TM 55-1510-221-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
b. Surface deice switch - Hold to
DEICE MANUAL position.
Boots should stay inflated until
switch is released.
c. Surface deice switch - Release
Check boots visually to see that
they are sucked down flat after
use
*5
Antenna deice system - Check as
C42
follows:
a. Antenna deice switch - AUTO
Check that wing dipole antenna
boots inflate and automatically
deflate for one cycle.
b. Antenna deice switch - Hold to
MANUAL position Check that
wing dipole antenna boots in-
flate and stay inflated until
switch is released.
c. Antenna deice switch - Release
Check boots visually to see that
they are sucked down flat after
use.
*6
Propeller deice system - Check as
C54
follows:
a. Propeller deice switch - Set to
AUTO position.
b. Propeller deicer ammeter -
Monitor for 14 to 18 amperes
and for a slight needle deflec-
tion every 30 seconds.
c. Manual deice - Hold switch to
OUTER position. Note a 05
increase in each loadmeter in-
dication Move and hold switch
2-41
