
PERIODIC REPLACEMENT OF DEFINED LIFE 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 the defined life parts.
Material quality of these parts can change as time passes and they are likely to wear out or deteriorate. Howev-
er, 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 im-
portant 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 perform the following checks with hydraulic hoses which need not to be replaced periodically. Tighten all
loose hoses and replace defective hoses, as required.
When replacing hoses, always replace O-rings, gaskets, and other such parts at the same time.
Have your Komatsu distributor replace the defined life parts.
DEFINED LIFE PARTS LIST
No.
Parts for periodic replacement
Replacement interval
1
Fuel system
Fuel hose
Spill hose
Every 2 years or 4000 hours,
whichever comes sooner
2
Engine lubrication system
Turbocharger lubrication hose
Engine oil filter hose
3
Steering system
High pressure circuit hose
4
Brake system
Brake oil pressure hose
5
Torque converter, trans-
mission system
Transmission circuit hose
3
Work equipment hydraulic
system
Main pump delivery hose
Main pump delivery hose other than described
above
Pump branch hose
Main pump LS hose
Hose for hydraulic drive fan
External work equipment hose
•
Hoist circuit hose
4
Others
PPC accumulator
Seat belt
Every 3 years from start of us-
age or 5 years after manufac-
turing of seat belt, whichever
comes sooner.
PERIODIC REPLACEMENT OF DEFINED LIFE PARTS
REPLACEMENT PARTS
7-2
Содержание HM400-5
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Страница 23: ...LOCATION OF SAFETY LABELS SAFETY SAFETY LABELS 2 5 ...
Страница 24: ...SAFETY LABELS SAFETY 2 6 ...
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Страница 61: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1 ...
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Страница 323: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1 ...
Страница 409: ...SPECIFICATIONS 5 1 ...
Страница 411: ...SPECIFICATIONS SPECIFICATIONS 5 3 ...
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Страница 413: ...ATTACHMENTS AND OP TIONS Before reading this chapter read and understand the SAFETY 6 1 ...
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Страница 431: ...REPLACEMENT PARTS 7 1 ...
Страница 446: ...HM400 5 ARTICULATED DUMP TRUCK Form No EENAM03380 2015 KOMATSU All Rights Reserved Printed in Belgium 09 2015 ...