TM 55-2090-201-14&P
3-3.
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)
contacts 5 and 9
is 24 VDC but the
first stage (pre-
filter) oil dis-
charge valve (8)
does not open,
then check the
valve and sole-
noid coil per
paragraph 3-24,
disassembly of
solenoid valve
and test pro-
cedure 4 below.
If output be-
tween contacts
7 and 9 is 0
volts and the
water discharge
valve (9) does
not close, check
the valve per
para 3-24, dis-
assembly of
solenoid valve.
A built-in time
delay of approx-
imately 2-3
seconds will hold
the first stage
(prefilter) oil
discharge valve
(8) open after
the mini-probe
signal termi-
nates.
the printed
circuit board:
3. To verify the
operation of
the second
stage mini-
probe (6) and
3. Internal power
3. Refer to remarks for
and auto con-
test procedure 2.
trols switch
The second stage No.2
(2)
are on.
oil dump light/button
Pump switch
(11) when depressed
(3)
is on.
activates the
Second stage
second stage mini-
mini-probe (6)
probe (6).
3-33
