Only the factory book settles the numbers for Utilev's UT20 to UT35 internal combustion counterbalanced forklifts, and OEM document 76002089 is that book: a 90-page Utilev service manual PDF covering both P and C variants, UT25P included. Electrical schematics trace the truck's circuits, while the hydraulic schematic follows oil from the main pump through the control valve to the lift and tilt cylinders. Fault diagnosis tables cover the drive axle, steering, brakes and lifting system, and the transmission chapter explains the torque converter, two-way clutch and inching valve before you split the housing. Check main oil pressure at 1.1 to 1.4 MPa (159 to 203 psi) and clutch pressure at 0.3 MPa, then set Mazda 2.2L valve clearance to 0.45 mm. A half-torn-down transmission sits for want of one pressure figure. Print the sections your job calls for and let them collect grease on the bench; the bookmarked PDF stays clean for keyword searches.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| Powertrain | 6-11 | Engines (Mazda 2.2L, PSI 2.4L, 4TNE92/4TNE98 Diesel) |
| Transmission and Torque Converter | 12-25 | Data, Summary: Transmission Overview |
| Drive Axle | 26-31 | Data, Fault Diagnoses and Corrections (Drive Axle Components, Assembly and Disassembly of Drive Axle, Axle Shaft and Wheel Hub, Bearing Adjusting) |
| Steering Axle | 32-35 | Fault Diagnoses Corrections (Steering Axle, Steering Kingpin and Steering Spindle, Wheel Bearing Adjustment) |
| Steering System | 36-39 | Data, Trouble Shooting (Summary, Install Steering System) |
| Brake System | 40-46 | Fault Diagnoses and Corrections, Summary |
| Hydraulic System | 47-56 | Data, Fault Diagnoses and Corrections (Main Pump, Hydraulic Control Valve, Hydraulic Schematic) |
| Lifting System | 57-72 | Assemble Data |
| Electrical System | 73-90 | Schematics |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Mazda 2.2L Oil Volume Min./Max | 7.2/9.2 L | p. 7 |
| PSI 2.4L Oil Volume Min./Max | 4.7 L (5 Qts) | p. 8 |
| Clutch Pressure Measurement Normal Pressure | 0.3 MPa | p. 16 |
| Main oil pressure measurement Normal Pressure | 1.1-1.4 MPa (159-203 psi) | p. 16 |
| Mazda 2.2L Valve Clearance | 0.45 mm | p. 7 |
| 4TNE92/4TNE98 Diesel Valve Clearance | 0.45 mm | p. 9 |
| Transmission Oil Capability | 7 L | p. 12 |
| Drive Axle Wheel Nuts Tightening Torque | 363-490 N·m | p. 27 |
| Steering Axle Kingpin Axial Play | Less than 0.20 mm | p. 32 |
| Steering Axle Wheel Hub Bearing Axial Play | Less than 0.10 mm | p. 32 |
| Lift Chain Deflection | 25-30 mm | p. 57 |
| Lift Cylinder Bolt (top) Tightening Torque | 76-107 N·m | p. 57 |
