Hyundai HW140 Wheel Excavator service manual
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About the Hyundai Construction Equipment Wheel Excavators
Hyundai factory service manuals for wheel excavators: 45 models, from the R55W-3 to the HW270A MH material handler.
Hyundai HW140 Wheel Excavator - Factory Service Manual
This is Hyundai's factory service manual for the HW140 wheel excavator, as a PDF. It runs to 972 pages in 9 sections: the same workshop manual Hyundai dealers use.
It covers the Hyundai HW140 excavator.
The HW140 at a glance
These figures are taken from the specifications section of this manual.
| Operating weight | 13880 kg (30600 lb) |
| Bucket capacity | 0.58 m³ (0.76 yd³) heaped |
| Max. digging depth | 4650 mm (15' 3") |
About the Hyundai HW140 excavator
On an excavator most repair work is hydraulic or electronic: pump and valve settings, swing and travel motors, the machine controller and its sensors. The manufacturer's manual gives the pressures, the test procedures and the torque values for that work.
What is inside, section by section
Its chapters cover axles and final drives, brakes, the hydraulic system, the electrical system, swing and travel, the work equipment, specifications, troubleshooting and fault codes and maintenance.
- General (41 pages) - safety hints, the machine's specifications and tightening torques.
- Structure and function (88 pages) - how the main components work: pumps, valves, motors and cylinders.
- Hydraulic system (37 pages) - the hydraulic circuits and how oil flows in each operation.
- Electrical system (91 pages) - component locations, wiring circuits, electrical specifications and connectors.
- Mechatronics system (147 pages) - the electronic control systems, monitoring and self-diagnostics.
- Troubleshooting (141 pages) - fault-finding procedures.
- Maintenance standard (29 pages) - performance tests and wear limits for the major components.
- Disassembly and assembly (382 pages) - step-by-step removal, overhaul and installation of the major components.
- Component mounting torque (16 pages) - bolt torques for every component mounting.
What you can do with it
- Find the cause of a fault before replacing parts
- Remove, overhaul and refit major components
- Set pressures, clearances and adjustments to the factory values
- Use the right torque values and tightening sequences
- Read the wiring and hydraulic diagrams when tracing a problem
Who uses it
Owners and mechanics who diagnose hydraulic or electrical faults on the HW140, service its travel drive, axles and brakes, or overhaul its pump, valves and swing device.
Make sure it is your model
This manual is for the HW140. The HW140A has a separate manual. Check the model plate on your machine before ordering.
Questions about this manual
Which machines does this manual cover?
The Hyundai HW140. If your machine has a different model number, look for the manual for that model.
Is it the original manufacturer manual?
Yes. It is Hyundai's own service manual, not a third-party reprint or a summary.
How many pages does it have?
972 pages, in 9 parts listed above.
How do I receive it?
It is a PDF. After payment it is available to download from your account, and you can read it on a computer, tablet or phone or print the pages you need. No printed book is shipped.
