9
7.4
Electrical connections
Electrical connections must
be made by a qualified electrician in
compliance with all relevant codes. This
machine must be properly grounded to help
prevent electrical shock and possible fatal
injury.
7.4.1
Grounding instructions
This machine must be grounded. 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.
The Pneumatic Shear is equipped with a 15 amp
cord and plug set, with a grounding prong. The
plug must be plugged into a matching outlet 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. Repair or replace a
damaged or worn cord immediately.
Use only 3-wire extension cords that have 3-prong
grounding plugs and 3-pole receptacles that accept
the machine’s plug. As received from the factory,
your shear is ready to operate at 115-volt
operation. This shear, when wired for 115 volt, is
intended for use on a circuit that has an outlet that
looks like the one illustrated in Figure 3. The tool
has a grounding plug that looks like the plug
illustrated in Figure 3.
Make sure your power supply matches the
information on the specification plate of the
machine.
Figure 3
7.4.2
Extension cords
The use of an extension cord is not recommended.
Try to place shop equipment within reach of the
power source. If an extension cord becomes
necessary, make sure the cord rating is suitable for
the amperage listed on the machine’s motor plate.
An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating.
Use the chart in Figure 17 as a general guide in
choosing the correct size cord. If in doubt, use the
next heavier gauge. 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.
Table 1
