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TOPIC: plumbing diagram for pbr 4 trailer brake

plumbing diagram for pbr 4 trailer brake 31 Mar 2013 19:35 #112207

  • v8 inter nut
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Anyone tell me where to put the air lines to this hand controler I think I have it right but not sure



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Re: plumbing diagram for pbr 4 trailer brake 31 Mar 2013 20:08 #112208

  • Buc
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V8,

Try and search the 4M as I remembers there was some diagrams posted some time back cos I be pinch'm fer my records. :P

Here be one link fer ya ta check out but I be sure there be othas. ;)

www.hcvc.com.au/forum/YaBB.pl?num=1287914367/2#2

Regards, Buc. :)
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Re: plumbing diagram for pbr 4 trailer brake 31 Mar 2013 20:30 #112209

  • hayseed
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V8, as buc says..

there have been a couple of threads 'bout this. but I cant' find 'em...

I think IHscout may have started one, ...........
"Be who you are and say what you feel...
Because those that matter...
don't mind...
And those that mind....
don't matter." -
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Re: plumbing diagram for pbr 4 trailer brake 31 Mar 2013 20:50 #112210

  • bigcam
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I can tell you where they go but you'll have to wait until I'm back at work to look at a valve.
The valve is marked pretty well anyway.
From memory, the air goes into the hole closest to the steering colomn, the emergency or constant trailer supply is the hole at the other end of the valve, directly under the tractor protection valve, the control line which is the blue line to the trailer is one of the middle ones, then you have an exhaust and the one from the treadle valve as well.

If you take a photo of the underside of the valve showing the markings I can tell you which air line goes where.
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Re: plumbing diagram for pbr 4 trailer brake 31 Mar 2013 21:03 #112211

  • v8 inter nut
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Thanks cam would it be okay if I could ring you tomorrow when I'm infront of it as I would like to get it sorted. Pm me your number if that is okay
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Re: plumbing diagram for pbr 4 trailer brake 31 Mar 2013 22:44 #112212

  • jimbo51
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This might be of some use.....







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Re: plumbing diagram for pbr 4 trailer brake 01 Apr 2013 09:24 #112213

  • IHScout
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Hi V8 Inter, you've probably got all the info you need with Jimbo's post, but the ither topic referred to by Hayseed n Buc is here http://www.hcvc.com.au/forum/YaBB.pl?num=1327918313/0
Dennis
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Re: plumbing diagram for pbr 4 trailer brake 01 Apr 2013 13:45 #112214

  • 600Dodge
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So in this set up what releases the spring brakes? Is it the tpv end of the CA300? or do you need another valve? My Dodge has air over brakes and a full mechanical handbrake so it doesn't have air park brake valving.
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Re: plumbing diagram for pbr 4 trailer brake 01 Apr 2013 13:53 #112215

  • Swishy
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  • If U don't like my Driving .... well then get off the footpath ...... LOL
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Tiz a proportion n valve to trailer brakes
th@ iz mainly controlled from truck brake pedal
U can dial up how much the brakes on trailer work
(Subbies luvd these valves to wear out bosses trailer brakes n preserve his own truck brakes)
also dependin on the load ratio truck - trailer jist dial for abalanced brake n system
LOL
OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

There's more WORTH in KENWORTH
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Re: plumbing diagram for pbr 4 trailer brake 01 Apr 2013 14:30 #112216

  • jimbo51
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If you are talking about spring brakes on the prime mover it would be a separate valve and circuit.

The CA300 pre-dates the introduction of spring brakes on trailers but I don't see any reason why it wouldn't work via the tractor protection valve with the appropriate spring brake control and relay valves on the trailer.
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