TM 1-1520-238-23
Change 4
10-255
10.50.
AFT FUEL CELL INSTALLATION – continued
p. Apply talcum powder to outer surfaces of fuel
cell and to fuel cell cavity in helicopter. Use
talcum powder (item 197, App F). Allow fuel cell
to warm to room temperature.
q. Position fuel cell (2) in fuel cell cavity (1). En-
sure backing boards are properly positioned in
fuel cavity and taped in position (para 10.51).
r. Remove straps (37).
s. Inflate fuel cell (2). Use vacuum cleaner.
(1) Install pneumatic pressure filler (39) on plug
(32).
(2) Turn shutoff valve knob (35) fully counter-
clockwise to open valve (36).
(3) Install vacuum cleaner (33) on pressure filler
(39).
(4) Start vacuum cleaner (33).
(5) Turn pressure fill regulator knob (40) clock-
wise until 2 psi is indicated on pressure regu-
lator gage (41).
NOTE
Pressure fill assembly relief valve will be-
gin venting pressure at approximately 0.5
psi.
(6) Continue to apply pressure until fuel cell is
fully inflated.
(7) With air pressure still flowing, turn shutoff
valve knob (35) fully clockwise, to keep fuel
cell (2) inflated.
(8) Shutoff vacuum cleaner (33).
(9) Remove vacuum cleaner (33) from pressure
filler (39).
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M04-1915-12
1
2
37
M04-1915-15
39
32
41
35
36
40
2
33
