Clippard Valve Question

[davidbrady]

Hi Al,

I had a problem with my LXi where the tag wouldn't dump. I'd hit the switch to dump the suspension and the drive and steer would dump but not the tag. You can imagine the pressure on the tag axle air bags as it supported the entire weight of the rear-end. I replaced the clippard valve and all was well. I think the clippard valves only function is to pass an air control signal to the tag relay valve to dump the tag. As Bennie Collier always said, "You need air to make air". He was saying you need to have air in the accessory tank before you throw the switch to raise the suspension. So, from the Clippard valve's perspective a positive pressure turns off the tag dump and a zero pressure enables the tag dump. Try throwing all dump switches to the dump position, start the S60, build full pressure in the accessory tank, then raise the coach.