8mm Forum: B & H take up problem

This is topic B & H take up problem in forum 16mm Forum at 8mm Forum.

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Posted by Jeff Missinne (Member # 3373) on July 16, 2013, 07:34 PM:

I have a Bell & Howell 2585 with a take-up that slows down when running longer reels. The film on the take-up reel is saggy and sloppy, and can run over the side long before the reel should be full. Motor still maintains proper speed so it's not that. Maybe an arm or belt problem? (And is there a quick, easy, cheap and stupid "fix" for it?) [Confused]

Posted by Pasquale DAlessio (Member # 2052) on July 16, 2013, 09:02 PM:

Belt. Replace it.

Posted by Jeff Missinne (Member # 3373) on July 16, 2013, 09:12 PM:

The belt in the arm itself?

Posted by Pasquale DAlessio (Member # 2052) on July 16, 2013, 10:19 PM:

Most likely the one inside the projector. Take the back off and very carefully. Run the projector to see the belt that is slipping. Replace it and you should be all set.

BE CAREFUL RUNNING IT WITH THE BACK OFF!!!!

PatD

Posted by Maurice Leakey (Member # 916) on July 17, 2013, 02:27 AM:

If the motor sounds OK I suggest that the problem could be the cloth belt in the take-up arm assembly. It has a rough edge on one side which eventually loses it "roughness" due to use. As the spool's weight increases this causes sloppy take-up.

The belt could be OK. If an old warped is being run the take-up will have problems with the film causing what you describe.

Posted by Jeff Missinne (Member # 3373) on July 25, 2013, 05:51 PM:

Thanks for the tip, you were right. I took out the old arm belt and replaced it with one salvaged from a machine that had a broken gear train but did have good take-up. Belt "A" was stretched out to the point where belt "B" fit inside it with room to spare. Tested it with a full 2300' reel of junk film and got a smooth, solid take-up.

Easiest "fix" I've ever done; undo two screws on the back of the reel arm and the cover of it falls off (plop!) Everything inside is open then, just slip off the old belt, slip on the new, and screw the cover back on. A five minute job even for a hopeless klutz like me.

Posted by Maurice Leakey (Member # 916) on July 26, 2013, 02:35 AM:

Don't lose the spring which will also "plop out" !

Posted by Jeff Missinne (Member # 3373) on July 26, 2013, 07:38 AM:

You're definitely right again, but mine stayed in! I suppose it helped that I worked with the machine upright on the table rather than turning it over to rest on the "operator's side."

Posted by Hugh Thompson Scott (Member # 2922) on July 26, 2013, 08:32 PM:

Jeff, your old belt, which is tough woven, can still be saved. Wash
it in a soap solution, rinse, then dry off in a warm oven, not on,
but switched off, after the Sunday roast. Result, a new belt. I have
done this for many years, it's just a case of shrinking the fabric.
It also cures "wow" on the sound.

Posted by Jeff Missinne (Member # 3373) on July 26, 2013, 10:01 PM:

That's some unusual advice to say the least, but it can't hurt to try it, so why not?

Posted by Hugh Thompson Scott (Member # 2922) on July 27, 2013, 07:12 AM:

It's worked for me for many years Jeff, and these little belts are tough, they just get smooth and greasy. Cleaned up,they're
as good as new,and I've never had occasion to buy new.

Posted by Richard C Patchett (Member # 974) on July 27, 2013, 11:21 AM:

Greetings
Hows the rubber under that belt?
It gets a little thin and and worn out
That should be replaced too
Get much soot from it?
Some times it gets like a Elmo roller
RC

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