Torque converter, transmission, steering gear box, hydraulic circuit and brake system are taken apart and explained in this 179-page Komatsu FG50-5, FG60-5, FG70-5 and FD50-5 through FD80H-5 shop manual PDF (SM024), written for twelve FG and FD forklift truck variants. Wiring diagrams trace the truck's electrical circuits, while the hydraulic schematics show oil routing from the pump through the control valve to the lift and tilt cylinders. Disassembly and assembly fills the largest share of the book, with torque tables set inside the procedures, and the maintenance guide lays out your periodic service table. Set the work equipment circuit to 180 kg/cm², and fill the differential to 11.5 L, or 13.5 L on the FD60H-5, FD70H-5 and FD80H-5. A guessed relief pressure under a raised load is dangerous. Bookmarked by section and text-searchable, your copy finds the right figure fast and has the truck lifting again by the next shift.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| General and Specifications | 7-26 | Overall Dimensions and Specifications |
| Removal and Installation | 27-45 | General Locations |
| Torque Converter | 48-53 | |
| Transmission | 54-87 | |
| Steering Gear Box | 88-117 | |
| Structure and Function | 118-140 | Hydraulic Circuit, Brake System |
| Maintenance and Inspection Guide | 141-168 | Periodic Maintenance, Maintenance Table |
| Conversion Table | 169-179 | Length Conversion, Volume Conversion, Mass Conversion, Pressure Conversion, Torque Conversion, Temperature Conversion |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| All Models |
| Differential oil capacity | 11.5 L | p. 159 |
| Differential oil capacity (FD60H/70H/80H) | 13.5 L | p. 159 |
| Work equipment circuit hydraulic pressure | 180 kg/cm² | p. 112 |
| Steering wheel play | 5 mm (Engine stopped), 20-30 mm (Engine idling) | p. 146 |
| FD50E-5 |
| FD50E-5 Engine Oil Capacity | 120 L | p. 9 |
| FD60E-5 |
| FD60E-5 Engine Oil Capacity | 120 L | p. 11 |
| FD70E-5 |
| FD70E-5 Engine Oil Capacity | 120 L | p. 13 |
| FG50-5 |
| FG50-5 Fuel Tank Capacity | 120 L | p. 15 |
| FD50-5 |
| FD50-5 Fuel Tank Capacity | 120 L | p. 15 |
| FD60H-5 |
| FD60H-5 Fuel Tank Capacity | 120 L | p. 21 |
| FD70H-5 |
| FD70H-5 Fuel Tank Capacity | 120 L | p. 23 |
| FD80H-5 |
| FD80H-5 Fuel Tank Capacity | 120 L | p. 25 |
