Part of the Hyundai Repair Manuals.
All 500 pages of this Hyundai HL740-7, HL740TM-7 Service Manual PDF focus on one machine: the HL740 series wheel loader, from torque converter to bucket pin. You get factory wiring diagrams for the complete electrical system, hydraulic circuits for the brake, steering, and work equipment systems, plus error code tables and a dedicated power train troubleshooting section. Open the disassembly chapters and follow step-by-step teardowns of the transmission, axles, main pump, and remote control valve. Torque the radiator mounting bolts to 29.7 kgf·m, set the pressure reducing valve at 9 bar, and confirm speed sensor input voltage runs between 0.45 and 7.00 volts. Chasing a transmission fault on forum guesses gets expensive fast. This PDF is bookmarked by system and text-searchable; pull it up on any device in the shop and jump straight to the spec you need.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 11-38 | Safety Hints, Specifications, Operational Checkout Record Sheet |
| Engine | 39-43 | Structure and Function, System Diagrams |
| Power Train System | 44-227 | Power Train Component Overview, Torque Converter, Transmission, Axle |
| Brake System | 228-266 | Structure and Function, Hydraulic Circuit, Brake Pump, Brake Valve |
| Steering System | 267-336 | Structure and Function, Hydraulic Circuit, Steering Unit, Priority Valve, Steering Cylinder |
| Work Equipment | 337-425 | Hydraulic System Outline, Hydraulic Circuit, Main Pump Operation, Remote Control Valve, Main Control Valve |
| Electrical System | 426-500 | Component Location, Electrical Circuit, Monitoring System, Electrical Component Specification, Connectors, Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Radiator mounting bolt | 29.7±4.5 kgf·m | p. 33 |
| Pressure reducing valve | 9 bar | p. 59 |
| System pressure valve | 16+2 bar | p. 59 |
| Engine speed input voltage threshold | 0.45V to 7.00V | p. 74 |
| Turbine speed input voltage threshold | 0.45V to 7.00V | p. 75 |
| Clutch cut-off pressure switch rated pressure | 25kgf/cm2 | p. 121 |
| Minimum thickness of brake discs | 4.5mm | p. 189 |
| Body bore cut-in depth | 0.15mm (0.006") | p. 263 |
| Tightening torque for bolt(23) | 4.8kgf·m (35lbf·ft) | p. 265 |
| Engine Oil Quantity | 16 L | p. 29 |
| Main Relief Valve Pressure | 220 kgf/cm2 | p. 30 |
| Steering Relief Pressure | 20.5-21.5 MPa | p. 292 |
