Ingersoll-Rand EP 20-ESP, Operators/Instruction Manual And Parts List

Page: 30 / 58

28
4.13 COOLANT SEPARATOR FILTER ELEMENT
The separator filter element should be replaced every
year or after 1000 hours of operation, whichever comes
first, to prevent excessive coolant carryover into the
plant’s air piping system.
The element is located in the cylindrical portion on top
of the Inlet Control Valve (See Figure 4.14-1).
Before beginning any work on the compressor,
open, lock and tag the main electrical disconnect
and close the isolation valve on the compressor
discharge. Wait 2 minutes after stopping to allow
internal pressure to dissipate. Vent residual pres-
sure from the unit by slowly unscrewing the
coolant fill plug one turn. Unscrewing the fill plug
opens a vent hole, drilled in the plug, allowing the
pressure to release to atmosphere (See Figure 4.3-
1). A slight mist or oil droplets may be visible dur-
ing venting. Do not remove fill plug until all pres-
sure has vented from the unit. Also vent piping by
slightly opening the drip leg valve. When opening
the drain valve or removing the coolant fill plug,
stand clear of the valve discharge, wear work
gloves and appropriate eye protection.
Procedure:
1. The cover has a spring holding the element in
place, so be careful when loosening the bolts. Place
downward force, on the cover while removing the 6
bolts and then carefully release the force allowing the
cover to be removed (See Figure 4.13-2).
2. Lift cover from the top of element.
3. Remove the cover sealing o-ring and discard.
4. Remove the spring from the top of the element.
SEPARATOR ELEMENT (INSIDE)
FIGURE 4.13-1 SEPARATOR ELEMENT LOCATION
APPLY DOWNWARD
FORCE ON TOP OF COVER
BOLT
FIGURE 4.13-2 COVER REMOVAL