Aeropro CZ A220, Maintenance Manual

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Maintenance Manual
AEROPRO CZ 11-1
Maintenance Manual
March 21, 2020
Section 11
Fuel system
Fuel system for standard 912ULS engine - for 914UL installations, see supplementary Section 11A
Table of contents Page
11.1 Fuel sy
stem……………………………………………………………
11-1
11.2 Descri
ption……………………………………………………..
11-1
11.3
Precautions…………………………………………………….
11-1
11.4 Trouble
shooting………………………………………………
11-2
11.5
Fuel tank………………………………………………………
11-2
11.6
Description……………………………………………..
11-2
11.7 Removal and installation of the header tank........... 11-2
11.8 Fuel filter.............................................................................. 11-4
11.9 Removal an
d installation……………………………..
11-4
11.10 Fuel
vent……………………………………………………….
11-4
11.11 C
hecking………………………………………………..
11-4
11.12 Fuel shut-o
ff valve…………………………………………...
11-4
11.13 Removal an
d installation……………………………..
11-4
11.14
Fuel drain valve………………………………………………
11-5
11.15 Removal an
d installation……………………………..
11-5
11.16
Fuel distributor system……………………………………….
11-6
11.17
Removal and installation……………………………..
11-6
11.18
Inspection………………………………………………
11-6
11.1 Fuel system
11.2 Description
The fuel is gravity-fed from the right-hand or left-hand wing tank into the header tank depending
which wing tank fuel valve is open. The fuel is then further directed from the header tank via the main fuel
valve and fuel filter into the mechanical fuel pump on the engine which delivers the fuel to the carburetors.
The amount of fuel in the tank is indicated by a visual sight gauge which is a part of each tank. Minimum
fuel quantity in the header tank is visually indicated by the lighting of a warning light on the instrument
panel. The remaining fuel (i.e. 1 gallon) is normally sufficient enough for 15 minutes of flight (at moderate
power settings). The fuel drain valve outlet is behind the left seat on the outside bottom side of the
fuselage; to drain off water and dirt the drain pipe is to be pressed into fuselage and subsequently a fuel
sample can be taken.
11.3 Precautions
1.
During all fueling, defueling, tank purging, and tank repairing or disassembly, ground the aircraft
to a suitable ground stake. Use the engine or negative battery terminal for grounding.
2. Residual fuel draining from lines and hose constitutes a fire hazard. Use caution to prevent the
spillage of fuel when lines or hoses are disconnected.
3. Cap any open fuel lines and cover connection points to prevent thread damage and the entrance
of any foreign matter.
Note
There are certain general precautions and rules concerning the fuel system which
should be observed when performing the operations and procedures in this section.
These are as follows.