TM 55-1520-240-T
8-15.2 ROTOR TACHOMETER VISUAL CHECK
INITIAL SETUP
Applicable Configurations:
All
Tools:
Electrical Repairer’s Tool Kit,
N S N 5 1 8 0 - 0 0 - 3 2 3 - 4 9 15
Materials:
None
Personnel Required:
68F10 Aircraft Electrician
References:
T M 5 5 - 1 5 2 0 - 2 4 0 - 23
Equipment Condition:
T M 5 5 - 1 5 2 0 - 2 4 0 - 2 3:
Battery Disconnected
Electrical Power Off
Hydraulic Power Off
Left and Right Baffles
Open Under Aft Transmission
T A S K
R E S U LT
1. Check pilot’s rotor tachometer indicator
If tachometer (1 ) is loose or damaged, tighten or
(1).
replace it as required.
2. Check copilot’s rotor tachometer indica-
If tachometer (2) is loose or damaged, tighten or
tor (2).
replace it as required.
3. Check No. 1 generator (3).
If plug (4) is loose or damaged or wiring to plug is
damaged, tighten or repair it as required.
4. Check No. 2 generator (5).
If plug (6) is loose or damaged or wiring to plug is
damaged, tighten or repair it as required.
FOLLOW-ON MAINTENANCE:
Left and right baffles closed under aft trans-
mission.
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