinder Head
Combustion Chamber Removal And Installation
IDLER GEAR
Removal And Installation
CAMSHAFT
Removal And Installation
FUEL CAMSHAFT
Removal And Installation
OIL PAN
Removal And Installation
GOVERNOR SHAFT
Removal And Installation
GOVERNOR FORK LEVER
Removal And Installation
PISTON
Removal And Installation
Checking The Piston And Connecting Rod
Connecting Rod Alignment
Piston Ring Gap
Piston Ring Installation
Connecting Rod Installation
Checking Engine Cylinder Bore
CRANKSHAFT
Removal And Installation
Checking Crankshaft Journal And Block Bearing
Checking The Crankshaft Journal And Main Bearing
Connecting Rod Journal
Checking The End Play Of The Crankshaft
Crankshaft Alignment
ENGINE TIMING
Installation
TIMING GEAR BACKLASH
Idler Gear And Crankshaft
Idler Gear And Camshaft Gear
Idler Gear And Fuel Camshaft Gear
Fuel Camshaft Gear And Governor Shaft Gear
SYSTEMS ANALYSIS
BICS™ – BOBCAT INTERLOCK CONTROL SYSTEM
BICS™ (With Press To Operate Button)
Inspecting The BICS™ Controller (Engine STOPPED – Key ON)
Inspecting Deactivation Of The Auxiliary Hydraulics System (Engine STOPPED – Key ON)
nspecting The Seat Bar Sensor (Engine RUNNING)
Inspecting The Traction Lock (Engine RUNNING)
Inspecting The Lift Arm By–Pass Control
Additional Inspection For Loaders With Advanced Hand Controls
Troubleshooting Chart
BICS™ (Without Press To Operate Button)
Inspecting The BICS Controller (Engine STOPPED –Key ON)
Inspecting Deactivation Of The Auxiliary Hydraulics System (Engine STOPPED–Key ON)
Inspecting The Seat And Seat Bar Sensors (Engine RUNNING)
nspecting The Traction Lock (Engine RUNNING)
Inspecting The Lift Arm By–Pass Control
Maintenance
Troubleshooting Chart
BICS™ SYSTEM CONTROLLER
Troubleshooting Guide
Removal And Installation
SEAT BAR SENSOR
Troubleshooting Guide
Seat Bar Sensor Test
Removal And Installation
BICS™ Controller Seat Bar Sensor Circuit Test
SEAT SENSOR
Troubleshooting Guide
Seat Sensor Test
Removal And Installation
BICS™ Controller Seat Sensor Circuit Test
TRACTION LOCK
Troubleshooting Guide
Removal and Installation
SPECIFICATIONS
LOADER SPECIFICATIONS
Loader Dimensions
Performance
Controls
Engine
Hydraulic System
Electrical
Drive System
Capacities
Tires
ENGINE SPECIFICATIONS
Engine Compression
Fuel Injection Nozzles
Fuel Injection Pump
Cylinder Head
Valves
Valve Springs
Rocker Arms
Camshaft
Cylinders
Piston Rings
Pistons
Crankshaft
Oil Pump
Thermostat
Grinding Specifications for the Crankshaft
TORQUE SPECIFICATIONS FOR LOADER
Specifications
HYDRAULIC/HYDROSTATIC FLUID SPECIFICATIONS
Specifications
METRIC TORQUE SPECIFICATIONS FOR BOLTS
STANDARD TORQUE SPECIFICATIONS FOR BOLTS
DECIMAL AND MILLIMETER EQUIVALENTS
U.S. TO METRIC CONVERSION
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
SERVICE MANUAL REVISIONS
553-1
553-2
553-3
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Bobcat 553 Skid-Steer Loader Repair Service Manual – 6900450.pdf
Source : Sitelux.com
