EFOY Fuel Manager FM2 User Manual page 60

If the fuel cartridge is inserted incorrectly, methanol can leak out.

If the M28 fuel cartridge is used in a horizontal position, the seal must
always be on the top on the side.
Page 60
Maintaining and caring for the EFOY Fuel Manager

Remove the sealing cap of the
EFOY M28 fuel cartridge.

Screw the M28 adapter (2) onto
the EFOY M28 fuel cartridge (3).

Screw the fuel cartridge
connection (1) onto the M28
adapter (2).

The EFOY M28 fuel cartridge can
also be used in a horizontal
position. The safety valve and fuel
cartridge connector must always
be on the top side of the fuel
cartridge when lying on its side.