Operation – Lincoln Electric LN-9 SVM127-A User Manual
Page 32
For Aluminum Wire
Each set of rolls should have their pressure set
independent of the other. To do this, release and
open the other quick release arm while making
each adjustment. Follow the procedure below for
each adjustment.
1.
With low idle roll pressure, load the feeder so
it’s ready for welding.
2.
Run the feeder at a slow speed (about 100
IPM) and reduce the idle roll pressure until the
idle roll stops rotating.
3.
Slowly increase idle roll pressure until the idle
roll just starts to rotate consistently with the
drive roll without slippage, then add an extra
1/4 to 1/3 turn more idle roll pressure.
This pressure setting should be optimum for feed-
ing and to avoid "bird-nesting" by allowing the drive
roll to slip on the wire if a gun cable jam or stop-
page occurs. If using harder or larger dia. alu-
minum wires more idle roll pressure, if necessary,
can be tolerated. However, if the pressure
required to properly feed the aluminum wire also
permits "bird-nesting," or excessive slippage
results in aluminum pickup in the drive roll groove,
the loading on the wire by the gun-cable or wire
reel should be inspected and adjusted.
OPERATION
B-12
B-12
LN-9 Wire Feeder