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A-2
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK CAN KILL.
• Turn the input power OFF at the
welding power source before
installation or changing drive rolls
and/or guides.
• Do not touch electrically live parts.
• When inching with the gun trigger,
electrode and drive mechanism are
"hot" to work and ground and
could remain energized several
seconds after the gun trigger is
released.
• Welding power source must be connected to
system ground per the National Electrical Code
or any applicable local codes.
• Only qualified personnel should perform mainte-
nance work.
------------------------------------------------------------------------
WELD CABLE SIZE
Table A.1 located below are copper cable sizes rec-
ommended for different currents and duty cycles.
Lengths stipulated are the distance from the welder to
work and back to the welder again. Cable sizes are
increased for greater lengths primarily for the purpose
of minimizing cable drop.
RECOMMENDED CABLE SIZES (RUBBER COVERED COPPER - RATED 167°F or 75°C)**
AMPERES
PERCENT
DUTY
CYCLE
200
60
200
100
225
20
225
40 & 30
250
30
250
40
250
60
250
100
300
60
325
100
350
60
400
60
400
100
500
60
** Tabled values are for operation at ambient temperatures of 104°F(40°C) and below. Applications above 104°F(40°C) may require cables
larger than recommended, or cables rated higher than 167°F(75°C).
INSTALLATION
TABLE A.1
CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK CABLES
0 to 50Ft.
50 to 100Ft.
(0 to15m)
(15 to 30m)
2
2
4 or 5
3
3
2
1
1
1
2/0
1/0
2/0
3/0
2/0
AutoDrive 4R90
100 to 150 Ft.
(30 to 46m)
2
2
2
2
3
2
3
2
3
2
2
1
1
1
1
1
1
1
2/0
2/0
1/0
2/0
2/0
2/0
3/0
3/0
2/0
3/0
150 to 200 Ft.
200 to 250 Ft.
(46 to 61m)
(61 to 76m)
1
1/0
1
1/0
1
1/0
1
1/0
1
1/0
1
1/0
1
1/0
1
1/0
1/0
2/0
2/0
3/0
2/0
3/0
3/0
4/0
3/0
4/0
3/0
4/0
A-2
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