Awesome Possum
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I've been having an intermittent problem with one or the other of the rear brakes on my Bob just locking up when the air system is up to pressure (90-120psi). It doesn't do it when I'm driving, though it has left me stuck at a few intersections. We've adjusted the brakes according to the manual, and also just moved them all the way out. This was today and it has happened before. (Since my air steering dumps excess air in a right turn I can always get it moving by dumping the air down to 60psi or so. Not a fix but beats sitting at a light unable to move!)
Yesterday we took it for a drive and it did great. Other times the only problem is that the rear brake locks for a second or two before releasing. It may also be that it depends on whether the truck is parked facing uphill or down in my driveway. A problem like this is very hard to diagnose when I only drive the truck once every week or two.
I don't fully understand how an air-over-hydraulic brake system works either, though I'm learning. It would seem it may have something to do with the airpac(?)
When it's up to behaving badly, it's like it's still delivering enough brake fluid to stop both of the rear axles even though there is just the one rear axle. BTW, we have experimented with brake pedal play as well to no avail.
HELP!
Yesterday we took it for a drive and it did great. Other times the only problem is that the rear brake locks for a second or two before releasing. It may also be that it depends on whether the truck is parked facing uphill or down in my driveway. A problem like this is very hard to diagnose when I only drive the truck once every week or two.
I don't fully understand how an air-over-hydraulic brake system works either, though I'm learning. It would seem it may have something to do with the airpac(?)
When it's up to behaving badly, it's like it's still delivering enough brake fluid to stop both of the rear axles even though there is just the one rear axle. BTW, we have experimented with brake pedal play as well to no avail.
HELP!