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3-8. Common Work Connections
1
3
4
!
Turn Off welding power sources by
placing fuse holders in the Off
position before making any weld
output connections.
!
Do not connect welding output of
different polarities to the same
structure.
!
See ANSI Z49.1 and OSHA Title 29,
Chapter XVII, Part 1910, Subpart Q
(addresses at beginning of manual).
!
Do not handle or come in contact with
two live electrodes at the same time.
!
ARCING can burn skin or damage
electrical equipment. Do not change
position of
the
welding
connectors while welding.
!
Be sure the connectors are secure in
receptacles before welding.
OM-2238 Page 16
!
INADEQUATE
CONNECTIONS can cause serious
damage to input power service and
create
a
hazardous
Connect an electrical cable of
adequate size between the isolated
terminal
and
whenever the isolated terminal is
used.
Electrode Positive Connection:
1
Positive (+) Weld Output Cables
Determine
cable
lengths
according to welding power source Owner's
Manual.
2
Isolated Terminal
cable
3
Negative (−) Weld Output Cables
Determine cable sizes according to welding
power source Owner's Manual. Cable must
4
5
2
reach from negative (−) output receptacle to
WORK
CABLE
isolated terminal.
4
Common Negative (−) Weld Output
condition.
Cable
Cable must be able to carry combined weld
output of all welding power sources using
the
workpiece
common work connections. Use Section 3-7
to select proper cable size.
5
Terminal Lugs
Use lugs of proper amperage capacity and
hole size for connecting to isolated terminal.
and
sizes
Isolated terminal is 1/2 in (12.7 mm) in
diameter.
For Electrode Negative, reverse cable
connections. Positive (+) weld output cables
connect to isolated terminal, negative (−)
weld output cables go to electrode. Common
weld output cable is positive.
5
3
Ref. 801 700 / Ref. 803 170-A
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