Manual

Bobcat A770 All-Wheel Skid-Steer Loader Repair Service Manual – 6989480

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(S/N: A3P611001 & Above – S/N: A3P711001 & Above) 
– 
This workshop repair service manual PDF download for the A770 Bobcat All-Wheel 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 A770 
S/N: A3P611001 & Above
S/N: A3P711001 & Above

TABLE OF CONTENTS :

SAFETY & MAINTENANCE 
HYDRAULIC SYSTEM 
HYDROSTATIC SYSTEM 
DRIVE SYSTEM 
MAINFRAME 
ELECTRICAL SYSTEM & ANALYSIS 
ENGINE SERVICE 
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
SPECIFICATIONS 
ALPHABETICAL INDEX 

MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 6989480 (1-11)
Total Pages : 788

This A770 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
CONTENTS
FOREWORD
    FOREWORD
    SAFETY INSTRUCTIONS
    FIRE PREVENTION
        Maintenance
        Operation
        Electrical
        Hydraulic System
        Fueling
        Starting
        Spark Arrestor Exhaust System
        Welding And Grinding
        Fire Extinguishers
    SERIAL NUMBER LOCATIONS
        Loader Serial Number
        Engine Serial Number
    DELIVERY REPORT
    LOADER IDENTIFICATION
    
SAFETY & MAINTENANCE
    LIFTING AND BLOCKING THE LOADER
        Procedure
    LIFT ARM SUPPORT DEVICE
        Installing
        Removing
    OPERATOR CAB
        Description
        Raising
        Lowering
        Cab Door Sensor
        Special Applications Kit
        Special Applications Kit Inspection And Maintenance
        Forestry Door And Window Kit
        Forestry Door And Window Kit Inspection And Maintenance
    TRANSPORTING LOADER ON A TRAILER
        Loading And Unloading
        Fastening
    TOWING THE LOADER
        Procedure
    REMOTE START TOOL KIT-MEL1563
        Remote Start Tool – MEL1563
        Service Tool Harness Communicator – MEL1566
        Remote Start Procedure
    REMOTE START TOOL (SERVICE TOOL) KIT – 7003031
        Description
        Remote Start Tool (Service Tool) – 7003030
        Loader Service Tool Harness – 6689747
        Computer Service Tool Harness – 6689746
        Remote Start Procedure
    SERVICE SCHEDULE
        Chart
    AIR CLEANER SERVICE
        Replacing Filter Elements
    ENGINE COOLING SYSTEM
        Maintenance Platform
        Cleaning
        Checking Level
        Removing And Replacing Coolant
    FUEL SYSTEM
        Fuel Specifications
        Biodiesel Blend Fuel
        Filling The Fuel Tank
        Fuel Filter
        Removing Air From The Fuel System
    ENGINE LUBRICATION SYSTEM
        Checking And Adding Engine Oil
        Engine Oil Chart
        Removing And Replacing Oil And Filter
    HYDRAULIC / HYDROSTATIC SYSTEM
        Checking And Adding Fluid
        Hydraulic / Hydrostatic Fluid Chart
        Removing And Replacing Hydraulic Fluid
        Removing And Replacing Hydraulic / Hydrostatic Filter
        Removing And Replacing Steering Filter
        Removing And Replacing Hydraulic Charge Filter
        Breather Cap
    FINAL DRIVE TRANSMISSION (CHAINCASE)
        Checking And Adding Oil
        Removing And Replacing Oil
    BOB-TACH (HAND LEVER)
        Inspection And Maintenance
    BOB-TACH (POWER)
        Inspection And Maintenance
    LUBRICATING THE LOADER
        Lubrication Locations
    TIRE MAINTENANCE
        Wheel Nuts
        Rotating
        Mounting
    SPARK ARRESTER MUFFLER
        Cleaning Procedure
    PIVOT PINS
        Inspection And Maintenance
    LOADER STORAGE AND RETURN TO SERVICE
        Storage
        Return To Service
    STOPPING THE ENGINE AND LEAVING THE LOADER
        Procedure
    EMERGENCY EXIT
        External Access
        Rear Window
        Front Door
    SEAT BELT
        Inspection And Maintenance
        
HYDRAULIC SYSTEM
    HYDRAULIC / HYDROSTATIC SCHEMATICS
    HYDRAULIC SYSTEM INFORMATION
        Glossary Of Hydraulic / Hydrostatic Symbols
        Troubleshooting
    CYLINDER (LIFT)
        Testing
        Removal And Installation
        Parts Identification
        Disassembly
        Assembly
    CYLINDER (TILT)
        Testing
        Removal And Installation
        Base End Pivot Pin Removal And Installation
        Parts Identification
        Disassembly
        Assembly
    CYLINDER (BOB-TACH)
        Testing
        Removal And Installation
        Parts Identification
        Disassembly
        Assembly
    CYLINDER (STEERING)
        Testing
        Removal And Installation (Front)
        Removal And Installation (Rear)
        Parts Identification
        Disassembly
        Assembly
    MAIN RELIEF VALVE
        Description
        Testing
        Adjusting
        Removal And Installation
    HYDRAULIC CONTROL VALVE
        Description
        Removal And Installation
        Actuator Removal And Installation (In Loader)
        Actuator Removal And Installation (Out Of Loader)
        Identification Chart
        Mount Bracket Removal And Installation
        Lift Load Check Valve Removal And Installation
        Load Check Valve Removal And Installation (Tilt And Auxiliary)
        Anti-Cavitation Valve Removal And Installation (Lift, Rod End)
        Port Relief / Anti-Cavitation Valve Removal And Installation (Lift, Base End)
        Port Relief / Anti-Cavitation Valve Removal And Installation (Tilt, Base End)
        Port Relief / Anti-Cavitation Valve Removal And Installation (Tilt, Rod End)
        Port Relief Valve Removal And Installation (Auxiliary)
        Plug Removal And Installation
        End Cap Block Removal And Installation
        Lift Spool Removal And Installation
        Tilt Spool Removal And Installation
        Auxiliary Spool Removal And Installation
        Auxiliary Solenoid Removal And Installation
        Solenoid Removal And Installation
        Lock Valve Removal And Installation
        Lift Arm Bypass Orifice Inspection
        Main Relief Valve Removal And Installation
        Check Valve Removal And Installation
    LIFT ARM BYPASS CONTROL VALVE
        Description
        Testing
        Removal And Installation
        Bracket Removal And Installation
        Disassembly And Assembly
    HYDRAULIC PUMP
        Description
        Pump Test At Quick Couplers
        Direct Pump Test (Standard Section)
        Direct Pump Test (Charge Section)
        Direct Pump Test (Steering Section)
        Removal And Installation
        Hydraulic Pump Startup
        Parts Identification
        Disassembly And Assembly
    HYDRAULIC PUMP (HIGH FLOW)
        Description
        Pump Test At Quick Couplers
        Direct Pump Test (Standard Section)
        Direct Pump Test (Charge Section)
        Direct Pump Test (High Flow Section)
        High Flow Relief Valve Adjustment
        High Flow Relief Valve Removal And Installation
        Direct Pump Test (Steering Section)
        Solenoid Removal And Installation
        Removal And Installation
        Hydraulic Pump Startup
        Parts Identification
        Disassembly And Assembly
    HYDRAULIC / HYDROSTATIC FILTERS
        Description
        Housing Removal And Installation
    HYDRAULIC FLUID RESERVOIR
        Description
        Removal And Installation
        Hydraulic Fluid Screen
    OIL COOLER
        Description
        Removal And Installation
    BUCKET POSITION VALVE
        Description
        Solenoid Removal And Installation
        Solenoid Testing
        Removal And Installation
        Disassembly And Assembly
    REAR AUXILIARY DIVERTER VALVE
        Description
        Solenoid Testing
        Removal And Installation
        Disassembly And Assembly
    BOB-TACH (POWER) BLOCK
        Description
        Removal And Installation
        Disassembly And Assembly
    FRONT AUXILIARY HYDRAULIC COUPLER BLOCK
        Description
        Removal And Installation
        Disassembly And Assembly
        
HYDROSTATIC SYSTEM
    HYDROSTATIC SYSTEM INFORMATION
        Troubleshooting
        Description
    HYDROSTATIC MOTOR (TWO-SPEED)
        Description
        Removal And Installation
        Parts Identification
        Disassembly
        Assembly
    HYDROSTATIC MOTOR CARRIER (SJC)
        Description
        Removal And Installation
        Parts Identification
        Disassembly
        Assembly
    CHARGE PRESSURE
        Description
        Testing
        Sender Removal And Installation
        Adjusting
    HYDROSTATIC PUMP (SJC)
        Description
        Hydraulic Controller Removal And Installation
        Removal And Installation
        Hydrostatic Pump Start Up
        Parts Identification
        High Pressure Relief And Bypass Valve
        Charge Relief Valve
        Disassembly
        Inspection
        Assembly
        Mechanical Neutral Adjustment
        Hydraulic Controller Neutral Adjustment
    DRIVE BELT
        Belt Adjustment
        Belt Replacement
        Stop Adjustment
        Tensioner Pulley Removal And Installation
        Tensioner Pulley Disassembly And Assembly
    TWO-SPEED / BRAKE VALVE
        Description
        Valve Block Removal And Installation
        Valve Block Disassembly And Assembly
    DRAIN MANIFOLD
        Description
        Drain Manifold Removal And Installation
        
DRIVE SYSTEM
    BRAKE
        Description
    STEERING BLOCK
        Description
        Identification
        Removal And Installation
        Disassembly And Assembly
    DRIVE COMPONENTS
        Description
        Axle Seal Removal And Installation
        Axle, Sprocket And Bearings Removal And Installation
        Chain Removal And Installation
    CHAINCASE
        Description
        Front Cover Removal And Installation
        Center Cover Removal And Installation
        Rear Cover Removal And Installation
    HUB
        Description
        Removal
        Installation
        Disassembly
        Assembly
        
MAINFRAME
    SEAT BAR
        Description
        Removal And Installation
        Disassembly And Assembly
        Compression Spring Disassembly And Assembly
    OPERATOR CAB
        Gas Spring Removal And Installation
        Gas Spring Bracket Disassembly And Assembly
        Removal And Installation
    OPERATOR SEAT (SUSPENSION)
        Removal And Installation
        Slide Rail Removal And Installation
        Seat Belt Removal And Installation
        Lower Cushion Removal
        Lower Cushion Installation
        Back Cushion Removal And Installation
        Shock Removal And Installation
        3-Point Seat Belt Removal And Installation
    BOB-TACH (HAND LEVER)
        Description
        Removal And Installation
        Lever And Wedge Disassembly And Assembly
        Pivot Pin Bushing And Seal Removal And Installation
    BOB-TACH (POWER)
        Description
        Removal And Installation
        Lever And Wedge Disassembly And Assembly
        Pivot Pin Bushing And Seal Removal And Installation
    LIFT ARMS
        Stabilizer Bar Removal And Installation
        Link Removal And Installation
        Removal And Installation
    REAR GRILLE
        Removing
        Installing
    REAR DOOR (TAILGATE)
        Removal And Installation
        Striker Removal And Installation
        Striker Adjusting
        Latch Removal And Installation
    FUEL TANK
        Removal And Installation
        Fuel Level Sender Removal And Installation
        Fuel Fill Screen Removal And Installation
    FLOOR PAN
        Floor Pan Removal And Installation
    CONTROL PANEL
        Description
        Removal And Installation
    JOYSTICK CONTROL
        Description
        Joystick Testing
        Joystick Removal And Installation
    ACCESS PANEL (INSIDE)
        Removal And Installation (Left)
        Removal And Installation (Right)
    ACCESS PANEL (INSIDE) (SJC)
        Removal And Installation (Left)
        Removal And Installation (Right)
    WINDOW (REAR)
        Removal And Installation
        Disassembly And Assembly
    WINDOW (TOP)
        Removal And Installation
    WINDOW (SIDE)
        Removal And Installation
    CAB DOOR
        Description
        Removal And Installation
        Disassembly And Assembly
        Aligning
        Adjusting
        Checking Operation
        
ELECTRICAL SYSTEM & ANALYSIS
    ELECTRICAL SCHEMATICS
    ELECTRICAL SYSTEM INFORMATION
        Glossary Of Electrical Symbols
        Cab Harness Connectors
        Mainframe Harness Connectors
        Description
        Troubleshooting
        Fuse And Relay Location / Identification
        Solenoid Testing
    BATTERY
        Removal And Installation
        Servicing
        Using A Booster Battery (Jump Starting)
    ALTERNATOR
        Belt Adjustment
        Belt Replacement
        Charging System Inspection
        Alternator Voltage Testing
        Low Voltage Testing
        High Voltage Testing
        Removal And Installation
        Parts Identification
    STARTER
        Testing
        Removal And Installation
        Parts Identification
    INSTRUMENT PANELS
        Left Panel
        Display Screen
        Right Panel (Standard Key Panel)
        Right Panel (Keyless Start Panel)
        Right Panel (Deluxe Instrumentation Panel)
        Left Switch Panel
        Right Switch Panel
        Left Side Lower Panel
        Right Side Lower Panel
        Left Panel Removal And Installation
        Right Panel Removal And Installation
        Key Switch Disassembly And Assembly
        Alarm Disassembly And Assembly
        Left Switch Panel Removal And Installation
        Right Switch Panel Removal And Installation
    LIGHTS
        Front Removal And Installation
        Rear Removal And Installation
        Cab Light Removal And Installation
    BOBCAT CONTROLLERS (GATEWAY AND AUXILIARY)
        Description
        Connector Identification
        Removal And Installation
    BOBCAT CONTROLLER (ACS)
        Description
        Connector And Wire Identification
        Removal And Installation
    BOBCAT CONTROLLER (DRIVE PLUS)
        Description
        Connector Identification
        Removal And Installation
    SPEED SENSORS
        Description
        Testing
        Removal And Installation
    DIAGNOSTIC SERVICE CODES
        Viewing Service Codes
        Service Codes List
    BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)
        Description
        Inspecting The BICS™ (Engine STOPPED – Key ON)
        Inspecting Deactivation Of The Auxiliary Hydraulics System (Engine STOPPED – Key ON)
        Inspecting The Seat Bar Sensor (Engine RUNNING)
        Inspecting The Traction Lock (Engine RUNNING)
        Inspecting The Lift Arm Bypass Control
        Inspecting Deactivation Of Lift And Tilt Functions (SJC)
        Troubleshooting
    SEAT BAR SENSOR
        Description
        Troubleshooting
        Testing
        Removal And Installation
        Bobcat Interlock Control System (BICS™) Circuit Test
    TRACTION LOCK
        Description
        Troubleshooting
        Inspecting
    ELECTRICAL / HYDRAULIC CONTROLS (SJC)
        Identification Chart
        Description
        Identification Chart ACD Group 0
        Identification Chart ACD Group 1
        Identification Chart ACD Group 2
        Identification Chart ACD Group 3
    SERVICE PC (LAPTOP COMPUTER)
        Connecting Remote Start Tool
        Connecting Remote Start Tool (Service Tool)
    CALIBRATION
        Description
        Actuator Testing
        Lift And Tilt Calibration
        Hydrostatic Pump Calibration
    STEERING DRIFT COMPENSATION
        Description
        Operation
    FLYWHEEL RPM SENSOR
        Description
        Removal
        Installation
    CONTROL PANEL SETUP
        Right Panel Setup (Deluxe Instrumentation Panel)
    PASSWORD SETUP (DELUXE INSTRUMENTATION PANEL)
        Password Description
        Changing The Owner Password
        Changing The User Passwords
        Password Lockout Feature
    PASSWORD SETUP (KEYLESS START PANEL)
        Password Description
        Changing The Owner Password
        Password Lockout Feature
    MAINTENANCE CLOCK
        Description
        Setup
        Reset
    BACK-UP ALARM SYSTEM
        Description
        Inspecting
        Troubleshooting
        Alarm Removal And Installation
    FRONT HORN
        Description
        Inspecting
        Front Horn Removal And Installation
        Troubleshooting
        
ENGINE SERVICE
    ENGINE INFORMATION
        Description
        Specifications
        Torque Values
        Troubleshooting
        Engine Removal And Installation
        Engine Mount Replacement
        Compression – Checking
    ENGINE SPEED CONTROL (HAND)
        Removal And Installation
        Disassembly And Assembly
        Cable Removal And Installation
    ENGINE SPEED CONTROL (FOOT)
        Removal And Installation
        Disassembly And Assembly
    MUFFLER
        Removal And Installation
    AIR CLEANER
        Housing Removal And Installation
    ENGINE COOLING SYSTEM
        Radiator Removal And Installation
        Hydraulic Fan Description
        Fan Duct Removal And Installation
        Hydraulic Fan Motor Assembly Removal And Installation
        Hydraulic Fan Motor Removal And Installation
        Hydraulic Fan Motor Disassembly And Assembly
        Blower Housing Removal And Installation
        Water Pump Removal And Installation
        Water Pump Disassembly And Assembly
        Thermostat Housing Removal And Installation
        Thermostat – Checking
    LUBRICATION SYSTEM
        Oil Pan Removal And Installation
        Oil Pump Removal And Installation
        Oil Pump Inspection
        Oil Filter Cooler Removal And Installation
        Engine Oil Pressure – Testing
    FUEL SYSTEM
        Fuel Shutoff Solenoid – Checking
        Fuel Shutoff Solenoid Removal And Installation
        Fuel Injection Pump Assembly Removal
        Fuel Injection Pump Assembly Installation
        Governor Housing Disassembly And Assembly
        Governor Disassembly And Assembly
        Fuel Camshaft Removal And Installation
        Fuel Injection Pump Removal
        Fuel Injection Pump Installation
        Injection Pump – Timing
        Fuel Injector Removal And Installation
        Fuel Injector Nozzle Pressure – Checking
        Nozzle Spraying Condition
        Valve Seat Tightness
    CYLINDER HEAD
        Intake Air Heater – Testing
        Intake Air Heater Removal And Installation
        Valve Clearance Adjustment
        Valve Timing – Checking
        Cylinder Head Removal And Installation
        Cylinder Head Disassembly And Assembly
        Cylinder Head – Servicing
        Cylinder Head Top Clearance
        Valve Guide – Checking
        Reconditioning The Valve And Valve Seat
        Valve Spring
        Valve Tappets
        Rocker Arm And Shaft – Checking
        Push Rod Alignment – Checking
    CRANKSHAFT AND PISTONS
        Piston And Connecting Rod Removal And Installation
        Piston And Connecting Rod – Servicing
        Cylinder Bore – Checking
        Connecting Rod Alignment
        Crankshaft Gear Removal And Installation
        Crankshaft And Bearings Removal
        Crankshaft And Bearings Installation
        Crankshaft And Bearings – Servicing
    CAMSHAFT AND TIMING GEArS
        Timing Gearcase Cover Removal And Installation
        Timing Gears Backlash – Checking
        Idler Gear And Camshaft Removal And Installation
        Camshaft – Servicing
        Idler Gear And Shaft – Servicing
    TURBOCHARGER
        Description
        Testing
        Removal And Installation
    FLYWHEEL AND HOUSING
        Flywheel Removal And Installation
        Ring Gear Removal And Installation
        Housing Removal And Installation
    EXHAUST GAS RECIRCULATION (EGR) SYSTEM
        Description
        Testing
        Removal And Installation
        
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
    AIR CONDITIONING SYSTEM FLOW
        Description
        Chart
        Components
        Safety Equipment
    REGULAR MAINTENANCE
        Filters
        Belt Adjustment
        Belt Replacement
        Condenser
        Air Conditioning Lubrication
        Air Conditioning Service Chart
        Evaporator / Heater Coil
    TROUBLESHOOTING
        Blower Motor Does Not Operate
        Blower Motor Operates Normally, But Air Flow Is Insufficient
        Insufficient Cooling Although Air Flow And Compressor Operation Are Normal
        The Compressor Does Not Operate At All, Or Operates Improperly
        Gauge Pressure Related Troubleshooting
        Troubleshooting Tree
        Temperature / Pressure Chart
        Poor A/C Performance
        HVAC Repair And Leaks
        Electrical System
        Engine Coolant Bypassing The Heater Valve
        Heater Valve Not Opening Or Closing
    SYSTEM CHARGING AND RECLAMATION
        Refrigerant Identification
        Reclamation And Charging With Recovery / Charging Unit
    COMPRESSOR
        Removal And Installation
        Oil
        Oil Check
    CONDENSER
        Removal And Installation
    RECEIVER / DRIER
        Receiver / Drier Removal And Installation
        Pressure Relief Valve Removal And Installation
        Pressure Switch Removal And Installation
        Schrader® Valve Removal And Installation
    EVAPORATOR / HEATER UNIT
        Removal And Installation
    THERMOSTAT
        Description
        Removal And Installation
    EXPANSION VALVE
        Removal And Installation
    EVAPORATOR COIL
        Removal And Installation
    HEATER COIL
        Removal And Installation
    BLOWER FAN
        Removal And Installation
        Disassembly And Assembly
    HEATER VALVE
        Removal And Installation
        
SPECIFICATIONS
    (A770) LOADER SPECIFICATIONS
        Machine Dimensions
        Performance
        Engine
        Drive System
        Controls
        Hydraulic System
        Electrical System
        Capacities
        Tires
    TORQUE SPECIFICATIONS FOR BOLTS
        Torque For General SAE Bolts
        Torque For General Metric Bolts
    HYDRAULIC CONNECTION SPECIFICATIONS
        Straight Thread O-ring Fitting
        Flare Fitting
        Tubelines And Hoses
    HYDRAULIC / HYDROSTATIC FLUID SPECIFICATIONS
        Specifications
    CONVERSIONS
        Decimal And Millimeter Equivalent Chart
        U.S. To Metric Conversion Chart
        
ALPHABETICAL INDEX

 

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Bobcat A770 All-Wheel Skid-Steer Loader Repair Service Manual – 6989480.pdf

Source : Sitelux.com

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