Daher-Socata TBM 900 Pilot's Information Manual page 489

SECTION 8
PILOT'S OPERATING HANDBOOK
HANDLING, SERVICING AND MAINTENANCE
Gently fold reservoir bag lengthwise into thirds (outside edges folded inward over center of bag). Do not crease
bag.
Fold reservoir bag away from breathing valves and into facepiece. Make sure bag does not cover breathing valves.
Page 8.7.8 Edition 0 -- October 31, 2013
Rev. 1