Aqua Lung MDB Technical Manual page 11

3. Inspect the O-ring at the end of the fill adapter to make sure it is in good condition. Thread
the adapter onto the threaded outlet boss on the cylinder valve until finger tight (Fig. 3).
4. Loosen the yoke knob. While supporting the auxiliary cylinder in one hand, attach the adapter
to a fully pressurized 200 BAR (2,900 PSI) scuba cylinder (Fig. 4).
5. Relief plug is fixed in the closed position on the GERS fill adapter when filling the auxiliary
cylinder from a scuba cylinder.
WARNING: DO NOT attempt to fill the auxiliary cylinder from a supply cylinder which con-
tains more than 200 BAR/ (2,900 PSI). Doing so may weaken and damage the cylinder.
6. Open the handwheel on the auxiliary cylinder counterclockwise until the valve is completely open.
7. VERY SLOWLY open the valve on the scuba cylinder.
NOTE: Always fill the auxiliary cylinder as slowly as possible by turning the handwheel of the
supply valve slowly to control the rate of fill. Rapid filling will generate heat and will result in
an incomplete fill after the cylinder cools. Make sure not to over-inflate or inflate too rapidly. If
the cylinder is warm to the touch afterward, the fill rate was too rapid.
check
o-ring
Fig. 3
Relief Plug Yoke Knob
Fig. 4
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