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I have the Mack truck in subject line. It only has a tractor brake inside cab. I purchased a 30,000 lb dozer and I was wondering if I could add trailer air brakes and tow this dozer. Would need a tag trailer rated for 40,000 lbs. Before I even waste time thinking about it was going ask some of you more knowledgeable guys if this was even a possibility.  

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I just did about the Samething as you 

I purchased a excavator 

 

but I got my gladhand kit from anything trucks 

haven't Installed it yet but seem to be everything I need 

bunch of good videos on YouTube

 

I just need to figure out the trailer wiring now before the gladhands 

20220428_192526.jpg

  • Like 1
  • 1 month later...

Ricky..  Do you have a red and yellow park brake buttons?  if yu only have the yellow, you need a tractor protection valve for the truck. and maybe a new anti compounding valve in conjunction with the R-12 valves, in the frame..  There are a few way's to do it.. ... just curious... jojo

  • Like 1
  • 6 months later...

JoJo I guess I never saw this reply from you. Well the truck should be getting out of the shop from the inframe next week. Anything trucks sells a kit for around 500.00 that has everything in it to hook it up. I have the PP-1 dash valve 

  • 3 weeks later...

It is directly under the brake pedal.  It is hard to get to without pulling the floor pan.  What is the issue?  Jojo

Ok.. that makes sense.  Open the hood and look under the cab. You will see a dozen air lines going to the treadle valve and such. 

ok.. I was hoping it was already plumbed and you were making it new..  I havent done enough of them to describe the procedure without the instructions or air line diagram.. I'm sorry, Ricky..

  • 2 weeks later...

So we are welding a 3/4” plate on back for pintle hitch. I have the gladhands that have a spring on them that seal themselves off when not hooked up. The gladhands have a female thread coming out of the back of them. What do people use to run through the 3/4” plate that will attach to gladhand and airlines but also go thru the 3/4”  Here is a photo of gladhands for illustration 

D36B1E2A-8DA9-4543-9ECF-1ED4AD7A8339.png

Edited by Ricky Beals

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