
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 doubt, use the next heavier gauge. The smaller the gauge number, the heavier
the cord.
Fig. D-1
MINIMUM GAUGE EXTENSION CORD
RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES
Ampere
Total Length
Gauge of
Rating
Volts
of Cord in Feet
Extension Cord
0-6 120
up to 25
18 AWG
0-6
120
25-50
16
AWG
0-6
120
50-100
16
AWG
0-6
120
100-150
14
AWG
6-10
120
up to 25
18 AWG
6-10
120
25-50
16
AWG
6-10
120
50-100
14
AWG
6-10
120
100-150
12 AWG
10-12
120
up to 25
16 AWG
10-12
120
25-50
16
AWG
10-12
120
50-100
14
AWG
10-12
120
100-150
12
AWG
12-16
120
up to 25 14
AWG
12-16
120
25-50
12
AWG
12-16
120
GREATER THAN 50 FEET NOT RECOMMENDED
3. 240 VOLT SINGLE PHASE OPERATION
The motor supplied with your machine is a dual voltage,
120/240 volt motor. It is shipped ready-to-run for 120
volt operation. However, it can be converted for 240 volt
operation.
A qualified electrician should do the conversion, or the
machine can be taken to an Authorized Delta Service
Center. When completed, the machine must conform
to the National Electric Code and all local codes and
ordinances.
The machine is converted by re-wiring the motor for 240
volts, installing a 240 volt plug on the power supply cord
and making sure the switch is one that is rated for 240
volt operation.
Be sure the 240 volt plug is only used in an outlet having
the same configuration as the plug illustrated in Fig. C.
No adapter should be used with the 240 volt plug.
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.
Fig. C
GROUNDED OUTLET BOX
CURRENT
CARRYING
PRONGS
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES
Fig. D-2
MINIMUM GAUGE EXTENSION CORD
RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES
Ampere
Total Length
Gauge of
Rating
Volts
of Cord in Feet
Extension Cord
0-6 240
up to 50
18 AWG
0-6
240
50-100
16
AWG
0-6
240
100-200
16
AWG
0-6
240
200-300
14
AWG
6-10
240
up to 50
18 AWG
6-10
240
50-100
16
AWG
6-10
240
100-200
14
AWG
6-10
240
200-300
12 AWG
10-12
240
up to 50
16 AWG
10-12
240
50-100
16
AWG
10-12
240
100-200
14
AWG
10-12
240
200-300
12
AWG
12-16
240
up to 50 14
AWG
12-16
240
50-100
12
AWG
12-16
240
GREATER THAN 100 FEET NOT RECOMMENDED
7