Aircraft Maintenance Manual - Seamax M-22
SW / FW
Page 73
2 From inside the cockpit, inspect all the plastic connections to the fuel tanks, and look for
leaks and loose clamps.
3 Inspect all the fuel hoses for general conditions, cracks, and hose rigidity. Check that the
hoses are well fixed to avoid contact with other parts and moving parts
4 Check the fuel filter. Empty the header tank, close both fuel valves from the wing tanks,
and open the drain valve before removing the fuel filter. Replace each year or each 100
H.
5 Drain the header tank to check the water and fuel quality.
6 Check the fuel pump, fuel pump connections, and fuel pump fixation.
7 Inside the engine cowling, check the fire sleeve protection on fuel hoses. Check the fuel
circuit inside the cowling.
8 Check the fuel vents inside the engine cowling.
6.7 Fuel Filter
Check the fuel filter for foreign objects and cleanliness. Replace each 100 h or each year. Do not
use paper fuel filters. Consult the Rotax manual for fuel filter information.
6.8 Fuel Vents
The Seamax has five fuel vents; two for each wing’s tank, one in each side of fuel tank, and one
from the header tank.
All the five fuel vents go to the engine cowling, the highest part of the airplane, protected inside with
fire sleeve.
6.9 Removal / Installation of Wing Fuel Tanks
Before removing a wing fuel tank, first empty the entire fuel system by opening both fuel valves and
drain the fuel.
Disconnect the fuel line and the two fuel vents from each fuel tank.
Remove the wing following the instruction described in 4.1.2.5.
Use a knife to cut the silicon that goes between the side of the fuel tank and the wing.
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