TM 9-4910-679-14&P
GROUNDING
This tool should be grounded while in use to protect the operator from electric shock. The tool is equipped with an
approved three-conductor cord and three-prong grounding type plug to fit the proper grounding type receptacle. The green
(or green and yellow) conductor in the cord is the grounding wire. Never connect the green (or green and yellow) wire to a
live terminal. If your unit is for use on less than 150 volts, it has a plug like that shown in Figure A. If it is for use on 150 to
250 volts, it has a plug like that shown in Figure D. An adapter, Figures B and C, is available for connecting Figure A plugs
to two-prong receptacles. The green-colored rigid ear, lug, etc, must be connected to a permanent ground such as a
properly grounded outlet box. No adapter is available for a plug as shown in Figure D. Adapter shown in Figures B and C
is not for use in Canada.
We recommend that you NEVER disassemble the tool or try to do any rewiring in the electrical system.
Should you be determined to make a repair yourself, remember that the green colored wire is the "grounding" wire. Never
connect this green wire to a "live" terminal. If you replace the plug on the power cord, be sure to connect the green wire
only to the grounding (longest) prong on a 3-prong plug.
If you use an extension cord, be sure that it is a 3-conductor, grounding type cord. Grounding must be continuous from the
tool plug to the grounded receptacle.
EXTENSION CORD
Extension Code
When using the tool at a considerable distance from power source, a 3-conductor, grounding-type extension cord of
adequate size must be used for safety, and to prevent loss of power and over-heating. Use the table below to determine
minimum wire size required.
Use only three wire extension cords which have three-prong grounding-type plugs and three-pole receptacles which accept
the tool's plug. Replace or repair damaged cords.
Amper rating(on nameplate)
0 to2.0
2.10 to3.4
3.5 to5.0 to 5.10 to 7.0
7.10 to12.0
12.116.0
Ext. Cable length
Wire Size (A.W.G.)
25 ft.
18
18
18
18
16
14
50fit.
18
18
18
16
14
12
75 ft.
18
18
16
14
12
10
10 ft.
18
16
14
12
10
-
150
ft.
16
14
12
12
-
200 ft.
16
14
12
10
-
-
LUBRICATION
Tools are properly lubricated at the factory and are ready for use. Tools should be
relubricated regularly (UNPLUG TOOL first) every sixty days to six months, depending on
usage. (Tools used constantly on production or heavy-duty jobs and tools exposed to
heat may require more frequent lubrication.) This lubrication should only be attempted by
trained power tool repairmen.
2