Daher-Socata TBM 900 Pilot's Information Manual page 490

SECTION 8
PILOT'S OPERATING HANDBOOK
HANDLING, SERVICING AND MAINTENANCE
Coil oxygen tubing inside facepiece over reservoir bag.
Connect oxygen tubing to manifold oxygen fitting.
WARNING
MAKE SURE LANYARD PIN IS INSERTED INTO CORRECT CHECK VALVE FOR MASK
BEING INSTALLED. CROSS CONNECTED PINS WILL RESULT IN PASSENGERS PULLING
LANYARD CORDS ONLY TO INITIATE OXYGEN FLOW TO ANOTHER MASK
Insert lanyard pin into corresponding check valve.
Place mask facepiece - first in deployment container. Make sure that oxygen tubing and lanyard cord are free to
deploy and are not caught between the container and lid.
Close and latch deployment container lid.
Edition 0 -- October 31, 2013 Page 8.7.9
Rev. 1