Specifications

SECTION IV
MODEL 560 OPERATING INFORMATION
COLD WEATHER OPERATIONS
2. Engine Start Preparation:
a. Engine preheat should not be required for engine oil temperatures down to -20°C (-4°F).
However, minor engine oil leaks may occur after start at extremely cold temperatures if the
engines have not been preheated. Any leak should stop once the oil seals have warmed up.
Any visible oil leak must stop prior to flight.
For AMLCD equipped aircraft, include step b.
b. Below an engine oil temperature of -20°C (-4°F) the oil temperature indicator will display a
red FAIL message. Engine oil must be warmed to greater than or equal to -20°C (-4°F), and
the red FAIL message extinguished prior to engine start.
3. After Engine Start:
a. Avionics may require a 30-minute warm-up period after cold soak. All avionics must be
operating properly before flight.
b. WS TEMP annunciator may not test after cold soak at extremely cold temperatures. If this
occurs, repeat the test after the cabin has warmed up. This test must be completed prior to
flight.
4. Postflight:
a. If prolonged exposure is anticipated:
1) Do not set the parking brake or control lock.
2) Remove the battery and store at a temperature above -10°C (+14°F).
3) Parking the airplane within a heated shelter (hangar) is recommended.
b. Remove crew oxygen masks if prolonged exposure to temperatures of 0°C (+32°F or less)
are anticipated.
RAIN REMOVAL
The windshield bleed air system provides rain removal during flight and ground operations. This
system also serves as the windshield anti-ice system when used as described in the windshield anti-ice
paragraph of this section.
When rain removal is desired, the PULL RAIN knob should be pulled out first and then the W/S
BLEED switch should be positioned to LOW. A check should be made to ensure the WINDSHIELD BLEED
AIR Knobs are in the MAX position.
I 56OMB-01 Configuration AA 4-27