TASK 5 - BALANCE TAIL ROTOR
PROCEDURE 1: EQUIPMENT INSTALLATION
a. Remove AVA tail rotor balancing equipment from transport case. Check for possible damaged equipment and
b. Install DAU in canvas carrying case.
c. Place DAU behind the pilot seat with the connectors faring up and secure DAU using canvas straps and
d. Remove hood assembly from one of the pilot's console lights. Remove the bulb. Plug AH-1S power cable
adapter (29317100), figure 2, into lamp socket. Ensure that the lamp intensity is set to full intensity (clockwise).
e. Connect grounding clip to a screw head or any non-painted metal surface, which will provide an adequate path
to aircraft ground.
f. Connect power cable (29104700) to the AH-1S power cable adapter (29317100) and to the DAU receptacle
marked 28 Vdc.
g. Place CADU in front seat. Connect CADU to DAU cable (29325601) to CADU and to DAU receptacle marked
PROCEDURE 2: ACCELEROMETER INSTALLATION
a. Install accelerometer (28110900) on accelerometer mounting bracket (29313000).
b. Mount accelerometer mounting bracket on bottom screw of the 90-degree gearbox fairing, see figure 9. Ensure
that the accelerometer is on the opposite side from the tail rotor and is installed perpendicular to the tail rotor
drive shaft (approximately 4:30 position).
c. Connect accelerometer cable (29105606) to accelerometer.
d. Wrap cable around tailskid using clamp fastener (209075178-1) and pass into cockpit. Connect accelerometer
cable to the DAU receptacle marked ACC4.
Figure 9. Accelerometer Mounting Bracket