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55 400band adjustment failure.
#1
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happy
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55 400 band adjustment failure
For some unknown reason, I thought it would be a good idea to remove the lock nut, but I could not. There was insufficient room between the end of the screw and the exhaust pipe. The adjusting screw was backed out to nearly touch the Exhaust pipe. Dropped the pipe. Turing the screw in with little resistance. Not even finger tight. Turned screw to nearly its full depth. Remove screw. Removed anchor pin. Replaced O ring seal, Put all back in. Still no resistance. I think this will not be an easy fix.
(un) Happy

Posted on: Today 9:19
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Re: 55 400band adjustment failure.
#2
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56Clippers
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Quote:

happy wrote:
55 400 band adjustment failure
For some unknown reason, I thought it would be a good idea to remove the lock nut, but I could not. There was insufficient room between the end of the screw and the exhaust pipe. The adjusting screw was backed out to nearly touch the Exhaust pipe. Dropped the pipe. Turing the screw in with little resistance. Not even finger tight. Turned screw to nearly its full depth. Remove screw. Removed anchor pin. Replaced O ring seal, Put all back in. Still no resistance. I think this will not be an easy fix.
(un) Happy


Take the pin out again and take a look with a borescope. You should see the band where is engages with the pin. The band could be broken or out of place.

You could also have a broken brake band lever shaft or lever. This is on the other side and wouldn't show with a borescope.

Posted on: Today 11:20
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Re: 55 400band adjustment failure.
#3
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happy
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55 400 UT bands 2
Thank you for your suggestion. I did try the scope when I first had the pin out but really did not know what I was seeing. So, I Tried again. This time I removed the exhaust pipe for easier access. Got the screw out but could not pull out the anchor pin. The new O ring may be too tight for my magnate. I inserted a short wooden dowel and marked it at the face of the case, this tells me that the pin is too deep and inserting the screw to it maximum depth won’t produce 20 foot pounds,
Happy

Posted on: Today 14:23
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