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F-23
TROUBLESHOOTING & REPAIR
F-23
POWER-ARC 4000
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 fingernail. 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
assembly 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
terminal 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 cor-
ner of the terminal 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.
BRUSH REMOVAL AND REPLACEMENT (continued)
FIGURE F.6 - BRUSHES RETAINED WITH CABLE TIE
CABLE
TIE
BRUSHES