Komatsu fit the full service coverage for its FG and FD forklift trucks, twenty-four gasoline and diesel variants from the FG20-8 and FD25-8 through the FD30H-8, into the 240 pages of Shop Manual SM029. Wiring diagrams trace every circuit from the key switch and meters back to the fuel tank unit, while hydraulic schematics lay out the pump, control valve, and lift and tilt cylinder plumbing. Power train work takes up roughly a quarter of the book: clutch, transmission, torque converter, front axle, and differential, backed by troubleshooting trees for engine, steering, and brake complaints. Mic your clutch disc against the 8.4 mm new thickness, torque front hub nuts to 294 to 490 Nm, and change the hydraulic line filter every 1200 hours or six months. A clutch job stalls while you hunt one repair limit. Bookmarks and a real text layer put you on the right page in seconds.
Complete the set for your FG20-FD30 Series
What's Inside This Komatsu FG20-FD30 Series Manual
| System | Pages | Key Topics |
|---|
| Foreward | 5-10 | General Specifications, Checks and Adjustments, General Disassembly and Assembly, Disassembly and Assembly of Components, Electrical System |
| General and Specifications | 11-32 | General Locations, Specifications, Overall Dimensions, Precautions for Maintenance |
| Removal and Installation of Units | 33-64 | Flow Chart, Mast Removal and Installation, Engine Removal and Installation |
| Power Train | 65-124 | Clutch, Transmission, Torque Converter, Front Axle, Differential, Front and Rear Wheels |
| Steering System | 125-144 | Power Steering Pump, Steering Gear Box, Power Steering Cylinder, Rear Axle |
| Brake System | 145-164 | Master Cylinder, Brake Valve, Accumulator, Wheel Brake, Air Bleeding, Parking Brake |
| Hydraulic System | 165-174 | Hydraulic Pump, Control Valve, Lift Cylinder, Tilt Cylinder |
| Mast and Related Parts | 175-179 | Mast Structure, Fingerboard, Lift Chain |
| Electrical | 180-188 | Buttons, Meters, Lamps, Switches, Horn, Fuel Tank Unit, Wiring Diagrams |
| Troubleshooting | 189-202 | Engine Troubleshooting, Steering System Troubleshooting, Brake System Troubleshooting |
| Testing and Adjusting | 203-218 | Engine Testing and Adjusting, Drive System Testing and Adjusting, Brake System Testing and Adjusting |
| Appendix | 219-240 | Change in Structure of Radiator Mount, Improved Tilt Valve, Quick-On Start System |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| All Models |
| Clutch disc outside diameter | 275 mm (11 in) | p. 68 |
| Clutch disc thickness | 8.4 mm (0.33 in) | p. 68 |
| Front wheel hub nut tightening torque | 294 - 490 Nm | p. 213 |
| Rear wheel hub nut tightening torque | 196 - 245 Nm | p. 213 |
| Hydraulic line filter replacement interval | every 6 months or 1200 hours | p. 218 |
| H20 |
| Engine Oil Capacity (H20) | 4.2L | p. 208 |
| C240 |
| Engine Oil Capacity (C240) | 3.8L | p. 208 |
| H30 |
| Engine Oil Capacity (H30) | 4.7L | p. 208 |
| 4D95L |
| Engine Oil Capacity (4D95L) | 7L | p. 208 |
| 4D95S |
| Engine Oil Capacity (4D95S) | 5.8L | p. 208 |
| T1 Specification |
| Transmission Oil Capacity (Torqflow) | 8.5L | p. 98 |
| T2 Specification |
| Transmission Oil Capacity (Torqflow) | 10.5L | p. 99 |
