Bobcat B300 Loader Backhoe Service Manual 6901906 – S/N 571711001 & Above Repair Guide

Description

The Bobcat B300 Loader Backhoe Service Manual is the complete workshop repair guide for machines from serial number 571711001 and above. Published under document number 6901906, this 628-page PDF covers every major system on the B300 — Kubota diesel engine, hydraulics, hydrostatics, drive axles, electrical, and main frame — with the removal, disassembly, inspection, assembly and installation procedures Bobcat service personnel used in the field. Whether you are rebuilding a Kubota V2203 engine, chasing a hydrostatic charge pressure fault, or repacking a backhoe boom cylinder, this Bobcat B300 Loader Backhoe Service Manual puts the correct step-by-step procedure, torque value and specification in front of you.

File Details

• Manual Type: Service / Workshop Repair Manual
• Brand: Bobcat
• Model: B300 Loader Backhoe
• Serial Number Coverage: 571711001 & Above
• Document Number: 6901906
• Publication Date: November 2002 (revision sheets through 2012 included)
• Language: English
• Page Count: 628 pages
• File Format: PDF

Chapters Covered

• Safety & Maintenance
  • Warning instructions and safety alert symbols
  • Lift arm support device installation and removal
  • Lifting and blocking the loader backhoe
  • Engine cover and engine side covers
  • Transporting and towing the loader backhoe
  • Axle toe-in adjustment
  • Service schedule chart
  • Air cleaner service, alternator belt, engine cooling system
  • Fuel system, engine lubrication system
  • Hydraulic/hydrostatic system service
  • Front axle and rear axle service
  • Backhoe boom lock, Bob-Tach hand lever
  • Tire maintenance and lubricating the loader backhoe
• Hydraulic System
  • Hydraulic system information and troubleshooting
  • Loader control valve (lift arm, tilt, auxiliary front and rear, inlet/outlet)
  • Backhoe control valve (arm, boom, boom swing, tilt, left and right stabilizer, inlet/outlet)
  • Arm, boom, bucket, swing, stabilizer, lift, tilt and steering cylinders
  • Gear pump, hydraulic filter housing, hydraulic fluid reservoir
  • Main relief valve and port relief valves
  • Steering pump and steering valve
  • Hydraulic/hydrostatic symbol glossary
• Hydrostatic System
  • Hydrostatic system information
  • Hydrostatic drive motor
  • Hydrostatic pump
  • Oil cooler
  • Hydrostatic testing (charge pressure, creep adjustment, torque limiter)
• Drive System
  • Rear axle removal and installation
  • Front axle removal and installation
  • Axle and differential (front)
  • Axle and differential (rear)
  • Driveshaft
  • Drop box
  • Parking brake and parking brake housing
  • Steering angle adjustment (front and rear axle)
• Main Frame
  • Operator canopy, operator seat
  • Floor panels and center floor panel
  • Grill and grill frame
  • Engine side covers and engine cover
  • Fender
  • Fuel tank
  • Lift arms
  • Bob-Tach
  • Arm, boom, swing frame
  • Bucket and bucket positioning link
  • Stabilizer
  • X-Change
• Electrical System & Analysis
  • Electrical system information and troubleshooting
  • Battery
  • Alternator (description, tests, disassembly and assembly)
  • Starter (removal, disassembly, inspection, assembly, no-load test)
  • Front lights, turn indicator lights (front and rear), cab lights
  • Fuel level sender
  • Instrument panel
  • Wiring schematics
• Engine Service
  • Engine troubleshooting chart
  • Engine speed control
  • Muffler
  • Air cleaner
  • Radiator
  • Engine components and testing (valve clearance, compression, fuel injection pump, nozzles, glow plugs)
  • Engine removal and installation
  • Reconditioning the engine (cylinder head, camshaft, crankshaft, pistons, bearings, oil pump, water pump)
  • Flywheel and flywheel housing
  • Drive coupler
• Specifications
  • Conversions (decimal and millimeter equivalents, U.S. to metric)
  • Loader specifications
  • Engine specifications
  • Loader backhoe torque
  • Torque specifications for general metric bolts
  • Hydraulic/hydrostatic fluid specifications

That contents map is only part of the story. What makes this Bobcat B300 Loader Backhoe Service Manual genuinely useful is the depth underneath each heading — the actual disassembly order for a hydrostatic drive motor, the exact Loctite and torque call-outs for a tilt cylinder head gland, the shim-count method for timing the fuel injection pump to 17° B.T.D.C., and the port relief valve adjustment figures for every section of the backhoe control valve. The document includes a full hydraulic/hydrostatic symbol glossary so the schematics can actually be read, a wiring schematic set for the B300 (S/N 571711001 and above), and complete engine specifications from valve clearance up to crankshaft grinding dimensions.

What This Manual Enables You to Do

• Rebuild or reseal hydraulic cylinders — arm, boom, bucket, swing, stabilizer, lift, tilt and steering cylinders all have full disassembly, inspection and assembly procedures with torque values for head glands, pistons and pivot pin retainers.
• Service the loader and backhoe control valves — section-by-section disassembly of the loader control valve (lift arm, tilt, auxiliary front and rear) and the backhoe control valve (arm, boom, boom swing, tilt, left/right stabilizer, inlet/outlet, outlet).
• Diagnose and adjust the hydrostatic drive — charge pressure testing, creep adjustment, torque limiter adjustment, hydrostatic pump and motor disassembly with inspection limits.
• Repair the Kubota V2203 diesel engine — compression testing, injection pump timing, injector nozzle testing, full engine reconditioning from cylinder head resurfacing to crankshaft grinding and piston ring fitting.
• Recondition the drive line — front and rear axle overhauls, differential carrier service, drop box disassembly/assembly, driveshaft and parking brake housing.
• Fix electrical faults — starter and alternator testing and overhaul, lighting, fuel level sender, instrument panel, and complete wiring schematics to trace a circuit.
• Read the schematics properly — the hydraulic/hydrostatic symbol glossary decodes every symbol used in the system diagrams.
• Perform scheduled maintenance correctly — service schedule chart, fluid capacities, lubricant types, tire pressures, torque tables and adjustment intervals.

Who This Manual Is For

This Bobcat B300 Loader Backhoe Service Manual is written for the working mechanic, the heavy equipment shop, the owner-operator who maintains his own machine, and the rebuilder working through a full restoration. The torque tables, clearance limits and diagnostic values are the same ones a Bobcat dealer technician would reference, so the manual supports both routine maintenance and complete component overhauls. It also works well for anyone who has to inspect a machine before purchase or troubleshoot a fault without a dealer visit.

Why the Correct Procedures and Specs Matter on the B300

The B300 combines a hydrostatic drive, a loader circuit and a backhoe circuit on the same machine, which means misdiagnosis is easy if you are working without the pressure values and adjustment order. Getting the fuel injection pump timing wrong or missing a shim changes engine timing by roughly 0.5° per 0.05 mm, and a hydrostatic charge pressure fault can be mistaken for a drive motor problem without the test procedure in the manual. Having the exact torque value for a cylinder head gland or a pivot pin retainer prevents stripped threads and premature leaks on the next job. This service manual removes the guesswork — the shim counts, the Loctite call-outs, the relief valve adjustment increments and the service limits are all stated.

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Instant PDF Delivery

Your Bobcat B300 Loader Backhoe Service Manual is delivered as an instant PDF download as soon as payment clears — no shipping, no waiting for a printed book. The 628-page file opens on any device (desktop, tablet, phone) and can be printed or used on the workshop floor alongside the machine. Search, zoom and jump to the section you need at the bench. Buy once, keep the file forever, and use it on every B300 serial 571711001 and above that comes through the shop.