TM 55-1520-240-23-6
7-345
BLEED UTILITY RESERVOIR/COOLER, APU PUMP/MOTOR AND PUMP (WITHOUT
EXTERNAL POWER)
(Continued)
7-345
UTILITY PUMP
30.
Disconnect tube (41) at case drain port (42) of
utility pump (22) at right side of aft transmission
(43).
31.
Fill pump (22) through port (42) with hydraulic
fluid (E199). Use hand oiler.
32.
Connect tube (41) to port (42).
33.
Operate handpump (14) to fill pressure lines.
34.
Loosen nut (38) of tube (39) at return control
module (40). Let fluid flow until air-free.
35.
Rotate aft head clockwise a minimum of 10
complete turns, or until fluid flow from tube (39)
is air-free. Use tiedown lines to turn rotor head.
36.
Tighten nut (38).
7-1281
