Tweco 2460 Heavy Duty CC CV Control Wire Feeder - Manual (Page 17)

OPERATION
Prewelding Checks
Before attempting to operate the Model 2460
Heavy Duty CC/CV Wire Feeder, make certain that
all installation instructions, including those for the
welding machine (power source), and the welding
gun and cable, have been carried out.
1. With the feeder properly connected to the power
source and the work cables properly connected
from power source to work and from feeder to work,
turn on the power source.
WARNING: When the power
source is turned on, the elec-
trode (welding wire) is electri-
cally “hot”. Do not permit it to
touch any metal or a welding arc
may be established which may
be injurious to someone’s eyes
(flash) or skin (burn).
2. Select CC/CV characteristic on motor control
circuit and set switch accordingly.
3. Determine desired operating voltage in case of
a CV power source or desired operating current in
case of a CC power source and set power source
accordingly.
4. Set control on feeder to an approximate 3
position on the dial.
NOTE: When using a CV power source,
increasing dial position will increase wire
feed speed and as a result increase weld-
ing current.
When using a CC power source, increasing
dial position will increase wire feed speed
and as a result will decrease arc voltage.
Welding
1. Position the gun above the workpiece but do not
touch the electrode to the work as this will cause arc
flash. With the gun in the proper position and eyes
fully protected, pull the gun switch which will cause
an arc to be initiated.
2. Releasing the gun switch trigger will cause the
wire to stop feeding. At this time the gun must be
pulled away from the work in order to extinguish the
arc.
3. When the welding has been completed, or at the
end of the work day, it is recommended that the
power source and feeder be turned off.
430429-249
OPERATION
May 22, 1997 Revised 4-1