Jet JDP-20VS-1, Operating Instructions And Parts Manual

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9
6.0 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.
The JDP-20VS-1 is pre-wired for single-phase, 115-
volt. The machine can also be run on 230V power.
See
sect. 6.3.
The JDP-20VS-3 is pre-wired for 3-phase, 230-volt.
The machine can also be run on 460V power. See
sect. 6.3.
The JDP-20VST is prewired for 3-phase, 230-volt
only.
The drill press is not provided with an electrical plug;
you may either attach a proper UL/CSA-listed plug,
or “hardwire” the machine directly to a service panel.
6.1 GROUNDING INSTRUCTIONS
This tool 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. This tool is equipped with
an electric cord having an equipment-grounding
conductor. If an electrical plug is to be used, the plug
must be inserted into an appropriate outlet that is
properly installed and grounded in accordance with
all local codes and ordinances.
Improper connection of the
equipment-grounding conductor can result in a
risk of electric shock. Check with a qualified
electrician or service person if you are in doubt
as to whether the outlet is properly grounded.
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.
Repair or replace damaged or worn cord
immediately.
If hardwired:
Permanently connected tools: This tool should be
connected to a grounded metal permanent wiring
system; or to a system having an equipment-
grounding conductor. Make sure a disconnect is
available for the operator. During hard-wiring of the
machine, make sure the fuses have been removed
or the breakers have been tripped in the circuit to
which the drill press will be connected. ALWAYS
FOLLOW PROPER LOCK-OUT/TAG-OUT PRO-
CEDURES.
6.2 Electrical cabinet access (JDP-
20VST only)
To open electrical cabinet, press latch button and
rotate latch to the left. A set of keys is provided for
locking the cabinet door.
6.3 Voltage conversion (JDP-20VS-
1/3 only)
1. Reconnect leads in motor junction box,
according to diagram inside junction box cover.
Diagrams are also found at back of this manual.
(If discrepancies should occur, diagrams on
machine take precedence.)
2. Remove pulley cover and reconnect wire on
LED display accordingly (see Figure 6-3).
3. If using a plug, connect a proper UL-listed plug
for the incoming voltage.
Figure 6-3: LED display connection
Make sure incoming current matches power
requirements of the drill. When machine is
connected properly, spindle turns clockwise in a
conventional drilling rotation. If spindle does not turn
clockwise on the 3-phase drill press when switch is
set to forward rotation, disconnect machine from
power supply and reverse any two of the three
power leads (not the green ground wire).
Note: The work light has a dedicated power cable
and continues to operate on 110V.
6.4 Extension cords
The use of extension cords is discouraged; try to
position equipment within reach of the power
source. If an extension cord becomes necessary, be
sure it is heavy enough to carry the current your
product will draw. An undersized cord will cause a
drop in line voltage resulting in loss of power and
overheating. Table 2 shows recommended size to
use depending on cord length and nameplate
ampere rating. If in doubt, use the next heavier
gauge. The smaller the gauge number, the heavier
the cord.
Ampere
Rating
Volts Total length of cord in feet
More
Than
Not
More
Than
120
240 25
50 50
100 100
200 150
300
AWG
0 6 18 16 16 14
6 10 18 16 14 12
10 12 16 16 14 12
12 16 14 12
Not
Recommended
Table 2: extension cord recommendations