An OPS or park brake alarm fault on the truck safety system is one of the jobs this Hyster H2.5UT service manual PDF walks you through: 110 pages under OEM ID 4259276, covering the UT series of internal combustion forklift trucks in four variants, H2.0UT through H3.5UT. Electrical schematics lay out the truck's wiring, and hydraulic schematics map the main oil circuit, backed by sections on the control valve, main relief and bypass valves, tilt auto-lock valve, and lift and tilt cylinders. Brake coverage runs from wheel brake teardown and inspection to reassembly and a test of the automatic clearance regulator. Check the radiator cap against its 88.3 kPa (12.8 psi) rating, and schedule fuel filter changes every 2400 hours or 12 months on the hour meter. When your job is tracing oil through the torque converter, hydraulic clutch and inching valve, the transmission oil circuit is drawn out here. The bookmarked, searchable file goes wherever your truck is.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| Forklift Truck Main Parts | 7 | |
| Forklift Main Technical Parameters | 8-17 | Main Technical Parameters |
| Power System | 18-32 | Engine System (Engine Overview, Inspection, Engine Adjustment) |
| Hydraulic Transmission Case and Torque Converter | 33-40 | Overview, Torque Converter, Hydraulic Clutch, Control Valve, Safety Valve, And Inching Valve, Transmission Case, Hydraulic Oil Pump |
| Drive Axle | 41 | Overview, Maintenance of Drive Axle |
| Steering System | 42-47 | Overview, Hydraulic Steering Gear Assembly, Steering Cylinder, Reassembly of Steering System |
| Brake System | 48-61 | Overview, Master Cylinder, Wheel Brake, Automatic Clearance Regulator, Parking Brake, Brake Pedal |
| Hydraulic System | 62-74 | Main Pump, Control Valve and Bypass Valve (Operation of Spool Valve, Neutral Position, Spool Valve), Main Relief Valve and Bypass Valve, Tilt Auto-Lock Valve |
| Lifting System | 75-85 | Safety Procedures When Working Near Mast, Inside and Outside Masts, Bracket, Adjust |
| Electrical System | 86-101 | Overview, Electrical Box, Battery, Electrical Schematics, Troubleshoot Electrical System (Troubleshoot Truck Safety System) |
| Drive, Operation, and Routine Maintenance of Forklift Truck | 102 | Transporting the Forklift Truck, Towing, Long-Term Storage of Forklift Truck, Maintenance Procedures Prior to Operation |
| Cooling System | 103-105 | Radiator, Coolant, Anti-Freeze Fluid, Radiator Cap |
| Display | 106-110 | Overview, Remove, Install |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| H3.0UT, H3.5UT |
| Nissan K25 Starter Output Power | 1.2 kW (1.61 hp) | p. 19 |
| PSI 4G64-2.4L Starter Output Power | 1.7 kW (2.28 hp) | p. 19 |
| Brake Shoe Size (3-3.5T) | 348x76x8 mm (13.7x2.99x0.31 in.) | p. 48 |
| Fuel Tank Capacity (3-3.5T) | 60 liter | p. 27 |
| All Models |
| Fuel Filter (Nissan/Mitsubishi) Replacement Interval | 2400 hours or 12 months | p. 106 |
| Air Filter Replacement Interval | 1200 hours or 6 months | p. 106 |
| Pressure of Heat Radiator Cover | 88.3 kPa (12.8 psi) | p. 25 |
| Hydraulic Transmission Oil Capacity | 8 liter | p. 33 |
| Drive Axle Wheel Hub Rotating Torque | 9.8-29.4 N·m | p. 41 |
| Drive Axle Half Shaft Mounting Nut Torque | 96-111 N·m | p. 41 |
| H2.0UT, H2.5UT |
| Brake Shoe Size (2-2.5T) | 324x60x7 mm (12.8x2.4x0.28 in.) | p. 48 |
| Fuel Tank Capacity (2-2.5T) | 52 liter | p. 27 |
