I ran into a problem with my new PM1440GT lathe while trying to set it up to cut metric threads. I needed a 1.0 pitch so I installed the change gear 28 in the upper location to mesh with the 120 gear. I couldn't get the gears to mesh properly.
I observed that the 127 gear was now contacting the collar on the shaft next to the 28 upper change gear. The only way I could gain enough clearance was to completely remove the offending collar. But I can't run the machine with the collar removed because the 28 gear has nothing to keep it from sliding on the keyed shaft with the collar removed.
The only solution I can think of is to make a shortened key that only fits under the upper change gear and make a reduced diameter collar that doesn't have a key under it.
Has anyone else had this problem while trying to use change gear 28?
Can any PM1440GT owner tell me what I am doing wrong or think of a better solution?
I sent an email to PM to see what they say.
BP
I observed that the 127 gear was now contacting the collar on the shaft next to the 28 upper change gear. The only way I could gain enough clearance was to completely remove the offending collar. But I can't run the machine with the collar removed because the 28 gear has nothing to keep it from sliding on the keyed shaft with the collar removed.
The only solution I can think of is to make a shortened key that only fits under the upper change gear and make a reduced diameter collar that doesn't have a key under it.
Has anyone else had this problem while trying to use change gear 28?
Can any PM1440GT owner tell me what I am doing wrong or think of a better solution?
I sent an email to PM to see what they say.
BP