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 TM 55-1925-273-10-1
0079 00
! CAUTION
The OCM must have flow through it while in operation. Operating the OCM without flow
through it for more than 2 minutes will result in damage to the OCM. Failure to comply with this
caution will result in damage to the equipment.
9.
Set the OWS control panel switch (figure 10, item 1) to MAN. The OWS pump will start, drawing oily water through
the unit. The pump will continue to run as long as the switch is in the MAN position.
10. Verify that the OCM has fluid flowing through the OCM sample inlet tubing (figure 13, item 3) and is discharging fluid
through the OCM sample discharge tubing (figure 13, item 4). If the OCM does not have fluid flow within 2 minutes,
turn the OWS control panel switch (figure 10, item 2) to OFF and notify the maintenance supervisor. If the OCM does
have fluid flow within 2 minutes continue with the procedure.
11. Close and secure the sampling/sensor assembly door (figure 13, item 5).
12. If the Remote Indicator was selected, the PUSH TO CHANGE ALARM LIMIT (PPM) pushbutton switch A2S1 (figure
15, item 1) on the remote indicator (alarm) assembly (figure 15, item 2) must be set to the proper PPM. Select the IN
PORT (15 PPM) or AT SEA (70 PPM) alarm limit by pushing the PUSH TO CHANGE ALARM LIMIT (PPM)
pushbutton switch A2S1 until the IN PORT indicator (figure 15, item 3) or the AT SEA indicator (figure 15, item 4)
illuminates.
13. Verify that the OCM is operating properly by checking the following OCM system indicators:
a.
The POWER indicator A1DS1 (figure 16, item 1) on the OCM display (figure 16, item 2) is illuminated.
b.
The RANGE-PPM indicator (figure 16, item 3) on the OCM display (figure 16, item 2) indicates the PPM
Selected.
c.
The sampling/sensor assembly Light Emitting Diodes (LEDs) (figure 16, item 4) on the OCM display (figure 16,
item 2) are illuminated.
d.
OCM WARNING 1 (figure 16, item 5) on the OCM display (figure 16, item 2) is not illuminated.
! CAUTION
OCM WARNING 2 and 3 may cycle on and off depending on the amount of dirt, bubbles, foam,
or air in the sample. If OCM WARNING 2 or 3 illuminate for more than 60 seconds continu-
ously, check the OCM to ensure flow is present. Operating the OCM without flow through it for
more than 2 minutes will result in damage to the OCM. Failure to comply with this caution will
result in damage to the equipment.
e.
OCM WARNING 2 (figure 16, item 6) on the OCM display (figure 16, item 2) is not illuminated.
f.
OCM WARNING 3 (figure 16, item 7) on the OCM display (figure 16, item 2) is not illuminated.
g.
The POWER ON indicator A2DS1 (figure 15, item 5) is illuminated on the Remote Indicator Assembly (figure 15,
item 2) if the ALARM LIMIT (PPM) SELECTOR switch A1S2 (figure 13, item 2) is in the REMOTE position.
h.
The appropriate alarm limit indicator (figure 15, items 3 and 4) is illuminated on the Remote Indicator Assembly
figure 15, item 2) to correspond with the alarm limit selected if the ALARM LIMIT (PPM) SELECTOR switch
A1S2 (figure 13, item 2) is in the REMOTE position.
0079 00-24
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