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Thud beat me too this, but I also was thinking that you need to find the common denominator of all 3 axles giving the problem.
On the air plumbing....is it possible to switch the left and right main supply air, and see if the problem follows ?
Does air release when pedal or the valves are actuated ? which they probably do, since you said it worked for an hour....
Can you see clearance between the drum and shoes ?
IF it was just one axle I would really suspect clevis pins, or s cam shaft seizing, but if it was not assembled correctly, then.... ? or are the S Cams...cammed over center ?
Another thought...maybe it has the wrong parts installed on the LH side on all 3 axles....could be the S cam shafts, or even the wrong shoes or spring set.....
I'm throwing more darts :-) | |
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