TM 9-2350-277-20-1
TACHOMETER MALFUNCTIONS
0116 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General mechanics tool kit: automotive
(WP 0926 00, Item 65)
Personnel Required
Unit Mech
Helper (H)
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
Trim vane lowered (see your -10)
Power plant access door opened (see your -10)
Power plant access cover removed (WP 0441 00)
Drivers power plant access panel
removed (see your -10)
T
1. Start engine (see your -10).
2. Does tachometer fail to show any reading?
YES
NO
GO TO AY (PAGE 0116 00-2)
Y
1. Stop engine (see your -10)
2. Remove tachometer cable (1) from tachometer (2).
3. Start engine (see your -10).
4. Observe tachometer cable drive tip (3).
5. Does tachometer cable drive tip fail to rotate?
YES
NO
YN
1. Stop engine (see your -10).
2. Replace tachometer (WP 0862 00).
3. Verify no faults found.
0116 00-1