7
AMPERAGE
REQUIRED GAUGE FOR EXTENSION CORDS
25 ft.
50 ft.
100 ft.
150 ft.
1.2 A
18 gauge
16 gauge
16 gauge
14 gauge
IMPROPER CONNECTION of the equipment grounding conductor can result in electric shock. The
conductor with the green insulation (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 ground-
ing conductor to a live terminal.
CHECK with a licensed electrician or service personnel if you do not completely understand the grounding
instructions or whether the tool is properly grounded.
USE ONLY THREE-WIRE EXTENSION CORDS that have three-pronged plugs and outlets that ac-
cept the tool’s plug as shown in Fig. A. Repair or replace a damaged or worn cord immediately.
CAUTION: In all cases, make certain the outlet in question is properly grounded. If you are not sure, have
a licensed electrician check the outlet.
WARNING: This tool is for indoor use only. Do not expose to rain or use in damp locations.
Guidelines for using extension cords
Make sure your extension cord is in good condition. When using an extension cord, be sure to use one
heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line volt-
age resulting in loss of power and overheating. The table below shows the correct size to be used according
to cord length and nameplate ampere rating. When in doubt, use a heavier cord. The smaller the gauge
number, the heavier the cord.
Make sure your extension cord is properly wired and in good condition. Always replace a damaged exten-
sion cord or have it repaired by a qualified person before using it.
Protect your extension cords from sharp objects, excessive heat and damp/wet areas.
Use a separate electrical circuit for your tools. This circuit must not be less than a #12 wire and should be
protected with a 15 A time-delayed fuse. Before connecting the motor to the power line, make sure the
switch is in the OFF position and the electric current is rated the same as the current stamped on the motor
nameplate. Running at a lower voltage will damage the motor.
WARNING: This tool must be grounded while in use to protect the operator from electric shock.
ELECTRICAL INFORMATION
Summary of Contents for 3920
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