Posted 6/24/2015 20:20 (#4644227 - in reply to #4644195) Subject: RE: Leveling valve on semi - need help
Wi
SamsDad - 6/24/2015 20:00
I'll check it tomorrow, but I am 99% sure I have it right. I switched some hoses around thinking I had something backwards, but to no avail. Could well be the valve looks right but is wrong. Thank you very much. Ben
You got a valve for a trailer that is set to auto dump when the parking brake is applied. That's what the "supply gladhand" port is. When you send air to it the dump closes. When you exhaust air the suspension dumps. It's possible some trucks were setup with valves like this too, the ones I've been around all send air to the dump valve whether integral or separate. It's obvious yours is setup this way as well. Take the valve back and get one setup for what you need. I just put the same valve on our freightliner don't remember the number though, believe it was a velvac.
Leveling valve on semi - need help
