User manual
Maintenance and Service 
Page 94 
English 
1.  Unscrew the fuel cartridge connector 
from the empty 
EFOY fuel cartridge. 
2.  Open the belt. 
3.  Remove the empty EFOY fuel cartridge. 
4.  Use the screw cap to seal each EFOY 
fuel cartridge securely after use. 
4.1.2  Inserting the fuel cartridge 
CAUTION! 
Impurities in methanol! 
Original EFOY fuel cartridges contain methanol that has been approved 
by SFC. Even slight impurities or foreign particles in commercially avail-
able methanol may cause irreversible damage to the EFOY fuel cell, and 
may render the warranty or guarantee null and void. 
Use only original EFOY fuel cartridges. 
WARNING! 
Use only original EFOY fuel cartridges! 
Please refer to the information about methanol provided in chapter 
2.3 "Safety instructions for methanol" on page 60. 
Keep all EFOY COMFORT fuel cells and EFOY fuel cartridges out of reach 
of children, even when empty or only partly full. 










