Six Utilev 4-wheel electric counterbalanced forklift trucks, rated 1.5 to 3.5 tonne, are covered by this 56-page Utilev UT15PFE to UT35PFE service manual PDF (OEM ID 76502794). Electrical principle diagrams trace the controller, encoder, parking brake switch, directional switch, temperature sensor and serial port circuits, while hydraulic schematics map the main pump and control valve feeding the lift and tilt cylinders. Drive, steering and brake chapters cover the AC motor, reduction gearbox, drive axle, steer axle and parking brake; the mast section finishes with lift and tilt cylinder rebuilds, and controller fault codes round out the electrical chapter. Set main relief pressure to 15.5 MPa on 1.5 T trucks or 17.4 MPa on 1.8 T, and run M16 lift chain lock nuts to 127-157 N·m. A mast job stalls on one missing torque figure. Your copy is searchable and bookmarked, and the exploded views help you match the right component before you order, so the replacement fits first time.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| Drive System | 5-12 | AC Motor, Reduction Gearbox, Drive Axle |
| Steering System | 13-17 | Steering Column, Steering Axle |
| Brake System | 18-22 | Brake Master Cylinder, Foot Brake, Parking Brake |
| Hydraulic System | 23-27 | Main Pump, Control Valve |
| Lifting System | 28-39 | Assembly Data, Fault, Mast, Lifting Cylinder, Tilting Cylinder, Removal and Adjustment, Disassembly and Assembly of Lifting Cylinder, Disassembly and Installation of Tilt Cylinder |
| Electrical System | 40-47 | Controller, OPS System |
| Electrical Principle Diagram | 48-56 | Controller, Encoder, Parking Brake Switch, Directional Switch, Temperature Sensor, Serial Port |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| UT15PFE |
| Bolt #7 Torque | 137-186 Nm or 101-137 lbf-ft | p. 15 |
| Nut #22 Torque | 78-98 Nm or 58-72 lbf-ft | p. 15 |
| All Models |
| Main Relief Valve Pressure (1.5 T) | 15.5 MPa | p. 27 |
| Main Relief Valve Pressure (1.8 T) | 17.4 MPa | p. 27 |
| Traction and hydraulic fuse ratings | 10A, 225A, 250A, 350A, 425A | p. 48 |
| 1.5T |
| Main Relief Valve Pressure | 15.5 MPa | p. 27 |
| 1.8T |
| Main Relief Valve Pressure | 17.4 MPa | p. 27 |
| 2.0T |
| Main Relief Valve Pressure | 17.5 MPa | p. 27 |
| 2.5T |
| Main Relief Valve Pressure | 17.6 MPa | p. 27 |
| 3.0T |
| Main Relief Valve Pressure | 17.7 MPa | p. 27 |
| 3.5T |
| Main Relief Valve Pressure | 17.8 MPa | p. 27 |
| 1.5t-1.8t |
| Tire inflation pressure | 0.79 MPa | p. 7 |
