Lincoln Electric MAGNUM IM887 - Manual (Page 13)

MAGNUM 250 LX - OPERATING INSTRUCTIONS
NARROW
WIDE 3/64th
.030
or .035
LID
RELEASE LEVER
SHAFT
DRIVE ROLL
7
Liner Installation:
Over tightening the Liner Retaining Set Screw can cause damage
to the Plastic Liner and cause wire feeding problems.
DIFFUSER SET SCREW NECK LINER
CAUTION
Drive Roll Groove Selection
The drive roll has two grooves. A wider groove for feeding 3/64”
(.047) wire and a narrow groove for feeding .030-.035” (0.8-
0.9mm) wire to accommodate changes in the wire size used.
Changing between the grooves simply requires reversing the
drive roll.
A. Drive Roll Orientation
B. Changing Drive Roll Orientation
1. Flip lid open, then move release lever to the up position.
2. Take wrench (10mm) and loosen drive roll while holding shaft
with flathead screw driver, then flip drive roll.