Seabass69
Texas
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Joined: 12/28/2011
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enblethen wrote:Need make sure that the air gets drained from tank. Caliper pistons could be rusted.
How long has it been sitting?
it doesnt sit much, just a little over the winter but this problem was there last year
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Seabass69
Texas
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oldave wrote:Are you sure it's disc? My 03 Monaco has drum brakes all around & yours is a Monaco too.
it is disk, air pod on the caliper itself
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Stim
NE Florida
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Joined: 05/23/2007
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Could be a defective relay valve not releasing or operating slowly. ??
Maybe a kinked air hose. ??
With MH stopped, press hard on brake peddle then release and listen for the air to exhaust. Is it instant or time release?
I've worked on hundreds of air brakes on semi's but got out of it before disc came out so I'm guessing a lot.
It should have standard generic air brake parts available at large truck parts stores.
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Ray,IN
IN, USA
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Joined: 03/22/2001
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Check for water in tanks, if water is allowed to remain in tanks it can get into the braking system, which gets expensive to repair.
When was the air dryer filter last replaced?
2000 Winnebago Ultimate Freedom pushed by a 2013 Chevy Silverado K1500 And so, my fellow Americans: ask not what your country can do for you — ask what you can do for your country.John F. Kennedy 20Jan1961
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oldave
Tx
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Joined: 06/19/2018
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Many/most brake systems have a proportioning valve that regulates the pressure front to back. I can't say for sure you have one but you probably do.
Your symptom sounds like the rear brakes are not getting their share of air pressure IMHO.
Google & see what they look like.
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Seabass69
Texas
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Ray,IN wrote:Check for water in tanks, if water is allowed to remain in tanks it can get into the braking system, which gets expensive to repair.
When was the air dryer filter last replaced?
I bought it 2021 and replaced it then, may need to again.. thanks
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Seabass69
Texas
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Stim wrote:Could be a defective relay valve not releasing or operating slowly. ??
Maybe a kinked air hose. ??
With MH stopped, press hard on brake peddle then release and listen for the air to exhaust. Is it instant or time release?
I've worked on hundreds of air brakes on semi's but got out of it before disc came out so I'm guessing a lot.
It should have standard generic air brake parts available at large truck parts stores.
it sounds normal to me but I will look into that, thanks
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Seabass69
Texas
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oldave wrote:Many/most brake systems have a proportioning valve that regulates the pressure front to back. I can't say for sure you have one but you probably do.
Your symptom sounds like the rear brakes are not getting their share of air pressure IMHO.
Google & see what they look like.
thanks
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Ray,IN
IN, USA
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Joined: 03/22/2001
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Seabass69 wrote:Ray,IN wrote:Check for water in tanks, if water is allowed to remain in tanks it can get into the braking system, which gets expensive to repair.
When was the air dryer filter last replaced?
I bought it 2021 and replaced it then, may need to again.. thanks
For trucks with air brakes the dryer filter must be replaced annually, but for our infrequent MH use every 5 years is adequate.
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