Bobcat 742B, 743B Skid-Steer Loader Repair Service Manual - 6720772

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This workshop repair service manual PDF download for the 742B, 743B 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 742B 
Bobcat Loader 743B


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 
SPECIFICATIONS 
SERVICE MANUAL REVISIONS


MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 6720772 (7–92)
Total Pages : 294


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
CONTENTS
    FOREWORD
    SAFETY INSTRUCTIONS
    SERIAL NUMBER LOCATIONS
    LOADER SERIAL NUMBER
    ENGINE SERIAL NUMBER (743B)
    ENGINE SERIAL NUMBER (742B)
    DELIVERY REPORT
    BOBCAT SKID STEER LOADER IDENTIFICATION
    
PREVENTIVE MAINTENANCE
    SERVICE SCHEDULE
    LIFTING AND BLOCKING THE LOADER
        Procedure
    PARKING THE BOBCAT LOADER
        Procedure
    TRANSPORTING THE BOBCAT LOADER
    LIFT ARM SUPPORT DEVICE
        To Engage Lift Arm Support Device
        To Disengage Lift Arm Support Device
    OPERATOR CAB
        Raising The Operator Cab
        Lowering The Operator Cab
    SEAT BAR RESTRAINT SYSTEM
        Description
        Seat Bar Inspection
        Seat Bar Maintenance
    AIR CLEANER SERVICE (743B)
        Replacement Of The Filter Element
    AIR CLEANER SERVICE (742B)
        Replacement Of The Filter Element
    FUEL SYSTEM (743B)
        Fuel Specifications
        Filling The Fuel Tank
        Fuel Filter
        Removing Air From The Fuel System
    FUEL SYSTEM (742B)
        Fuel Specifications
        Filling The Fuel Tank
        Fuel Filter
    ENGINE LUBRICATION SYSTEM (743B)
        Checking Engine Oil
        Replacing Oil And Filter
    ENGINE LUBRICATION SYSTEM (742B)
        Checking Engine Oil
        Replacement Of Oil And Filter
    ENGINE COOLING SYSTEM (743B)
        Coolant Level
        Cleaning The Cooling System
        Removing Coolant From The Cooling System
    ENGINE COOLING SYSTEM (742B)
        Coolant Level
        Cleaning The Cooling System
        Removing Coolant From The Cooling System
    ALTERNATOR BELT ADJUSTMENT (743B)
        Adjusting The Alternator Belt
    ALTERNATOR BELT ADJUSTMENT (742B)
        Adjusting The Alternator Belt
    GOVERNOR (742B)
        Governor Belt Adjustment
        Governor Adjustment
        Governor Oil Level
    USING A BOOSTER BATTERY (Jump Starting)
        Procedure
    HYDRAULIC/HYDROSTATIC SYSTEM
        Checking And Adding Fluid
        Hydraulic/Hydrostatic Filter Replacement
        Removing The 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
    U–JOINT LUBRICATION
        Procedure
    REMOTE START SWITCH
        Procedure
        
HYDRAULIC SYSTEM
    HYDRAULIC / HYDROSTATIC SCHEMATICS
    TROUBLESHOOTING
    HYDRAULIC SYSTEM INFORMATION
        Flare Connections
        O–Ring Face Seal Connection
        Straight Thread O–ring Fitting
        Tubelines And Hoses
    LIFT CYLINDER
        Checking The Lift Cylinder(s)
        Removal And Installation
    TILT CYLINDER
        Checking The Tilt Cylinder
        Removal And Installation
    HYDRAULIC CONTROL VALVE
        Checking The Main Relief Valve W/Auxiliary Couplers (Opt.)
        Checking The Main Relief Valve W/O Auxiliaries
        Main Relief Valve Removal And Installation
        Adjusting The Main Relief Valve
        Removal And Installation
    HYDRAULIC PUMP
        Checking The Output Of The Hydraulic Pump
        Removal And Installation
    PORT BLOCK
        Removal And Installation
        Cold Weather By–Pass Valve
        Case Drain Relief Valve
    HYDRAULIC FLUID RESERVOIR
        Removal And Installation
    HYDRAULIC CONTROL PEDALS
        Removal And Installation
        Adjustment
    PEDAL INTERLOCK LINKAGE
        Installation
        Adjustment
    HYDRAULIC FLUID FILTER HOUSING
        Removal And Installation
        
HYDROSTATIC SYSTEM
    TROUBLESHOOTING
    HYDROSTATIC SYSTEM INFORMATION
        High Pressure Relief/Replenishing Valve Function
    FRONT PANEL
        Removal And Installation
    STEERING LEVERS
        Removal And Installation
        Repairing The Steering Levers
    STEERING LINKAGE
        Steering Linkage Adjustment
        Removal And Installation 
        Repairing The Pintle Lever
    HYDROSTATIC MOTOR
        Removal And Installation
    HYDROSTATIC PUMP
        Checking Charge Pressure
        Charge Pressure Relief Valve
        Checking High Pressure Relief Valves
        Removal And Installation
        Hydrostatic Pump Rear Mount
        High Pressure Hose Routing
        Tow Valves
        
DRIVE SYSTEM
    PARKING BRAKE
        Adjustment
        Removal And Installation
        Brake Block And Pads
        Brake Disc Removal And Installation
        Rear Transmission Cover Installation
    MOTOR CARRIER
        Shaft Seal Replacement
        Removal And Installation (Later Models)
        Disassembly And Assembly (Later Models)
        Disassembly And Assembly (Early Models)
    AXLE SEAL
        Removal And Installation
    AXLE, SPROCKET AND BEARINGS
        Removal And Installation
    DRIVE CHAIN
        Removal And Installation
    CHAINCASE FLUID
        Replacing The Chaincase Fluid
        
MAIN FRAME
    OPERATOR CAB
        Removal And Installation
    OPERATOR CAB GAS CYLINDER
        Removal And Installation
    REAR DOOR
        Door Latch Adjustment
        Removal And Installation
    REAR GRILL
        Removal And Installation
    BOB–TACH
        Removal And Installation
        Bob–Tach Lever And Wedge
    LIFT ARMS
        Removal And Installation
    FUEL TANK
        Removal And Installation
        Fuel Tank Sender Switch
        
ELECTRICAL SYSTEM
    ELECTRICAL SCHEMATICS
    ELECTRICAL SYSTEM INFORMATION
    TROUBLESHOOTING
    BATTERY
        Checking The Battery
        Removal And Installation
    ALTERNATOR BELT SHIELD (743B)
        Removal And Installation
    ALTERNATOR
        Checking The Alternator Output (Old Style)
        Checking The Alternator Regulator (Old Style)
        Alternator Output Test (New Style)
        Rectifier (Diode) Test (New Style)
        Alternator Regulator Test (New Style)
        Removal And Installation (743B)
        Removal And Installation (742B)
        Disassembly And Assembly (Old Style)
        Disassembly and Assembly (New Style)
        Stator Continuity Test
        Stator Ground Test
        Rotor Continuity Test
        Rotor Ground Test
        Rectifier Continuity (Diode) Test
        Rectifier Continuity (Diode) Test (New Style) 
    STARTER
        Checking The Starter
        Removal And Installation (743B)
        Removal And Installation (742B)
        Parts Identification
        Disassembly And Assembly
        Replacing The Brushes
        Cleaning and Inspection
        
ENGINE SERVICE
    ENGINE SERVICE (Kubota 743B)
        TROUBLESHOOTING
        FUEL FILTER
            Replacing The Fuel Filter
            Removing Air From The Fuel System
        GLOW PLUGS
            Checking
        ENGINE COMPRESSION
            Checking
        FUEL INJECTION PUMP
            Removal and Installation
            Timing The Injection Pump
            Checking The Injection Pump
        FUEL INJECTOR NOZZLES
            Removal And Installation
            Checking the Nozzles
        ENGINE
            Removal And Installation
        RADIATOR AND OIL COOLER
            Removal And Installation
        BLOWER HOUSING
            Removal And Installation
        ENGINE FLYWHEEL AND U–JOINT
            Removal And Installation
            Flywheel Ring Gear
        MUFFLER
            Removal And Installation
        CYLINDER HEAD
            Removal
            Disassembly
            Servicing
            Valve Guide Installation
            Assembly
            Installation
        ENGINE REPAIR
            Gearcase Removal
            Timing Gear, Camshaft And Oil Pump Removal
            Pistons And Crankshaft Removal
            Timing Gear And Camshaft Service
            Servicing The Connecting Rods And Pistons
            Crankshaft Service
            Cylinder Liner Service
            Lubrication System
            Oil Pump Service
            Water Pump Service
        ENGINE ASSEMBLY
            Crankshaft Installation
            Installing The Pistons
            Installing The Camshaft And Timing Gears
            Gearcase Installation
    ENGINE SERVICE (Mitsubishi 742B)
        TROUBLESHOOTING
        VALVE CLEARANCE
            Adjustment
        ENGINE COMPRESSION
            Checking
        IGNITION TIMING
            Procedure
        DISTRIBUTOR
            Removal And Installation
            Point Gap Adjustment
            Disassembly And Assembly
            Checking Centrifugal Advance
            Checking Vacuum Advance
        CARBURETOR
            Description
            Removal And Installation
            Disassembly And Assembly
            Adjustment
            Governor Adjustment
        FUEL PUMP
            Removal And Installation
            Inspection
            Check The Fuel Pump
            Fuel Filter
        ENGINE BELT SHIELD
            Removal And Installation
        ENGINE
            Removal And Installation
        OIL COOLER AND BLOWER HOUSING
            Removal And Installation
        RADIATOR
            Removal And Installation
        ENGINE MUFFLER
            Removal And Installation
        ENGINE FLYWHEEL AND U–JOINT
            Removal And Installation
            Flywheel Ring Gear
        ROCKER ARMS
            Removal
            Inspection
            Installation
        CAMSHAFT
            Removal And Installation
            Inspection
        CYLINDER HEAD
            Removal And Installation
            Inspection
        VALVES
            Removal
            Installation
            Reconditioning The Valve And Valve Seat
            Valve Seat Inserts
            Valve Guide
            Valve Spring
        PISTON AND CONNECTING ROD
            Removal
            Disassembly
            Inspection
            Assembly
            Installation
        PISTON PIN
            Assembly Of The Tool
            Removal Of The Piston Pin
            Installation Of The Piston Pin
        CYLINDER LINERS
            Checking
        CRANKSHAFT AND MAIN BEARINGS
            Description
            Removal
            Checking
            Checking Oil Clearance (Plastic Gauge)
            Installation
            Crankshaft End Play
            Rear Oil Seal
        TIMING BELT
            Adjustment
            Removal
            Inspection
            Assembly
        FRONT CASE AND OIL PAN
            Removal And Installation
        OIL PUMP
            Removal
            Inspection
            Installation
            Relief Valve
        FRONT CASE SEAL
            Removal And Installation
        WATER PUMP
            Removal And Installation
            Inspection
        THERMOSTAT
            Removal And Installation
            Inspection
            
SPECIFICATIONS
    SPECIFICATIONS (743B)
        SPECIFICATIONS
            OPERATIONS & PERFORMANCE
            ENGINE
            HYDRAULIC SYSTEM
            ELECTRICAL
            DRIVE SYSTEM
            CAPACITIES
            TIRES
        ENGINE SPECIFICATIONS
            Fuel Injection Nozzles
            Fuel Injection Pump
            Cylinder Head
            Valves
            Valve Springs
            Rocker Arms
            Camshaft
            Cylinders
            Piston Rings
            Pistons
            Crankshaft
            Oil Pump
            Engine Oil
        ENGINE BOLT TORQUES
    SPECIFICATIONS (742B)
        SPECIFICATIONS
            LOADER DIMENSIONS
            OPERATIONS & PERFORMANCE
            ENGINE
            HYDRAULIC SYSTEM
            ELECTRICAL
            DRIVE SYSTEM
            CAPACITIES
            TIRES
        ENGINE SPECIFICATIONS
            General
            Cylinder Head
            Cylinder Block
            Piston
            Piston Pin
            Connecting Rod
            Crankshaft
            Flywheel
            Camshaft
            Valve Train
            Valve Guide
            Valve Spring
            Rocker Arm And Shaft
            Oil Pump
            Fuel Pump
            Carburetor
            Water Pump
            Thermostat
            Starter
            Alternator
            Distributor
            Spark Plugs
            Engine Torque
    TECHNICAL DATA
        HYDRAULIC/HYDROSTATIC FLUID SPECIFICATIONS
        DECIMAL AND MILLIMETER EQUIVALENTS
        U.S. TO METRIC CONVERSION
        TORQUE FOR GENERAL METRIC BOLTS
        STANDARD TORQUE SPECIFICATIONS FOR BOLTS
        
SERVICE MANUAL REVISIONS
    742B, 743B–001
    742B, 743B–002
    742B, 743B–003
    742B, 743B–004
    
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