A 763 is a handy little skid-steer for farm chores, grading drives, and feeding bales, and it earns its keep until something hydraulic starts leaking or it loses power. That's when people like me grab the service manual, not the operator's book. You reach for this when you're chasing a weird drive issue, sorting out an electrical gremlin, or getting ready to tear into a cylinder or pump over a weekend. It's the book you want open on the bench beside the parts.
What this manual helps you do
- Diagnose hydraulic problems, check pressures, and trace leaks in the loader and drive circuits
- Follow step-by-step teardown and reassembly on the engine, hydrostatic drive, and drive motors
- Troubleshoot electrical issues with wiring diagrams so you can track dead circuits and bad switches
- Replace and adjust major components like cylinders, Bob-Tach parts, control linkages, and axles
- Verify specs after a repair so you know charge pressures, adjustments, and clearances are back in range
Who this is for
This is for anyone wrenching on a Bobcat 763 in a shop or barn, especially owner-operators, small contractors, and field techs. If you just want to learn how to run the machine or see what parts to order, you want the operator's handbook or the parts catalog instead.
FAQ
Q: Is this a searchable PDF and can I read the wiring diagrams on a screen?
A: These manuals are usually scanned or native PDFs that you can search, zoom, and print, and the wiring diagrams are laid out for screen or paper use.
Q: My 763 serial number is outside 512612001-512619999, will this still match?
A: This one is written for that exact serial range, so if yours is outside it, some details may not line up and you should look for the manual that matches your number.
Q: I'm just changing fluids and doing basic service, is this overkill?
A: For simple maintenance it's more than you need, but if you plan to do real repairs beyond fluids and filters, this is the right document.
Bottom line, if your 763 falls in serial range 512612001-512619999 and you're doing your own repairs, this is the yes you're looking for.
📘 Show Index
Table of Contents:
- MAINTENANCE SAFETY
- ALPHABETICAL INDEX
- CONTENTS
- FOREWORD
- SAFETY INSTRUCTIONS
- FIRE PREVENTION
- SERIAL NUMBER LOCATIONS
- LOADER SERIAL NUMBER
- ENGINE SERIAL NUMBER
- DELIVERY REPORT
- BOBCAT LOADER IDENTIFICATION
- PREVENTIVE MAINTENANCE
- SERVICE SCHEDULE
- LIFTING AND BLOCKING THE LOADER
- TRANSPORTING THE BOBCAT LOADER
- TOWING THE LOADER
- STOPPING THE BOBCAT LOADER
- LIFTING THE LOADER
- LIFT ARM SUPPORT DEVICE
- Engaging The Lift Arm Support Device
- Disengaging The Lift Arm Support Device
- OPERATOR CAB
- Description
- Emergency Exit
- Raising The Operator Cab
- Lowering The Operator Cab
- SEAT BAR RESTRAINT SYSTEM (Foot Pedals)
- Description
- Seat Bar Inspection
- Seat Bar Maintenance
- SEAT BAR RESTRAINT SYSTEM (Mechanical Hand Controls)
- Description
- Seat Bar Inspection
- Seat Bar Maintenance
- SEAT BAR RESTRAINT SYSTEM (Advanced Hand Controls)
- Description
- Seat Bar Inspection
- Seat Bar Maintenance
- AIR CLEANER SERVICE
- 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
- Checking The Coolant Level
- Replacing The Coolant
- ALTERNATOR BELT
- Adjusting The Alternator Belt
- FAN GEARBOX
- HYDRAULIC/HYDROSTATIC SYSTEM
- Checking And Adding Fluid
- Replacing Hydraulic/Hydrostatic Filter
- Replacing Hydraulic Fluid
- Hydraulic Reservoir Breather Cap
- SPARK ARRESTOR MUFFLER
- TIRE MAINTENANCE
- Wheel Nuts
- Tire Rotation
- Tire Mounting
- FINAL DRIVE TRANSMISSION (CHAINCASE)
- Checking And Adding Oil
- Replacing Oil In The Chaincase
- DRIVE BELT
- Adjusting The Drive Belt Equipped With The Spring Loaded Drive Idler
- Adjusting The Drive Belt Equipped With The Fixed Drive Idler
- Drive Belt Replacement
- LUBRICATION OF THE BOBCAT LOADER
- BOB–TACH
- Inspection And Maintenance
- REMOTE START SWITCH
- HYDRAULIC SYSTEM
- HYDRAULIC/HYDROSTATIC SCHEMATICS
- TROUBLESHOOTING
- HYDRAULIC SYSTEM INFORMATION
- LIFT CYLINDER(S)
- Checking The Lift Cylinder(s) For Internal Leakage
- Removal And Installation
- TILT CYLINDER
- Checking The Tilt Cylinder For Internal Leakage
- Removal And Installation
- Rod End Seal Replacement
- HYDRAULIC CYLINDER IDENTIFICATION
- Lift Cylinder Components
- Tilt Cylinder Components
- HYDRAULIC CYLINDERS
- BICS™ VALVE (S/N 512220298 & Above, 512440721 & Above and 512612258 & Above)
- Removal
- Lift Arm By–Pass Orifice Disassembly
- Check Valve Disassembly
- Lock Valve Disassembly
- BICS™ Valve Solenoid Disassembly
- BICS™ Valve Solenoid Assembly
- Lock Valve Assembly
- Check Valve Assembly
- Lift Arm By–Pass Orifice Assembly
- Installation
- CONTROL VALVE (S/N 512220298 & Above, 512440721 & Above and 512612258 & Above)
- Removal And Installation
- Identification Chart
- Disassembly
- Lift Base End Restrictor Disassembly
- Load Check Valve Disassembly
- Main Relief Valve Disassembly
- Port Relief Valve Disassembly
- Anti–Cavitation Valve Disassembly
- Rubber Boot Disassembly
- Lift Spool And Detent Disassembly
- Tilt Spool And Centering Spring Disassembly
- Auxiliary Spool Disassembly
- Auxiliary Electric Solenoid Disassembly
- Port–Auxiliary Section Disassembly
- Cleaning And Inspection
- Port–Auxiliary Section Assembly
- Auxiliary Electric Solenoid Assembly
- Auxiliary Spool Assembly
- Tilt Spool And Centering Spring Assembly
- Lift Spool And Detent Assembly
- Rubber Boot Assembly
- Anti–Cavitation Valve Assembly
- Port Relief Valve Assembly
- Main Relief Valve Assembly
- Load Check Valve Assembly
- Spool Seal Installation
- CONTROL VALVE (S/N 512220297 & Below,512440720 & Below and 512612257 & Below)
- Removal And Installation
- Identification Chart
- Disassembly And Assembly
- Load Check Valve
- Main Relief Valve
- Port Relief Valve
- Anti–Cavitation Valve
- Rubber Boot
- Lift Spool Detent
- Tilt Centering Spring
- Auxiliary Spool
- Auxiliary Electric Solenoid
- Plug/Port Relief Valve
- Inspection
- Identification And Installation Of Spool Seal
- MAIN RELIEF VALVE
- Checking
- Adjustment
- Removal And Installation
- HYDRAULIC PUMP
- Removal And Installation
- Checking The Output Of The Hydraulic Pump
- Checking The Output Of The High Flow Hydraulic Pump (763H)
- Disassembly And Assembly
- Inspection
- Identification
- Removal And Installation (763H)
- Identification (763H)
- Disassembly And Assembly (763H)
- HYDRAULIC FILTER HOUSING
- HYDRAULIC FLUID RESERVOIR
- CONTROL PEDALS
- Removal And Installation
- Pedal Adjustment
- SELECT VALVE (763H)
- Checking the Main Relief Valve in High Horsepower Select Valve
- Removal And Installation
- Disassembly And Assembly (New Style Valve)
- Solenoid Testing (New Style Valve)
- Disassembly And Assembly (Old Style Valve)
- Solenoid Testing (Old Style Valve)
- PEDAL INTERLOCK LINKAGE
- Removal And Installation
- Adjustment
- LIFT LOCK BY–PASS VALVE
- Removal And Installation (S/N 512220298 & Above, S/N 512440721 & Above, S/N 512612258 & Above)
- Removal And Installation (S/N 512220297 & Below, S/N 512440720 & Below, S/N 512612257 & Below)
- Disassembly And Assembly (S/N 512220297 & Below, S/N 512440720 & Below, S/N 512612257 & Below)
- TILT LOCK VALVE
- Removal And Installation (S/N 512220297 & Below, S/N 512440720 & Below, S/N 512612257 & Below)
- Disassembly And Assembly (S/N 512220297 & Below, S/N 512440720 & Below, S/N 512612257 & Below)
- HYDROSTATIC SYSTEM
- TROUBLESHOOTING
- HYDROSTATIC SYSTEM INFORMATION
- Replenishing Valve Function
- Checking Charge Pressure
- CONTROL PANEL
- Removal And Installation
- Steering Shock Removal And Installation
- Steering Shaft Removal And Installation
- Steering Shaft Disassembly And Assembly
- Steering Lever Removal And Installation
- Rubber Boot Replacement
- STEERING LINKAGE
- Removal And Installation
- Steering Linkage Adjustment
- Steering Neutral Adjustment
- HYDROSTATIC DRIVE MOTOR
- Removal And Installation
- Identification (S/N 512218843 & Below, S/N 512612191 & Below & S/N 512440645 & Below)
- Disassembly And Assembly (S/N 512218843 & Below, S/N 512612191 & Below & S/N 512440645 & Below)
- nspection (S/N 512218843 & Below, S/N 512612191 & Below & S/N 512440645 & Below)
- Timing The Hydrostatic Motor (S/N 512218843 & Below, S/N 512612191 & Below & S/N 512440645 & Below)
- HYDROSTATIC MOTOR 30 SERIES
- Identification (S/N 512218844 & Above, S/N 512612192 & Above, & S/N 512440646 & Above)
- Disassembly (S/N 512218844 & Above, S/N 512612192 & Above, & S/N 512440646 & Above)
- Assembly (S/N 512218844 & Above, S/N 512612192 & Above, & S/N 512440646 & Above)
- HYDROSTATIC PUMP
- Removal And Installation
- Identification MODEL: 763
- Disassembly And Assembly
- Inspection
- Swashplate Pre–Load
- DRIVE BELT HOUSING
- SPRING LOADED DRIVE BELT TENSIONER PULLEY
- Removal And Installation
- Identification
- Disassembly
- Assembly
- FIXED DRIVE BELT TENSIONER PULLEY
- Removal And Installation
- Identification
- Disassembly
- Assembly
- Checking Pulley End Play
- OIL COOLER
- DRIVE SYSTEM
- PARKING BRAKE
- Removal And Installation
- Disassembly And Assembly
- PARKING BRAKE DISC
- TRACTION LOCK GUIDES
- CHAINCASE FLUID
- Removing Oil From The Chaincase
- CHAINCASE COVERS
- Center Chaincase Cover Removal And Installation
- Front Chaincase Cover Removal And Installation
- Rear Chaincase Cover Removal And Installation
- MOTOR CARRIER
- Shaft Seal Replacement
- Removal And Installation
- Disassembly
- Assembly
- AXLE SEAL
- AXLE, SPROCKET AND BEARINGS
- DRIVE CHAIN
- MAIN FRAME
- SEAT BAR (W/GAS CYLINDER)
- Removal And Installation
- Assembly
- Compressing the Gas Cylinder
- SEAT BAR (W/COMPRESSION SPRING)
- Removal And Installation
- Assembling Components
- Compression Spring Disassembly And Assembly
- OPERATOR CAB GAS CYLINDER
- Removal And Installation
- Disassembly And Assembly
- OPERATOR CAB
- OPERATOR SEAT
- BOB–TACH
- Removal And Installation
- Bob–Tach Lever And Wedge
- Bob–Tach Stops
- LIFT ARMS
- REAR GRILL
- FUEL TANK
- Removal And Installation
- Fuel Level Sender
- REAR DOOR
- Removal And Installation (2 piece door)
- Removal And Installation (One Piece Door)
- Hood Removal And Installation (Two Piece Door)
- Door Latch Removal And Installation
- Door Latch And Catch Adjustment
- REAR LIGHTS
- Removal and Installation (One Piece Door)
- ELECTRICAL SYSTEM
- ELECTRICAL SCHEMATICS
- TROUBLESHOOTING
- ELECTRICAL SYSTEM INFORMATION
- Description
- Fuse Location (Standard & BOSS® Option)
- BATTERY
- Removal And Installation
- Servicing The Battery
- Using A Booster Battery (Jump Starting)
- ALTERNATOR
- Alternator Output Test
- Rectifier (Diode) Test
- Alternator Regulator Test
- Removal And Installation
- Adjusting The Alternator Belt
- Disassembly And Inspection
- Stator Continuity Test
- Stator Ground Test
- Rotor Continuity Test
- Rotor Ground Test
- Rectifier Continuity (Diode) Test
- Assembly
- STARTER (DELCO REMY)
- Removal And Installation
- Checking The Starter
- Parts Identification
- Disassembly And Assembly
- Cleaning And Inspection
- STARTER (DENSO)
- Parts Identification
- Disassembly
- Inspection And Repair
- No Load Test
- Assembly
- STANDARD INSTRUMENT PANEL
- FRONT LIGHTS
- RELAY SWITCHES
- ENGINE SERVICE
- TROUBLESHOOTING
- ENGINE SPEED CONTROL
- Removal And Installation
- Disassembly
- RADIATOR
- ENGINE MUFFLER
- BLOWER HOUSING/FAN GEARBOX
- Removal And Installation
- Tension Pulley Removal And Installation
- Blower Fan Disassembly And Assembly
- FAN GEARBOX
- Identification
- Disassembly
- Assembly
- Checking Backlash
- AIR CLEANER
- ENGINE
- Removal And Installation
- Engine Mount Replacement
- FLYWHEEL
- Removal And Installation
- Flywheel Ring Gear
- ENGINE COMPRESSION
- GLOW PLUGS
- Checking The Glow Plugs
- Removal And Installation
- FUEL INJECTION PUMP
- Checking The Injection Pump
- Adjusting Shut–Off Linkage
- Removal And Installation
- Timing The Injection Pump
- FUEL INJECTION NOZZLES
- Removal And Installation
- Checking The Injector Nozzle
- CYLINDER HEAD
- Removal And Installation
- Disassembly And Assembly
- Servicing The Cylinder Head
- Top Clearance
- VALVE, VALVE SEAT AND GUIDE
- Checking The Valve Guide
- Reconditioning The Valve And Valve Seat
- Valve Spring
- VALVE CLEARANCE
- ROCKER ARM AND SHAFT
- TIMING GEARCASE COVER
- IDLER GEAR AND CAMSHAFT
- Removal And Installation
- Servicing The Camshaft
- Servicing The Idler Gear And Shaft
- TIMING GEARS
- FUEL CAMSHAFT
- Removal And Installation
- Governor
- CRANKSHAFT GEAR
- 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
- CYLINDER BORE
- Checking The Cylinder Bore
- WATER PUMP
- SYSTEMS ANALYSIS
- BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) (S/N 512235900 & Above), (S/N 512442000 & Above), (S/N 512613600 & Above)
- Inspecting The BICS™ Controller
- 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
- Troubleshooting Chart
- BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) (S/N 512235899 & Below ), (S/N 512441999 & Below), (S/N 512613599 & Below)
- Inspecting The BICS™ Controller
- Inspecting Deactivation Of The Auxiliary Hydraulics System (Engine STOPPED – Key ON)
- Inspecting The Seat And Seat Bar Sensors (Engine Running)
- Inspecting The Traction Lock (Engine Running)
- Inspecting The Lift Arm By–Pass Control
- Maintenance
- Troubleshooting Chart
- BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)
- Troubleshooting Guide
- BICS CONTROLLER
- TRACTION LOCK
- SEAT SENSOR
- SEAT BAR SENSOR
- SEAT SENSOR
- Seat Sensor Test
- Removal And Installation
- BICS™ Controller Seat Sensor Circuit Test
- BICS™ SYSTEM CONTROLLER
- SEAT BAR SENSOR
- Seat Bar Sensor Test
- Removal And Installation
- BICS™ Controller Seat Bar Sensor Circuit Test
- TRACTION LOCK
- BOSS® DIAGNOSTIC TOOL
- SENDER AND SENSOR
- RPM SENSOR
- MONITOR SERVICE CODES
- TROUBLESHOOTING THE BOSS® & LCD DISPLAY
- OPERATION SENSING SYSTEM UNIT
- BOSS® INSTRUMENT PANEL
- ELECTRICAL/HYDRAULIC CONTROLS REFERENCE
- Controls Identification Chart
- SPECIFICATIONS
- SKID STEER LOADER SPECIFICATIONS
- 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
- Crankshaft
- Thermostat
- Crankshaft Re–Grind Data
- Torque For General 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
- TORQUE SPECIFICATIONS FOR LOADER
- STANDARD TORQUE SPECIFICATIONS FOR BOLTS
- DECIMAL AND MILLIMETER EQUIVALENTS
- U.S. TO METRIC CONVERSION
- ADVANCE HAND CONTROL SYSTEM (AHC)
- ADVANVED HANDCONTROL ELECTRICAL SCHEMATICS
- AHC COMPONENTS
- TROUBLESHOOTING (AHC)
- ACTUATOR VOLTAGE TEST
- HANDLE CONTROL UNIT TEST
- BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)
- ADVANCED HAND CONTROLS (AHC)
- AHC/PWM CONTROLLER
- Removal And Installation
- Test
- Description
- Conditions
- Troubleshooting Chart
- Handle Testing
- Solenoid Coil Testing
- CONTROL HANDLE (ADVANCED HAND CONTROL) (AHC)
- Control Handle Unit Removal And Installation
- Control Unit Connector
- Switch Handle Removal And Installation
- AHC Handle Removal And Installation
- AHC Handle Disassembly And Assembly
- AHC Steering Lever Removal And Installation
- AHC Steering Lever Boot
- Actuators Removal And Installation
- Actuators Disassembly And Assembly
- CONTROL HANDLE (ADVANCED HAND CONTROL) (AHC) (W/PUSH BUTTON FLOAT)
- Components Identification
- Controller Connector And Wire Identification
- AHC/PWM Controller Removal And Installation
- Handle Sensor Removal And Installation
- Handle Sensor Connector
- Switch Handle Removal And Installation
- Control Handle Removal And Installation
- Control Handle Disassembly And Assembly
- Control Lever Removal And Installation
- Control Lever Boot
- Actuators Disassembly And Assembly
- BICS™ VALVE
- Lift Arm By–Pass Orifice
- Check Valve
- Lock Valve
- BICS™ Valve Solenoid
- Removal And Installation
- HYDRAULIC CONTROL VALVE
- Removal And Installation
- Identification Chart
- Disassembly And Assembly
- Load Check Valve
- Lift Base End Restrictor
- Main Relief Valve
- Port Relief Valve (Lift)
- Anti–Cavitation/Port Relief Valve
- Port Relief Valve (Tilt)
- Anti–Cavitation Valve
- Rubber Boot
- Lift And Tilt Spool
- Inspection
- Auxiliary Spool
- Auxiliary Electrical Solenoid
- Spool Seal Installation
- H–Port Auxiliary Section
- SERVICE MANUAL REVISIONS
- 763, 763H–1
- 763, 763H–2
- 763, 763H–3
- 763, 763H–4
- 763, 763H-5
- 763, 763H-6
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