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 replacing the switch with 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.

GROUNDED OUTLET BOX

CURRENT

CARRYING

PRONGS

GROUNDING BLADE

IS LONGEST OF THE 3 BLADES

Fig. C

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.

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

 

 

 

 

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

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

 

 

 

 

Fig. D-2

6 - English

Page 6
Image 6
Delta 28-206, 28-276 instruction manual Extension Cords, Fig. C