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SECTION 5
LUBRICATION
OIL COOLER, OIL FILTER & SEPARATOR
COMPRESSOR OIL SYSTEM (FIGURE 5–1, page
28) cools the compressor, lubricates moving parts and
seals internal clearances in the compression chamber.
The oil inlet line is connected at the bottom of the oil res-
ervoir. Air pressure in the oil reservoir forces oil through
the oil cooler, thermostatic mixing valve, oil filter and
into the compressor main oil gallery.
The oil passes through internal passages for lubrica-
tion, cooling and sealing. The air–oil mixture is then
discharged to the oil reservoir where a large part of
the entrained oil drops out of the air stream; the air
then passes through the final oil separator where most
of the remaining oil is removed. The separated oil is re-
turned to the compressor and the air passes to the final
discharge line.
RECOMMENDED LUBRICANT – Gardner Denver
compressors are factory filled with AEON lubricants.
These lubricants are formulated to the highest quality
standards and are factory authorized, tested and ap-
proved for use in rotary screw compressors. AEON
lubricants are available through your authorized Gard-
ner Denver compressor distributor.
OIL SPECIFICATIONS – The recommended com-
pressor lubricant is Gardner Denver AEON 4000 Lubri-
cating Coolant which can be used for year–round op-
eration except as noted in the "High Temperature
Operation" paragraph below, or low temperature, see
"Installation for Cold Weather," page 9.
AEON
4000 Lubricating Coolant is a superior petro-
leum base lubricant formulated and containing addi-
tives for use in Gardner Denver compressors.
A lubricant analysis program for a periodic check of lu-
bricant quality and remaining life can maximize the
change interval.
Specific AEON lubricants are recom-
mended for use in this equipment.
Other lubricants may cause exces-
sive carryover or compressor dam-
age. Do not mix different types of lu-
bricants or use inferior lubricants.
Air/oil under pressure will cause
severe personal injury or death. Shut
down compressor, relieve system of
all pressure, disconnect, tag and
lockout power supply to the starter
before removing valves, caps, plugs,
fittings, bolts, and filters.
HIGH TEMPERATURE OPERATION – If the dis-
charge temperature is sustained between 200
210 F (93 to 99 C) for a period of more than four (4)
hours due to continuing high ambient air temperature,
use Gardner Denver
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.
High
temperature
cause damage to equipment or per-
sonal injury. Do not repeatedly restart
the unit after high temperature stops
operation. Find and correct the mal-
function before resuming operation.
Compressor, air/oil reservoir, separa-
tion chamber and all piping and tub-
ing may be at high temperature during
and after operation.
13–8–606
Page 27
AEON 9000 SP Lubricating
operation
can
to
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