Central Pneumatic 93657 Owner's Manual & Safety Instructions page 6

Grounding
tO prEVEnt ELEctric SHOcK anD DEatH
FrOM incOrrEct GrOunDinG WirE cOnnEctiOn:
check with a qualified electrician if you are in doubt as to whether the outlet is
properly grounded. Do not modify the power cord plug provided with the
compressor. never remove the grounding prong from the plug. Do not use the
compressor if the power cord or plug is damaged. if damaged, have it repaired by a service
facility before use. if the plug will not fit the outlet, have a proper outlet installed by a
qualified electrician.
Grounded compressors: compressors
with three prong plugs
3-prong plug and Outlet
1. Tools marked with "Grounding Required"
have a three wire cord and three prong
grounding plug. The plug must be
connected to a properly grounded outlet.
If the tool should electrically malfunction
or break down, grounding provides a low
resistance path to carry electricity away
from the user, reducing the risk of electric
shock. (See 3-prong plug and Outlet.)
Extension cords
1. Grounded tools require a three
wire extension cord.
2. As the distance from the supply outlet
increases, you must use a heavier gauge
extension cord. Using extension cords with
inadequately sized wire causes a serious
drop in voltage, resulting in loss of power
and possible tool damage. (See table a.)
3. The smaller the gauge number of the wire,
the greater the capacity of the cord. For
example, a 14 gauge cord can carry a higher
current than a 16 gauge cord. (See table a.)
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2. The grounding prong in the plug is connected
through the green wire inside the cord to the
grounding system in the tool. The green wire
in the cord must be the only wire connected
to the tool's grounding system and must
never be attached to an electrically "live"
terminal. (See 3-prong plug and Outlet.)
3. The tool must be plugged into an appropriate
outlet, properly installed and grounded in
accordance with all codes and ordinances.
The plug and outlet should look like those in
the preceding illustration.
(See 3-prong plug and Outlet.)
4. When using more than one extension cord
to make up the total length, make sure
each cord contains at least the minimum
wire size required. (See table a.)
5. If you are using one extension cord for more
than one tool, add the nameplate amperes
and use the sum to determine the required
minimum cord size. (See table a.)
6. If you are using an extension cord
outdoors, make sure it is marked with the
suffix "W-A" ("W" in Canada) to indicate
it is acceptable for outdoor use.
Item 93657