2
IMPORTANT SAFEGUARDS
WARNING: 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 a 3-prong grounding-type plug to
fit the proper grounding-type receptacle. The appliance has a plug that looks like sketch A
in Figure 73.1. An adaptor, sketch B, should be used for connecting sketch A plugs to two-
prong receptacles. The grounding tab which extends from the adaptor must be connected
to a permanent ground such as a properly grounded outlet box as shown in sketch C using a
metal screw.
FIGURE 73.1
Grounding Methods
(C)
ADAPTER
(A)
Circuit grounding
conducter connected
properly
(B)
Metal
mounting
scew
Cover of grounded
outlet box
Grounding means
AA220
