Gardner Denver APEXVS7-11A, Operating And Service Manual

Page: 53 / 71

13-25-603 Page 52
Compressor, air/oil reservoir, separation chamber and all piping and tubing
may be at high temperature during and after operation.
1. Be sure the unit is completely off and that no air pressure is in the oil reservoir.
2. Disconnect, tag and lockout the power supply to the starter.
3. Wipe away all dirt around the oil filler plug.
4. Remove the oil filler plug and add oil as required to return the oil level to the full marker on the gauge.
5. Install the oil filler plug and operate the unit for about a minute allowing oil to fill all areas of the
system. Check for leaks.
6. Shut down unit, allowing the oil to settle, and be certain all pressure is relieved.
7. Add oil, if necessary, to bring level to “FULL.”
On unloaded operation and after shutdown, some oil will drain back into the oil reservoir and the oil level
will read over “FULL”. DO NOT DRAIN OIL TO CORRECT. On the next start, oil will again fill the system
and the gauge will indicate operating at the proper level. DO NOT OVERFILL as oil carryover will result.
The quantity of oil required to raise the oil level from “ADD” to “FULL” is shown in Figure 5-2, page 47,
this section. Repeated addition of oil between oil changes may indicate excessive oil carryover and
should be investigated.
Use only CLEAN containers and funnels so no dirt enters the reservoir. Provide for clean storage of oils.
Changing the oil will be of little benefit if done in a careless manner.
Excessive oil carry-over can damage equipment. Never fill oil reservoir above
the “FULL” marker.
COMPRESSOR OIL FILTER (Figure 1-2, page 9) - This replaceable element filter is a vital part in
maintaining a trouble-free compressor, since it removes dirt and abrasives from the circulated oil. The
filter is equipped with by-pass valve that opens in the event the element becomes dirty enough to block
the flow of oil.
Improper oil filter maintenance will cause damage to equipment. Replace filter
element every 1000 hours of operation. More frequent replacement could be
required depending on operating conditions. A filter element left in service too
long may damage equipment
Use only the replacement element shown on the filter tag or refer to the parts list for the part number.
Use the following procedure to replace the filter element. Do not disturb the piping.