Thread: MT5 adapter wearing out.

called the supplier about the issue, the service tech mentioned that it could not be caused by the bearings or bores being out of line and to email photos of the wear.
decided to take the plunge "as it would be a pain if the lathe had to be returned for repairs", and lapped the spindle taper using fine metal polish and oil,

Switched from the adapter and mt5 test bar frequently for about 1/2 hr, and ran the lathe on 100 rpm.
It worked, the adapter stays tight even at the highest rev, and takes a dam hard hit to remove.
what ever it was, it must have been out by a fraction, as the fine metal polish does not remove much material.

It is good to hear that you solved it without major headaches. Enjoy using it.

Dean

Could the problem have been that there was a thin film of oil in the bore or on the adapter ? Russell

Originally Posted by rusty steel

Could the problem have been that there was a thin film of oil in the bore or on the adapter ? Russell

Something like that , maybe transport grease that had dried to hard film in the small end .

Cleaned the taper using wax and grease remover.
the adapter or testbar would still spin in the spindle if any oil, or the slightest remains of blue were on the taper.
could feel it grab in the same spot while using the polish, took some time to get a consistent polished surface on the adapter.