Utilev's 109-page service manual (OEM ID 76000364) takes the UT series internal combustion counterbalanced forklift apart system by system, across the UT15P to UT35P models. In this Utilev service manual PDF, electrical schematics trace the fuse, lighting and instrument circuits, and hydraulic diagrams map oil from the main pump through the control valve to the lift and tilt cylinders. The torque converter, two-way clutch, charging pump and inching valve each get their own section, and trouble diagnosis tables for the axles, steering, brakes and hydraulics walk you from symptom to cause on trucks running K21, K25 dual fuel or diesel engines. Fill the transmission with 7 L, set clutch pressure at 1.1-1.4 MPa, then torque UT20P to UT35P wheel nuts to 363-490 N·m. Guess that pressure and you pay for a burnt clutch pack and a second teardown. Bookmarks and a live text layer put the inching valve page in front of you in seconds.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| Power System | 6-17 | Engines (K21, K25 Dual Fuel, 4TNE92/ 4TNV94/ 4TNE98 Diesel, NC485BPG/A490BPG Diesel) |
| Transmission | 18-32 | Data, Summary, Principles of Operation, Torque Converter, Two-Way Clutch, Charging Pump, Inching Valve, Transmission Housing |
| Drive Axle | 33-38 | Date, Trouble Diagnoses and Corrections, Drive Axle Components, Assembly and Disassembly of Drive Axle, Axle Shaft and Wheel Hub, Bearing Adjusting |
| Steering Axle | 39-42 | Trouble Diagnoses Corrections, Kingpin and Steering Spindle, Wheel Bearing Adjustment |
| Steering System | 43-46 | Data, Trouble Diagnoses, Summary, Install Steering System |
| Brake System | 47-54 | Brake System Trouble Diagnoses, Master Cylinder, Brake Assembly |
| Hydraulic System | 55-66 | Data, Trouble Diagnoses and Corrections, Main Pump, Control Valve |
| Lifting System | 67-83 | Assemble Data, Summary, Removal and Adjustment, Disassembly and Assembly of Lifting Jack, Disassembly and Installation of Tilt Cylinder, Noticing Proceeding of Debugging |
| Electrical System | 84-109 | Electrical System Inspection, Fuse and Lighting System, Instrument and Sensor Removal |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| UT15P, UT18P |
| Wheel Nuts (#4) Torque (1.5t-1.8t) | 157-176 N·m | p. 34 |
| UT20P, UT25P, UT30P, UT35P |
| Wheel Nuts (#4) Torque (2t-3.5t) | 363-490 N·m | p. 34 |
| All Models |
| Transmission Oil Capability | 7 L | p. 18 |
| Hydrodynamic Power Clutch Adjusted Pressure | 1.1-1.4 MPa | p. 18 |
| Residual pressure in brake lines and wheel cylinders | 0.04 MPa | p. 48 |
| Main pump output pressure (Rated/Max.) | 20/25 MPa | p. 55 |
| Hydraulic control valve rated flow rate | 65 L/Min | p. 56 |
| Mast To Lift Roller Assembly Clearance | 0.1-0.8 mm | p. 67 |
| Mast To Lift Roller Repair Clearance | 0.2-1 mm | p. 67 |
| Clearance of back up metal and mast steel | 0.1-0.8mm | p. 78 |
| 3.0t-3.5t |
| Lift roller-to-mast clearance dimension L (3.0t-3.5t) | 368mm, 388mm, 418mm, 443mm | p. 77 |
| 2.0t-2.5t |
| Lift roller-to-mast clearance dimension L (2.0t-2.5t) | 328mm, 348mm, 378mm, 403mm | p. 77 |
