Functional Description - Delta 17-959L Manual De Instrucciones

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.
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
length of
Ampere cord in
rating Volts
0-6 120 up to 25
0-6 120 25-50
0-6 120 50-100
0-6 120 100-150
6-10 120 up to 25
6-10 120 25-50
6-10 120 50-100
6-10 120 100-150
10-12 120 up to 25
10-12 120 25-50
10-12 120 50-100
10-12 120 100-150
12-16 120 up to 25
12-16 120 25-50
12-16 120
GREATER THAN 50 FEET NOT RECOMMENDED
FOREWORD
DELTA Model 17-959L is a 17" floor model drill press. This heavy-duty machine has a 3/4 HP, 120/240V induction motor,
5/8" capacity chuck and key, cast iron table, rack and pinion elevation mechanism, and external depth stop. The 17-959L
has a tilting table for angle drilling. Side edges and parallel slots are provided for fast workpiece clamping.
NOTICE: The photo on the manual cover illustrates the current production model. All other illustrations contained in
the manual are representative only and may not depict the actual color, labeling, or accessories, and are intended to
illustrate technique only.
Total
Gauge of
feet extension cord
18 AWG
16 AWG
16 AWG
14 AWG
18 AWG
16 AWG
14 AWG
12 AWG
16 AWG
16 AWG
14 AWG
12 AWG
14 AWG
12 AWG
Fig. D-1

FUNCTIONAL DESCRIPTION

GROUNDED OUTLET BOX
CURRENT
CARRYING
PRONGS
GROUNDING BLADE
IS LONGEST OF THE 3 BLADES
MINIMUM GAUGE EXTENSION CORD
RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES
Ampere
rating Volts
0-6 240
0-6 240
0-6 240
0-6 240
6-10 240
6-10 240
6-10 240
6-10 240
10-12 240
10-12 240
10-12 240
10-12 240
12-16 240
12-16 240
12-16 240
7
Fig. C
Total
length of
cord in Gauge of
feet extension cord
up to 50 18 AWG
50-100 16 AWG
100-200 16 AWG
200-300 14 AWG
up to 50 18 AWG
50-100 16 AWG
100-200 14 AWG
200-300 12 AWG
up to 50 16 AWG
50-100 16 AWG
100-200 14 AWG
200-300 12 AWG
up to 50 14 AWG
50-100 12 AWG
GREATER THAN 50 FEET NOT RECOMMENDED
Fig. D-2