Troubleshooting Assuring A Smooth Finish - Pro-Cut PFM 9.0 DRO Technical Manual

WEEKLY MAINTENANCE
Lubricate the cut depth adjustment wedge threads with a thin coat of light machine oil.
Check the slide plate (50-498) for lateral play. Lateral play often causes ridges and machining grooves when a rotor is re-
surfaced. To check for lateral play, grab the slide plate assembly and try to wiggle it side to side. If there is motion, you will
need to tighten the Gib (See "Tightening the Gib" on Page 32).
TROUBLESHOOTING
NOTE
Brake performance is dependent upon rotor surface finish as well as minimizing lateral run-out. The
Pro-Cut lathe is designed to give you a superior surface finish on any rotor as long as proper maintenance
is followed.
The Pro-Cut 9.0 DRO should
provide a smooth surface
finish on every cut, free of
Minimizing vibration during machining is the key to high-quality surface finish. It is critical that all con-
chatter, tone, or roughness.
If your machine leaves a sub- tact points between the rotor and the lathe are secure – specifically, the connections between lathe and
standard, "chattery" or rough
adapter; the slide plate and the lathe; the cutting head and the plate; and the tips and the tool holders.
finish, you need to find the
problem. The following pages Looseness in any of these areas will compromise lathe performance and surface finish.
are the common sources of
poor surface finish and ways
to remedy the problem.
PG / 800.543.6618
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ASSURING A SMOOTH FINISH