TM 55-2090-201-14&P
OPERATORS TROUBLESHOOTING PROCEDURES (Continued).
Table 3-5.
Test Procedures for Electrical and Electronic Components,
Type B Separators (Continued).
Meter
Reading
Test Procedure
(VDC)
Test Conditions
Remarks
2.
(Continued)
VDC reading is
not obtained.
Refer to para-
graph 3-49 for
replacement of
mini-probe.
C. Connect the
test meter
leads first
to contacts
5 and 9.
Depress the
No. 2 (pre-
filter oil
dump light/
button (7).
24
Connect the
test meter
leads to con-
tacts 7 and
9.
Depress
the oil dump
No.
1 Prefil-
ter) light/
button (7).
0
C. A 24 VDC readout
between contacts
5 and 9 indicates
the first stage
(prefilter) oil
discharge valve
(8) and the No. 1
oil dump light/
button (7) are
receiving a sig-
nal from mini-
probe (5). The
printed circuit
board is function-
ing properly. A
zero readout be-
tween contacts 7
and 9 indicates
the water dis-
charge valve (9)
and circuit board
are functioning
properly. Replace
circuit board if
output between
contacts 5 and 9
is less than 24
± 5 VDC, or
greater than 0
volts between
contacts 7 and 9.
Refer to para
3-14 for cir-
cuit board
replacement. If
output between
3-32
