On our air ride tank trailers we're supposed to dump the trailer air bags before we drop a loaded trailer. If we don't and the air bleeds out of the bags while sitting there it puts a bind on the dollies and make them hard to raise and lower. I've seen brand new dollies last only a few weeks before you couldn't move them anymore. Yeah, I know the bags shouldn't bleed out, but you all know it happens. After that I lower the dollies to @ 1/2" to1" from the ground, drop trailer the rest of the way by dumping the tractor bags and pull out slowly.
How do you unlock the kingpin from the 5th wheel?
Discussion in 'Questions From New Drivers' started by Badmon, Oct 13, 2014.
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The one I have in my truck is a Holland Air Release fifth wheel. It's difficult to find any information about it but here's a little insert I found in one of their pdf files that shows the release handle and gives a quick explanation. I don't know how to make the picture bigger.
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