The Turbo Air® 3000 Centrifugal Compressor Compressor Handbook

Maintenance
Oil Reservoir Vent Filter Element Replacement
The oil reservoir is vented through an ejector-filter system that does not require frequent maintenance
if its supply air is clean and dry, or if the humidity in the surrounding environment is not excessively
high. Moisture will collect in the filter element and eventually drain back into the reservoir contaminating
the lubricating oil. Use a Cooper Turbocompressor replacement filter only.
WARNING:
Introducing water into the oil reservoir will have adverse effects on the lubricating oil and
will cause severe damage to the compressor. Be sure the ejector’s supply air is clean and
dry and the filter is properly maintained during periods of high humidity.
Check the exhaust port at least daily. If an oil mist is evident, that is an indication of a clogged filter
element. Using the following procedure, replace the element.
1. Remove the trap line between the bottom of the filter housing and the reservoir.
2. Unscrew the retaining nut at the bottom of the housing.
3. Catch any excess oil in a separate container.
4. Slide down the lower housing section to expose the filter element.
5. Remove the nut holding the filter element in place, remove the element, and (being careful not to
over-tighten the retaining nut) install a new replacement element.
6. Inspect the o-ring seals at the top of the lower housing section and in the retaining nut. If necessary,
replace the seals to prevent leaks.
7. Wipe the housing clean.
8. Reassemble the filter and then pour a small amount of oil into the fill connection provided at the
top of the trap line to reinstate the mist filter trap.
Standard Oil Filter Element Replacement
The compressor must be shutdown before servicing the oil filter. When required, use the following
procedure to replace the standard oil filter element. Use a Cooper Turbocompressor replacement
filter only. Filters that look the same may not necessarily perform the same.
WARNING:
Do not attempt to remove the oil filter until oil pressure is at zero (O). Hot oil under
pressure presents a safety hazard to personnel.
1. Shutdown and lock-out the compressor.
2. Shut off the oil pump.
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