A371-32-880 Issue C
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Maintenance
The pumping speed is poor The connecting pipelines are too small in diameter.
The connecting pipelines are too long.
The inlet-filter is blocked.
There is an external oil leak The oil pump shaft seal is worn or damaged.
The oil box o-ring has deteriorated.
There is an oil leak from gas-ballast control.
There is an oil-leak from the drain-plug.
Table 5 – Fault finding (continued)
Fault condition Possible cause