Bobcat X331 Excavator Repair Service Manual - 6722918

(S/N: 511920001 & Above) 
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This workshop repair service manual PDF download for the X-331 Bobcat Mini Hydraulic Excavator 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 Excavator X 331 
S/N: 511920001 & Above


TABLE OF CONTENTS :

SAFETY INSTRUCTIONS 
SERIAL NUMBER LOCATIONS 
DELIVERY REPORT 
HYDRAULIC EXCAVATOR IDENTIFICATION 
PREVENTIVE MAINTENANCE 
HYDRAULIC SECTION 
DRIVE SECTION 
UPPER WORKS & SWING SECTION 
MAIN FRAME & TRACKS 
ELECTRICAL SYSTEM 
ENGINE SERVICE 
TECHNICAL DATA 
SERVICE MANUAL REVISION


MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 6722918 (5–94)
Total Pages : 349


This service repair workshop 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
    HYDRAULIC EXCAVATOR SERIAL NUMBER
    ENGINE SERIAL NUMBER
    DELIVERY REPORT
    HYDRAULIC EXCAVATOR IDENTIFICATION
    MACHINE SIGNS TRANSLATIONS (DECALS)
    
PREVENTIVE MAINTENANCE
    SERVICE SCHEDULE
    ENGINE COVER
        Procedure
    AIR CLEANER SERVICE
        Replacing the Filter Element
    FUEL SYSTEM
        Fuel System Service
        Fuel Filters
        Removing Air From the Fuel System
    ENGINE LUBRICATION SYSTEM
        Checking The Engine Oil
        Engine Oil and Filter Replacement
    COOLING SYSTEM
        Coolant Level
        Coolant Replacement
    HYDRAULIC SYSTEM
        Checking and Adding Fluid
        Replacement of the Hydraulic Filter
        Hydraulic Reservoir
        Diagnostic Couplers
    USING A BOOSTER BATTERY (JUMP STARTING)
        Procedure
    LUBRICATION OF THE HYDRAULIC EXCAVATOR
        Procedure
    FINAL DRIVE CASE
        Checking Oil Level
        Draining Final Drive Case
        
HYDRAULIC SECTION
    HYDRAULIC SCHEMATICS
    HYDRAULIC SERVICE INFORMATION
        Description
    MAIN RELIEF VALVES
        Checking the Dual Pressure Relief Valves at Diagnostic Couplers
        Check the Single Pressure Relief Valve (3 Spool Valve)
        6 Spool Dual Pressure Relief Valve Adjustment Procedure
        High Pressure Adjustment Procedure (6 Spool Only)
        Low Pressure Adjustment Procedure (6 Spool Only)
        3 Spool Single Pressure Relief Valve Adjustment Procedure
    HYDRAULIC PUMP
        Checking the Hydraulic Pump
        Removal and Installation
        Parts Identification
        Disassembly
        Assembly
    HYDRAULIC CONTROL VALVE (6 Spool)
        Removal and Installation
        Parts Identification
    CONTROL VALVE (6 Spool)
        Disassembly and Assembly
            Disassembly
            Assembly
            Right Hand Travel
                Spool Wiper and Spool Seal Installation
            Boom, Bucket and Arm
                Relief Valves
            Auxiliary
                Spool Seal and Spool Wiper Installation
            Left Hand Travel
                Relief Valve
                Load Check Plug Assembly
                Spool Seal and Spool Wiper Installation
            End Cover–Supply and Relief Valve
            End Cover
    HYDRAULIC CONTROL VALVE (3 Spool)
        Removal and Installation
        PARTS IDENTIFICATION
    CONTROL VALVE (3 Spool)
        Disassembly and Assembly
            Disassembly
            Assembly
            House Swing Section
            Blade and Boom Swing Section
            Spool Seal and Spool Wiper Installation
            End Cover–Supply
            End Cover
            Pressure Build–up Valve
            Adjustment Procedure
    PRESSURE REDUCING VALVE WITH ACCUMULATOR
        Removal and Installation
        Parts Identification
    ACCUMULATOR
        Disassembly
        Assembly
        Setting the Safety Relief Valve
        Charging
    AUXILIARY SELECTOR VALVE
        Removal and Installation
        Disassembly And Assembly
    TWO SPEED VALVE
        Removal and Installation
        Parts Identification
    PORT BLOCK
        Removal and Installation
    OIL COOLER
        Removal And Installation
    HYDRAULIC RESERVOIR AND FUEL RESERVOIR
    HYDRAULIC FILTER ASSEMBLY
        Removal And Installation
    BOOM CYLINDER
        Removal And Installation
        Parts Identification
    ARM CYLINDER
        Removal And Installation
        Parts Identification
    BUCKET CYLINDER
        Removal And Installation
        Parts Identification
    BLADE CYLINDER
        Removal And Installation
        Parts Identification
    BOOM SWING CYLINDER
        Removal And Installation
        Parts Identification
    HYDRAULIC CYLINDER
        Disassembly
        Assembly
    JOYSTICK CONTROL CHANGE
        To change from I.S.O. to STANDARD control patterndo the following
        To change STANDARD to I.S.O. control pattern dothe following
        
DRIVE SECTION
    LEFT CONSOLE
        Lockout Valve Removal and Installation
        Cylinder Removal and Installation
        Removal and Installation
    LEFT JOYSTICK
        Removal and Installation
        Parts Identification
        Disassembly and Assembly
    RIGHT CONSOLE
        Removal and Installation
    RIGHT CONSOLE COVER
        Removal and Installation
    SPEED CONTROL LEVER
        Low Idle Adjustment
        High Idle Adjustment
        Removal and Installation
    BLADE CONTROL LEVER
    STEERING LEVERS AND PEDALS
        Removal and Installation
        
UPPER WORKS AND SWING SECTION
    ENGINE COVER
        Removal and Installation
    SEAT AND SEAT MOUNT
        Removal and Installation
    FLOORMAT AND FLOOR PLATE
        Removal and Installation
    REAR FLOOR PLATE
        Removal and Installation
    SWING MOTOR COVER
        Removal and Installation
    INSPECTION COVER
        Removal and Installation
    TOOL BOX
        Removal and Installation
    LEFT HAND SIDE COVER
        Removal and Installation
    RIGHT HAND SIDE COVER
        Removal and Installation
    RIGHT HAND CORNER POST
        Removal and Installation
    LEFT HAND CORNER POST
        Removal and Installation
    COUNTERWEIGHTS
        Removal and Installation
    FRONT ENGINE COVER
        Removal and Installation
    BUCKET
        Removal and Installation
    BUCKET TEETH
        Removal and Installation
    ARM
        Removal and Installation
    BOOM
        Removal and Installation
    BOOM SWING BRACKET
        Removal and Installation
        Hose Installation
        Swing Bracket Bushing Replacement
        Bushing Removal
        Bushing Installation
        Boom Pivot Bushing Replacement
        Bushing Removal
        Bushing Installation
    SWING MOTOR
        Removal and Installation
        Disassembly
        Assembly
    CROSS PORT RELIEF VALVE
        Disassembly
        Assembly
        Description
        Testing
    SWING GEAR BOX ASSEMBLY
        Parts Identification
        Disassembly
        Assembly
    UPPERSTRUCTURE AND SWING CIRCLE GEAR
        Removal and Installation
        Removal and Installation
        Swing Bearing Removal
        Swing Bearing Installation
        Alignment Pins (Threaded)
        Alignment Pins (Not Threaded)
    CENTER SWIVEL JOINT
        Removal And Installation (Through Bottom Access Cover)
        Parts Identification
    ROPS CANOPY
        Removal And Installation
    CAB
        Removal And Installation
        Door Removal And Installation
        Front Window Removal And Installation
        Front Lower Glass Removal And Installation
        Front Upper Plexiglass Removal And Installation
        Door Glass Removal And Installation
        Left Hand Side Glass Removal And Installation
        Rear Glass Removal And Installation
        Right Hand Side Glass Removal and Installation
        Right Hand Window Assembly Removal AndInstallation
    CAB/CANOPY REAR COVER
        Removal And Installation
        Installation
        
MAIN FRAME AND TRACKS
    BLADE
        Removal and Installation
    TRACK TENSION
        Adjustment
        Rubber Tracks
        Steel Tracks
    TRACK
        Removal and Installation
            For Rubber Track:
            For Steel Track:
    TRACK FRAME
        Disassembly and Assembly
    TRACK IDLER
        Parts Identification
        Disassembly
        Assembly
    TRACK ROLLER
        Parts Identification
        Disassembly
        Assembly
    TRAVEL MOTOR
        Removal and Installation
        Parts Identification
    TRAVEL MOTOR
        Disassembly
        Assembly
    TRACK
        Damage Identification and Causes
            Cutting of the steel cords
            Abrasion of embedded metals
            Separation of embedded metals due to external forces
            Separation of embedded metals due to corrosion
            Cuts on the lug side rubber
            Cracks of the lug side rubber due to fatigue
            Lug abrasion
            Cracks and cuts on the lug side rubber at the edges of the embedded metals
            Abrasion of the track roller side rubber surface
            Cuts on the edges of track roller side rubber
            
ELECTRICAL SYSTEM
    ELECTRICAL SYSTEM
    TROUBLESHOOTING
    ELECTRICAL SYSTEM
        Description
        Fuses
        Fuse Arrangement
        Electrical System Service
    BATTERY
        Checking the Battery
        Removal and Installation
    ALTERNATOR
        Belt Adjustment
        Removal and Installation
    STARTER
        Removal and Installation
        Disassembly and Assembly
        Cleaning and Inspection
    FUEL LEVEL SENDER
        Removal and Installation
        Checking
    INSTRUMENT PANEL
        Removal and Installation
    CAB ELECTRICAL (Cab Option)
    
ENGINE SERVICE
    TROUBLESHOOTING
    VALVE CLEARANCE
        Adjustment
    ENGINE COMPRESSION
        Checking
    ELECTRIC FUEL PUMP
        Removal and Installation
        Removing Air From the Fuel System
    FUEL FILTER
        Removal and Installation
    FUEL SHUT–OFF SOLENOID
        Adjustment
    FUEL SHUT–OFF SOLENOID
        Removal and Installation
        Timer Module
        Removal and Installation
    FUEL INJECTION PUMP
        Checking the Injection Pump
        Removal and Installation
        Timing the Injection Pump
    FUEL INJECTOR NOZZLES
        Removal and Installation
        Checking the Injector Nozzle
    GLOW PLUGS
        Removal and Installation
        Checking the Glow Plug
    FAN GUARD
        Removal and Installation
    RADIATOR
        Removal and Installation (S/N 20001–20067)
        Removal and Installation
        Removal and Installation (S/N 20068 & Above)
    AIR CLEANER
        Removal and Installation
    MUFFLER
        Removal and Installation
    ENGINE
        Removal and Installation
    ENGINE FLYWHEEL
        Removal and Installation
        Flywheel Ring Gear
    CYLINDER HEAD
        Removal
        Disassembly
        Servicing the Cylinder Head
        Assembly
        Installation
    ENGINE REPAIR
        Removing the Gearcase
        Removing the Timing Gear, Camshaft and Oil Pump
        Servicing the Timing Gear and Camshaft
        Servicing the Crankshaft
        Servicing the Cylinder Liners
        Lubrication System
        Oil Pump Service
        Water Pump Service
    ENGINE ASSEMBLY
        Installing the Crankshaft
        Installing the Pistons
        Installing the Camshaft and Timing Gears
        Installing the Gearcase
        
TECHNICAL DATA
    HYDRAULIC EXCAVATOR  SPECIFICATIONS
        Machine Dimensions
        Lifting Capacity
        OPERATIONS & PERFORMANCE
        ENGINE
        HYDRAULIC SYSTEM
        SWING SYSTEM
        CYLINDER CYCLE TIMES
        HYDRAULIC CYLINDERS
        DRIVE SYSTEM
        UNDERCARRIAGE
        BRAKES
        TRACK
        CAPACITIES
        DIGGING FORCE
    ENGINE SPECIFICATIONS
        Fuel Injection Nozzles
        Fuel Injection Pump
        Cylinder Head
        Valves
        Valve Springs
        Rocker Arms
        Camshaft
        Cylinder
        Piston Rings
        Pistons
        Crankshaft
        Oil Pump
        Engine Oil Specifications
        Engine Bolt Torque
        Re–Grinding The Crankshaft
    FUEL, COOLANT AND LUBRICANTS
    OIL SPECIFICATIONS
        Description
    BUCKET SPECIFICATIONS
    
SERVICE MANUAL REVISION
    331-1
    331-2
    331-3
    
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