Bobcat 751 Skid-Steer Loader Service Manual 6900975 PDF – S/N 515730001 & 515620001 Above

Bobcat 751 Skid-Steer Loader Service Manual 6900975 PDF

The Bobcat 751 Skid-Steer Loader Service Manual 6900975 PDF – S/N 515730001 & 515620001 Above is a comprehensive 563-page service reference for the Bobcat 751 loader. It is designed for loader mechanics and covers servicing, adjustment, testing, troubleshooting, removal, installation, disassembly and assembly across the machine’s major systems. Coverage includes the Bobcat Interlock Control System (BICS), hydraulic and hydrostatic systems, drive components, main frame, electrical analysis, engine service, heater system and detailed specifications.

File Details

• Manual type: Service Manual
• Brand / model: Bobcat 751 Loader
• Document number: 6900975 (2-06)
• Serial coverage: S/N 515730001 & Above; S/N 515620001 & Above
• Language: English
• Page count: 563 pages
• File format: PDF
• Publication marking: Bobcat Company 2006

Serial Number Coverage and Service Scope

This Bobcat 751 service manual is specifically marked for loaders in the two serial-number sequences shown on the cover. The manual also stresses that serial-number identification matters because early and later machines can use different parts or require different service procedures. Before using a procedure, match the machine to the serial coverage and identify the loader correctly.

The foreword describes the manual as a mechanic’s servicing and adjustment reference for the loader and its component parts and systems. That scope is reflected throughout the book: routine service information sits alongside system troubleshooting, component checks, pressure and electrical tests, removal and installation procedures, internal disassembly and assembly, adjustment data, torque references and machine specifications.

Chapters Covered

• Safety & Maintenance
  • BICS inspection and functional checks
  • Lift arm support, lifting and blocking, towing and transporting
  • Fuel, engine oil, cooling, air cleaner and hydraulic/hydrostatic service
  • Bob-Tach, operator cab, seat bar restraint and tire maintenance
  • Service schedule and lubrication procedures
• Hydraulic System
  • Hydraulic system information and troubleshooting
  • Lift and tilt cylinders
  • Main relief valve and BICS valve
  • Foot-control and Advanced Hand Control hydraulic control valves
  • Hydraulic pump, filter housing and fluid reservoir
  • Bucket position valve, lift arm by-pass valve and front auxiliary pressure relief block
• Hydrostatic System
  • Charge pressure checks and adjustment
  • Hydrostatic motors and hydrostatic pump service
  • Drive belt, oil cooler and control panel
  • Steering linkage, neutral adjustment and Advanced Hand Control steering
  • Hydrostatic troubleshooting and replenishing valve function
• Drive System
  • Brake components and pedal service
  • Chaincase inspection, oil service and cover removal
  • Axle seals, sprockets, bearings and drive chain procedures
• Main Frame
  • Bob-Tach removal, lever, wedge and stop service
  • Fuel tank and fuel level sender
  • Lift arm removal and installation
  • Operator cab and operator seat service
  • Rear door, rear grill and seat bar components
• Electrical System & Analysis
  • Advanced Hand Control systems and troubleshooting
  • Alternator and battery testing and service
  • BICS system inspection, circuit checks and troubleshooting
  • Bobcat controller, diagnostics and service codes
  • Electrical system information and wiring schematics
  • Instrument panels, lights, seat bar sensor, starter and traction lock
• Engine Service
  • Air cleaner, cooling fan, radiator and muffler
  • Engine removal and installation
  • Engine components, compression checks and fuel-system testing
  • Fuel injection pump, injectors, glow plugs and valve clearance
  • Flywheel and housing service
  • Engine reconditioning, including cylinder head, pistons, connecting rods, crankshaft, camshaft, timing gears, oil pump and water pump
  • Engine troubleshooting
• Heater
  • Heater components and regular maintenance
  • Heater unit, coil, fan and valve service
  • Electrical checks and heater-system troubleshooting
• Specifications
  • Loader performance, controls and machine data
  • Engine and hydraulic specifications
  • Electrical, drive-system and capacity data
  • Engine component service specifications
  • Loader torque and general bolt torque specifications
  • Hydraulic connection and hydraulic fluid specifications
  • U.S. and metric conversions

Taken together, these chapters give a technician a system-by-system path from inspection and diagnosis to component repair and reassembly. The manual does not stop at overview information: many sections identify test equipment, special tools, test points, pressure values, tightening torques, electrical resistance checks, adjustment procedures and the sequence required to remove and reinstall assemblies.

Hydraulic, Hydrostatic and Drive Repair Coverage

The hydraulic material is one of the deepest parts of this Bobcat 751 Skid-Steer Loader Service Manual 6900975. It covers lift and tilt cylinders, the BICS valve, main and port relief valves, bucket position valve, control pedals, hydraulic control valves for foot control and AHC configurations, the hydraulic pump, reservoir, filters and auxiliary pressure components. Cylinder sections include checking, removal, internal disassembly, seal installation and assembly procedures. Hydraulic control-valve sections go into spools, check valves, solenoids, anti-cavitation valves, relief valves and cleaning/inspection steps.

A hydraulic/hydrostatic schematic is included, along with pressure and flow information used during diagnosis. The manual gives a main system relief specification of 2500-2600 PSI and includes procedures for checking relief pressure and hydraulic pump output. Hydrostatic coverage extends to charge pressure, hydrostatic motors, the hydrostatic pump, steering adjustment, drive belt service and troubleshooting. The drive-system chapter then continues into brakes, chaincase service, axles, sprockets, bearings and chains.

Electrical Controls, BICS and Diagnostics

Electrical coverage is built around real service checks rather than only component location. The manual includes wiring schematics, fuse and relay locations, solenoid tests, service codes and troubleshooting charts. BICS procedures cover controller inspection, auxiliary-hydraulic deactivation, seat bar sensing, traction lock operation and lift arm by-pass control. Separate material addresses Advanced Hand Control systems, including controller and actuator work, handle components and troubleshooting.

The alternator section includes output and regulator tests plus internal checks such as rectifier, rotor and stator testing. Battery service, starter testing and repair, instrument panels, lights, seat bar sensor and traction lock are also covered. For electrical or electro-hydraulic faults on a covered Bobcat 751, these sections help narrow a symptom to a circuit, controller, sensor, solenoid or mechanical component before parts are removed.

Engine Service and Specification Data

The loader specification section identifies the engine as Kubota/V1903-B, a four-cylinder diesel with liquid cooling. The manual provides engine service procedures for compression testing, fuel injection components, glow plugs, valve clearance, injection timing, cooling components and complete engine removal. Its reconditioning material reaches into cylinder-head work, valve and valve-seat service, pistons and connecting rods, crankshaft and bearings, camshaft and timing gears, oil pump and water pump procedures.

Service data is consolidated in the specification chapters so repair procedures can be checked against the required values. The book includes loader performance figures, hydraulic pressures and flow data, cylinder dimensions, electrical information, fluid capacities, engine specifications, torque data and hydraulic fitting specifications. Maintenance sections also provide service intervals for engine oil and filters, fuel filtration, hydraulic/hydrostatic filters and fluid, chaincase fluid, lubrication points, tires and safety-system inspections.

Get the Bobcat 751 Service Information You Need

The Bobcat 751 Skid-Steer Loader Service Manual 6900975 PDF – S/N 515730001 & 515620001 Above supports detailed maintenance, diagnosis, adjustment and repair work on covered 751 loaders, from scheduled service and BICS checks to hydraulic component repair, hydrostatic diagnosis, electrical testing and engine reconditioning. Using the specified procedures, test values, torque data and system diagrams matters when a repair needs to be completed in the correct sequence and checked against the machine’s service information.

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