Bobcat B300 B-Series Backhoe Loader Service Manual (6903702)

Bobcat B300 B-Series Backhoe Loader Service Manual 6903702 (6-12)

This technical service manual for the Bobcat B300 B-Series Backhoe Loader (S/N 573111001 & Above) provides comprehensive diagnostic charts, repair instructions, and system overhauls for professionals. Detailed coverage includes hydraulic, hydrostatic, drivetrain, engine, electrical, and frame systems with full parts breakdowns and service workflows.

Model Covers:

Bobcat B300 B-Series Backhoe Loader
S/N 573111001 & Above
Ingersoll Rand

Note:  For slightly earlier B-Series units, refer to:
👉 B-Series Manual (S/N 572311001 & Above) – 6902773

For pre-B-Series equipment, use:
👉 Standard B300 Manual (S/N 571711001 & Above) – 6901906

File Format: PDF

Size: 21.81 MB

No. of pages: 772

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

📑 Table of Contents Overview:

Maintenance & Preventive Service

• Lift arm safety, axle toe-in, tire maintenance, air cleaner and oil filter replacements
• Cooling system flushing, hydraulic fluid changes, alternator belt tensioning
• Lubrication charts, towing and transport procedures

Hydraulic System Rebuilds

• Arm, boom, swing, bucket, tilt, stabilizer and steering cylinder servicing
• Control valves, gear pump, reservoir, filter housing, and relief valve testing
• Full hydraulic schematics and troubleshooting workflows

Hydrostatic Components & Testing

• Drive motor, oil cooler, and hydrostatic pump removal, inspection and assembly
• Pump testing worksheet and replenishing valve diagnostics

Drive System & Differential Service

• Rear/front axle disassembly, planetary carrier rebuilds and pinion group inspection
• Differential overhaul, drop box servicing, driveshaft, and parking brake testing
• Steering knuckle, wheel hub, and alignment adjustments

Main Frame & Structural Components

• Fuel tank, seat, cab, fenders, floor panels, grill, lift arms and stabilizers
• Bob-Tach, X-Change™, swing frame, boom, arm and bucket procedures

Electrical & Lighting System

• Starter, alternator, battery, relay locations, fuse diagnostics and lighting repair
• Instrument panel, fuel sender and cab lighting servicing with test protocols

Engine & Component Testing

• Compression checks, injection system tuning, valve and timing gear adjustments
• Camshaft, piston, crankshaft, connecting rod and oil pump procedures
• Cooling system, water pump, muffler and full engine reconditioning

Technical Specifications & Charts

• Loader/backhoe dimensions, performance data, torque specs, engine and hydraulic charts
• Fluid specs and conversion tables included

This Bobcat B300 B-Series Service Manual is the essential resource for detailed maintenance and expert repair of high-performance backhoe loaders.