A 763 is a bread-and-butter skid-steer, same idea as a Deere 250 or Cat 246 from that era. This service manual is what you grab when you're past warranty and actually wrenching on the machine, not just greasing and fueling it. Shop guys, field techs, and owner-operators use it when they need the correct teardown order, test ports, and reassembly info for the hydrostat, hydraulics, and engine systems.
What this manual helps you do
- Diagnose hydraulic and hydrostatic issues, then check pressures at the right ports with the correct test setup
- Trace and troubleshoot electrical faults using wiring diagrams and step-by-step checks
- Follow teardown and reassembly procedures for pumps, drive motors, cylinders, and major mechanical components
- Replace and adjust control linkages, drive chains, parking brake parts, and Bob-Tach pieces to factory spec
- Set and verify adjustments on the engine, drive, and loader systems after repairs so the machine runs straight and lifts right
Who this is for
This is for anyone working on a Bobcat 763 loader in the 512620001-512699999 serial range: small contractors, rental fleets, farm shops, or independent mechanics like me. If you only want how to operate the machine or basic maintenance intervals, you need the operator's handbook instead, not this manual.
FAQ
Q: Is this a searchable PDF, and are the wiring diagrams readable?
A: These manuals are usually supplied as searchable PDFs, and the wiring diagrams are laid out so you can zoom in and follow circuits clearly on-screen or printed.
Q: My 763 has a different serial number. Will this still match my machine?
A: No, this one is written for 763 loaders in the 512620001-512699999 range. For a different serial range, you want the matching manual for that run.
Q: I'm just changing fluids and filters. Is this the right document?
A: For simple service, the operator's handbook is easier. This manual is better when you're diagnosing faults or tearing components apart.
Bottom line: If your 763 falls in that serial range and you're doing real repair work, this is the right Bobcat service manual. If the serial doesn't match, skip it and get the correct one.
📘 Show Index
Table of Contents:
- MAINTENANCE SAFETY
- ALPHABETICAL INDEX
- CONTENTS
- FOREWORD
- SAFETY INSTRUCTIONS
- SERIAL NUMBER LOCATION
- Loader Serial Number
- Engine Serial Number
- DELIVERY REPORT
- BOBCAT LOADER IDENTIFICATION
- SAFETY AND MAINTENANCE
- LIFTING AND BLOCKING THE LOADER
- LIFT ARM SUPPORT DEVICE
- Installing Lift Arm Support Device
- Removing The Lift Arm Support Device
- OPERATOR CAB
- Description
- Raising The Operator Cab
- Lowering The Operator Cab
- Emergency Exit
- TRANSPORTING THE BOBCAT LOADER
- TOWING THE LOADER
- REMOTE START
- SERVICE SCHEDULE
- AIR CLEANER SERVICE
- Checking
- Replacing Filter Element(s)
- ENGINE COOLING SYSTEM
- Cleaning The Cooling System
- Checking The Coolant Level
- Replacing The Coolant
- FUEL SYSTEM
- Fuel Specifications
- Filling the Fuel Tank
- Fuel Filter
- Removing Air From The Fuel System
- Checking Engine Oil
- Oil Chart
- Replacing Oil And Filter
- HYDRAULIC/HYDROSTATIC SYSTEM
- Checking And Adding Fluid
- Replacing Hydraulic/Hydrostatic Filter
- Replacing Hydrostatic Motor Case Drain Filter(s)
- Replacing Hydraulic Fluid
- Breather Cap
- FINAL DRIVE TRANSMISSION (CHAINCASE)
- Checking And Adding Oil
- Removing The Oil
- FAN GEARBOX
- BOB-TACH
- Inspection And Maintenance
- LUBRICATION OF THE BOBCAT LOADER
- TIRE MAINTENANCE
- Wheel Nuts
- Rotating
- Mounting
- SPARK ARRESTOR MUFFLER
- HYDRAULIC SYSTEM
- HYDRAULIC/HYDROSTATIC SCHEMATICS
- HYDRAULIC SYSTEM INFORMATION
- Tighten Procedures
- Troubleshooting Chart
- CYLINDER (LIFT)
- Checking
- Removal And Installation
- Identification
- Disassembly
- Assembly
- CYLINDER (TILT)
- Checking
- Removal And Installation
- Rod End Pivot Pin Bushing And Seal Replacement
- Identification
- Disassembly
- Assembly
- CYLINDER (POWER BOB-TACH)
- Checking
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- MAIN RELIEF VALVE
- Checking
- Adjustment
- Removal And Installation
- HYDRAULIC CONTROL VALVE (FOOT CONTROL)
- Removal And Installation (S/N 512262999 & Below)
- Removal And Installation (S/N 512263000 & Above)
- BICS™ Valve, Removal And Installation
- BICS™ Valve, Lift Arm By-Pass Orifice Removal And Installation
- BICS™ Valve, Check Valve Removal And Installation
- BICS™ Valve, Lock Valve Removal And Installation
- BICS™ Valve, Solenoid Removal And Installation
- BICS™ Valve, Solenoid Testing
- Identification Chart
- Load Check Valve
- Main Relief Valve
- Port Relief Valve
- Anti-Cavitation Valve/Port Relief Valve
- Anti-Cavitation Valve
- Rubber Boot
- Lift And Tilt Lock Block Removal And Installation
- Lift Spool And Detent
- Tilt Spool Removal And Installation
- Auxiliary Spool Removal And Installation
- Auxiliary Electric Solenoid
- Port-Auxiliary Section
- Cleaning And Inspection
- HYDRAULIC CONTROL VALVE (ADVANCED CONTROL SYSTEM) (ACS)
- Description
- Removal And Installation (S/N 512262999 & Below)
- Removal And Installation (S/N 512263000 & Above)
- Actuator Removal And Installation
- BICS™ Valve, Removal And Installation
- BICS™ Valve, Lift Arm By-Pass Orifice Removal and Installation
- BICS™ Valve, Check Valve Removal and Installation
- BICS™ Valve, Lock Valve Removal and Installation
- BICS™ Valve, Solenoid Removal and Installation
- BICS™ Valve, Solenoid Testing
- Identification Chart (AHC)
- Identification Chart (ACS)
- Lift Base End Restrictor
- Load Check Valve
- Main Relief Valve
- Port Relief Valve
- Anti-Cavitation Valve/Port Relief Valve
- Anti-Cavitation Valve
- Lift Spool Removal And Installation
- Tilt Spool Removal And Installation
- Lift And Tilt Spool Disassembly And Assembly
- Auxiliary Spool Removal And Installation
- Auxiliary Electric Solenoid
- Port-Auxiliary Section
- Cleaning And Inspection
- LIFT ARM BY-PASS CONTROL VALVE
- Inspecting
- Removal And Installation
- Disassembly And Assembly
- HYDRAULIC PUMP (ALUMINUM)
- Checking The Output Of The Hydraulic Pump
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- Inspection
- HYDRAULIC PUMP (ALUMINUM HI-FLOW)
- Removal And Installation
- Parts Identification
- Disassembly And Assembly
- HYDRAULIC PUMP (CAST IRON)
- Check The Output Of The Hydraulic Pump Without Power Bob-Tach
- Check The Output Of The Hydraulic Pump With Power Bob-Tach.
- Removal And Installation
- Identification
- Disassembly And Assembly
- HYDRAULIC/HYDROSTATIC FILTER
- Housing Removal And Installation
- HYDRAULIC FLUID RESERVOIR
- Fluid Removal
- Removal And Installation (S/N 512264899 & Below)
- Removal And Installation (S/N 512264900 & Above)
- BUCKET POSITION VALVE
- Solenoid Removal And Installation
- Solenoid Testing
- Removal And Installation
- Disassembly And Assembly
- SELECT VALVE
- Checking The High Flow Pump Relief Valve
- Removal And Installation
- Disassembly And Assembly
- Solenoid Testing
- REAR AUXILIARY DIVERTER VALVE (SINGLE SHUTTLE)
- Removal And Installation
- Disassembly
- Inspection
- Solenoid Testing
- Assembly
- REAR AUXILIARY DIVERTER VALVE (DUAL SHUTTLE)
- Removal And Installation
- Disassembly And Assembly
- Solenoid Testing
- Inspection
- POWER BOB-TACH BLOCK (S/N 512267827 & BELOW)
- Removal And Installation
- Disassembly And Assembly
- POWER BOB-TACH BLOCK (S/N 512267828 & ABOVE)
- Removal And Installation
- Disassembly And Assembly
- FRONT AUXILIARY PRESSURE RELIEF BLOCK
- Removal And Installation
- Disassembly And Assembly
- Solenoid Testing
- Solenoid Inspection
- FRONT AUXILIARY HYDRAULIC COUPLER BLOCK
- Removal and Installation
- Disassembly And Assembly
- HYDROSTATIC SYSTEM
- HYDROSTATIC SYSTEM INFORMATION
- Troubleshooting Chart
- Replenishing Valve Function
- HYDROSTATIC MOTOR
- Removal And Installation
- Parts Identification
- Disassembly
- Assembly
- Prior to assembly:
- Carrier Shaft Seal Replacement
- Carrier Removal And Installation
- Carrier Parts Identification
- Carrier Disassembly
- Carrier Assembly
- CHARGE PRESSURE
- Sender Removal And Installation
- Checking Charge Pressure
- Adjusting
- HYDROSTATIC PUMP
- Replenishing/High Pressure Relief Valve
- Removal And Installation
- Parts Identification (Right Half)
- Parts Identification (Left Half)
- Hydraulic Pump Removal And Installation
- Pump Separation
- Disassembly
- Assembly
- DRIVE BELT
- Shield Removal And Installation
- Adjusting
- Drive Belt Replacement
- Tensioner Pulley Removal And Installation
- Tensioner Pulley Parts Identification
- Tensioner Pulley Disassembly
- Tensioner Pulley Assembly
- OIL COOLER
- DRIVE SYSTEM
- DRIVE COMPONENTS
- Axle Seal Removal And Installation
- Axle Sprocket And Bearings Removal And Installation
- Chain Removal And Installation
- CHAINCASE
- Checking And Adding Oil
- Removing The Oil
- Front Cover Removal And Installation
- Center Cover Removal And Installation
- Rear Cover Removal And Installation
- BRAKE
- Pedal Removal And Installation
- Pedal Disassembly And Assembly
- Disk Removal And Installation
- Switch Operated Parking Brake
- MAIN FRAME
- SEAT BAR
- Removal And Installation
- Assembling Components
- Compression Spring Disassembly And Assembly
- OPERATOR CAB
- Gas Cylinder Removal And Installation
- Gas Cylinder Disassembly
- Removal And Installation
- OPERATOR SEAT
- Removal And Installation
- Seat Belt Removal And Installation
- OPERATOR SEAT (SUSPENSION)
- Removal And Installation
- Slide Rail Removal And Installation
- Cushion Removal And Installation
- Back Removal And Installation
- Shock Removal And Installation
- BOB-TACH
- Removal And Installation
- Bob-Tach Lever And Wedge
- Bob-Tach Stops
- LIFT ARM
- REAR GRILL
- Gas Cylinder Removal And Installation
- Removal And Installation
- REAR DOOR
- Removal And Installation
- Door Latch And Catch Adjustment (S/N 512261535 & Below)
- Door Latch Removal And Installation (S/N 512261535 & Below)
- Striker Removal and Installation (S/N 512261536 & Above)
- Striker Disassembly and Assembly (S/N 512261536 & Above)
- Adjusting The Striker (S/N 512261536 & Above)
- Latch Removal and Installation (S/N 512261536 & Above)
- FUEL TANK
- Removal And Installation
- Fuel Level Sender
- CONTROL PEDALS
- Removal And Installation
- Pedal Adjustment
- Crossbar Linkage Removal And Installation
- Lift Foot Pedal Linkage Removal And Installation
- Tilt Foot Pedal Linkage Removal And Installation
- CONTROL PEDALS (ACS)
- Foot Sensor Removal And Installation
- Foot Pedal Removal And Installation
- Foot Pedal Linkage Disassembly And Assembly
- CONTROL PANEL
- Removal and Installation
- Shock Removal And Installation
- Shaft Removal And Installation
- Shaft Disassembly And Assembly
- Linkage Removal And Installation
- Linkage Adjustment
- Linkage Neutral Adjustment
- CONTROL HANDLE
- Control Lever Removal And Installation
- Control Lever Boot
- CONTROL HANDLE (ADVANCED HAND CONTROL) (AHC)
- Components Identification
- Control Handle Unit Removal And Installation
- Control Handle Removal And Installation
- Control Handle Disassembly And Assembly
- Control Lever Removal And Installation
- Control Lever Boot
- CONTROL HANDLE (ADVANCED HAND CONTROL) (AHC) W/PUSH BUTTON FLOAT
- Components Identification
- Handle Sensor Removal And Installation
- Control Handle Removal And Installation
- Control Handle Disassembly And Assembly
- Control Lever Removal And Installation
- Control Lever Boot
- CONTROL HANDLE (ADVANCED CONTROL SYSTEM) (ACS) ADVANCED HAND CONTROL
- Components Identification
- Handle Sensor Removal And Installation
- Control Handle Removal and Installation
- Control Handle Disassembly and Assembly
- Control Lever Removal and Installation
- Control Lever Boot
- CONTROL HANDLE (ADVANCED CONTROL SYSTEM) (ACS) SELECTABLE HAND/FOOT CONTROL
- Components Identification
- Handle Sensor Removal And Installation
- Control Handle Removal And Installation
- Control Handle Disassembly And Assembly
- Control Lever Removal And Installation
- Control Lever Boot
- ELECTRICAL SYSTEM & ANALYSIS
- ELECTRICAL SCHEMATICS
- ELECTRICAL SYSTEM INFORMATION
- 763 Wiring Schematics
- Troubleshooting Chart
- Description
- Fuse Location
- Relay Switch Location
- Solenoid Test
- BATTERY
- Removal And Installation
- Servicing
- Using A Booster Battery (Jump Starting)
- ALTERNATOR (55 AMP)
- Adjusting The Alternator Belt
- 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
- ALTERNATOR (90 AMP)
- Adjusting The Alternator Belt
- Alternator Identification
- Charging System Check
- Alternator Voltage Test
- Low Voltage Test
- High Voltage Test
- Removal And Installation
- Rectifier Continuity (Diode) Test
- Alternator Regulator Test
- Disassembly
- Stator Continuity Test
- Stator Ground Test
- Rotor Continuity Test
- Rotor Ground Test
- Assembly
- STARTER (NIPPONDENSO)
- Checking
- Removal And Installation
- Parts Identification
- Disassembly
- Inspection And Repair
- No Load Test
- Assembly
- STARTER (VALEO)
- Checking
- Removal And Installation
- Parts Identification
- Disassembly and Assembly
- Inspection And Repair
- No Load Test
- INSTRUMENT PANEL
- Left Panel
- Right Panel (Standard) (With Key Switch)
- Right Panel – (Deluxe) (With Keyless Start)
- Right Panel Setup Display Options (Deluxe)
- Passwords
- Option And Field Accessory Panels
- Removal And Installation
- Front Accessory Panel Removal And Installation
- LIGHTS
- Front Removal And Installation
- Rear Removal And Installation
- BOBCAT CONTROLLER
- Identification Chart (S/N 512263854 & Below)
- Identification Chart (S/N 512263855 & Above)
- Removal And Installation
- DIAGNOSTICS
- BICS™ SYSTEM
- Inspecting The BICS™ Controller (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 By-Pass Control
- Additional Inspection For Loaders With Advanced Hand Controls (AHC)
- Troubleshooting Chart
- Troubleshooting Guide.
- SEAT BAR SENSOR
- Troubleshooting Chart
- Test
- Removal And Installation
- BICS™ Circuit Test
- TRACTION LOCK
- Troubleshooting Chart
- Inspecting
- Solenoid Removal And Installation
- Guide Removal
- Guide Installation
- ADVANCE HAND CONTROL (AHC) SYSTEM
- Components Identification
- Troubleshooting Guide
- Parts Identification
- AHC Controller Removal And Installation
- Handle Control Unit Connector
- Switch Handle Removal And Installation
- Actuators Disassembly And Assembly
- ADVANCED HAND CONTROL (AHC) SYSTEM (W/ PUSH BUTTON FLOAT)
- Components Identification
- Troubleshooting Guide
- Controller Connector And Wire Identification
- AHC Controller Removal And Installation
- Handle Sensor Removal And Installation
- Handle Sensor Connector
- Switch Handle Removal And Installation
- Actuators Disassembly And Assembly
- ADVANCED CONTROL SYSTEM (ACS) ADVANCED HAND CONTROL
- Components Identification
- Troubleshooting Guide
- Controller, Connector And Wire Identification
- ACS Controller Removal And Installation
- Handle Sensor Connector
- Switch Handle Removal
- Switch Handle Installation
- Actuators Disassembly and Assembly
- ADVANCED CONTROL SYSTEM (ACS) SELECTABLE HAND/FOOT CONTROL
- Components Identification
- Troubleshooting Guide
- Controller, Connector And Wire Identification
- ACS Controller Removal And Installation
- Handle Sensor Connector
- Switch Handle Removal
- Switch Handle Installation
- Actuators Disassembly and Assembly
- Handle Lock Solenoid Removal And Installation
- Handle Lock Solenoid Disassembly And Assembly
- Handle Lock Solenoid Connector
- Calibration Of The ACS System
- Switchable Hand/Foot Controls Calibration Procedure
- Hand Controls Only Calibration Procedure
- Foot Sensor Disassembly And Assembly
- Foot Sensor Connector
- ELECTRICAL/HYDRAULIC CONTROLS REFERENCE
- Controls Identification Chart
- ENGINE SERVICE
- TROUBLESHOOTING
- ENGINE SPEED CONTROL
- Removal And Installation
- Disassembly
- MUFFLER
- AIR CLEANER
- RADIATOR
- COOLING FAN
- Drive Tension Pulley Removal And Installation
- Gearbox/Blower Housing Removal And Installation
- Blower Housing Grill Removal And Installation
- Blower Disassembly And Assembly
- Gearbox Parts Identification
- Gearbox Disassembly
- Gearbox Assembly
- Gearbox Checking Backlash
- ENGINE COMPONENTS AND TESTING
- Compression Checking
- Glow Plugs Checking
- Glow Plugs Removal And Installation
- Fuel Shut-Off Solenoid Checking
- Fuel Shut-Off Solenoid Adjusting
- Fuel Shut-Off Solenoid Removal And Installation
- Checking
- Fuel Injection Pump Removal And Installation
- Timing The Injection Pump
- Fuel Injector Removal And Installation
- Fuel Injector Checking
- Fuel Injector Disassembly
- Fuel Injector Assembly
- Valve Clearance Adjustment
- Rocker Arm And Shaft Checking
- Valve Timing Checking
- ENGINE
- Removal And Installation
- Engine Mount Replacement
- FLYWHEEL AND HOUSING
- Flywheel Removal And Installation
- Ring Gear Removal And Installation
- Housing Removal And Installation
- RPM SENSOR
- RECONDITIONING THE ENGINE
- Cylinder Head Removal And Installation
- Cylinder Head Disassembly And Assembly
- Cylinder Head Servicing
- Cylinder Head Top Clearance
- Checking The Valve Guide
- Reconditioning The Valve And Valve Seat
- Valve Spring
- Rocker Arm And Shaft Checking
- Timing Gearcase Cover Removal And Installation
- Idler Gear And Camshaft Removal And Installation
- Servicing The Camshaft
- Servicing The Idler Gear And Shaft
- Timing Gears Checking Backlash
- Fuel Camshaft Removal And Installation
- Fuel Camshaft Governor
- Crankshaft Gear Removal And Installation
- Oil Pump Removal And Installation
- Oil Pump Service
- Checking Engine Oil Pressure
- Relief Valve
- Piston And Connecting Rod Removal And Installation
- Servicing The Piston And Connecting Rod
- Connecting Rod Alignment
- Crankshaft And Bearings Removal And Installation
- Servicing The Crankshaft And Bearings
- Checking The Cylinder Bore
- Water Pump Disassembly And Assembly
- HEATER
- COMPONENTS
- REGULAR MAINTENANCE
- Filter Elements Removal And Installation
- BASIC TROUBLESHOOTING
- Cleaning The Heater Coil
- Checking The Electrical System
- Engine Coolant By-Passing The Heater Valve
- Heater Valve Not Opening Or Closing
- SYSTEM TROUBLESHOOTING CHART
- HEATER UNIT
- Removal And Installation
- Disassembly And Assembly
- HEATER COIL
- HEATER FAN
- Removal And Installation
- Disassembly And Assembly
- Wire Connector Removal and Installation
- HEATER VALVE
- Removal and Installation
- Disassembly And Assembly
- SPECIFICATIONS
- LOADER SPECIFICATIONS
- Loader Dimensions
- Performance
- Controls
- Engine
- Hydraulic System
- Electrical
- Drive System
- Capacities
- Tires
- ENGINE SPECIFICATIONS
- Fuel Injection Nozzles
- Fuel Injection Pump
- Cylinder Head
- Valves
- Valve Springs
- Valve Timing
- Rocker Arms
- Camshaft
- Tappet
- Cylinders
- Piston Rings
- Pistons
- Connecting Rod
- Oil Pump
- Crankshaft
- Timing Gear
- Thermostat
- Crankshaft Re-Grind Data
- TORQUE SPECIFICATIONS FOR BOLTS
- Torque For General SAE Bolts
- Torque For General Metric Bolts
- Torque For Kubota 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
- CONVERSIONS
- Decimal And Millimeter Equivalents
- U.S. To Metric Conversion
- SMR
- Revision No: 763/763H-1
- Revision No: 763-2
- Revision No: 763-3
- Revision No: 763-4
- Revision No: 763-5
- Revision No: 763-6
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