TM 1-6625-724-13&P
0075 00
0075 00-5
TASK 1 – TEST EQUIPMENT INSTALLATION/CHECKOUT
PROCEDURE 1: CONFIGURE AIRCRAFT
a. Check that the phase detector and the three interrupter brackets are attached securely to the forward
swashplate and ensure that the double interrupter is installed under the green pitch link.
NOTE
Rotor blade tracking errors such as “Blade Apparently
Too Close,” “Blades Apparently Moving at Wrong
Speed” or “Blade Chords Apparently Different” may be
caused by excessive paint wear due to erosion on the
leading edge of the blades. Light paint touchup on the
underside of the rotor blades’ leading edges in the UTD
viewing area may eliminate these errors.
b. Position brackets over detector by turning blades. Check clearance between each of three interrupter brackets
and phase detector. Clearance shall be 0.015 to 0.025 inch.
c. Turn blades to position double interrupter over phase detector. The position of the blade should match figure 1.
Figure 1. Rotor Blades Position
NOTE
The open side of both accelerometer blocks, steps d and
e, face inboard.
d. Remove plug from dummy receptacle, see figure 2, and connect to forward accelerometer block.
e. Remove plug from dummy receptacle, figure 3 and connect to aft accelerometer block.
f. Check that blade TCK circuit breaker on No. 2 power distribution panel is closed.
