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I PREPARATION
E. Electrical Supply
The DR520 & DM620 core drills are furnished with 115 volt, single phase motors. These
motors operate within a power range of 110 to 120 volts. Serious damage can result if the
supply line voltage does not fall within this range.
The following wire sizes are recommended when using an extension cord:
DISTANCE
FROM
SOURCE
Wire
Gauge
The DR520 & DR620 core drills are manufactured with a three conductor connector cord
which attaches the motor to the electrical supply. The green wire provided is used to
connect to a permanent ground.
a. Before connecting the drill to the power source, make sure that the voltage and cycles
shown on the name plate of the motor are the same as the available electrical power
supplied.
b. Always properly ground the core drill before attempting to start the motor. The
presence of water during the drilling operation requires that the drill always be
properly grounded.
c. NEVER connect the green wire to a live terminal
The use of 3-prong adapter is prohibited in Canada
by the Canadian Electrical Code.
An adapter, Fig. "B" is available for connecting Fig.
A plugs to two prong receptacles.
grounding ear extending from adapter must be
connected to a permanent ground such as to
properly grounded outlet box.
available for fig "C" plugs.
To connect twist lock plugs like those shown in
figures D and E, insert the plug into a matching
outlet.
When the plug is fully inserted, turn it
clockwise until it locks. This prevents the plug from
being pulled out accidentally. To remove the plug,
twist it counterclockwise to unlock it and remove it
NortonParts.com
from the outlet.
888-634-4289
An iBuy Stores Company
115 volt
115 volt
25
50
FEET
FEET
# 14
# 12
The green
No adapter is
NOTE: RECEPTACLE MUST BE GROUNDED FOR SAFE USE OF
ADAPTER:
IF IN DOUBT CALL A QUALIFIED ELECTRICIAN AND HAVE THE
RECEPTACLE CHECKED FOR GROUND
7
115 volt
115 volt
75
100
FEET
FEET
# 10
# 08
!
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