Section 2
DESCRIPTION
12
Figure 2-6 as you read this segment. Locate the fol-
lowing: line pressure, sump pressure and dis-
charge temperature gauges and the air filter, sep-
arator and fluid filter restriction gauges, along with
start and stop buttons and an hourmeter.
Refer to Figure 2-7 for functional locations of the
following indicators and controls:
• The line (terminal) pressure gauge is con-
nected to the dry side of the receiver down-
stream from the check valve. It continually
monitors the air pressure.
• The sump pressure gauge continually mon-
itors the sump pressure at the various load
and/or unload conditions.
• The discharge temperature gauge monitors
the temperature of the air leaving the com-
pressor unit.
• The air filter restriction gauge monitors the
condition of the air intake filter. When point-
er reaches the red zone, filter service is
required (see Figure 2-6).
• The start push-button turns the compressor
on and resets the compressor.
• The stop push-button turns the compressor
off.
• The hourmeter records cumulative hours of
operation of the compressor. It is useful for
planning and logging service operations.
• The separator maintenance gauge monitors
the condition of the separator elements.
Pointer will move into the red zone when the
elements should be replaced. This gauge is
automatically reset after the elements have
been replaced.
• The fluid filter maintenance gauge monitors
the condition of the fluid filter element.
Pointer will move into the red zone when the
element should be replaced. This gauge is
also automatically re-set after elements
have been changed (for fluid filter location
see Figure 2-3).
• The red light on the instrument panel indi-
cates when power to the compressor is sup-
plied.
• The green light indicates when the com-
pressor is running.
Figure 2-5 Compressor Air Inlet System
Figure 2-6 Instrument Panel Group
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