Virtually all PTO's have a method of checking gear clearance through some type of access hole that allows you to monitor the gear movement.
Jerry
From what I can see the only possibility of an access hole on this model might be that protuberance just over the shift shaft, however, that projection does not appear to have been used or drilled/tapped for any purpose. There are no other access holes on this particular model, on one side the only openings are for shaft projection, on the other side the only openings contain the drive shaft bearings and the shift shaft movement chamber. I do appreciate all the detailed backlash information. I intend now to experiment; first remove a gasket layer, then add layer if removal doesn't quiet the gear noise. Would be great to have it running more smoothly. Thanks for all the help.
Dale
