9.4.4 Venting the oil pump
If no oil pressure builds up after the compressor starts running, the oil pump may
need to be vented. This is particularly applicable after maintenance and servicing
work, or if the unit was operated in conjunction with an incorrect rotational direc-
tion.
1.
If the compressor is running and the condensate drain valves are open, re-
move the plug (see (Fig. 23-4)).
2.
Re-attach the plug when bubble-free oil emerges.
3.
Check the oil level, see Chapter 9.4.1 Checking the oil level, Page 90.
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