Quantcast PUMP AND PLUMBING BLOW-OUT PROCEDURE. (Cont) - TM-9-2320-279-10-30251

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TM 9-2320-279-10-3
Operation Under Usual Conditions (Cont)
RADIO1
AUTO
RADIO
TALK
LISTEN
RADIO2
BOTH
INTERCOM
SQUELCH
VOLUME
711p
A
B
21
20
19
18
t. Let pressure build up to 50 psi (345 kPa) on pump PRESSURE
gage (18). With a firm grip on control handle (19), push and release
button (20) to engage roof turret. Indictor light (21) will come on.
u. Let pressure drop to zero. Press and release agent discharge button (20)
to turn roof turret to off. Check that indicator light (21) goes out.
v. Repeat steps t. and u.
712p
22
23
w. Let pressure build up to 50 psi (345 kPa) on pump PRESSURE
gage (18). Put GROUND SWEEPS switch (22) in ON position. Indicator
light (23) will come on.
x. Let pressure drop to zero. Put GROUND SWEEPS switch (22) in OFF
position. Check that indicator light (23) goes out.
y. Repeat steps w. and x.
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