TM 55-2090-201-14&P
3-3.
OPERATORS TROUBLESHOOTING PROCEDURES (Continued).
Table 3-4.
Test Procedures for Electrical and Electronic Components,
Type A Separators (Continued).
Meter
Reading
Test Procedure
(VDC)
Test Conditions
Remarks
1. (Continued)
lamp in the auto
controls indica-
tor light (4) if
a reading of 24
VDC was obtained,
but the indicator
did not light.
Refer to para-
graph 3-10 for
lamp replacement.
2. Verify the
operation of
the first
stage (pre-
filter) mini-
probe (5) and
the printed
circuit board:
2. Internal power
2. The normal opera-
and auto controls
tion of the mini-
switch (2) are
probe is to trans-
on:
pump switch
mit a 24 VDC sig-
(3) off; both
nal.
The signal
mini-probe (5,6)
opens the sole-
immersed in water
noid operated oil
discharge valve.
It closes the
solenoid operated
water discharge
valve when it
senses oil or air.
The mini-probe
should be re-
placed if a sig-
nal is generated
while it is in
water.
The mini-probe
should be re-
placed if a sig-
nal is not trans-
mitted when the
first (prefilter)
stage oil dump
light/button (7)
does not light
when it is de-
pressed.
3-15
