02-13-2021, 11:23 AM
Hello everyone,
So I have a LOT of various dilemmas right now in glorious Yoakum, TX. One of those dilemmas is my driver’s side will not raise while in Travel mode. I can raise it manually from the panel just fine. When I raise it up and then go into travel mode, driver’s side sinks back down. I can see the armature for the HCV and it is very obvious that it’s getting pushed correctly by its distance to frame. Since travel mode allows the HCV to exhaust air from the bags I believe the travel solenoid is operating properly.
The way I understand the HCV is as follows: Supply air flows into the Inlet on the HCV. The “delivery” side of the HCV connects to the appropriate travel solenoid. When the travel solenoid is energized it allows air to pass freely from the related bag tanks to the HCV. This connection between solenoid and HCV allows the Valve to directly adjust bag pressure mechanically at the HCV. When the solenoid is not energized, the HCV can’t get air into or out of the bags.
This makes me think that inside the driver side HCV, the dump side is stuck open. Allowing the air to flow back out at the same speed it goes in. Is there a way to really confirm this? I’ve been stationary for about 3 weeks and this wasn’t an issue before now. I’ve got a road service guy coming next week to change out my rear and tag air bags. I’d like to have what I need in hand to get going again. I have a couple of weeks before I head to Atlanta for work. Since I’m full time, old 419 needs to go with me.
So I have a LOT of various dilemmas right now in glorious Yoakum, TX. One of those dilemmas is my driver’s side will not raise while in Travel mode. I can raise it manually from the panel just fine. When I raise it up and then go into travel mode, driver’s side sinks back down. I can see the armature for the HCV and it is very obvious that it’s getting pushed correctly by its distance to frame. Since travel mode allows the HCV to exhaust air from the bags I believe the travel solenoid is operating properly.
The way I understand the HCV is as follows: Supply air flows into the Inlet on the HCV. The “delivery” side of the HCV connects to the appropriate travel solenoid. When the travel solenoid is energized it allows air to pass freely from the related bag tanks to the HCV. This connection between solenoid and HCV allows the Valve to directly adjust bag pressure mechanically at the HCV. When the solenoid is not energized, the HCV can’t get air into or out of the bags.
This makes me think that inside the driver side HCV, the dump side is stuck open. Allowing the air to flow back out at the same speed it goes in. Is there a way to really confirm this? I’ve been stationary for about 3 weeks and this wasn’t an issue before now. I’ve got a road service guy coming next week to change out my rear and tag air bags. I’d like to have what I need in hand to get going again. I have a couple of weeks before I head to Atlanta for work. Since I’m full time, old 419 needs to go with me.
Troy and Kenda, Coach #419 “The First Prize”