MAINTENANCE
Periodic replacement of safety critical parts
Safety critical parts
4-15
Periodic replacement of safety critical parts
0.
Safety critical parts
0.
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 periodic maintenance. Hence, it is
required to replace them with new ones regardless of their condition after a certain period of usage. This is impor-
tant 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 peri-
odic 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 loos-
ened 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.
Summary of Contents for WA250PT-5H
Page 2: ......
Page 3: ...FOREWORD 11...
Page 16: ...Contents FOREWORD 1 14...
Page 24: ...SAFETY 2 2...
Page 58: ...Precautions with tires SAFETY Precautions when storing tires 2 36...
Page 60: ...OPERATION 3 2...
Page 233: ...TECHNICAL DATA 45...
Page 235: ...TECHNICAL DATA Technical data 5 3...
Page 250: ...Central lubrication system ATTACHMENTS OPTIONS 6 14...
Page 251: ...INDEX 67...
Page 252: ...INDEX 7 2...
Page 255: ...Index 7 5...
