This 712-page Ford 555A, 555B, 655A Service Manual (OEM #40055540A) covers every system on your 1984 Tractor-Loader-Backhoe, from the diesel engine and rotary or in-line fuel injection pumps down to the last cotter pin in the front axle assembly. You get wiring diagrams for the full electrical system, hydraulic schematics covering structural members, cylinders, control valves and the hydraulic pump, plus a dedicated troubleshooting section for when the backhoe won't hold pressure. Set nozzle opening pressure between 2913 and 2987 psi (194-199 bar), and swap in vendor number 5222304 injectors on your 555A or 555B. No more guessing at clutch specs or chasing a hydraulic leak with a shop rag and hope. Bookmarked by system, so you jump straight from Engine to Steering without hunting through 712 pages on your phone in the shop.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine Systems | 13-70 | Diesel Engine, Cooling System, Trouble Shooting, Specifications, Special Tools |
| Fuel Systems | 71-114 | Rotary Type Fuel Injection Pump, In-Line Type Fuel Injection Pump, Injectors, Air Cleaner, Trouble Shooting, Specifications |
| Electrical System | 115-180 | Wiring, Lights and Controls, Battery, Starting Motor, Charging Systems, Trouble Shooting, Specifications |
| Clutch | 181-196 | Clutch Overhaul, Clutch Linkage, Clutch Pilot Bearing, Clutch Release Bearing, Clutch Release Shaft, Specifications |
| Transmission Systems | 197-320 | 6x4 Manual Reversing Transmission, 4x4 Standard Gear Power Reversing Transmission, 4x4 Torque Converter Drive Synchromesh Transmission, Gearshift Cover Overhaul, Front End Overhaul |
| Cab, Heating and Air Conditioning | 321-388 | Cab Removal and Installation, Heater Core and Blower, Air Conditioning Compressor and Condenser, Refrigerant Charging, Controls and Ducting, Volume 2 Contents |
| Rear Axle and Brakes | 389-422 | Rear Axle Overhaul, Planetary Reduction Gear, Rear Wheel Brake, Differential, Handbrake, Specifications |
| Hydraulic System | 423-588 | Structural Members, Cylinders, Control Valves, Hydraulic Pump, Trouble Shooting, Pressure Tests |
| Steering System | 589-618 | Hydrostatic Steering System, Power Steering Pump, Steering Column Shaft, Control Valve, Steering Motor, Steering Cylinder |
| Front Axle | 619-684 | Front Axle Assembly, Toe-In Adjustment, Spindle Wheel Removal, Differential Assembly, Transfer Gear Assembly, Axle Shafts |
| Wheels and Tires | 685-690 | Tire Inflation, Wheel Nut Torque, Liquid Ballast, Tire Service |
| Separating the Unit | 691-712 | Engine Removal, Fuel Tank Removal, Transmission Disconnect, Rear Axle Removal, Torque Converter, Subframe to Front Support |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Nozzle Opening Pressure | 2819-2887 psi. (194-199 bar) | p. 112 |
| Fuel Filter Change Interval | 600 hrs. | p. 111 |
| Clutch Disc Diameter | 13 in. (330 mm) | p. 195 |
| Spring Length Light Gr./Lavender | 1.69 in. (42.93 mm) 105 lb. (47.6 Kg) Load | p. 195 |
| Crowd Circuit Relief Reset Pressure (raise) | 3550 (245) | p. 558 |
| Crowd Circuit Relief Reset Pressure (lower) | 2650 (183) | p. 558 |
| Fuel Tank Capacity | 24 gal. (91 liters) | p. 111 |
| Refrigerant Charge | 4.0-4.5 lbs. (1.81-2.05 kg) | p. 381 |
| Steering Wheel Turns Lock to Lock | 3.7 | p. 618 |
| Front Axle Toe-in | 0-0.5 in. (0-13 mm) | p. 651 |
| 555 A and B | ||
| Injector Vendor Number | 5222304 | p. 112 |
| 555A, 555B, 655A | ||
| Engine Oil Capacity | 6.0 U.S. qts. (3-cylinder), 8.0 U.S. qts. (4-cylinder) | p. 67 |












