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Oil Coalescing Element Service – Use the following procedures to replace or inspect the element:
1.
Be sure the unit is completely off and that oil sump is depressurized.
2.
Disconnect, lockout and tagout power supply to the compressor package.
3.
Remove bolts holding the oil sump cover and lift the cover away.
4.
Lift the elements (2) from sump.
5.
Inspect and/or replace the elements if necessary - shine a light inside each element to reveal areas
of heavy dirt, varnish deposits or breaks (ruptures) in its media. Also inspect (sealing) o-ring in
elements for damage. Before installing new or old element, apply (heavy) grease to sealing o-ring.
Oil may be wiped off by the holder and the o-ring could be damaged.
6.
Inspect oil scavenge orifice and strainer for fouling. Replace if necessary.
7.
Lower elements into sump and press element down into respective holder. Do not use excessive
force as element damage may occur.
8.
Carefully place sump cover and o-ring seal on sump flange. Check that the adjustable space (e.g.,
pipe segment threaded under cover) makes contact with the top of the elements. The contact
(e.g.,1/32" interference typical) should be firm enough to provide a grounding path between the
elements and the vessel without crush-damaging the former's structure.
9.
After compressor is started and pressurized, inspect sump cover joint for leaks.
Figure 5-5 – CHANGING OIL COALESCING ELEMENT
13-18-614
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