CHAPTER 12
PAGE 6
MAINTENANCE MANUAL EXTRA 300/SC
PAGE DATE: 1. August 2014
12-10-03 Fuel Drains
The EXTRA 300/SC has three fuel drain valves to provide for
drainage of moisture and sediment. The center- and acro tank
drain valve is located at the RH bottom of the fuselage behind
the landing gear, the wing tank drain is located at the left side.
The third drain which is interconnected to the fuel gascolator
is located in the lowest point at right side of the firewall.
D A N G E R Do not drain the fuel system when the engine or the
exhaust is hot or while the wind is strong.
A quantity of fuel must be drained prior to the first flight of
the day and at least five min. after refueling to inspect for
water and/or contamination. Continue draining each drain
valve until free of water or contamination.
I M P O R T A N T After draining, you have to be sure that the fuel drain
valve is returned to the closed position and the valve is
not leaking outside the aircraft.
12-10-04 Replenishment of Engine Oil
The engine oil replenishment is accomplishment by pouring
oil into the oil filler spout. The oil quantity can be conveniently
checked by use of the dipstick attached to the oil filler spout
cap.
Oil quantity
The oil quantity is checked as follows:
1 Check oil level after engine has been stopped long enough
for oil to drain back into sump.
2 Open the hatch on the upper part of the cowling.
3 Unscrew oil filler cap and dipstick from engine oil filler
spout.
4 Remove cap and dipstick from engine and wipe oil from
dipstick with a clean cloth or paper towel.
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