13-25-606 Page 52
9-1
SECTION 9
SERVICING OF MISCELLANEOUS DEVICES
This section will cover basic maintenance of various control devices used with the compressor
module. Refer to Figure 9-1, Page 52, for pictorials of referenced hardware.
INLET CONTROL VALVE ASSEMBLY
Inlet-Valve Assembly (2) -
This device is located within and below the intake flange of the compressor -
see Figure 9-1 for internal details and Figure 4-6, page 35 for schematic details.
During the loaded state, the
inlet poppet
remains open and enables atmospheric air to enter the
compressor inlet - this is done by venting to atmosphere the gas trapped underside of the piston via
check valve (19)
and
orifice
(18)
. During the unloaded state, a two-way solenoid valve feeds
pressurized air underneath the
piston
, forcing it and
the inlet poppet
upward and blocking-off the
compressor intake. A small purge check valve, located in the poppet, allows a stream of air to reach
(e.g., purge) the rotors and keep them from unstable, noisy operation and producing sufficient pressure to
maintain cooling / lubricating oil flow.
Figure 9-1 – Inlet Valve Assembly
Air/oil pressure will cause severe personal injury or death. Shut down
compressor, relieve system of all pressure, disconnect, lockout and tagout
power supply to the starter before removing valves, caps, plugs, fittings, bolts
and filters.
Содержание AirSmart G2
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