TM 55-2090-201-14&P
2-4.
OPERATING UNDER USUAL CONDITIONS (Continued).
TO START (Continued).
D.
Change the filter element in
the 1st or 2nd stage separa-
tors when the differential
pressure reaches 30 psid
(2109.2 gm sq cm) on the
1st (Prefilter) stage or
25 psid (1757.7 gm sq cm)
on the second stage.
NOTE
A rapid rise in the differential
pressure for the first stage (pre-
filter) indicates that the filter
element is being blocked by solid
contaminates.
C.
Observe the pressure on the
pressure gauges at regular
intervals for differential
pressure build-up.
Refer to
paragraph 3-38, Differential
Pressure Calculation.
Figure 2-7.
Start-up and Operating Procedures, Type C and D
Separators (Sheet 4 of 4).
2-24