TM 1-1520-240-MTF
4-6
NOTE
The meter pointer will move in direction selected.
(retract or extend). The pointer may initially deflect
offscale then return to the required average meter
deflection and fall to appropriately zero in the re-
quired time interval for ambient temperature as
shown below. Hold switch until the meter pointer
indicates zero or stabilizes at approximately zero.
6. Test switch — Extended.
7. Test switch — Retract.
TEMPERA-
TURE
AVG METER
DEFLECTION
TIME INT SEC-
ONDS
10C and above
.05 to .20
50 to 300
–20C to 10C
.04 to .20
50 to 360
–55C to –20C
.02 to .20
50 to 480
8. Selector switch — Center.
9. Repeat steps 5 thru 7.
10. Selector switch — Right.
11. Repeat steps 5 thru 7.
12. Selector switch — Off.
C. CONTROL BREAKOUT FORCES.
1-28.
Reference:
TM 55-1520-240-23
The control breakout forces check is intended to
detect improper installation of close tolerance
bolts, overtorqued hardware, or dirty bearings.
