Delta 46-745 Instruction Manual Page 5

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A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should
be protected with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have 3-
prong grounding type plugs and matching receptacle which will accept the machine’s plug. Before connecting the
machine to the power line, make sure the switch (s) is in the “OFF” position and be sure that the electric current is of
the same characteristics as indicated on the machine. All line connections should make good contact. Running on low
voltage will damage the machine.
DO NOT EXPOSE THE MACHINE TO RAIN OR OPERATE THE MACHINE IN DAMP LOCATIONS.
Fig. A Fig. B
GROUNDED OUTLET BOX
CURRENT
CARRYING
PRONGS
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES
GROUNDED OUTLET BOX
GROUNDING
MEANS
ADAPTER
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 out-
let 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 must
be connected to a permanent ground such as a properly
grounded outlet box. Whenever the adapter is used, it must
be held in 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
THE RECEPTACLE IN QUESTION
IS PROPERLY GROUNDED. IF YOU
ARE NOT SURE, HAVE A QUALI-
FIED ELECTRICIAN CHECK THE
RECEPTACLE.
1. All grounded, cord-connected machines:
In the event of a malfunction or breakdown, grounding pro-
vides a path of least resistance for electric current to reduce
the risk of electric shock. This machine is equipped with an
electric cord having an equipment-grounding conductor and
a grounding plug. 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 conduc-
tor can result in risk of electric shock. The conductor with
insulation having an outer surface that is green with or with-
out yellow stripes is the equipment-grounding conductor. If
repair or replacement of the electric cord or plug is neces-
sary, 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 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.
POWER CONNECTIONS
MOTOR SPECIFICATIONS
Delta Model 46-745 (115 volt) and Delta Models 46-746 and 46-765X (230 volt) operate on 50/60 HZ alternating cur-
rent and provide a no-load spindle speed of 0-3200 RPM. Before connecting your tool to the power source, make sure
the switch is in the “OFF” position. NOTE: The specifications on the motor will read “230 volt-3 phase”. This is correct
and is accomplished with a high frequency inverter. IMPORTANT:The motor cannot be run without the inverter.
Do not change input voltages. This action will cause severe damage to the inverter.
GROUNDING INSTRUCTIONS
THIS MACHINE MUST BE GROUNDED WHILE IN USE TO PROTECT THE OPERATOR FROM
ELECTRIC SHOCK.
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