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1. Suffering from floppy handbrake. Missing the jamb nut on the outer-shoe adjusting bolt. It's item #1 on frame 3 of TM 9-2320-209-3-2. Calls for an 11/16 wrench. Anyone know the size/pitch?
2. Even w/o the above jamb, I can get the outer shoe to spec. Good start, but the jamb would be handy to have. In examining the cable adjustment set up for the inner shoe, not so good. There is a jamb nut on this [which does not show in the TM]; seems to be a nylon lock nut. Anyway, I can just barely get the upper end of the inner shoe to 0.015", but only by tightening the 'end-of-cable' nut [item 6 on frame 3] as far as it will go down the cable. That done, I tried to adjust the eccentric to get the right gap at the bottom of the inner, but there is so much slop in the spring loop that contains the pin at the bottom of the inner shoe that I couldn't get the shoe to stand off from the drum to enable satisfactory adjustment. At this point I found that the brake lever had no travel. By trial and error I backed off the adjusting nut and cranked the eccentric to get solid brake engagement at the top of lever travel. While this is the desirable outcome, the contradictions to the TM are puzzling, to say the least.
Anyone have any ideas as to what's up? It almost appears that the brake cable is too long, or perhaps the moustache spring is shot.
I'm open to suggestions.
2. Even w/o the above jamb, I can get the outer shoe to spec. Good start, but the jamb would be handy to have. In examining the cable adjustment set up for the inner shoe, not so good. There is a jamb nut on this [which does not show in the TM]; seems to be a nylon lock nut. Anyway, I can just barely get the upper end of the inner shoe to 0.015", but only by tightening the 'end-of-cable' nut [item 6 on frame 3] as far as it will go down the cable. That done, I tried to adjust the eccentric to get the right gap at the bottom of the inner, but there is so much slop in the spring loop that contains the pin at the bottom of the inner shoe that I couldn't get the shoe to stand off from the drum to enable satisfactory adjustment. At this point I found that the brake lever had no travel. By trial and error I backed off the adjusting nut and cranked the eccentric to get solid brake engagement at the top of lever travel. While this is the desirable outcome, the contradictions to the TM are puzzling, to say the least.
Anyone have any ideas as to what's up? It almost appears that the brake cable is too long, or perhaps the moustache spring is shot.
I'm open to suggestions.
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