1HP One stage Dust Collector Manual
11
Check with a qualified electrician or service personnel if the grounding
instructions are not completely understood, or if in doubt as to whether the
machine is properly grounded.
Use only 3-wire extension cords that have 3-prong grounding type plugs and
matching 3-conductor receptacles that accept the machine’s plug, as shown
in Fig. A. Repair or replace damaged or worn cord immediately.
2. Grounded, cord-connected machines intended for use on a supply
circuit having a nominal rating less than 150 volts:
If the machine is intended for use on a circuit that has an outlet that looks
like the one illustrated in Fig. A, the machine will have a grounding plug that
looks like the plug illustrated in Fig. A. A temporary adapter, which looks like
the adapter illustrated in Fig. B, may be used to connect this plug to a
matching 2-conductor receptacle as shown in Fig. B if a properly grounded
outlet is not available. The temporary adapter should be used only until a
properly grounded outlet can be installed by a qualified electrician. The
green-colored rigid ear, lug, and the like, extending from the adapter is used,
it must be held in a place with a metal screw. NOTE: In Canada, the use of a
temporary adapter is not permitted by the Canadian Electric Code.
In all cases, make certain that the receptacle in question
is properly grounded. If you are not sure, have a
qualified electrician check the receptacle.
EXTENSION CORDS
Use proper extension cords. Make sure your extension cord is in good
condition and is a 3-wire extension cord which has a 3-prong
grounding type plug and matching receptacle which will accept the machine’s
plug. When using an extension cord, be sure to use one heavy enough to
carry the current of the machine. An undersized cord will cause a drop in
line voltage, resulting in loss of power and overheating. Fig. D.1 or D.2,
shows the correct gauge to use depending on the cord length. If in
GROUNDED OUTLET BOX
CURRENT CARRYING PRONGS
GROUNDING BLADE
LONGEST OF 3 BLADES
GROUNDING MEANS
ADAPTER
Fig. A
Fig. B
GROUNDED OUTLET BOX
