TM 55-1520-240-23-3
4-139
INSTALL POWER TURBINE CONTROL ACTUATOR
4-139
INITIAL SETUP
Applicable Configurations:
Without 74
Tools:
Powerplant Repairer’s Tool Kit, NSN
5180-00-323-4944
Torque Wrench, 5 To 50 Inch-Pounds
Materials:
Lockwire (E231)
Personnel Required:
Medium Helicopter Repairer
Inspector
References:
TM 55-1520-240-23P
NOTE
Procedure is same to install power
turbine control actuator on No. 1 or
No. 2 engine. No. 1 engine is shown
here.
1.
Position actuator (1) on bracket (2).
Screws must be lockwired left to right.
Interference or damage to control rod
could result if screws are lockwired
up and down.
2.
Install four screws (3) and washers (4). Lockwire
screws left to right. Use lockwire (E231).
3.
Connect cable connector (5).
Do not pinch, crush, kink, or make
sharp bends in fire detection element.
Element can be damaged.
4.
Press element (6) and bushing (7) into clamps
(8) at three locations. Bushings shall be centered
in clamps.
5.
Lock each clamp (8) with fasteners (9).
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