TM 55-1520-240-23-6
7-336
BLEED UTILITY HYDRAULIC RESERVOIR/COOLER, APU PUMP/ MOTOR AND UTILITY
PUMP SYSTEM
(Continued)
7-336
28.
Have helper operate hand pump (14).
29.
Listen for APU motor/pump (17) to rotate. While
motor/pump is rotating, loosen nut (41) of case
drain tube (42) of return control module (43).
Allow fluid to flow until air free. Tighten nut. Use
cloths (E120) for spilled fluid.
30.
Stop operating pump (14).
7-1238