BUG-O Systems CW-11 - Manual (Page 9)

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CWO-3535 LN-9 WIRE FEEDER CONTROLS (for further information refer to
Lincoln Electric LN-9 Wire Feeder Operators Manual)
A. WIRE BURN BACK CONTROL:
This control provides a precise time delay that allows the wire to be burned off at the end of the weld.
This is useful for those applications where higher speed, fine wire feeding is used and there is a
tendency for the electrode to overrun at the end of the weld and cause “sticking” in the crater. The
delay is adjustable for optimum burn back depending on wire size, process, procedure, Etc.
B. WIRE POLARITY CONTROL:
Set the switch to the same polarity as the electrode lead connection to the power source. If the switch
is not set for the correct polarity the wire feeder will stop welding shortly after the arc is struck.
C. WIRE DIRECTION CONTROL:
Controls the direction the wire is being feed true the feeder. UP to return wire to the spool. DOWN to feed
the wire to the gun.
D. VOLT / WIRE SPEED METER:
A three-digit meter is provided to set and monitor the welding procedure. The arc voltage is displayed in volts,
and the wire feed speed are displayed in either inches/minute or meters/minute.
E. METER SELECTION SWITCH:
When the METER SELECTION SWITCH is set to “VOLTS” position, the meter reads the arc voltage setting as
adjusted by the VOLTAGE CONTROL. The three “WIRE SPEED” positions include an “ENGLISH” position, for
the meter readings in inches/minute; and “LO” and “HIGH” range “METRIC” positions, for meter readings in
meters/minute.
F. VOLTAGE CONTROL:
Increases and decreases the voltage in conjunction with the METER SELECTION SWITCH. Adjustments can be
made before and during the welding operation.
G. WIRE SPEED (CURRENT) CONTROL:
Increases and decreases the wire speed in conjunction with the METER SELECTION SWITCH. Adjustments
can be made before and during the welding operation.
H. ACTUAL / SET VALUE JOG BUTTON:
After the weld has been started the “ACTUAL” voltage or wire speed can be read by pressing the “SET-
ACTUAL” push button. The METER SELECTION SWITCH must be set in the desire position. When the push
button is not being operated the meter continues to read the “SET” value
I. COLD INCH SWITCH:
The COLD INCH SWITCH when pressed energizes the wire feeder but not the gas solenoid or the welding
power source.
J. WIRE HOT / COLD SELECTOR:
The two position switch performs a dual function. In the “down” position the wire may be fed electrically cold. In
the “up” position the wire is electrically hot when feeding and the contact circuit is controlled only
by the WELD ON-OFF SWITCH.
K. WELD ON / OFF:
The “OFF” position allows the operator to rotate the machine without welding to check the wire placement as well
as the cam setting. The “ON” position will start the entire weld operation based on the operators settings,
including machine rotation.