Kemppi FastMig MSF 53 Operating Manual

Also see for FastMig MSF 53: Service manual

Contents

Kemppi FastMig MSF 53 Operating Manual Manual pdf 12 page image

10FastMig MSF 53, 55, 57 / © Kemppi Oy / 1515EN2.4 MOUNTING AND LOCKING OF WIRE SPOOLLOCKED OPEN• Release locking nails of wire reel hub by turning locking knob a quarter round.• Mount the spool at its place. Note rotating direction of spool!• Lock the spool with locking knob, locking nails of hub remain to outside position and willlock the spool.AB• Release the locking nub (A)!• Mount the spool at its place. Note rotating direction of spool.• Lock the spool with locking nut.NOTE! Check that in filler wire reel there are no parts sticking out, which could e.g. chafe againstchassis or door of wire feed unit. Dragging parts might expose chassis of wire feed unit undervoltage.2.5 AUTOMATIC WIRE FEED TO GUNAutomatic wire feed makes change of wire reel more rapid. In reel change the pressure of feedrolls need not to be released and filler 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 off the bent length. Be careful that the wire doesnot spill from the reel to sides!• Straighten about 20 cm of the wire and see that the end of it has no sharp edges (file off ifnecessary). A sharp edge may damage the wire guide tube and contact tip of the weldinggun.FastMig™ MSF wire feed units:• Draw a bit of loose wire from wire reel. Feed wire through back liner to feed rolls. Do notrelease pressure of feed rolls!• Press the gun switch and feed a bit wire until wire goes through feed rolls to gun. See thatwire 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). Inthat case you might have to open feed rolls and feed wire manually through feed rolls.2.6 ADJUSTMENT OF PRESSUREAdjust the pressure of feed rolls with the control screw (20) so that the wire is fed into the wireguide tube evenly and allows a little braking when coming out from the contact tip withoutslipping at the feed rolls.NOTE! Excessive pressure causes flattening of the filler wire and damage to the coating. It alsocauses undue wear of the feed rolls as well as friction.