TM 55-2090-201-14&P
2-4.
OPERATING UNDER USUAL CONDITIONS (Continued).
TO START
NOTE
DO NOT allow the
oil level to drop
more than l-inch
(2.54 cm) down the
sight glass before
draining.
The ef-
ficiency of the
coalescing process
is reduced if the
filter element be-
comes immersed in oil.
A.
Turn the supply pump
selector switch to ON.
B.
Drain oil from each stage
when oil level is first
visible in sight glass by:
1.
Opening the oil dis-
charge valve on either
the 1st (prefilter) or
2nd stage.
2.
Closing water discharge
valve.
NOTE
Allow the oil to discharge for
approximately one to two seconds
after the oil disappears from
the sight glass before closing
the oil discharge valve.
3.
Open the Water Discharge
Valve and close the Oil
Discharge Valve after
the oil has drained from
the vessel.
Figure 2-7.
Start-up and Operating Procedures, Type C and D
Separators (Sheet 3 of 4).
2-23
