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
2.
(Continued)
A zero read out
between con-
tacts 7 and 9
indicates the
water discharge
valve (9) and
circuit board
are functioning
properly.
Replace circuit
board if output
between con-
tacts 5 and 9
is less than
24 + 5 VDC, or
greater than 0
volts between
contacts 7 and
9.
Refer to para-
graph 3-17 for
circuit board
replacement.
If output
between con-
tacts 5 and 9
is 24 VDC but
the first stage
(prefilter) oil
discharge valve
(8) does not
open, then
check the valve
and solenoid
coil per para-
graph 3-24, dis-
assembly of
solenoid valve
and test pro-
cedure 4 below.
3-18
