Gardner Denver APEXVS7-11A, Operating And Service Manual

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13-25-603 Page 45
OIL SPECIFICATIONS - The recommended compressor lubricant is Gardner Denver AEON 4000
Lubricating Coolant which can be used for year-round operation except as noted in the “High
Temperature Operation” paragraph below, or low temperature, see “Installation for Cold Weather,” page
15. AEON 4000 Lubricating Coolant is a superior petroleum base lubricant formulated and containing
additives for use in Gardner Denver compressors.
Use of improper lubricants will cause damage to equipment. Do not mix
different types of lubricants or use inferior lubricants.
HIGH TEMPERATURE OPERATION - If the discharge temperature is sustained between 200
°
F to 210
°
F
(93
°
C to 99
°
C) for a period of more than four (4) hours due to continuing high ambient air temperature,
use Gardner Denver AEON 9000TH Lubricating Coolant which is a superior synthetic lubricant. Short
periods of up to four (4) hours of sustained discharge temperatures up to 210
°
F (99
°
C) do not require a
change from the recommended year-round lubricant AEON 4000.
LUBRICANT CHANGE PROCEDURE - Upgrading to a longer life lubricant is essentially a very
worthwhile practice. Following are the primary steps to be completed when upgrading or changing the
type of lubricant.
1. Thoroughly drain system:
•
Drain oil from air end and cooler while hot.
•
Break low point connections and drain oil from pipe runs.
•
Dump oil from the filter and reinstall used filter.
2. Fill the system with a 50 percent charge of the new lubricant:
•
Start the machine and stay there to observe.
•
Allow the machine to run about five minutes at temperature, or until temperature stabilizes, then
shut down.
3. Thoroughly drain the machine.
4. Change to new filter and separator.
5. Fill the system with a full charge of the new lubricant.
6. Machine should then be run normally; however, total run time after the initial change-out should be 50
percent of normal anticipated service life of the new lubricant.
•
Drain all lubricant from the system, change the filter and separator, and replace with a full charge
of the new lubricant.
7. Subsequent lubricant change-outs should be at normal intervals. (See “Oil Change Interval”, Figure
5-5, page 50.)