Description

Hitachi ZX290LC-5B and ZX290LCN-5B ZAXIS Excavator Manual

The manual is applicable for the Hitachi Excavator Model ZX290LC-5B and ZX290LCN-5B

Format: PDF
Language: English
Service Manual consists of the following:

For Model ZAXIS ZX290LC-5B and ZX290LCN-5B as mentioned above:

Service Manual (Troubleshooting) : Vol. No.TODDA-EN (500 Pages)
Service Manual (Operation) : Vol. No.TTDDA-EN (440 Pages)
Workshop Manual : Vol. No.WDDA-EN (583 Pages)

Circuit Diagram: 15 Pages

SI Units (International System of Units) is use in the manual.

Manual guide composition

Hitachi ZAXIS ZX290LC-5B and ZX290LCN-5B service manual consists of the Operating, Troubleshooting and the Workshop Manual.

• Information included in the Service Manual: Technical information needed for redelivery and delivery, operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures.
• Information included in the Workshop Manual: Technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal / installation and assemble / disassemble procedures.

To avoid injury and damage refer to the service manual and be sure to use appropriate lifting techniques and equipment when lifting heavy parts.

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Precautions for Using Floating Seal Manual Instructions Extract:

1. In general, replace the floating seal with a new one after disassembling.
If the floating seal is required to be reused, follow these procedures:

– Keep seal rings together as a matched set with seal ring (1) surfaces together. Apply oil onto sliding surface (e) of seal ring (1).
– Check sliding surface (e) of seal ring (1) for scuffing, scoring, corrosion, deformation, or uneven wear.
Check the step part of seal ring (1).
– Check O-ring (2) for tears, breaks, deformation, or hardening.

2. If incorrectly assembled, oil leakage or damage will occur. Be sure to do the following to prevent trouble.

– Clean the floating seal and seal mounting bores with cleaning solvent.
Use a wire brush to remove mud, rust, or dirt from seal mounting bores. After cleaning, thoroughly dry parts with compressed air.
– Clean seal ring (1) and O-ring (2) mounting bores. Check the bore surface for scuffing or scoring by touching the surface with finger.
– After installing the floating seal, check that O-ring (2) is not twisted, and that it is installed correctly on seal ring (1).
– After installing the floating seal, check that O-ring (2) and seal ring sliding surface (e) is parallel with seal mating surface (f) by measuring the distances (e) and (f) at point (A) and (B), as illustrated. If these distances differ, correct O-ring (2) seating.