Happy spring everyone!
Mine is happy except I'm less happy when I'm dealing with my 860's rear spring air brake troubles. Front brakes work fine. The control and delivery lines lead (1) from the in-cab treadle valve(new) and (2) the frame mounted air reservoir to a "relay" valve at the rear axle then connecting via hoses to the pot on each brake. The original valve at the rear was leaking so I installed what I thought would work: a Haldex 103081X modulating emergency relief valve. The problem is my rear brakes will not release whatsoever. This Haldex valve has what looks to be an adjusting screw which I varied to no avail. If I cut air supply to my rear axle I'm good to go but bad to stop. Do I have the wrong valve here or what the heck am I doing wrong? Thoughts anyone? Thank you. Charley.
