Kemppi Promig 100 - Manual (Page 11)

Promig 100/0450 – 11 ©
COPYRIGHT KEMPPI OY
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2.2.5. Mounting and locking of wire reel (Promig 501, 501L and 530)
LOCKED OPEN
- Release locking nails of wire reel hub by turning locking knob a quarter round.
- Mount the reel at its place.
Note rotating direction of reel!
- Lock the reel with locking knob, locking nails of hub remain to outside position and will
lock the reel.
Check that in filler wire reel there are no parts sticking out, which could e.g. chafe
against chassis or door of wire feed unit. Dragging parts might expose chassis of
wire feed unit under voltage.
2.2.6. Automatic wire feed to intermediate cable and gun
Automatic wire feed in Promig wire feed units makes change of wire reel more rapid. In reel
change the pressure of feed rolls need not to be released and filler wire goes automatically to
correct wire line.
- Make sure that groove of feed roll match the diameter of welding wire used. Feed roll groove
is selected by moving the groove selecting washer (28).
- Release the wire end from reel and cut off 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 (file off
if necessary). A sharp edge may damage the wire guide tube of intermediate cable and gun
as well as contact tip.
- Draw a bit of loose wire from wire reel. Feed wire through back liner to feed rolls. Don’t
release pressure of feed rolls!
- Press the switch for running-in of wire on the reel box of the Promig 501, 501L and 530 and
push the wire a bit until the wire runs through the feed rolls into the intermediate cable. See
that wire is in grooves of both feed roll pairs!
- Press the gun switch and feed a bit wire until wire goes through feed rolls of the sub-feeder 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).
Then it might be possible that you must open feed rolls and feed wire manually through feed
rolls.
2.2.7. Adjustment of pressure
Adjust the pressure of feed rolls with the control screw (20) so that the wire is fed into the
wire guide tube evenly and allows a little braking when coming out from the contact tip without
slipping at the feed rolls.
Excessive pressure causes flattening of the filler wire and damage to the coating.
It also causes undue wear of the feed rolls as well as friction.