TM 55-1520-240-T
5-2.3.1 ROTOR BLADE TRACKING AND BALANCING SYSTEM OPERATIONAL CHECK
5-2.3.1
INITIAL SETUP
Applicable Configurations:
Tracking with Helitune
Tools:
None
Materials:
None
Personnel Required:
Rotary Wing Aviator (2)
Aircraft Electrician
References:
TM 55-1520-240-23
Equipment Condition:
TM 55-1520-240-23:
Battery Connected
Electrical Power On
Hydraulic Power On
Rotor Blade Tracking and Balancing System Visual
Check Performed (Task 5-2.2).
Helicopter Prepared for In-Flight Blade Balancing
TASK
RESULT
1. Check that BLADE TRACK circuit breaker (1) is
If Blade Track circuit breaker (1) is open, close it. If
closed.
it opens again, go to task 5-2.4.
2. Have pilot start engines and stabilize rotors at 100
percent rpm. Prepare Helitune unit for Ground
Track, reference TM 55-1520-240-23.
3. Release EMERGENCY ISOLATION switch (2)
Power status lights (4) on operators console shall
on DMU. Press ON key (3) on operators con-
be green. If not, go to task 5-2.9.
sole.
4. Perform ground track procedure, reference TM55-
1520-240-23
FOLLOW-ON MAINTENANCE:
TM 55-1520-240-23:
Battery Disconnected
Electrical Power Off
Hydraulic Power Off
Disconnect Helitune Equipment
Change 10
END OF TASK
5-8.1/(5-8.2 blank)
