Komatsu PC22MR-3, Operation & Maintenance Manual

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MAINTENANCE
PERIODICAL CHANGE OF SAFETY-RELATED COMPONENTS
4-19
PERIODICAL CHANGE OF SAFETY-RELATED
COMPONENTS
4
To ensure safety at any moment while driving and using the machine, the operator must carry out all the routine
maintenance operations prescribed. Furthermore, the operator must periodically change the components
indicated in the table in the following page, which are especially related to safety and fire-prevention rules. These
components are subject to wear and since it is particularly difficult to evaluate their conditions through simple
routine maintenance, after a certain time interval it is advisable to change them independently of their state, in
order to keep them efficient over time. Repair or replace these components immediately in case of failures or
anomalies, even if the time interval prescribed for their change has not elapsed yet.
If the pipe clamps show signs of deterioration, like deformations or cracks, provide for changing them together with
the pipes.
In addition to the periodical change of the components listed in the following page, the inspections described
below are to be carried out on the hydraulic pipes. Whenever anomalies are detected, carry out the necessary
adjustment operations and replacements, or take any other measure required.
For the quantities and codes of the safety-related components to be changed, see the spare parts catalogue.
When changing pipes, always change O rings, gaskets and analogous components.
Type of check Items to be checked
Before starting the engine Leakages from joints, hydraulic pipes or fuel pipes.
Periodically (monthly)
Leakages from joints, hydraulic pipes or fuel pipes. Damaged
hydraulic or fuel pipes (cracks, wear and tear).
Periodically (yearly)
Leakages from joints, hydraulic pipes or fuel pipes. Deteriorated,
twisted, damaged hydraulic or fuel pipes (cracks, wear and tear) or
pipes in contact with other parts of the machine.
WEAM014500