Lincoln Electric IM638 Clutched Aluminum Drive Roll Kits K1682 - Manual

Clutched Aluminum Drive Roll Kits
INSTALLATION INSTRUCTIONS
IM638
February, 2006
KP1682 Series
GENERAL DESCRIPTION
The KP1682 series of drive roll kits are optimized to feed aluminum MIG wires with the following wire feeders:
2-Roll Feeders 4-Roll Feeders
LN-25 Synergic 7
LN-7 LN-7
LN-742 LN-742
The drive rolls are specifically designed to minimize any wire deformation while the mechanical clutch is specifi-
cally designed to prevent wire birdnesting by limiting the amount of feeding force on the wire.
The guide tubes are constructed of a high density plastic that supports the wire directly from the drive rolls yet
does not scrape the wire.
Design features of the clutched drive roll system:
• The drive roll pressure is preset to obtain the correct feeding force without deforming the wire. Readjusting
the idle roll tension may place too much force on the wire, thus deforming it. However, too little tension may
allow the wire to slip at the drive rolls. We have preset the tension at the factory. No further adjustment
should be necessary. (2-roll feeders ONLY)
• The clutch is designed to disengage before the wire can birdnest. The slip force is set according to the wire
size. The spring tension is preset at the factory. No further adjustment should be necessary.
• The drive roll and idle roll are manufactured with a groove design that supports the wire without crushing it.
We recommend that for every spool of wire, the rolls be removed and the grooves cleaned of any residual alu-
minum build up. An abrasive string works well. As residual aluminum builds up, the drive rolls will deform the
wire and feeding performance will degrade.
SAFETY
Follow all safety guidelines in your power source and feeder operators manuals and any additional guidelines
covered in this manual.
Table of Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
General Description . . . . . . . . . . . . . . . . . . . . . .1
Kit Sizes and Contents . . . . . . . . . . . . . . . . . . . .2
Installation Instructions (2-Roll Feeders) . . . . . . .3
Installation Instructions (4-Roll Feeders) . . . . . . .4
Recommended Guns, Liners and Tips . . . . . . . .5
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