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necessary and rolling wings level with coordinated use of the controls.
• WARNING •
Extreme care must be taken to avoid uncoordinated,
accelerated or abused control inputs when close to the stall,
especially when close to the ground.
June 2007
Information Manual 4-25
Cirrus Design Section 4
SR22 Normal Procedures
Environmental Considerations
Cold Weather Operation
Starting
If the engine has been cold soaked, it is recommended that the
propeller be pulled through by hand several times to break loose or
limber the oil. This procedure will reduce power draw on the battery if a
battery start is made.
When the engine has been exposed to temperatures at or below 20°
Fahrenheit (-7° C) for a period of two hours or more, the use of an
external pre-heater and external power is recommended. Failure to
properly preheat a cold-soaked engine may result in oil congealing
within the engine, oil hoses, and oil cooler with subsequent loss of oil
flow, possible internal damage to the engine, and subsequent engine
failure.
If the engine does not start during the first few attempts, or if engine
firing diminishes in strength, the spark plugs have probably frosted
over. Preheat must be used before another start is attempted.
• WARNING •
If airplane will be started using external power, keep all
personnel and power unit cables well clear of the propeller
rotation plane.
• Caution •
Inadequate application of preheat to a cold soaked engine
may warm the engine enough to permit starting but will not decongeal
oil in the sump, lines, cooler, filter, etc. Congealed oil
in these areas will require considerable preheat.
An engine that has been superficially warmed, may start and
appear to run satisfactorily, but can be damaged from lack of
lubrication due to the congealed oil blocking proper oil flow
through the engine. The amount of damage will vary and may
not become evident for many hours. However, the engine may
be severely damaged and may fail shortly following application
of high power. Proper procedures require thorough application
of preheat to all parts of the engine. Hot air must be applied
directly to the oil sump and external oil lines as well as the
June 2007
4-26 Information Manual
Section 4 Cirrus Design
Normal Procedures SR22
cylinders, air intake and oil cooler. Because excessively hot air
can damage non-metallic components such as composite
parts, seals, hoses, and drives belts, do not attempt to hasten
the preheat process.
1. Ignition Switch ..........................................................................OFF
• WARNING •
Use extreme caution when pulling the propeller through by
hand. Make sure ignition switch is OFF, keys are out of
ignition, and then act as if the engine will start. A loose or
broken ground wire on either magneto could cause the engine
to fire.
2. Propeller........................................... Hand TURN several rotations
3. External Power (If applicable) .......................................CONNECT
4. Brakes ..................................................................................HOLD
5. Bat Master Switches ........................................ ON (check voltage)
6. Mixture ......................................................................... FULL RICH
7. Power lever..........................................................FULL FORWARD
8. Fuel Pump.....................................................PRIME, then BOOST
• Note •
Serials 0002 - 0278 before SB 22-73-01: In temperatures
down to 20°F, hold Fuel Pump switch to PRIME for 60-120
seconds prior to starting.
Serials 0002 - 0278 after SB 22-73-01 and 0279 and
subsequent: In temperatures down to 20°F, hold Fuel Pump
switch to PRIME for 15 seconds prior to starting.
9. Propeller Area .....................................................................CLEAR
10. Power Lever ............................................................OPEN ¼ INCH
(Continued on following page)
June 2007
Information Manual 4-27
Cirrus Design Section 4
SR22 Normal Procedures
11. Ignition Switch....................... START (Release after engine starts)
• Caution •
Limit cranking to intervals of 20 seconds with a 20 second
cooling period between cranks. This will improve battery and
contactor life
12. Power Lever ...............................RETARD (to maintain 1000 RPM)
13. Oil Pressure ....................................................................... CHECK
14. Alt Master Switches ...................................................................ON
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AIRPLANE INFORMATION MANUAL for the CIRRUS DESIGN SR22(33)
