Section 5, Lubrication, Oil Cooler, Oil Filter & Separator; Figure 5-1 Oil Fill - Gardner Denver EBB BB-7.5 HP Operating And Service Manual

SECTION 5
LUBRICATION
OIL COOLER, OIL FILTER & SEPARATOR
COMPRESSOR OIL SYSTEM (FIGURE 4–1, page
15) The compressor oil system cools the compressor,
lubricates moving parts and seals internal clearances
in the compression chamber.
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
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 Gar-
dner Denver compressor distributor.
OIL SPECIFICATIONS – The recommended com-
pressor lubricant is Gardner Denver
Lubricating Coolant which can be used for year–round
operation except as noted in the "High Temperature
Operation" paragraph, page 25, or low temperature,
see "Installation for Cold Weather," Section 2, page 10.
AEON 2000 Lubricating Coolant is a superior petro-
leum base lubricant formulated and containing addi-
tives for use in Gardner Denver compressors.
Use of improper lubricants will cause
damage to equipment. Do not mix dif-
ferent types of lubricants or use in-
ferior lubricants. Check the decal on
the oil reservoir for lubricating cool-
ant specification.
lubricants.
PROCEDURE FOR ADDING/CHECKING OIL LEV-
EL AND CHANGING THE OIL – Check the oil level
before starting the unit and after every 100 hours of op-
eration.
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
AEON 2000
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 chamfer at the top of
the filler neck (see FIGURE 5–1, above). The oil
filler plug is provided with a lateral safety hole,
from which oil or air will appear if the oil reservoir
has not been completely blown down.
5. Install the oil filler plug, run the unit and check for
leaks.
DO NOT OVERFILL. The quantity required to raise
the oil level from "MINIMUM" to "MAXIMUM" is shown
in FIGURE 5–1. Repeated addition of oil between oil
changes may indicate excessive oil carry–over and
should be investigated.
Use only clean containers and funnels so no dirt enters
the reservoir. Provide for clean storage of oils. Chang-
ing the oil will be of little benefit if done in a careless
manner.
13–8–612 Page 24
MAXIMUM (FULL)
MINIMUM (ADD)
FIGURE 5–1 – OIL FILL