11
Grounding Instructions
This machine must be
grounded while in use to protect the operator
from electric shock.
In the event of a malfunction or breakdown,
grounding provides a path of least resistance for
electric current to reduce the risk of electric
shock. This tool is equipped with an electric cord
having an equipment-grounding conductor and a
grounding plug. The plug must be inserted into a
matching receptacle that is properly installed
and grounded in accordance with all local codes
and ordinances.
Do not modify the plug provided. If it will not fit
the outlet, have the proper outlet installed by a
qualified electrician.
Improper connection of the equipment-
grounding conductor can result in a risk of
electric shock. The conductor, with insulation
having an outer surface that is green with or
without yellow stripes, is the equipment-
grounding conductor. If repair or replacement of
the electric cord or plug is necessary, do not
connect the equipment-grounding conductor to a
live terminal.
Check with a qualified electrician or service
personnel if the grounding instructions are not
completely understood, or if in doubt as to
whether the tool is properly grounded. Use only
three wire extension cords that have three-prong
grounding plugs and three-pole receptacles that
accept the tool’s plug.
115 Volt Operation
As received from the factory, your sander is
ready to run at 115 volt operation. This sander is
intended for use on a circuit that has an outlet
and a plug that looks like the one illustrated in
Figure 7.
Figure 7
A temporary adapter, like the adapter in Figure
8, may be used to connect this plug to a two-
pole receptacle, as shown in Figure 8, if a
properly grounded outlet is not available. The
temporary adapter should only be used until a
properly grounded outlet can be installed by a
qualified electrician.
This adapter is not
applicable in Canada.
The green colored rigid
ear, lug, or tab, extending from the adapter,
must be connected to a permanent ground such
as a properly grounded outlet box, as shown in
Figure 8.
Figure 8
Extension Cords
Use proper extension cords. Make sure the cord
rating is suitable for the amperage of the
machine’s motor. An undersized cord will cause
a drop in line voltage resulting in loss of power
and overheating.
Use the chart in Figure 9 as a general guide in
choosing the correct size cord. The smaller the
gauge number, the heavier the cord.
Recommended Gauges (AWG) of Extension Cords
Amps
Extension Cord Length *
25
feet
50
feet
75
feet
100
feet
150
feet
200
feet
<
5
16 16 16 14 12 12
5
to
8 16 16 14 12 10 NR
8
to
12 14 14 12 10 NR NR
12
to
15 12 12 10 10 NR NR
15
to
20 10 10 10 NR NR NR
21
to
30 10 NR NR NR NR NR
*based on limiting the line voltage drop to 5V at 150% of the
rated amperes.
NR: Not Recommended.
Figure 9
