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Topic: Platter LP-270
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Brad Miller
Administrator
Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99
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posted 11-25-2003 03:52 AM
Yeah, when you pull tension during threading, don't baby the platter so much.
What you are doing is barely tugging on the film to initiate the takeup (or accidentally tripping it during threading) just a tad bit so that you are effectively putting the takeup elevator roller within the bottom couple of inches of it's travel. That translates into the motor kicking on at full speed and slamming into the top of the elevator.
The solution is that when you are ready to trigger the takeup, grab and quickly pull 2 feet of film, hold for about 2 seconds, then release. That way before the motor can get spinning, you have pulled the elevator roller (which determines speed) a solid foot above it's resting spot and as such the motor will not kick on full throttle...meaning no more crash.
BTW, there is an upgrade kit available from SPECO to add a second roller to the takeup elevator and a third roller at the top. All new LP-270s have this and it was implemented as a way to guarantee that the elevator would not crash, but I am not a big fan of them, as it screws up the wind of the film (too loose) and the 3 rollers at the top are close together which makes threading more difficult and slows you down. The better solution is just to learn how to pull tension properly like I explained above.
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