Does anyone have any suggestions as to how to make the motorized Walthers90' turntable#933-3171 run better?
I just put one together and in doing so the nubs on the 4 inch gear wheel were broken... ok, I broke them... and from what I can see the nubs served as spacers between the wheel and the turntable pan keeping the wheel turning level. Without the nubs, the gear wheel wobbles and I suspect that that is why I hear a bad chattering sound as the turntable turns.
In one quarter section arc, the system makes a lot of noise and the bridge jitters and I suspect that the gear on the motor is not meshing properly with the teeth on the gear wheel. Either the gear wheel rides too high or too low against the motor gear and periodically slips off or else the gear wheel is out-of-round and at certain points is a little further away from the stationery motor gear and slips. Do either of these possiblities sound realistic or are there other possible causes?
If either is the cause (the action is hidden so I can't see the meshing) I am considering two possible solutions. One is the installation of three homemade roller bearings mounted on the pan to keep the gear wheel level and the other is rigging up some sort of spring system that will hold the motor snugly against the gear wheel teeth even if the wheel is out-of-round.
Any other suggestions?