Lubricant Change Procedure; Operation Cold Ambient - Gardner Denver EDF-KB Operating And Service Manual

age, the thermal mixing valve (H) remains on the pack-
age. Control group part number 200ECM4002 will be
mounted on package at the factory. This group controls
the oil stop valve as well as not allowing machine to run
blowndown. See FIGURE 5–2, page 29.
Remote mounted elevated coolers
have a maximum pipe length of 30 feet
(9 M) (each way) and a maximum
height of 20 feet (6 M) with a minimum
of fittings. Engineering will review all
remote elevated cooler applications
and recommend pipe size on an indi-
vidual basis. Customer Service
should include the engineering rec-
ommendation in the special order
sent to Engineering.
Kit number EAQ68330 includes the oil stop valve,
check valve and flanges and must be installed on all re-
mote elevated coolers per See FIGURE 5–2, page 29,
and the following instructions.
1. Mount the check valve (90J113) as shown.
2. Mount the drain valves in the lowest section of the
pipe on each side of the cooler connections.
3. Mount the oil stop valve (90AR243) in the line after
the thermal mixing valve as shown.
Modifications to the control lines will be made at the fac-
tory per 288ECM810 schematic. Air to the oil stop valve
must come from the upper fitting in the separator hous-
ing, then pass through the 3–way pneumatic valve.
Control air to the valve must be from the line between
the tee and the orifice in the blowdown muffler line per
FIGURE 5–2, page 29.
down, it will activate the pneumatic valve and it will shut
off the air and vent the line between the pneumatic con-
trol valve and the oil stop valve to atmosphere. This will
shut the oil stop valve and prevent excessive oil from
running into the reservoir.
Failure to install these parts could result in high oil car-
ryover and cause the machine to shutdown on high dis-
charge temperature.
COLD AMBIENT OPERATION – See "Installation for
Cold Weather Operation," page 9.
When the machine blows
13–8–606
ADDITION OF OIL BETWEEN CHANGES must be
made when the oil level is in the red range on the gauge
as read while the unit is on. To add oil, follow these
steps:
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 center of the green
range on the gauge.
5. Install the oil filler plug, restore power, run and
check for leaks.
DO NOT OVERFILL. The quantity required to raise the
oil level from the red range center of the green range
is shown in FIGURE 5–4, page 33. Repeated addition
of oil between oil changes may indicate excessive oil
carry–over and should be investigated.
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.
Excessive oil carry–over can damage
equipment. Never fill oil reservoir
above the "FULL" marker.
LUBRICANT CHANGE PROCEDURE – Upgrading to
a longer life lubricant is essentially a very worthwhile
practice. Following are the primary steps to be com-
pleted when upgrading or changing the type of lubri-
cant.
1. Thoroughly drain system:
– Drain oil from air end and cooler while hot.
– Break low point connections and drain oil
from pipe runs.
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