Instruction Manual Breathing Air Compressors
27
- Fill compressor with the new oil.
- After approx. 100 operating hours check lubricating oil
for degree of contamination, and change oil again if
necessary.
- Perform subsequent oil changes according to chapter OIL
CHANGE.
- Refill compressor with same oil, only.
Abb. 38 Oil filler neck
1
Abb. 39 Removing the cover
1
2
1
3
Abb. 40 Replacing the oil filter
1
4.5. VENTING OIL PUMP
If no or low oil pressure builds up after starting the unit- espe
cially after maintenance or repair work, or if the unit should
have been running in the wrong direction due to a wrong
phase sequence - venting of the oil pump may be necessary.
Proceed as follows:
- With the compressor running and all condensate drain
valves open to avoid pressure being built up during this
procedure, unscrew screw cap and plug (3, Abb. 39)
three turns and wait until oil pours out free of air bubbles.
Retighten plug and cap nut.
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