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Post by paradisecs on Apr 5, 2019 20:57:30 GMT
Of the three set screws on the mechs I can find information on the following:
Thrust Bearing on the clutch (.002 end play)
Turntable Thrust Bearing (.003 to .007 play)
I can't find anything on the bearing for the motor shaft. How should this be set?
Stephen
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Post by Ron Rich on Apr 6, 2019 2:49:27 GMT
Stephen,
Which "bearing" --top or bottom (in motor) ? Ron Rich
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Post by paradisecs on Apr 6, 2019 3:07:55 GMT
Ron, The one on the top of the motor with the set screw similar to the thrust bearing on the clutch. When I got this unit this bearing was cranked so tight nothing turned so I've had to guess where it's supposed to be set.  Stephen |
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Post by Ron Rich on Apr 6, 2019 14:23:06 GMT
Stephen
That housing and bearing screw is factory set at "zero" clearance. The way I saw it done in the factory, was with no motor installed the lady tightened the screw till it touched, compressing the felt packing, then backed off about 1/8 th turn ( Note--felt packing must touch the ball bearing-but not stick out of the screw enough to impead the bearing---cut felt as flush to bottom of screw as possible). She then checked it by "wiggling" it up down on the worm gear ( "--just enough movement to know it's not bound up--"), and turning it a few times. The motor is then installed and the coupler is correctly installed, as I describe in my "Seeburg Mechanism Guide". Ron Rich
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100j
New Member
Posts: 16
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Post by 100j on Jan 21, 2023 8:55:41 GMT
Since I did not find it in this forum, I'd like to add both measures for the steel balls:
- smaller balls (clutch and turntable; Seeburg #250125): 0,187" = 3/16" = 4,762mm
- larger ball (motor worm gear; Seeburg #245180): 0,25" = 1/4" = 6,35mm
Maybe it helps anyone.
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