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NOTE
The deice system is manually controlled.
Every time a deicing cycle is desired, the
switch must be positioned to ACTUATE.
The
switch will instantly spring back to OFF,
but a
6
second delay action in the timing
relay will complete the deicing inflation
cycle.
(2)
Check boots visually for complete deflation to the
vacuum hold-down position.
NOTE
Complete inflation and deflation cycle will
last approximately
30
seconds.
In Flight
(1)
When ice has accumulated to approximately 1/2 inch
thick on the leading edges, position deice switch
to ACTUATE.
After Landing
(1)
Check boots for damage and cleanliness.
Remove any
accumulations of engine oil or grease.
OPERATING DETAILS
Cycling the deice boots produces no adverse aerodynamic
effects in any attitude within the allowable flight limita-
tions.
Deice boots are intended to remove ice after it has
accumulated rather than preventing its formation.
If the
7-8
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