TM 55-1520-240-23-6
7-16.1
FLUSHING SERIOUSLY CONTAMINATED FLIGHT CONTROL OR UTILITY HYDRAULIC
SYSTEMS
(Continued)
7-16.1
ENGINE START WITH 74
86.1.
Set ENGINE CONDITION NO. 1 and NO. 2
levers (45) to STOP.
Make sure that rotor blades are clear
of obstructions and that personnel
are aware that rotor blades may turn
during engine motoring. Turning
blades can cause damage or serious
injury to personnel.
Make sure blades are clear of
obstructions. Otherwise, damage to
components can occur.
86.2.
Set ENG START switch (76) to 1 (46). Allow
engine to motor for 15 seconds.
86.3.
Set ENG START switch (76) to center (off).
86.4.
Set ENG START switch (76) to 2 (47). Allow
engine to motor for 15 seconds.
86.5.
Set ENG START switch (76) to center (off).
POWER TRANSFER UNIT
87.
Service Utility Hydraulic System Reservoir (Task
1-59).
88.
Service No. 1 and No. 2 Flight Control Hydraulic
System Reservoirs (Tasks 1-60 and 1-61).
89.
Set POWER XFR No. 1 switch (12) to ON. After
2 minutes, set switch to OFF.
90.
Set POWER XFR No. 2 switch (13) to ON. After
2 minutes, set switch to OFF.
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