The amount of use and working environment should be taken into
consideration when planning the frequency of maintenance of MIG
guns. Careful use and preventive maintenance will help to ensure
trouble-free operation and long lifetime for the gun.
Due to high temperatures and wear, the welding end of MIG gun
requires most maintenance but also condition of other parts should be
checked regularly.
Welding end
• Remove welding spatter and check condition of insulations, contact
tip and gas nozzle. Replace damaged and worn-out parts. Use only
original Kemppi spare parts.
• Check condition of insulations. Replace damaged insulations immediately.
• Check that in the discharge holes for shielding gas there is no spatter
or dirt.
• Use the gun in a proper way:
- Do not remove welding spatter by hammering the gun against the
work piece!
- Do not use sharp tools, because damaging of surfaces will increase
stickening of spatter!
- Do not bend neck body of gun or fasten the gun from neck body
against bench etc., for it may cause destruction of the neck!
- Do not use the gun as hammer!.
3. USE AND MAINTENANCE
5
• Before driving the wire into gun check that the wire end is straight at
a length of approx. 200 mm and the tip blunt (le if necessary). A
sharp wire tip may damage wire liner and contact tip of gun.
• Watch out for wire sticking out from welding end of gun. Do not direct
the gun towards people or work piece, instead make sure that the wire
comes freely out in the air.
