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Air brake pods on the freightliner


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#1 catd11rpusher

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Posted 03 September 2012 - 08:52 AM

The question is AMT kit on air brakes is that the way they are installed? or is that wrong? right to the backing plates?

#2 lapazleo

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Posted 03 September 2012 - 10:16 AM

Yes they are correct many older AMT kits have what are called wedge brakes including the Freightliner. Wedge brakes are older technology that went away in the early 70s. The brakes you're probably more familiar with are called S cam brakes some AMT kits have those. Many older AMT kits have no steer axle brakes which was normal on tandem axle tractors till the laws changed in the early 70s. Basicaly on wedge brakes the air chamber pushes a wedge between the brake shoes forcing them against the drums. On S cam brakes the air chamber pushes on the slack adjuster to rotate the shaft with S cam on the end forcing the shoes against the drum much like the lobe on a camshaft pushes the push rod to open a valve. Sorry about the big answer for a simple question.

#3 catd11rpusher

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Posted 03 September 2012 - 04:15 PM

Thank you very much for the answer, I realize the s- cam brakes of know. But how in the heck do I run airlines to those little air brake pods????? Thank you Leo for taking the time for the lessen :)

Edited by catd11rpusher, 03 September 2012 - 04:17 PM.


#4 lapazleo

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Posted 04 September 2012 - 02:55 AM

Thank you very much for the answer, I realize the s- cam brakes of know. But how in the heck do I run airlines to those little air brake pods????? Thank you Leo for taking the time for the lessen :)

I'll see if I can find some old pics.

#5 catd11rpusher

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Posted 04 September 2012 - 03:55 PM

Leo thank you very very much that would be very nice of you. :unsure:

#6 lapazleo

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Posted 04 September 2012 - 04:18 PM

Still looking for a clear pic. I do remember they had a service and emergency line like S cam brakes.

#7 catd11rpusher

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Posted 04 September 2012 - 04:51 PM

Ill tell you Leo, I've been looking but can't find anything so far, I get close but strike out. I can't remember who gave me a air brake picture that was really really great. It was S cam type but its helping a lot with my Titan I'm doing. I will show some picks tomorrow. Thanks so much for even trying. :)

#8 lapazleo

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Posted 04 September 2012 - 05:10 PM

Ill tell you Leo, I've been looking but can't find anything so far, I get close but strike out. I can't remember who gave me a air brake picture that was really really great. It was S cam type but its helping a lot with my Titan I'm doing. I will show some picks tomorrow. Thanks so much for even trying. :)

Anytime.