Komatsu WA470-6 2006, Руководство по эксплуатации и техническому обслуживанию

Страница: 275 / 392

4.6 Periodic replacement of safety critical parts
Maintenance Torque list
WA470-6H – VEAM946100
4-25
4.6 Periodic replacement of safety critical parts
For using the machine safely for an extended period of time, you
must periodically replace the safety critical and fire prevention-
related parts listed in the table of important parts.
Material quality of these parts can change as time passes and
they are likely to wear out or deteriorate. However, it is difficult to
determine the extent of wear or deterioration at the time of peri-
odic maintenance. Hence, it is required to replace them with new
ones regardless of their condition after a certain period of usage.
This is important to ensure that these parts maintain their full
performance at all times.
Furthermore, should anything abnormal be found on any of
these parts, replace it with a new one even if the periodic
replacement time for the part has not yet arrived.
If any of the hose clamps show deterioration like deformation or
cracking, replace the clamps at the same time as the hoses.
Also carry out the following checks with hydraulic hoses which
need not be replaced periodically. Tighten a loosened clamp or
replace a defective hose, as required.
When replacing the hoses, always replace the O-rings, gaskets,
and other such parts at the same time.
Ask your KOMATSU distributor to replace the critical parts.