Hubless Brake Rotors
Select a hubless adapter which will fit inside the drum
against the flat surface. Be sure to remove any burrs with
sandpaper or wire brush. Slip the hubless adapter onto the
arbor followed by a spring, centering cone, the drum, and
another hubless adapter. Fill out the remaining shaft with
various adapters and/or spacers as needed.
6. With the power turned off, mount the micro-dial twin
cutter assembly on the tool holder stud bolt extending the
bolt through the cast slot. The slot of the twin cutter should
be approximately parallel to the lathe spindle and the center
of the twin cutters lined up with the centerline of the rotor.
NOTE: It helps to use the safety shield mounting bolt as a
guide to line up twin cutters with the centerline of rotor.
7. Secure the twin cutter to the tool holder with the self
aligning nut and washer assembly. Tighten the nut firmly.
8. Install the safety shield if it was removed for storage
then review the cautions and dangers section and the
general safety information at the beginning of this
manual. The safety shield is easily screwed onto the twin
cutter in the threaded mounting hole provided.
IMPORTANT NOTE
:
Do not overtighten arbor nut when mounting rotors on
the spindle. The pressure of one hand on the wrench is
sufficient to tighten. If centering cones, adapters and
spacers are not clean and free of nicks and burrs or
foreign matter when the arbor is tightened, it could
introduce spindle runout or “wobble”.
9. With the power turned off, install a silencer band that is
appropriate for the rotor being machined. Stretch the band
around the rotor and hook the metal loop over a lead weight.
10. Adjust both micrometer tool-feed knobs on the tool
holders making sure the cutting bits are opened wider than
the width of the rotor.
11.Turn the cross feed hand wheel clockwise and
manually feed the cutting tools inward stopping near the
center of the rotor. Remember, the hand wheel will not turn
manually unless the cross feed lock knob is loosened.
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