CHAPTER 28
PAGE 4
PAGE DATE: 1. March 2011
MAINTENANCE MANUAL EXTRA 330LX
28-00-00 GENERAL
The fuel system (refer to figure 1) consists of one center
tank (3), an acro tank (8), two wing tanks (1), a fuel selector
valve (2), a gascolator (9) , an electrically driven auxiliary
pump (6), an engine driven rotary pump (7) and three fuel
drains (5).
On the rear instrument panel one fuel quantity indicator for
the center tank and one for the wing tanks (refer to
chapter 31, figure 2) as well as the boost pump switch and
circuit breaker are installed.
For fuel tank capacities refer to chapter 12-10-01.
Reduction of Fuel Tank Vapor Hazards
During all ventilation or maintenance procedures involving
the fuel system, observe the following general precautions:
1 Defueling should be done outdoors with the aircraft at least
100 feet from hangars or other aircraft.
2 No smoking should be allowed within 100 feet of the air-
craft.
3 Suitable fire fighting equipment should be available. Foam
or soda type extinguishing agents are recommended.
4 Ground the aircraft to prevent static electricity from caus-
ing sparks. If a ramp ground is available it should be con-
nected to the exhaust. If a ramp ground is not provided, a
temporary ground can be obtained by driving a metal rod
into the ground and attaching a ground wire between the rod
and the aircraft exhaust.
5 Flame and spark producing equipment should not be oper-
ated within 100 feet of the aircraft.
6 The aircraft should have its battery disconnected. Remove
negative and positive pole and cover the poles with adequate
means for isolation.
7 Only personnel working on the aircraft should be allowed
in the immediate area, and no other maintenance should be
performed while the tanks are being worked on.
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