TM 1-6625-724-13&P0075 000075 00-5TASK 1 – TEST EQUIPMENT INSTALLATION/CHECKOUTPROCEDURE 1: CONFIGURE AIRCRAFTa. Check that the phase detector and the three interrupter brackets are attached securely to the forwardswashplate and ensure that the double interrupter is installed under the green pitch link.NOTERotor blade tracking errors such as “Blade ApparentlyToo Close,” “Blades Apparently Moving at WrongSpeed” or “Blade Chords Apparently Different” may becaused by excessive paint wear due to erosion on theleading edge of the blades. Light paint touchup on theunderside of the rotor blades’ leading edges in the UTDviewing area may eliminate these errors.b. Position brackets over detector by turning blades. Check clearance between each of three interrupter bracketsand 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 PositionNOTEThe open side of both accelerometer blocks, steps d ande, 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.
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