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GREENIE one back @ yar

  • Swishy
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15 years 4 months ago #5667 by Swishy

One back @ yar
Brake Q : Problem
After normal operating conditions
brakes drag on drive axle where maxis B
also air leaking outa Quick release dump valve

wot B the problem n how to solve

any body chip in with the A:

cya

OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

There's more WORTH in KENWORTH

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15 years 4 months ago #5668 by
Replied by on topic Re: GREENIE one back @ yar
First thing I would do is replace the rubber valve in the dump valve, most likely a bit of dirt has got in to it and worn a hole in the rubber or the seat has been worn as well.


regards greenie [smiley=vrolijk_1.gif]

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15 years 4 months ago #5669 by Murray
Replied by Murray on topic Re: GREENIE one back @ yar
Swishy,
Replace the Relay and the Quick release valves --- both cheap-- not worth repairing nowdays.
Murray

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15 years 4 months ago #5670 by werkhorse
eyah what they said too .......

You might Laugh at me because I'm different, I laugh at you because you're all the same

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15 years 4 months ago #5671 by Swishy
Replied by Swishy on topic Re: GREENIE one back @ yar



RE:First thing I would do is replace the rubber valve in the dump valve

No not the problem
I have replaced them @ times years ago with the cutout from a plastic icecream lid but new dump valves can B fully sealed

Murray
GuddayM8

RE:Replace the Relay and the Quick release valves

Sorry not the problem

Hope U saving up to bid on KW Swami book @ auction on Saturday Night feast, all procedes goto to HCVC

cya


OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

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15 years 4 months ago #5672 by werkhorse

You might Laugh at me because I'm different, I laugh at you because you're all the same

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15 years 4 months ago #5673 by melonreo
Replied by melonreo on topic Re: GREENIE one back @ yar
Hi all ,, air is bypassing inside the brake chamber, fit some new diahframs( and yes i am sure it is spelt wrong) or replace the chamber..

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  • Swishy
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15 years 4 months ago #5674 by Swishy
Replied by Swishy on topic Re: GREENIE one back @ yar


Werk
GuddayM8

Your close
But no cigar

Don'tGiveUpU'reDayJob
LOL

Keep guessing
all will B revealed

cya


OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

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15 years 4 months ago #5675 by Swishy
Replied by Swishy on topic Re: GREENIE one back @ yar

Well It Looks like MelonReo posted about the same time as my last post
MelonReo is right ;)

on 2 occaisions in the last 20 years this has happened to me
2nd time I was rakin me brain to remember the 1st time how to solve problem

Now 4 the PleaseXplain





Where the (pink) pushrod goes thru the ajoining 2 air chambers they R sealed with an 'O'ring
when the 'O' fails to seal U get the above problem
Why U ask
When U release the parking brake air in th@ chamber (the chamber marked 40-120psi) compresses the spring to realease the parking brake
and if the 'O' is not sealing B tween the 2 chambers air enters into the service brake chamber, it slightly applies the service brake with air also going to the other Service brake @ the other end of axle and this also applies the service brakes slightly n while this is happening the quik release dump valve @ centre of axle is also leaking or making like a noise of a electric horn
to solve the problem we disassemble the beast n placed new 'O' ring, we also replaced both rubber pancakes even tho they were not leaking

Now If U can follo the above
May B u can xplain it 2 me

LOL
cya

OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

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15 years 4 months ago #5676 by Murray
Replied by Murray on topic Re: GREENIE one back @ yar
Good one Swish,
Have seen it a few times before but without the noise from the QR valve. Haven't fitted new Diaphrams for years, brake chambers being about the same price now as 2 diaphrams on their own. Wayne and I seem to spend quite a bit of time now just looking at the problem and wondering how the hell we fixed it last time -- mind you , last time might be 20 years ago!!!!

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