Air Actuated Brake Controller

[martinwcox]

I am about to fit one of these to my M923, http://www.hayesbc.com/?page_id=1065, has anyone else here on SS used one of these before. I plan on teeing off the gland hand to feed this along with a 24V to 12V converter in the cab. I have also built a 24V to 12V converter for the trailer lights.

 

[firefox]

Personaly I would look into a brakesmart system. They use a sensor that taps off of your brake line. Yes it is more expensive, but I believe it is worth the extra money if you have an air over hydraulic system as opposed to an air brake system. My buddy
installed one of their systems on my M54A2 to haul a trailer with electric brakes to take his half track to meets.
Bruce

 

[quickfarms]

M923 should have full air brakes

 

[jw4x4]

M923 should have full air brakes

939 series trucks do have full air brakes. The air actuated brake controller facilitates the use of a trailer with electric brakes.

 

[ReoRider]

There is also a slick military kit that might still be out there at the old time dealers. It connected to the trailer brake air line at the rear of any 2 1/2 thru 10 ton truck that was equipped with air over or straight air. The unit consisted of a sealed air operated diaphragm that varied, based on pedal pressure, the amount of electrical current flowing to the electric brakes on the trailer wheels. Also had a dash mounted rheostat that allowed you to adjust the range of the braking force going to the trailer. Easy to set up, when loaded, based on the standard push/pull/neutral feel of the trailer.