22
Set Up and Reconditioning Rotors
1. Install a silencer band on the
mounted rotor. Stretch the band
around the rotor and hook the metal
loop over a lead weight.
Figure 22 – Attach silencer band
2. Center the twin cutter to the rotor.
The twin cutter should be
approximately parallel to the lathe
spindle.
Figure 23 – Center the twin cutter
3. Install the safety shield. Review the cautions and dangers section and the
general safety information at the beginning of this manual.
Always wear safety glasses or a face shield. Cutting or grinding on an
exposed surface such as a rotor will produce flying chips and debris.
4. Adjust the drive belt to match the
rotor size. Use the outer pulley
groove for passenger car and most
light duty truck rotors. Choose one of
the inner pulley grooves when
machining medium duty and larger
truck rotors and some solid rotors.
Figure 24 – Adjust drive belt location
5. Make sure that the tool bits clear the rotor surfaces and the silencer band.
Give the rotor a full turn by hand and watch for clearance all the way around.
6. Turn the lathe ON.
7. Turn each tool bit control (the outer knurled knobs) clockwise until the tool
bits just contact the rotor surfaces.
