MK Products Prince XL/Spool Gun - Manual (Page 22)

Prince™ XL/Spool Gun - Owner's Manual Page 22
TROUBLESHOOTING GUIDE
Trouble Cause Remedy
No wire feed at torch,
feeder not operating,
i.e. no slave motor or
brake solenoid.
4 amp fuse (F1) in feeder/control
box blown.
Micro-switch defective/not being
activated.
Broken electrical cable.
Replace (F1) fuse with 4A.
Replace switch. Check switch for
operation.
Check micro-switch wires for
continuity.
No wire feed at torch,
feeder operating
properly.
4 amp fuse (F1) in feeder/control
box blown.
Bad potentiometer.
Broken electrical cable.
Bad speed control/PCB.
Check motor leads for shorts;
then replace fuse.
Check potentiometer with meter.
Check motor and potentiometer wires
for continuity.
See specific cabinet/control box
owners manual for speed control
operation.
Wire feeds, but
welding wire is not
energized.
Loose or no cable connections.
Contactor control cable loose or
in wrong position.
Welding power source.
Check all power connections.
Check power supply owners manual
for location and type of contactor
signal required, i.e., closing or 115
VAC.
Check power source manual.
Wire feeds erratically. Excessive spool drag pressure.
Dirty or worn conduit.
Incorrect pressure on drive rolls.
Idler roll stuck.
Wrong size contact tip.
Decrease spool drag pressure.
Blow out or replace conduit.
Adjust pressure at both feeder and
torch.
Check for lock washer under idler roll,
or replace if damaged.
See contact tip table.
Wire feeds one speed
only.
Bad potentiometer.
Broken electrical cable.
Bad speed control.
Check with meter.
Check potentiometer wires for
continuity or short.
See specific cabinet/control owners
manual for speed control operation.
Wire walks out of drive
rolls.
Idler roll upside-down.
Rear wire guide missing.
Place groove in idler roll toward top.
Replace wire guide
Poor gas/water flow Incorrect placement of barrel
insulator Slide barrel insulator down and thread
until it bottoms out, covering coolant
ports and exposing gas ports.