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4. Remove fuel filler cap and fuel airplane to desired level.
• Note •
If fuel is going to be added to only one tank, the tank being
serviced should be filled to the same level as the opposite
tank. This will aid in keeping fuel loads balanced.
5. Remove nozzle, install filler cap, and remove protective cover.
6. Repeat refuel procedure for opposite wing.
7. Remove ground wires.
8. Remove fire extinguisher.
March 2010
8-24 Information Manual
Section 8 Cirrus Design
Handling, Servicing, Maintenance SR20
Fuel Contamination and Sampling
Typically, fuel contamination results from foreign material such as
water, dirt, rust, and fungal or bacterial growth. Additionally, chemicals
and additives that are incompatible with fuel or fuel system
components are also a source of fuel contamination. To assure that
the proper grade of fuel is used and that contamination is not present,
the fuel must be sampled prior to each flight.
Each fuel system drain must be sampled by draining a cupful of fuel
into a clear sample cup. Fuel drains are provided for the fuel
gascolator, wing tanks, and collector tank drains. The gascolator drain
exits the lower engine cowl just forward of the firewall near the airplane
centerline. Fuel tank and collector tank drains are located at the low
spot in the respective tank.
If sampling reveals contamination, the gascolator and tank drains must
be sampled again repeatedly until all contamination is removed. It is
helpful to gently rock the wings and lower the tail slightly to move
contaminates to the drain points for sampling. If after repeated
samplings (three or more), evidence of significant contamination
remains, do not fly the airplane until a mechanic is consulted, the fuel
system is drained and purged, and the source of contamination is
determined and corrected.
Airplane serials 1887 and subsequent; The gascolator incorporates a
filter bypass that activates a red, pop-up tab when pressure drop
across the gascolator reaches 0.8 ± 0.2 PSI. The filter is bypassed
when the pressure drop reaches 1.20 ± 0.2 PSI. Once the pop-up tab
is activated, the fuel filter element must be replaced and the pop-up
tab manually reset. Do not attempt to clean the filter element.
If sampling reveals the airplane has been serviced with an improper
fuel grade, do not fly the airplane until the fuel system is drained and
refueled with an approved fuel grade.
To help reduce the occurrence of contaminated fuel coming from the
supplier or fixed based operator, pilots should assure that the fuel
supply has been checked for contamination and that the fuel is
properly filtered. Also, between flights, the fuel tanks should be kept as
full as operational conditions permit to reduce condensation on the
inside of fuel tanks.
March 2010
Information Manual 8-25
Cirrus Design Section 8
SR20 Handling, Servicing, Maintenance
Draining Fuel System
The bulk of the fuel may be drained from the wing fuel tanks by the use
of a siphon hose placed in the cell or tank through the filler neck. The
remainder of the fuel may be drained by opening the drain valves. Use
the same precautions as when refueling airplane. Refer to the SR20
Maintenance Manual for specific procedures.
Battery Service
Access to the 24 volt Battery 1 is gained by removing the upper cowl. It
is mounted to the forward right side of the firewall. The battery vent is
connected to an acid resistant plastic tube that vents gases and
electrolyte overflow overboard.
The battery fluid level must not be brought above the baffle plates.
Until experience indicates a longer interval is justified, the battery
should be checked every 30 days to determine that the fluid level is
proper and the connections are tight and free of corrosion. Do not fill
the battery with acid use distilled water only.
If the battery is not properly charged, recharge it starting with a rate of
four amperes and finishing with a rate of two amperes in accordance
with Airplane Maintenance Manual (AMM) procedures. The battery
should be removed from the airplane for charging, and quick charges
are not recommended.
Battery 2 is a maintenance free, rechargeable, sealed, lead acid
batter. Mounted in the empennage just aft of bulkhead 222, there is no
need to check the specific gravity of the electrolyte or add water to
these batteries during their service life. Refer to the Airplane
Maintenance Manual (AMM) for Overhaul and Replacement Schedule.
The external power receptacle is located on the left side of the
fuselage just aft of the firewall. Refer to the Airplane Maintenance
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西锐20飞机信息手册CIRRUS DESIGN SR20 AIRPLANE INFORMATION MA(96)
