On 6/11/2019 6:49 PM, Jim Wilkins wrote:
My home made sawmill uses L095 Lovejoy couplers to connect the engine
to the transmission, and their set screws loosen unless I pull very
hard on a long hex wrench. The cause may be the large inertia of the
bandsaw wheels, which are from a motorcycle. When the
vee-belt-tightening drive clutch is loose the belt slips freely over
the pulleys, but when stopping the belt still grabs enough to spin the
engine after it's shut off. Thus the couplers see torque in both
directions.

This suggests that adding a second set screw to lock the first does
help.
https://www.hobby-machinist.com/thre...-screws.36903/

What's your experience?




I remember something like that being done for an air metering screw on a
PCP air rifle. First set screw obstructs the passage, and the second
one backs it up and locks it in place.