Cessna T182 1982 Pilot Operating Handbook page 246

PILOTS GUIDE ICEMAN
IAS93B6
))1
SECfION 2
2.0 LIMITATIONS
2.1 Placard: "Flight not to be predicated on use of Carburettor Ice detector."
SEmON 3
3.0 EMERGENCY PROCEDURES
3.1 No change.
SEmON 4
4.1 NORMAL PROCEDURES
4.1.1 After turning the aircraft master tiwitch to the "ON" position and starting the
aircraft engine, set the detector power switch to "ON", and turn the "ADJUST"
rotary control fully counter-clockwise. The audio alarm will activate and the
red "CARB ICE" warning light will illuminate. Depress the "RESET" switch to
deactivate and silence the audio alarm.
4.1.2 NOTE: After engine start, increase power to run-up setting, and apply carb
heat for at least 30 seconds prior to adjusting the sensitivity using the
"ADJUST" rotary control, to ensure that no ice is present when adjustment is
made. Every time a re-adjustment of the "ADJUST" rotary control is required,
carburettor heat must be applied for at least 30 seconds, prior to such
adjustment, to ensure that no ice is present in the carburettor.
4.1.3 Leave the ice detector power switch set to "ON" at all times during flight.
REV. 1 July 10, 1995 B6-5
) PILOT'S GUIDE
ICEMAN
IAS93B6
4.1.4 To test the ice detector, activate the "TEST" switch which will trigger the red
"CARB ICE" light and the audio alarm will sound. On release of the ''TEST''
switch, the "CARB ICE" light goes out, but the audio alarm remains activated
until the "RESET" switch is momentarily depressed. The system operation is
again in the ice detection mode.
4.1.5 If the "CARB ICE" light illuminates and the audio alarm sounds, indicating ice
formation on the probe in the carburator throat, immediately apply carb heat.
Then depress and release the "RESET" switch to mute the audio alarm. This
will deactivate and reset the audio alarm. The "CARB ICE" warning light will
remain "ON" until the frost or ice has been cleared from the carburettor at
which time the red light will go out
4.1.6 If the red light does not go out after approximately two minutes of heat
)
application, the cause may be an improper "ADJUST" rotary control setting or
carburettor icing conditions. Using the "ADJUST" rotary control, reset the
sensitivity and the light should go out If the light fails to go out, continue to
apply heat until it does. You may be flying in conditions condusive to
carburettor icing, continue to apply carburettor heat and refer to your P.O.H.
for proper procedures.
4.2
ABNORMAL PROCEDURES
4.2.1. If after activating the ''Test'' switch the red "CARB ICE" warning light fails to
illuminate and the audio alarm fails to activate, then either the fuse is burnt or
the ice detection unit requires service. The "ON/OFF" switch should be
turned "OFF" and the unit serviced before reuse.
4.2.2 If upon actviating the ''Test'' switch the "CARB ICE" light fails to illuminate but
the audio alarm activates, the unit requires servicing. The "ON/OFF" switch
should be turned to the "OFF" position and the unit serviced before reuse.
REV.!
July 10, 1995
B6-6