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Old 03-04-2009, 11:03 AM   #29
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The valve that the 1/4" line to it is the one I was reffering to. That was an empty port right? The supply line can ASLO come from an empty port, you would just need to locate it coming from the tank. I'm again not sure why Pete's instruction's are that way, they don't need to be.
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Old 03-04-2009, 11:59 AM   #30
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Quote:
The valve that the 1/4" line to it is the one I was reffering to. That was an empty port right?
It wasn't exactly empty, it had an old line tapped in, probably to an old M&G system from the previous owner would be my guess, but yes it was an extra port that was available for use off the brake relay. I just removed the old plumbing re-used the port.

Quote:
The supply line can ASLO come from an empty port, you would just need to locate it coming from the tank.
I was not aware there were ports available off the coach's tank, they could well be there and I just did not see them. If there are ports off the coach's tank (like a manifold?), it would be easier (and probably better) than the way I did it.

As long as the air for the aux tank does NOT come from the empty port on the brake relay valve, the system design parameters are probably met, ie a completely separate air supply for the aux braking system. That "separation of air supply" was my primary decision point to get AFO over another system. You can still get the separation with other systems, but its an extra component ( $$$ from Spartan in my case) you would have to buy. It's included with AFO, as is the break-away system.
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Old 03-04-2009, 11:42 PM   #31
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I have the AFO and I think it is great. I did not install it due to time, however, I did go back and change out the "plastic" airline tubing they use. I do not like the stuff at all, it can kink, get damaged and....

I replaced it all with rubber air hose, including the hose between the coach and Toad. I am much happier now.
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Old 03-05-2009, 07:15 AM   #32
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The plastic air line is DOT approved for air brakes, it's written right on the hose!
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Old 03-05-2009, 05:49 PM   #33
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When I was installing my AFO, I already had an airline left over from my brakemaster...it was tied into the air manifold and was regulated air. I hesitated cutting the main air line and teeing into it..called SMI and asked what the operational difference would be if I did NOT cut into the main airline and install the T and seperate air tank...."no difference". The reason for the extra tank is that the chassis mfgs asked SMI to provide a seperate air tank supply as a 'feel good' thing....bottom line is IF that 1/4 inch line going to the coach rear got damaged, I think my air compressor could more than keep up with the line's loss.if that T in the main line failed, it would be a different story!!.so I am using the old Brakemaster line with no air tank...works perfectly
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