1975 Ford 550 Tractor Loader Backhoe Parts Catalog PDF (P/N FTO-17242)

Parts reference for the 1975 Ford 550 Tractor Loader Backhoe, published by Ford Tractor Operations as FTO-17242, July 1975. Its 19 technical sections cover chassis, powertrain, and hydraulic assemblies, with separate U.S. and FTO-E application entries.

Supplied as one 388-page PDF in English.

• Engine and fuel system: Exploded parts breakdowns for engine internals, gasoline carburetion, diesel injection, lubrication, and cooling-system components.

• Transmission and rear axle: Separate manual reversing and torque converter transmission assemblies, with clutch components, differential parts, and differential-lock linkage.

• Hydraulics and steering: Hydraulic pump and control-valve breakdowns, reservoir connections, power steering motor, steering cylinders, and related hoses.

• Loader and backhoe: Attachment assemblies, cylinder repair kits, bucket linkage, and parts for center-pivot, side-shift, and Automatic Dig equipment.

• Electrical components: Harness and component layouts covering starting, charging, lighting, and instrument-panel parts, with U.S. and FTO-E distinctions.

• Chassis and cab: Front axle, wheels, brakes, frame, seats, sheet metal, grille, decals, and cab assembly drawings with associated parts lists.

Suited to mechanics and experienced owners who can match illustrated assemblies to their machine; the entries support parts selection for repair planning.

Parts Identification and Catalog Scope

Exploded-view illustrations link numbered callouts to full part numbers, descriptions, quantities, and application remarks. The gasoline/diesel and U.S./FTO-E distinctions help you select parts for the installed configuration.

Repair-kit listings identify included components and items not serviced separately. The numerical index uses basic numbers without prefixes or suffixes; use the full number in the corresponding parts list for ordering.

This is a parts catalog, with illustrations intended for identification. It does not provide step-by-step reassembly instructions, troubleshooting charts, torque tables, or fluid-capacity specifications.

Engine, Fuel, and Cooling Assemblies

Engine breakdowns reach the cylinder head, crankshaft, valve train, pistons, and oil pump. Applicable listings distinguish standard, oversize, and undersize parts.

Gasoline carburetor and fuel-pump assemblies are separate from diesel equipment. Fuel Injection Pump (Fig. 9E1) shows internal pump components; fuel-filter entries distinguish CAV and Simms assemblies.

Radiator entries separate versions with and without an oil cooler. Water-pump coverage includes the assembly and its repair kit.

Transmission and Rear-Axle Variants

The 6 x 4 manual reversing transmission has its own gear and clutch-control breakdowns. Torque Converter, Oil Distributor, Oil Pump & Related Parts (Fig. 7B2) covers the corresponding converter-transmission assemblies, alongside separate clutch-pack and filter entries.

Rear-axle listings distinguish standard and high-ratio arrangements and handbrake applications. They identify matched gear sets and selective-fit spacers for the differential assembly.

Hydraulic Controls and Power Steering

Loader control coverage distinguishes two-spool and three-spool valves, including Return-to-Dig and Hydro Bucket applications. Pump, filter, reservoir, cooler, and hose entries connect the hydraulic assemblies to their individual parts lists.

Power Steering Motor and Column Assembly (Fig. 3B1) breaks down the steering unit. Separate views cover the steering pump, cylinders, and front axle.

Loader and Backhoe Equipment

Loader sections cover lift arms, bucket linkage, buckets, and tooth kits. Lift Cylinder Assembly (Fig. 18C1) identifies internal cylinder components, with repair-kit contents listed alongside individual parts.

Backhoe coverage separates center-pivot and side-shift equipment, including boom, dipstick, carriage, and cylinder arrangements. Valve Assembly, Sequencing—Automatic Dig (Fig. 19K2) covers the Automatic Dig valve; side-shift carriage entries distinguish mechanical and hydraulic clamps.

For hydraulic repair work, follow the appropriate service manual's precautions for stored pressure and raised loader or backhoe components.

Electrical Layouts and Cab Parts

Electrical illustrations show harnesses and component locations, with separate U.S. and FTO-E starter and alternator assemblies. These are parts-identification views, not electrical circuit schematics.

Cab drawings identify glazing, panels, heater, and wiper components. Seat listings distinguish deluxe and industrial swivel arrangements, while brake illustrations show pedals, linkage, and internal brake parts.

Included Pages and PDF Navigation

The total includes one cover, one general-information page, one master contents page, a 12-page numerical index, and 40 otherwise blank pages carrying headers or borders. PDF text search and embedded bookmarks are unavailable; small illustration callouts may require zooming.