Jackle maxiMIG 250 Betriebsanleitung Seite 29

Malfunction/error
Porous weld seam
Poor weld performance
Wire burns back into current
contact tip at start of process
Operating manual
Cause
workpiece surface polluted
(paint, rust, oil, grease)
no shielding gas
(solenoid valve not
opening)
insufficient shielding gas
gas nozzle polluted
1 mains phase not
connected
deficient wire feed,
feed rollers idling
maxiMIG 250/300
Remedy
clean surface
check / exchange
solenoid valve
check shielding
gas at pressure
reducer
check gas line for
leakage
clean gas nozzle
check mains fuse
check mains cable
see chapter 15
wire feed
Page 26