Part of the Hyundai Repair Manuals.
All 502 pages of this Hyundai HL740-7A, HL740XTD-7A, HL740TM-7A service manual PDF focus on one job: getting your wheel loader back to factory spec, whether you run the standard, XTD, or TM version. Inside: factory hydraulic schematics, complete electrical circuit diagrams with connector pinouts, and a dedicated error-code section for tracing monitor faults. You also get step-by-step disassembly and assembly for the power train, brakes, steering, and work equipment, backed by operational checks, troubleshooting, and test procedures for every system. Torque the tire mounting nuts to 70±2.0 kgf·m (506±15 lbf·ft) and set the transmission system pressure valve at 16+2 bar. Your loader is down and every idle hour costs money. Get the factory numbers, not forum guesses. Bookmarked with a full text layer: search any spec, jump straight to the section, and get back to work.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 1-38 | Safety Hints, Specifications, Operational Checkout Record Sheet |
| Engine | 39-47 | Structure and Function, Fuel Warmer System, Engine Speed and Stall RPM |
| Power Train System | 48-229 | Power Train Component Overview and Layout, Center Drive Shaft, Transmission, Torque Converter, Axles, Operational Checks and Troubleshooting, Disassembly and Assembly, Maintenance Standard |
| Brake System | 230-268 | Full Power Hydraulic Brake Outline and Advantages, Air/Hydraulic Brake Actuation, Accumulator, Air Breather, Operational Checks and Troubleshooting, Disassembly and Assembly, Maintenance Standard |
| Steering System | 269-338 | Steering Structure and Operation, 1st and 2nd Pump, Air Breather, Priority and Steering Valves, Operational Checks and Troubleshooting, Disassembly and Assembly, Maintenance Standard |
| Work Equipment | 339-425 | Hydraulic System Outline, Accumulator (Incl. Option), Air Breather, Loader Linkage and Cylinders, Operational Checks and Troubleshooting, Disassembly and Assembly, Maintenance Standard |
| Electrical System | 426-502 | Component Location, Electrical Circuit, Monitoring System, Electrical Component Specification, Connectors, Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Tire mounting nut(20.5-25 16PR, L3) | 70±2.0 kgf·m (506±15 lbf·ft) | p. 32 |
| Maxi fuse rating | 20A | p. 46 |
| Pressure reducing valve | 9 bar | p. 62 |
| System pressure valve | 16+2 bar | p. 62 |
| Clamping torque for M18 x 1.5, 10K screws | 46.9~47.4 kgf·m (339~343 lbf·ft) | p. 203 |
| Battery relay rated load | 24V 100A(Continuity) 1000A(30seconds) | p. 467 |
| Engine Oil Quantity | 16 L | p. 29 |
| Main Relief Valve Set Pressure | 220 kgf/cm2 | p. 30 |
| Engine High Idling Speed | 2230 +/- 50 rpm | p. 29 |
| Engine Low Idling Speed | 950 +/- 25 rpm | p. 29 |
| Brake Accumulator Charging Pressure | 50 kgf/cm2 | p. 247 |
| Main Control Valve Relief Pressure | 220 kgf/cm2 | p. 393 |
