Bobcat 440, 443 & 443B Skid-Steer Loader Repair Service Manual – 6566694

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This workshop repair service manual PDF download for the 440, 443 & 443B 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 440
Bobcat Loader 443
Bobcat Loader 443B

TABLE OF CONTENTS :

FOREWORD
PREVENTIVE MAINTENANCE
HYDRAULIC SYSTEM
HYDROSTATIC SYSTEM
DRIVE SYSTEM
MAIN FRAME
ELECTRICAL SYSTEM
ENGINE SERVICE
TECHNICAL DATA
SPECIFICATIONS
SERVICE MANUAL REVISIONS

MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 6566694 (11–95)
Total Pages : 346

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

PREVENTIVE MAINTENANCE
SERVICE SCHEDULE
PREVENTIVE MAINTENANCE
Serial Number Identification
Loader Serial Number
Engine Serial Number
Delivery Report
ENGINE SERVICE (General)
Air Cleaner Service – 440
Air Cleaner Service – 443
Fuel System
Fuel Filter – 440
Fuel Filter – 443, 443B
Engine Lubrication System
Engine Cooling System (440)
Engine Cooling System (443 & 443B)
Replacement Of The Engine Oil And Filter
ELECTRICAL SYSTEM
Electrical System Service
Using An Extra Battery (Jump Starting)
Installing A New Battery
SPARK ARRESTOR MUFFLER
HYDRAULIC/HYDROSTATIC SYSTEM
Replacing The Hydraulic Filter Element
Checking & Adding Hydraulic Fluid
Removing The Hydraulic/Hydrostatic Fluid
FINAL DRIVE TRANSMISSION (CHAINCASE)
Checking/Adding Chaincase Fluid
TIRE MAINTENANCE
Tire Rotation
Wheel Nuts
LUBRICATION OF THE LOADER
ROLL OVER PROTECTIVE STRUCTURE (ROPS &FOPS)
Operator Cab
TRANSPORTING THE BOBCAT LOADER
Loading The Bobcat Loader
Fastening The Loader To The Transport Vehicle
LIFT ARM SUPPORT DEVICE
Installing The Lift Arm Support Device
STOPPING THE BOBCAT LOADER

HYDRAULIC SYSTEM
HYDRAULIC / HYDROSTATIC SCHEMATICS
TROUBLESHOOTING
HYDROSTATIC SYSTEM INFORMATION
37° Flare Connections
Straight Thread O–Ring Fitting
Tubelines And Hoses
HYDRAULIC CONTROL VALVE
Relief Valve
Removal Of The Hydraulic Control Valve
Disassembly Of The Control Valve
Inspection Of The Control Valve
Assembly Of The Control Valve
Installing The Control Valve
HYDRAULIC PUMP
Checking Output Of The Hydraulic Pump
Removal Of The Hydraulic Pump
Disassembly Of The Hydraulic Pump
Inspection Of The Hydraulic Pump
Assembly Of The Hydraulic Pump
Installation Of The Hydraulic Pump
Start Up Procedure For The Hydraulic Pump
LIFT CYLINDER
Checking The Lift Cylinders
Removing The Lift Cylinder
Installation Of The Lift Cylinder
TILT CYLINDER
Checking The Tilt Cylinder
Removing The Tilt Cylinder
Installing The Tilt Cylinder
HYDRAULIC CYLINDER REPAIR
Disassembly Of The Hydraulic Cylinder
Assembly Of The Hydraulic Cylinder
HYDRAULIC/HYDROSTATIC RESERVOIR
Removing The Hydraulic/Hydrostatic Reservoir
CONTROL PEDAL, LINKAGE & LOCKS
Removing The Control Pedal
Installing The Control Pedal
Pedal Lock Linkage
Removal
Installation
SEAT BAR SYSTEM
Seat Bar Installation
Seat Bar Maintenance

HYDROSTATIC SYSTEM
TROUBLESHOOTING
HYDROSTATIC SYSTEM INFORMATION
Replenishing Valves Function
STEERING LEVERS
Removing The Steering Levers
Repairing The Steering Levers
Installing The Steering Levers
STEERING LINKAGE
Adjusting The Steering Linkage
Removing The Pintle Arms
Installing The Pintle Arms
PORT BLOCK
Checking Charge Pressure
Charge Pressure Relief Valve
Cold Weather By–Pass Valve
Removing The Port Block
Installing The Port Block
HYDROSTATIC MOTOR
Removing The Hydrostatic Motor
Disassembly Of The Hydrostatic Motor
Hydrostatic Motor Inspection
Assembly Of The Hydrostatic Motor
Start Up Procedure For The Hydrostatic Motor
HYDROSTATIC PUMP
Removing The Hydrostatic Pumps
Disassembly Of The Hydrostatic Pump
Inspection Of The Hydrostatic Pumps
Assembly Of The Hydrostatic Pumps
Installing The Hydrostatic Pumps
Hydrostatic Pump Start Up Procedure
DRIVE BELT AND TENSION PULLEY
Removing Tension Pulley
Installing Tension Pulley
Drive Belt Removal–In The Loader
TOWING THE BOBCAT LOADER

DRIVE SYSTEM
PARKING BRAKE
Parking Brake Adjustment
Removing Parking Brake
Inspecting The Parking Brake
Installing The Parking Brake
DRIVE CHAINS
Removing The Drive Chain(s)
Installing The Drive Chain(s)
AXLES AND BEARINGS
Removing The Axle(s) And Bearings
Assembly Of The Axle
Installing The Axle(s) And Bearings
CHAINCASE FLUID
Replacing Chaincase Fluid

MAIN FRAME
OPERATOR CAB
Raising The Operator Cab
Lowering The Operator Cab
Jumper Start Switch
Removing The Operator Cab
Installing The Operator Cab
LIFT ARMS
Removing The Lift Arms
Installing The Lift Arms
BOB–TACH
Removing The Bob–Tach
Disassembly Of The Bob–Tach
Assembly Of The Bob–Tach
Installing The Bob–Tach
REAR DOOR
Removing The Rear Door
FUEL TANK
Removing The Fuel Tank
Installing The Fuel Tank
REAR WINDOW
Installing Rear Window

ELECTRICAL SYSTEM
ELECTRICAL SCHEMATICS
TROUBLESHOOTING
ELECTRICAL SYSTEM
Electrical Circuitry
Safety Procedures For The Batteries
Precautions For The Alternator
BATTERY
Removing The Battery
Checking The Battery
Installing The Battery
OPERATOR CAB WIRE HARNESS
Removing The Wire Harness
Installing The Wire Harness
ENGINE WIRE HARNESS
ALTERNATOR SYSTEM (440)
Replacing The Stator
ALTERNATOR SYSTEM (443)
Adjusting The Alternator
Checking The Alternator (443) (Early Models)
Removing The Alternator
Repairing The Alternator (Early Models)
Install The Alternator
ALTERNATOR (Melroe)
Alternator Output Test (New Style)
Rectifier (Diode) Test (New Style)
Alternator Regulator Test (New Style)
Disassembly And Inspection (New Style)
Stator Continuity Test (New Style)
Stator Ground Test (New Style)
Rotor Continuity Test (New Style)
Rotor Ground Test (New Style)
Rectifier Continuity (Diode) Test (New Style)
Assembly (New Style)
STARTER (440)
Checking The Starter (440)
Removing The Starter
Repairing The Starter
Installing The Starter
STARTER (443)
Checking The Starter (443)
Removing The Starter
Repairing The Starter
Installing The Starter
ALTERNATOR (Motorola)
Belt Tension
Troubleshooting The Alternator
Checking The Alternator Output
Removal And Installation
Disassembly And Assembly

ENGINE SERVICE
ENGINE SERVICE – KOHLER (440)
TROUBLESHOOTING
ENGINE & ATTACHING PARTS
Removing The Engine (Early Model)
Installing The Engine
Removing The Engine (Later Model)
Oil Cooler Removal
Engine Muffler Removal
Engine Muffler Installation
IGNITION SYSTEM
Spark Plugs
Breaker Points
Condenser
Ignition Coil
Static Ignition Timing
Timing Light
Valve & Tappet Clearance
Compression Test
CARBURETOR AND GOVERNOR
Carburetor Adjustment On The Engine
Main Fuel Adjustment
Idle Fuel Adjustment
Idle Speed Setting
Shutdown Control Solenoid
Reconditioning the Carburetor
Disassembly
Assembly
Governor and Adjustment
Adjustments
Carburetor
Adjusting the Carburetor
Throttle Shaft
Choke Shaft
Float Level
RECONDITIONING THE ENGINE
Engine Disassembly
Cylinder Head
Cylinder Barrels
Cylinder Bore
Valves
Valve Guide
Valve Seat Inserts
Valve Springs
Piston And Piston Rings
Crankshaft And Connecting Rods
Connecting Rods
Governor Inspection
Oil Pump Inspection
Assembling The Engine
ENGINE SERVICE – KOHLER (443)
TROUBLESHOOTING
FUEL SYSTEM
Replacing The Fuel Filter
Removing The Air From The Fuel System
Fuel Injection Pump
Checking The Injection Pump
Removing Injection Pump
Installation
Timing The Fuel Injection Pump
Fuel Injector Nozzles
Nozzle Removal
Checking Fuel Injector Nozzles
Nozzle Installation
Checking Glow Plugs
Engine Compression Test
ENGINE & ATTACHING PARTS
Removing The Engine
Installing The Engine
Oil Cooler & Shrouding
Removal
Installation
Engine Radiator Removal
Engine Radiator Installation
Engine Blower Fan & Shrouding
Installation
Fan Blower & Water Pump Belt
Adjustment
Engine Flywheel Removal
Engine Flywheel Installation
CYLINDER HEAD
Removing The Cylinder Head
Disassembly Of The Cylinder Head
Servicing The Cylinder Head
Assembly Of The Cylinder Head
Installing The Cylinder Head
REPAIRING THE ENGINE
Removing The Gear Case
Removing The Timing Gear, Camshaft & Oil Pump
Removing Pistons & Crankshaft
Servicing The Timing Gear And Camshaft
Servicing The Connecting Rods And Pistons
Servicing The Crankshaft
Servicing The Cylinder Liners
Servicing The Oil Pump
Servicing The Water Pump
ASSEMBLY OF THE ENGINE
Installing The Crankshaft
Installing The Pistons
Installing The Camshaft And Timing Gears
Installing The Gearcase Cover

TECHNICAL DATA
440 LOADER SPECIFICATIONS
LOADER DIMENSIONS
OPERATIONS & PERFORMANCE
ENGINE
HYDRAULIC SYSTEM
ELECTRICAL
DRIVE SYSTEM
CAPACITIES
TIRES
ENGINE SPECIFICATIONS – 440 (KOHLER)
Engine (General)
Cylinder Bore
Crankshaft
Camshaft
Connecting Rod
Piston, Pin & Rings
Valves, Guides & Tappet
Oil Pump
Engine Torque
443 LOADER SPECIFICATIONS
LOADER DIMENSIONS
OPERATIONS & PERFORMANCE
ENGINE
HYDRAULIC SYSTEM
ELECTRICAL
DRIVE SYSTEM
CAPACITIES
TIRES
ENGINE SPECIFICATIONS – 443 (KUBOTA)
Fuel Injector Nozzles
Fuel Injection Pump
Cylinder Head
Valves
Valve Springs
Rocker Arms
Camshaft
Cylinders
Piston Rings
Pistons
Crankshaft
Oil Pump
Thermostat
Engine Torque
Crankshaft Re–Grind Data

SPECIFICATIONS
TORQUE SPECIFICATIONS
Engine Group – 440 Loader
Engine Group – 443 Loader
Fuel System Group
Steering Controls & Panel Group
Bob–Tach & Lift Arm Group
Seat Bar & Pedal Group
Brake, Chaincase & Axle Group
Hydraulic Group (Auxiliary Hydraulic–Optional)
Operator Cab, Main Frame & Rear Door Group
Hydrostatic Group – 440 Loader
Hydrostatic Group – 443 Loader
HYDRAULIC/HYDROSTATIC FLUID SPECIFICATIONS
DECIMAL AND MILLIMETER EQUIVALENTS
U.S. TO METRIC CONVERSION
STANDARD TORQUE SPECIFICATIONS FOR BOLTS

SERVICE MANUAL REVISIONS
440-1
440-2

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