Section 2
DESCRIPTION
12
Figure 2---3 Compressor Discharge System
nents when compressor is running or pressurized.
Stop compressor and relieve all internal pressure be-
fore doing so.
2.6 CAPACITY CONTROL SYSTEM, FUNCTIONAL
DESCRIPTION
R e f e r t o F i g u r e s 2 --- 3 , 2 --- 4 A o r 2 --- 4 B . T h e p u r p o s e
of the control system is to regulate the amount of air
intake in accordance with the amount of com-
pressed air being used. The control system con-
sists of a pressure regulating valve(s), air inlet
valve, sy stem blowdown valve, and tubing con-
necting the various components to the compres-
sor and engine governor. The functional descrip-
tions of the control system are given in four distinct
phases of operation. It applies to any control system
with the exception of those with stated pressures
which are dependent on pressure requirements.
The pressures stated will be in accordance with a
compressor having an operating pressure range of
100 to 110 psig (6.9 to 7.6bar).
START -- 0 TO 40 PSIG (0 TO 2.8 BAR)
COLD WEATHER
To minimize problems in cold weather, starting aids,
engine coolant heaters and dry---side receiver relief
valves should be used. Refer to the engine opera-
tors manual for additional information.
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