Bobcat B250 Loader Backhoe Workshop Repair Service Manual – 6902715

(S/N: 572211001 & Above)
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This workshop repair service manual PDF download for the B250 Bobcat Loader Backhoe 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 Backhoe B250
S/N: 572211001 & Above

TABLE OF CONTENTS :

FOREWORD
SAFETY INSTRUCTIONS
SERIAL NUMBER LOCATION
DELIVERY REPORT
BOBCAT LOADER IDENTIFICATION
SAFETY & MAINTENANCE
HYDRAULIC SYSTEM
HYDROSTATIC SYSTEM
DRIVE SYSTEM
MAIN FRAME
ELECTRICAL SYSTEM AND ANALYSIS
ENGINE SERVICE
HEATER
SPECIFICATIONS
SERVICE MANUAL REVISION

MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 6902715 (3-06)
Total Pages : 754

This Bobcat 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
ALPHABETICAL INDEX
CONTENTS
FOREWORD
SAFETY INSTRUCTIONS
Fire Prevention
SERIAL NUMBER LOCATION
Loader Backhoe Serial Number
Engine Serial Number
DELIVERY REPORT
BOBCAT LOADER IDENTIFICATION

SAFETY & MAINTENANCE
LIFTING AND BLOCKING THE LOADER BACKHOE
Procedure
APPROVED LIFT ARM SUPPORT DEVICE
Installing The Approved Lift Arm Support Device
Removing The Approved Lift Arm Support Device
ENGINE COVER
TRANSPORTING THE LOADER BACKHOE
Procedure
TOWING THE LOADER BACKHOE
Procedure
AXLE TOE-IN
Adjustment
SERVICE SCHEDULE
Chart
AIR CLEANER SERVICE
Replacing The Filter
ENGINE COOLING SYSTEM
Coolant Replacement
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 The Oil And Filter
HYDRAULIC/HYDROSTATIC SYSTEM
Checking And Adding Fluid
Cleaning The Cooler
Replacing Hydraulic/Hydrostatic Filter
Replacing Hydraulic Fluid
REAR AXLE
Checking Oil Level
Draining Oil
FRONT AXLE
Checking Oil Level
Draining Oil
BOOM LOCK PIN
Engaging And Disengaging The Pin
BOB-TACH
Inspection And Maintenance
ALTERNATOR BELT
Adjusting The Alternator Belt
LUBRICATING THE LOADER BACKHOE
TIRE MAINTENANCE
Wheel Nuts
Tire Mounting
Tire Pressure
SWING LOCK PIN
Engaging The Swing Lock Pin

HYDRAULIC SYSTEM
HYDRAULIC/HYDROSTATIC SCHEMATIC
HYDRAULIC SYSTEM INFORMATION
Troubleshooting
Description
ARM CYLINDER
Checking
Removal And Installation
Parts Identification
Disassembly
Assembly
BOOM CYLINDER
Checking
Removal And Installation
Parts Identification
Disassembly
Assembly
SWING CYLINDER
Checking
Removal And Installation
Parts Identification
Disassembly
Assembly
Bushing Removal And Installation
BUCKET CYLINDER
Checking
Removal And Installation
Parts Identification
Disassembly
Assembly
STABILIZER CYLINDER
Checking
Removal And Installation
Parts Identification
Disassembly
Assembly
SIDE SHIFT LOCK CYLINDER
Removal And Installation
Parts Identification
Disassembly
Assembly
TILT CYLINDER
Checking
Removal And Installation
Parts Identification
Disassembly
Assembly
LIFT CYLINDER
Checking
Removal And Installation
Parts Identification
Disassembly
Assembly
STEERING CYLINDER (FRONT)
Removal And Installation
Parts Identification
Disassembly And Assembly
Inspection
STEERING CYLINDER (REAR)
Removal And Installation
Parts Identification
Disassembly And Assembly
Inspection
MAIN RELIEF VALVE
Testing The Main Relief Valve
Adjustment
PORT RELIEF VALVE (BACKHOE CONTROL VALVE)
Testing And Adjusting (Arm Control)
Testing And Adjusting (Boom Control)
Testing And Adjusting (Boom Swing Control)
PORT RELIEF VALVE (LOADER CONTROL VALVE)
Testing And Adjusting (Bucket Tilt)
Testing And Adjusting (Front Auxiliary)
LOADER CONTROL VALVE
Removal And Installation
Parts Identification
Disassembly And Assembly
Inlet/Outlet Valve Section
Lift Arm Valve Section
Tilt Valve Section
Auxiliary Valve Section
BACKHOE CONTROL VALVE
Removal And Installation
Parts Identification
Disassembly And Assembly
Inlet/Outlet Valve Section
Arm Valve Section
Tilt Valve Section
Right Stabilizer Valve Section
Left Stabilizer Valve Section
Boom Valve Section
Boom Swing Valve Section
Outlet Valve Section
HYDRAULIC FLUID RESERVOIR
Removal And Installation
Strainer Removal And Installation
HYDRAULIC FILTER HOUSING
Removal And Installation
Disassembly
Assembly
GEAR PUMP
Removal And Installation
Parts Identification
Disassembly And Assembly
Inspection
STEERING PUMP
Removal And Installation
Parts Identification
Disassembly
Inspection
Assembly
TRAVEL PEDAL
Removal And Installation
Parts Identification
Disassembly And Assembly
STEERING VALVE
Removal And Installation
Description
Wheel Alignment Procedure
SAPR BRAKE CYLINDER
Removal And Installation
Parts Identification
Disassembly
Assembly
SAPR BRAKE CONTROL VALVE
Removal And Installation
Parts Identification
Disassembly And Assembly

HYDROSTATIC SYSTEM
HYDROSTATIC SYSTEM INFORMATION
Troubleshooting Chart
Replenishing Valve Function
OIL COOLER
Removal And Installation
Parts Identification
HYDROSTATIC DRIVE MOTOR
Removal And Installation
Parts Identification
Disassembly
Inspection
Assembly
HYDROSTATIC PUMP
Removal And Installation
Parts Identification
Disassembly
Inspection
Assembly
HYDROSTATIC TESTING
Pump Adjustment

DRIVE SYSTEM
PARKING BRAKE
Lever Removal And Installation
Cable Removal And Installation
Adjustment
BRAKE CALIPER
Removal And Installation
Parts Identification
Disassembly And Assembly
Adjustment
REAR AXLE
Removal
Installation
AXLE AND DIFFERENTIAL (REAR)
Troubleshooting Chart
General Information
Wheel Hub/Spindle Parts Identification
Wheel Hub/Spindle Disassembly
Drive Axle Parts Identification
Drive Axle Disassembly
Steering Knuckle Parts Identification
Steering Knuckle Disassembly
Differential Parts Identification
Differential Disassembly
Differential Inspection
Pinion Group Parts Identification
Pinion Group Disassembly
Pinion Group Inspection
Pinion Group Assembly
Differential Assembly
Steering Knuckle Assembly
Drive Axle Assembly
Wheel Hub/Spindle Assembly
STEERING ANGLE ADJUSTMENT (REAR AXLE)
Adjustment
FRONT AXLE
Removal
Installation
AXLE AND DIFFERENTIAL (FRONT)
Troubleshooting Chart
General Information
Wheel Hub/Spindle Parts Identification
Wheel Hub/Spindle Disassembly
Drive Axle Parts Identification
Drive Axle Disassembly
Steering Knuckle Parts Identification
Steering Knuckle Disassembly
Differential Parts Identification
Differential Disassembly
Differential Inspection
Pinion Group Parts Identification
Pinion Group Disassembly
Pinion Group Inspection
Pinion Group Assembly
Differential Assembly
Steering Knuckle Assembly
Drive Axle Assembly
Wheel Hub/Spindle Assembly
STEERING ANGLE ADJUSTMENT (FRONT AXLE)
Adjustment
DRIVESHAFT
Removal And Installation
DROP BOX
Removal And Installation
Parts Identification
Disassembly
Inspection
Assembly

MAIN FRAME
OPERATOR CAB
Not Available At Time Of Printing
ENCLOSED CAB
Removal And Installation
Cab Mount Removal And Installation
OPERATOR SEAT
Removal And Installation
FLOOR PANELS
Left Front Panel Removal And Installation
Right Front Panel Removal And Installation
Rear Panel Removal And Installation
GRILL
Removal And Installation
GRILL FRAME
Removal And Installation
ENGINE SIDE COVERS
Removal And Installation
FENDER
Removal And Installation
ENGINE COVER
Removal And Installation
FUEL TANK
Removal And Installation
Fuel Fill Screen Removal And Installation
LIFT ARMS
Removal And Installation
BOB-TACH
Removal And Installation
Bob-Tach Lever And Wedge
Pivot Pin Bushing Removal And Installation
ARM
Removal And Installation
Arm Pivot Bushing Removal And Installation
BOOM
Removal And Installation
Boom Pivot Bushing Removal And Installation
SWING FRAME
Removal And Installation
Bushing Removal And Installation
X-CHANGE™
Removal And Installation
BUCKET
Backhoe Bucket Teeth Removal And Installation
Loader Bucket Teeth Removal And Installation
STABILIZER FRAME
Removal And Installation
FRONT AXLE PIVOT FRAME
Removal
Installation
Bushing Removal And Installation
REAR WINDOW
Removal And Installation
CAB DOOR
Removal And Installation

ELECTRICAL SYSTEM AND ANALYSIS
ELECTRICAL SCHEMATIC
ELECTRICAL SYSTEM INFORMATION
Troubleshooting Chart
Description
Fuse Location
BATTERY
Removal And Installation
Servicing The Electrical System
Using A Booster Battery (Jump Starting)
ALTERNATOR
Adjusting The Alternator Belt
Description
Tests
Alternator Output Test
Full Field Test
Alternator Regulator Test
Alternator Regulator Test With Voltmeter
Removal And Installation
Parts Identification
Pulley Removal And Installation
Disassembly And Assembly
Rotor Continuity Test
Stator Continuity Test
Rectifier Continuity (Diode) Test
Brush Length
STARTER
Removal And Installation
Checking The Starter In The Loader
Parts Identification
Disassembly
Inspection And Repair
No Load Test
Assembly
FRONT LIGHTS
Bulb Removal And Installation
Housing Removal And Installation
TURN INDICATOR LIGHTS (FRONT)
Bulb Removal And Installation
TURN INDICATOR LIGHTS (REAR)
Bulb Removal And Installation
CAB LIGHTS
Bulb Removal And Installation
Housing Removal And Installation
FUEL LEVEL SENDER
Removal And Installation
INSTRUMENT PANEL
Removal And Installation
FRONT WIPER
Removal And Installation
REAR WIPER
Removal And Installation

ENGINE SERVICE
TROUBLESHOOTING
Chart
ENGINE SPEED CONTROL
Removal And Installation
Cable Removal And Installation
MUFFLER
Removal And Installation
AIR CLEANER
Removal And Installation
RADIATOR
Removal And Installation
ENGINE COMPONENTS AND TESTING
Checking Engine Compression
Checking Glow Plugs
Glow Plug Removal And Installation
Fuel Shut-Off Solenoid Removal And Installation
Checking Fuel Injection Pump
Fuel Injection Pump Removal And Installation
Fuel Injection Pump Timing
Fuel Injector Nozzles Removal And Installation
Checking Fuel Injector, Nozzles
Thermostat Removal And Installation
Water Pump Removal And Installation
ENGINE
Removal And Installation
Mount Replacement
RECONDITIONING THE ENGINE
Timing Gear Case Cover Removal And Installation
Oil Pump Removal And Installation
Crankshaft Front Seal Removal And Installation
Engine Speed Control Plate Removal And Installation
Idle Limit And Fuel Limit Adjustment
Exhaust Manifold Removal And Installation
Valve Cover Removal And Installation
Rocker Arm Removal And Installation
Push Rod Removal And Installation
Tappet Removal And Installation
Water Flange Removal And Installation
Cylinder Head Removal And Installation
Checking Piston Top Clearance
Cylinder Head Disassembly And Assembly
Servicing The Cylinder Head
Combustion Chamber Removal And Installation
Idler Gear Removal And Installation
Camshaft Removal And Installation
Fuel Camshaft Removal And Installation
Oil Pan Removal And Installation
Governor Shaft Removal And Installation
Governor Fork Lever Removal And Installation
Piston Removal And Installation
Checking The Piston And Connecting Rod
Connecting Rod Alignment
Piston Ring Gap
Piston Ring Installation
Connecting Rod Installation
Checking Engine Cylinder Bore
Crankshaft Removal And Installation
Checking Crankshaft Journal And Block Bearing
Checking Crankshaft Journal And Main Bearing
Connecting Rod Journal
Checking The End Play Of The Crankshaft
Crankshaft Alignment
Engine Timing Installation
Timing Gear Backlash, Idler Gear And Crankshaft
Idler Gear And Camshaft Gear
Idler Gear And Fuel Camshaft Gear
Fuel Camshaft Gear And Governor Shaft Gear
FLYWHEEL HOUSING
Removal And Installation
FLYWHEEL
Removal And Installation
Ring Gear Removal And Installation
RUBBER DRIVE COUPLER
Removal And Installation
Disassembly
TURBOCHARGER
Checking
Description
Removal And Installation

HEATER
COMPONENTS
Identification
HEATER FAN
Removal And Installation
HEATER UNIT
Removal And Installation
Disassembly And Assembly

SPECIFICATIONS
LOADER BACKHOE SPECIFICATIONS
Loader Backhoe Dimensions
Backhoe Rated Load Capacity (Per SAE J31)
Performance
Controls
Engine
Electrical
Drive System
Capacities
Tires
ENGINE SPECIFICATIONS
Engine Compression
Fuel Injection Nozzles
Fuel Injection Pump
Cylinder Head
Valves
Valve Springs
Rocker Arms
Camshaft
Cylinders
Piston Rings
Pistons
Crankshaft
Oil Pump
Thermostat
Grinding Specifications for the Crankshaft
LOADER BACKHOE TORQUE
Specifications
TORQUE SPECIFICATIONS FOR BOLTS
Torque For General Metric Bolts
HYDRAULIC/HYDROSTATIC FLUID SPECIFICATIONS
Specifications
CONVERSIONS
Decimal And Millimeter Equivalents
U.S. To Metric Conversion

SERVICE MANUAL REVISION
B250-1
B250-2
B250-3
B250-4

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