I wanted to share a quick and permanent repair for the nylon collar that always splits inside the tonearm lift mechanism on the internal cueing/anti skate asy on the SL1200 family of turntables.
As many of you already know, the part in question is part of the entire plastic plate that houses the cueing and antiskate. Its NLA and the small pin with nylon collar thats pushes on the arm lift platform was never sold separately as a service part. This piece usually cracks and splits, reducing the lift on the cueing mechanism so that the arm won't fully lift from the record.
I've come up with an easy fix for this problem. As long as the collar is only split in one spot (usually the case), it can be reattached and pinned, so that it won't slip, even if the collar is split.
What I do is drill a .037" hole into the flat side of the collar, going half way into the brass shaft. I then pin it with a cut off piece of drill bit with a similar diameter as the hole. I finally secure the pin with loctite R638 retaining compound, making sure the pin sits slightly below the surface.
I've repaired a whole bunch of these parts this way and so far haven't had any issues with the repair lasting. Usually people will break the upper cueing pad before the lift pin collar gives way.
Hope someone can benefit from this. Alot of the complete SL1200 lower arm mechanisms I see being sold on ebay have the part mentioned above already failed, so you're going to pay a big price for one that is intact. The part will however fail soon after you install it due to the way nylon ages and becomes brittle.
As many of you already know, the part in question is part of the entire plastic plate that houses the cueing and antiskate. Its NLA and the small pin with nylon collar thats pushes on the arm lift platform was never sold separately as a service part. This piece usually cracks and splits, reducing the lift on the cueing mechanism so that the arm won't fully lift from the record.
I've come up with an easy fix for this problem. As long as the collar is only split in one spot (usually the case), it can be reattached and pinned, so that it won't slip, even if the collar is split.
What I do is drill a .037" hole into the flat side of the collar, going half way into the brass shaft. I then pin it with a cut off piece of drill bit with a similar diameter as the hole. I finally secure the pin with loctite R638 retaining compound, making sure the pin sits slightly below the surface.
I've repaired a whole bunch of these parts this way and so far haven't had any issues with the repair lasting. Usually people will break the upper cueing pad before the lift pin collar gives way.
Hope someone can benefit from this. Alot of the complete SL1200 lower arm mechanisms I see being sold on ebay have the part mentioned above already failed, so you're going to pay a big price for one that is intact. The part will however fail soon after you install it due to the way nylon ages and becomes brittle.
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