6 Maintenance
6.3 Weld Ground Brush Replacement – Type I
6-4
162068-1CD
162068-1CD
MH-SERIES
POSITIONER
7. Slide the old brush out of the housing and replace it with the new one.
8. Put the brush holder back into housing compartment until the both
holes on the nut plate are aligned with holes in the housing.
9. Insert both screws through housing and into nut plate. Thread the
screws into nut plate loosely.
10. Push the brush holder up in front of the retaining edge and hold
steady.
11. Squeeze the brush retaining spring and push the brush against the
faceplate then release. The spring must hold the brush firmly against
the face plate (
).
12. Tighten the screws to 6.0 N•m (4.4 lbf-ft.).
13. Insert the ground cables onto the ground posts.
CAUTION
The weld ground brush must be affixed hold and evenly against the
faceplate. Uneven contact can subject the gear reducer bearing to weld
current.
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