In-Depth Ford 550/555 Backhoe Loader Repair & Maintenance Manual - 1975-1980; 4/78-Present

Ford 550 and 555 Tractor-Loader-Backhoe Service Manual: Complete Workshop Repair & Overhaul Guide (1975-1981)

Keep your equipment in peak operating condition with this professional-grade service manual for the Ford 550 and 555 Tractor-Loader-Backhoe. This manual is the definitive resource for mechanics, fleet owners, and owner-operators who require deep technical insights and step-by-step guidance for maintaining and overhauling these classic Ford workhorses.

This manual is specifically structured to cover the evolution of the series, distinguishing between the Model 550 (produced from 1975 through 03/1978) and the Model 555 (produced from 04/1978 and later). Whether you are performing a routine oil change or a complete engine rebuild, this guide provides the factory-spec data required to get the job done right the first time.

Comprehensive Model Coverage

This manual provides specialized service instructions identified by tractor model number and specific production dates:

• Ford 550 Tractor-Loader-Backhoe: Units produced 1975 through March 1978.
• Ford 555 Tractor-Loader-Backhoe: Units produced April 1978 through 1981 (and later).

Professional Repair & Maintenance Insight

Spanning 11 detailed parts, this manual moves beyond basic maintenance into full-scale component overhaul. Each chapter includes general operating principles, detailed inspection protocols, and comprehensive troubleshooting sections to minimize downtime.

Key Technical Sections Include:

• Engine Systems: Complete overhaul procedures, cooling system diagnostics, and precision specifications for the Ford diesel power plants.
• Hydraulic Systems: In-depth coverage of hydraulic pumps, control valves, and cylinders. Includes critical pressure testing data and seal replacement guides.
• Power Steering & Driveline: Detailed teardowns of the power steering pump, reservoir assemblies, and drive gear sequences (including specific torque values like 19 ft-lbs for commutator installations).
• Transmission & Drive: Maintenance and repair of the heavy-duty drivetrain components designed for loader and backhoe stress.
• Electrical & Troubleshooting: Wiring schematics, starter motor service, and battery maintenance to ensure reliable ignition in all climates.

Identification and Serial Numbers

To ensure you are using the correct specifications for your specific machine, this manual includes a "Key to Production Date Codes." This allows users to identify their unit’s exact manufacture date and applicable parts variations based on the serial number plates found on the chassis and engine block.

Designed for the Workshop

• Clear Visuals: Hundreds of high-quality diagrams, exploded views, and "Figure" references (such as Bolt Torque Sequences and Component Identity charts) provide a visual roadmap for complex assemblies.
• Mobile-Friendly Layout: Organized with clear headings and concise bullet points, making it easy to reference torque specs or fluid capacities directly on your smartphone or tablet while at the machine.
• Safety First: Includes a dedicated focus on safety precautions, including hydraulic pressure release protocols and proper use of special service tools.

This Service Manual is more than just a book; it is a vital piece of equipment for anyone serious about the longevity and performance of their Ford 550 or 555 Tractor-Loader-Backhoe. Save time and avoid costly mistakes by following the original factory service procedures.