Manual inflation of Freightliner suspension
Happy new year fellow RVs! A mechanic friend of mine mentioned that there may be a remote inflation valve for the suspension on my 1999 Allegro pusher. He said these are used to inflate the bags w...
Forum Discussion
Gang,
I have (3) Air points on our '04 Itasca Horizon 36GD with the C-7 330 CAT. One is an outlet, much like many of you described, in the generator access area, to the left of the generator and, has manual valve and, a gauge with it. A second one, is on a small manifold to the right side of generator and is an actual shrader valve. A third one, another shrader valve, is on the bottom of the air dryer.
I've tried to "Back fill" the air system through a specially built, double male fitting inserted in that air outlet. That system will, in ours at least, will not allow the suspension to fill. It simply stops at a certain pressure and, the suspension does not/is not, filling. The gauge goes up to what I'm applying to it but, the suspension does not fill.
Now, if I apply air to the shrader valve on the right side of the generator, it too will not supply air to the system, unless, the system is above a certain pressure, of which, I forgot since it's been a while since I've goofed around with it.
But, in any event, if I apply air to the shrader valve on the bottom of the air dryer, IT WILL FILL THE SYSTEM, regardless the amount of pressure still in the system, low or high.
Since much of this was intriguing to me, I requested and air routing diagram from Freightliner and, received one. It's not as complete as I would have liked to have but, it's something. I'm still figuring this thing out.
Scott
I have (3) Air points on our '04 Itasca Horizon 36GD with the C-7 330 CAT. One is an outlet, much like many of you described, in the generator access area, to the left of the generator and, has manual valve and, a gauge with it. A second one, is on a small manifold to the right side of generator and is an actual shrader valve. A third one, another shrader valve, is on the bottom of the air dryer.
I've tried to "Back fill" the air system through a specially built, double male fitting inserted in that air outlet. That system will, in ours at least, will not allow the suspension to fill. It simply stops at a certain pressure and, the suspension does not/is not, filling. The gauge goes up to what I'm applying to it but, the suspension does not fill.
Now, if I apply air to the shrader valve on the right side of the generator, it too will not supply air to the system, unless, the system is above a certain pressure, of which, I forgot since it's been a while since I've goofed around with it.
But, in any event, if I apply air to the shrader valve on the bottom of the air dryer, IT WILL FILL THE SYSTEM, regardless the amount of pressure still in the system, low or high.
Since much of this was intriguing to me, I requested and air routing diagram from Freightliner and, received one. It's not as complete as I would have liked to have but, it's something. I'm still figuring this thing out.
Scott
