4-28 P/N 13772-004
Section 4 Cirrus Design
Normal Procedures SR22
Lead Reduction Before Shut Down
Complete the following procedure before shutdown to reduce potential
for lead build-up in the combustion chamber, spark plugs, and engine
oil.
• Caution •
The airplane must be stationary before the following
procedure is completed.
1. Maintain throttle between 1000 and 1200 RPM until operating
temperature has stabilized.
2. Increase throttle to 1800 RPM for 15 - 20 seconds.
3. Reduce throttle back to between 1000 and 1200 RPM and shut
down immediately using mixture control.
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