Hyundai R55W-9A Wheel Excavator service manual

Hyundai R55W-9A Wheel Excavator - Factory Service Manual

This is Hyundai's factory service manual for the R55W-9A wheel excavator, as a PDF. It runs to 659 pages in 8 sections: the same workshop manual Hyundai dealers use.

It covers the Hyundai R55W-9A excavator.

The R55W-9A at a glance

These figures are taken from the specifications section of this manual.

About the Hyundai R55W-9A 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 (19 pages) - safety hints, the machine's specifications and tightening torques.
• Structure and function (64 pages) - how the main components work: pumps, valves, motors and cylinders.
• Hydraulic system (31 pages) - the hydraulic circuits and how oil flows in each operation.
• Electrical system (122 pages) - component locations, wiring circuits, electrical specifications and connectors.
• Troubleshooting (40 pages) - fault-finding procedures.
• Maintenance standard (30 pages) - performance tests and wear limits for the major components.
• Disassembly and assembly (341 pages) - step-by-step removal, overhaul and installation of the major components.
• Component mounting torque (12 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 R55W-9A, 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 R55W-9A. The R55-3, R55-7, R55-7A and R55-9 have a separate manual. Check the model plate on your machine before ordering.

Questions about this manual

Which machines does this manual cover?
The Hyundai R55W-9A. 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?
659 pages, in 8 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.