Meco Aussie by Meco 4280 Walk-a-bout - Manual (Page 13)

Raises up while filling then
stops when full.
IMPORTANT NOTICE
(Only if using a 20 lb. LP Cylinder and an adapter hose)
The Gas Grill is can be setup to operate with a LP Gas Cylinder equipped
with an OPD (Overfilling Prevention Device).
This is a secondary device to prevent the overfilling of your LP Gas cylinder. The
proper methods for the filling of your LP Gas cylinder are by weight or volume, as
described in NFPA 58. Please make sure your filling station fills your LP Gas
cylinder by weight or volume. Ask your filling station to read purging and filling
instructions on the LP cylinder before attempting to fill.
Do not exchange the LP Gas cylinder unless the exchange LP Cylinder
is equipped with an OPD. Otherwise you will lose the OPD (Overfilling
Prevention Device) feature. If there is not an LP cylinder available for
exchange equipped with an OPD, we recommend that you have your
cylinder filled at an authorized LP gas dealer by a qualified attendant.
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