MK Products WC-1-110 - Manual (Page 13)

Owner’s Manual - Page 12
CC Posa Start Operation
Attach the WC-1 to a CC power source according to the installation
instructions.
Insure power supply high frequency switch is in the “OFF” position, and power
supply is set to DC reverse polarity.
The power supply contactor should be set to “Remote” or “Tig” and the
amperage control set to “Panel” or “Standard” depending on power supply.
Turn the WC-1 power switch to the “ON” position and the Posa Start switch to
the “OFF” position.
Adjust power source to desired amperage for your weld condition.
Press gun trigger and adjust wire feed speed at gun to match current setting.
If approximate wire feed speed is not known, it is better to start with excess
wire feed rather than too little, in order to prevent possible damage to the
contact tip.
Turn Posa Start switch to the “ON” position. Press torch trigger and, using
Run-in Speed Control, adjust wire feed speed to approximately 10% of the
welding wire speed.
Strike an arc; if the wire stubs out, reduce wire feed rate at gun, or increase
amperage setting on power source.
NOTE:
Because the Posa Start Run-in Speed always remains a percentage
of the actual welding wire feed rate, the Posa Start run-in speed
will always slow down or speed up proportional to any adjustment you
now make at the gun. Therefore, if you slow down the welding wire
feed speed, you will have to increase the Run-in Speed setting.
CV Posa Start Operation
(005-0339 kit must be installed)
Attach WC-1 to CV power source according to the installation instructions.
Turn the WC-1 to the “ON” position and the Posa Start to the “OFF” position.
Adjust power source to desired voltage for your weld condition.
Depress gun trigger and adjust wire feed speed at gun to match voltage
setting. If approximate wire feed is not known, it is better to start with excess
wire feed rather than too little, in order to prevent a “burn-back”.
Strike an arc, and adjust wire feed rate at gun until correct condition is
achieved.
Section 7 MAINTENANCE
Maintenance of the torch will normally consist of a general cleaning of the wire
guide system, including tubes, drive rolls, and liners at regular intervals.
Remove spatter build-up from inside of nozzles with a hardwood stick.
The only parts of the spool gun that are subject to normal wear are the contact
tips, gas cups, front and rear liners, wire guides, drive and idler rolls. A supply
of these parts should be maintained on hand.
If repairs do become necessary, any part can easily be replaced by a qualified
shop maintenance person.