Gardner Denver VS200-250B Operating And Service Manual page 41

Use only CLEAN containers and funnels to avoid contamination of oil. Provide
for clean storage of oils. Changing the oil will be of little benefit if done in a
careless manner
OIL CHANGE INTERVAL – The AEON 9000SP Synthetic Lubricating Coolant shall be changed every
8000 hours of operation or as prescribed by the results of an oil analysis, whichever comes first. Note
that severe operating conditions (e.g., very dusty, high humidity, etc.), may require more frequent oil
changes.
Gardner Denver offers a free oil analysis program with our AEON 9000SP lubricant. The first sample
from a new unit should be sent in between 40-100 hours of operation.
DRAINING AND CLEANING OIL SYSTEM - Always drain the complete system. Draining when the oil is
hot will help to prevent varnish deposits and carry away impurities. To drain the system, use the following
method: (See Figure 1-3, page 10).
1. Be sure the unit is completely off and oil sump is depressurized.
2. Disconnect lockout and tagout the power supply to the compressor package.
3. Close (if provided by user) valve isolating compressor package from air system.
4. Remove reservoir fill and drain valve plugs and open drain valve to evacuate oil.
5. Close drain valve, add oil up to top of the sight glass, and replace fill plug.
6. If the drained oil and/or the oil filter element are contaminated with dirt, flush the entire system,
reservoir, oil cooler, mixing valve and lines. Inspect the oil separator element for dirt accumulation;
replace if necessary. If a varnish deposit exists, contact the factory for recommendations for
removal of the deposit and prevention of varnish.
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 39, 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 VS200-250 package requires about 32 gallons of AEON 9000SP Synthetic Lubricating Coolant to fill
all the lines and components and achieve the HIGH oil level on the sight glass.
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 environment and when the oil is changed. See Figure 1-3, page 10) for
the location of the oil filter within the package.
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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