FILLING AND BLEEDING FLIGHT CONTROL HYDRAULIC SYSTEMS (WITHOUT
Loosen case drain fitting (25) at power control
Have helper rotate rotor blades through at
least ten complete turns by pulling blades
around in normal direction. Use blade
tiedown lines on forward blades.
While blades are being turned, let fluid flow
from case drain fitting (25) until air-free.
Operate the APU (Task 1-36).
Set POWER XFR NO. 2 switch (6) on cockpit
HYDRAULIC panel (7) to ON. Set FLT CONTR
switch (8) to NO. 2 ON.