EN
2.10 Automatic wire feed to gun
Automatic wire feed makes change of wire reel more rapid. In reel change the pressure of feed
rolls need not to be released and ller wire goes automatically to correct wire line.
• Make sure that groove of feed roll matches the diameter of welding wire used.
• Release the wire end from reel and cut o the bent length. Be careful that the wire does
not spill from the reel to sides!
• Straighten about 20 cm of the wire and see that the end of it has no sharp edges (le
o if necessary). A sharp edge may damage the wire guide tube and contact tip of the
welding gun.
• Draw a bit of loose wire from wire reel. Feed wire through back liner to feed rolls. Do not
release pressure of feed rolls!
• Press the gun switch and feed a bit wire until wire goes through feed rolls to gun. See
that wire is in grooves of both feed roll pairs!
• Press still the gun switch until wire has come through contact tip.
Automatic feed may sometimes fail with thin wires (Fe, Fc, Ss: 0,6...0,8 mm, Al: 0,8...1,0 mm). In
that case you might have to open feed rolls and feed wire manually through feed rolls.
NOTE! Check that the wire or wire reel does not touch the equipment body, there is a danger of
short circuit
2.11 Adjustment of pressure
Adjust the pressure of the feed rolls with the control screw so that the wire is fed into the wire
guide tube evenly and allows a little braking when emerging from the contact tip, without
slipping on the feed rolls.
NOTE! Excessive pressure will cause the ller wire to atten and damage its coating, as well as
undue wear and tear of the feed rolls and friction damage.
2.12 Adjustment of tightness of spool brake
Brake force can be adjusted through the hole in the spool hub’s locking device of spool hub by
screwing the control screw with a screwdriver. Adjust the braking force so that it is sucient
to prevent the wire from becoming too loose on the spool and spilling when the spool stops
rotating. The greater the wire feed speed, the greater the braking force required. Do not keep
the brake unnecessarily tight, since this will impose a strain on the motor.
7
© Kemppi Oy / 1336
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