S
ECTION
4: N
ORMAL
P
ROCEDURES
C
IRRUS
D
ESIGN
E
NVIRONMENTAL
C
ONDITIONS
SR20
4-26
P/N 11934-005
Hot Weather Operation
Avoid prolonged engine operation on the ground. Fuel Pump must be ON
for engine start and takeoff, and should be ON during climb for vapor
suppression which could occur under hot ambient conditions or after
extended idle.
Ground Operation of Air Conditioning System (Optional)
• N
OTE
•
To facilitate faster cabin cooling, prior to engine start leave the
cabin doors open for a short time to allow hot air to escape cabin.
Extended Ground Operation
For airplanes that experience prolonged engine operation on the ground,
the following procedure is recommended to reduce potential for spark plug
lead fouling and lead build-up on engine valve guides.
1. Set throttle to 1200 RPM.
2. Lean the mixture for maximum RPM.
3. Reduce throttle to RPM for continued ground operations (800 - 1000
RPM is recommended).
• WARNING •
Except as required for high elevation airports, the mixture lever must
be returned to the full forward/rich position before take-off.
• N
OTE
•
If further ground operations will be required after the
Checklist is completed, lean the mixture again (as
described above) until ready for the
Checklist.
1. Control Panel......... SELECT DESIRED MODE AND TEMPERATURE
2. Voltage ..........................................................................................MONITOR
• N
OTE
•
Decrease electrical load if battery discharge is noted.
3. Annunciator Lights ...........................................................................CHECK
a) Verify ALT 1 caution light out and positive amps indication.
4. Engine Parameters ............................................................................CHECK
Reissue A
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