13-18-601 Page 42
Figure 5-1 – CHECKING OIL LEVEL
Figure 5-2 – CHANGING OIL FILTER
REFILLING OIL SYSTEM - The steps to refill the drained oil system are the same as those already
presented for the addition of oil between changes – see page 40, for full details. The only exception is
that to fill all the empty lines and components (e.g., oil cooler, compressors, and oil filter) a much larger
volume of oil will be required.
The VS45-70 package requires nearly 6 gallons of AEON 9000SP Synthetic Lubricating Coolant to fill all
the lines and components and achieve normal oil level.
COMPRESSOR OIL FILTER - The oil filter is a vital part in maintaining a trouble-free compressor, since it
removes dirt and abrasives from the circulated oil. It should be replaced every 1000 hours of operation,
sooner if necessary due to dirty environmnent and when the oil is changed.
A flow bypass valve, mounted inside the filter cartridge, provides uninterrupted oil flow when the filter
element is contaminated and its backpressure exceeds 29-36 psid (at typical operating conditions of
140°F and 100 psi). However, since this condition introduces unfiltered, potentially contaminated oil into
the compressor, it is best avoided by following the recommended filter replacement intervals.
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