Operation; General; Preweld Operation; Smaw (Stick) Welding, Carbon Arc Gouging - Thermal Arc Excel-Arc 500 Operating Manual

SECTION 4:

OPERATION

4.01 General

Before operating this system, be sure that all installation
instructions have been accomplished. When operating this
system, observe all applicable Safety Warnings listed in
this and related system manuals.
The operating instructions in this manual pertain only to
the EXCEL-ARC® 500 and 6045 welding machines.
Consult operating instructions for components used with
this system before operating.
A thermostatically controlled fan motor is standard on
this unit. The fan motor starts and stops automatically
when a predetermined temperature has been reached.

4.02 Preweld Operation

1. Connect welding leads to terminals on front panel.
Disconnect line voltage from the unit before
making any connections inside unit. Turn off
fused disconnect switch that supplies power
to welding machine, and remove its fuse.
ELECTRIC SHOCK can kill! Do not touch live
electrical parts, including the output terminals
and electrode.
2. If used, connect remote control wire assembly and
gun switch to welding machine. Connect feeder
receptacle to wire electrode feeder system.
3. Refer to other manuals for component connections.
4. Set Output Control to desired value.
5. Set the remote/local control switch in the desired
mode.
August 22, 2005
WARNING
EXCEL-ARC 500, 6045
4.03 SMAW (Stick) Welding, Carbon Arc
Gouging
(100005A-1, -3, -5, and -7)
Refer to Section 2.06 and Figure 2-1 for controls (numbers
in parenthesis refer to callouts on Figure 2-1).
1. On 100005A-3, and -7 set the CC/CV selector switch
to CC position.
2. Hold electrode clear of work. Be sure the Remote-
Local Switch (3) is set to LOCAL position.
3. Turn Input Contactor Control Switch (2) to ON position.
4. Strike arc. Adjust Welding Output Control (8) if
required. Adjust Arc Force Control (7) to desired level.
5. At the conclusion of welding, break arc, and turn Input
Contactor Control Switch (2) to OFF position.
4.04 Welding, Semiautomatic or
Automatic
Refer to Figure 2-1 for controls.
1. On 100005A-2, -3, -6, and -7 set Remote/Local Output
Control Switch (3) to LOCAL.
Set Output Control Switch (3) to REMOTE
when using a feeder which controls the
voltage, and remote voltage control is desired.
2. On 100005A-3 and -7 set the CC/CV Selector Switch
to CV position.
3. Place Input Contactor Control Switch (2) in ON position
(Power ON).
4. Inch wire electrode to position over work; see related
owner's manuals.
5. Depress gun switch trigger and strike arc.
NOTE
4-1