CMP's and attaching trailers......

[Hanno Spoelstra]

Originally Posted by Grant Bowker

I know this is getting picky but that is a vacuum brake system for the trailer as opposed to air (pressure) brakes to go with the vacuum boosted system of the heavier CMPs. It does make sense to use the same power source for both. Also, I'm not aware of any CMP equipped with air (pressure) brakes except some trailers. As always, happy to learn more - even if it proves me wrong....

Grant, you must be right.

I thought I had seen pictures of the trailer air brake line setup on this forum before. I recalled it was for actuating trailer brakes, not boosting thr truck's brakes.

If it was a pressurised system, the truck would have to be equipped with a compressor but I see no signs of that.