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Monarch series 60 headstock oil leak into gearbox?


Mar 19, 2022
Is it possible for headstock oil to leak into the quick change gearbox on a monarch 60/61 lathe? I have a 1953 16x78 lathe and when I fill the headstock to the correct level it slowly leaks down and the gearbox sight glass goes up at about the same rate. I thought these were two separate compartments- is this a common problem?
There is rope packing and an adjusting collar behind each of the gear selector arms. Might try tightening those up some.