Lincoln Electric POWER-ARC 4000 SVM103-A - Manual (Page 63)

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TROUBLESHOOTING & REPAIR
POWER-ARC 4000
F-22
BRUSH REMOVAL AND REPLACEMENT (continued)
FIGURE F.6 - BRUSHES RETAINED WITH CABLE TIE
CABLE
TIE
BRUSHES
PROCEDURE
1. Remove the spark plug wire.
2. Open the brush holder assembly cover.
Squeeze the 2 tabs and depress the cover
at the top with a screw driver or your fin-
gernail. The cover will drop open on its
bottom hinge.
3. With the 1/4” nut driver, remove the 2
screws that hold the brush holder assem-
bly in place.
4. With the needle nose pliers, gently remove
the black and the red wires.
Note: The red wire is inboard. “RED” is
marked on the brush holder beside the termi-
nal for the red wire.
5. To change the brushes, use the slot head
screw driver to pop off the plastic retainer
on the back of the brush holder assembly.
6. Remove the old brush assemblies and
insert the new ones. One corner of the ter-
minal clip is beveled so that the brush can
go in only one way.
7. Snap the plastic retainer back onto the
brush holder. The brushes may need some
repositioning; wiggle them slightly to help
them seat properly on the slip rings.