Part of the Hyundai Repair Manuals.
All 558 pages of this Hyundai HL760-9, HL760XTD-9 Service Manual PDF point at one machine: your wheel loader, from torque converter to bucket pin. Inside: full electrical circuit diagrams with component locations and connector charts, hydraulic schematics for the steering and brake circuits, and fault code tables covering machine, engine, and transmission. You also get complete powershift transmission disassembly and assembly steps, clutch pack procedures, and troubleshooting charts for the brake, steering, and work equipment systems. Torque the front axle mounting bolts to 135 kgf·m (976 lbf·ft), then set the main control valve overload relief at 340 kgf/cm2 (4840 psi). A loader stuck in second gear doesn't care what the forum thinks. Bookmarked and keyword-searchable; pull it up on your phone at the machine, find the spec, and get wrenching.
What's Inside This Hyundai HL760-9, HL760XTD-9 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 1-36 | Safety Hints, Specifications, Operational Checkout Record Sheet |
| Engine | 37-45 | Structure and Function, Engine Speed and Stall RPM, Fuel Warmer System |
| Power Train Component Overview | 46 | Power Train Components, Torque Converter, Transmission, Drive Shafts, Axles |
| Torque Converter | 47-49 | Hydraulic Circuit, Torque Multiplication, Hydrodynamic Torque Converter, Stator Freewheel |
| Transmission | 50-63 | Transmission Layout, Installation View, Operation of Transmission, Electro-Hydraulic Shift Control, Gear Selector, Electric Control Unit |
| Fault Codes | 64-96 | Machine Fault Codes, Engine Fault Codes, Transmission Fault Codes, Measuring Resistance |
| Axle | 97-113 | Axle Operation, Differential, Torque Proportioning Differential, Tire and Wheel |
| Operational Checks and Troubleshooting | 114-140 | Transmission Operational Checks, Troubleshooting Charts, Transmission Measuring Points, Disassembly and Assembly |
| Powershift Transmission Disassembly and Assembly | 141-273 | Powershift Transmission, Clutch Disassembly, Clutch Assembly, Drive Shaft, Differential Carrier, Brake Tubes |
| Brake System | 274-320 | Structure and Function, Operational Checks and Troubleshooting, Tests and Adjustments, Disassembly and Assembly |
| Steering System | 321-380 | Structure and Function, Operational Checks and Troubleshooting, Tests and Adjustments, Disassembly and Assembly |
| Work Equipment | 381-472 | Structure and Function, Operational Checks and Troubleshooting, Tests and Adjustments, Disassembly and Assembly |
| Electrical System | 473-558 | Component Location, Electrical Circuit, Monitoring System, Electrical Component Specification, Connectors, Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Main pump capacity (Steering) | 60 cc/rev | p. 28 |
| Main pump capacity (Loader) | 51 cc/rev | p. 28 |
| Main control valve overload relief valve pressure | 340 kgf/cm2 (4840 psi) / 300 kgf/cm2 (4270 psi) | p. 28 |
| Front axle mounting bolt, nut torque | 135 ± 15 kgf·m (976 ± 108 lbf·ft) | p. 30 |
| Rear axle support mounting bolt, nut torque | 308 ± 46.2 kgf·m (2227 ± 334 lbf·ft) | p. 30 |
| Maximum pressure on the EF port | 250 bar | p. 329 |
| Max. tightening torque for M 12x1.5 with O-ring | 2.0 kgf·m (14.5 lbf·ft) | p. 354 |
| Max. tightening torque for M 18x1.5 with O-ring | 5.1 kgf·m (36.9 lbf·ft) | p. 354 |
| Engine Oil Quantity | 18L | p. 27 |
| High Idling Speed | 2230 ± 50 rpm | p. 27 |
| HL760-9 | ||
| Operating Weight | 17900 kg | p. 22 |
| HL760XTD-9 | ||
| Operating Weight | 18700 kg | p. 23 |
Hyundai HL760-9, HL760XTD-9 Common Problems This Manual Covers
Hyundai HL760-9 hydraulic pump noisy, boom slow to lift, bucket weak under load
Check hydraulic oil level and condition before load testing. Install a gauge and test main pump output at 200±5 bar (2900 psi) following the procedure on page 439. Inspect the suction line for pinches and loose clamps, then remove and clean the suction strainer. Replace the pump if pressure still falls short.
Manual Section: Work Equipment Troubleshooting p. 439Steering wheel heavy at low idle, steering response slow at full throttle
Verify low idle at 800 ± 25 rpm and high idle at 2230 ± 50 rpm before condemning the steering valve. Tee a gauge into the circuit and confirm steering pressure reaches the 4.5 MPa maximum listed on page 347. Remove the relief valve, clean dirt from the spool and orifice, and test the pump if pressure stays low.
Manual Section: Steering System Troubleshooting p. 347Engine stuck at idle, no response to accelerator pedal, fault code on monitor
Check the engine fault code list starting on page 64 and record every active code before unplugging anything. Inspect the accelerator pedal sensor connector and CAN-bus wiring for corrosion, loose pins, and chafed insulation. Measure harness resistance per the fault code procedures, then confirm the engine reaches high idle of 2230 ± 50 rpm after repair.
Manual Section: Engine Fault Codes p. 64Brake pedal feels soft, poor stopping power, brakes drag and wheels run hot
Test brake pressure at the test port with a gauge; the specification is 80 ± 5 bar on page 287. Check accumulator priming pressure against the 50 kgf/cm2 spec and replace any accumulator that will not hold charge. Bleed air from the brake lines, then inspect discs for glazing and verify the pedal returns freely.
Manual Section: Brake System Troubleshooting p. 287Front axle noise when turning, differential howl and driveline vibration at travel speed
Drain the axle oil and inspect for metal debris; check the torque proportioning differential for wear using the troubleshooting procedures on page 107. Check driveshaft joints for play, then re-torque the front axle mounting bolts to 135 ± 15 kgf·m (976 ± 108 lbf·ft) from page 29. Refill with clean gear oil and road test.
Manual Section: Differential / Axle Troubleshooting p. 107Frequently Asked Questions
What does error code BA mean on a Hyundai HL760-9?
Error code BA indicates a differential pressure oil filter issue. The cause is typically a polluted oil filter, a broken cable/connector, or a defective differential pressure switch. The remedy is to check the oil filter, check the wiring from the TCU to the differential pressure switch, and measure the resistance of the differential pressure switch. p. 91
What is the engine oil capacity for the Cummins QSB6.7 engine?
The engine oil capacity for the Cummins QSB6.7 engine is 18 liters (4.8 U.S. gallons). p. 27
What is the tightening torque for the engine mounting bolt (bracket, 8EA)?
The tightening torque for the engine mounting bolt (bracket, 8EA) is 10.7 ± 1.6 kgf·m (77.4 ± 11.6 lbf·ft). p. 30
What is the procedure for bleeding the hydraulic brake system?
To bleed the hydraulic brake system, install a frame locking bar and engage the parking brake. Route a clear plastic tube from the bleed screw to a container (A). Push and hold the brake pedal down until the bleeding procedure is complete, then open the bleed screw on the differential and axle assembly until hydraulic oil starts to flow. Repeat this for each bleed screw. p. 311
What is the maximum leakage specification for the steering unit?
The maximum leakage specification for the steering unit is 7.5 liters per minute (2 gpm) at an oil temperature of 45 ± 5°C (113 ± 9°F). p. 348
Is this Hyundai HL760-9 manual a download or a disc?
Immediate download of the complete 558-page searchable Service Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Am I free to print this Hyundai HL760-9 Service Manual?
You can. The PDF is unlocked and carries no copy protection, so print the sections you want and keep the file as your backup.
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