Waring Commercial Quik Stik WSB35 Manuel D'utilisation page 3

GROUNDING INSTRUCTIONS
This appliance must be grounded while in use to protect the operator from
electrical shock. The appliance is equipped with a 3-conductor cord and
3-prong grounding-type plug to fit the proper grounding-type receptacle.
The appliance has a plug that looks like the plug in drawing (1). An adapter,
as in drawing (2), should be used for connecting the appliance plug to
two-prong receptacles. The grounding tab which extends from the adapter
must be connected to a permanent ground such as a properly grounded
outlet box as shown in drawing (3) using a metal screw.
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