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Old 09-26-2015, 08:50 PM   #1
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General Brake Question

Just wondering what is the most common bake problem on diesel pushers with air brakes?
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Old 09-26-2015, 09:22 PM   #2
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Just wondering what is the most common bake problem on diesel pushers with air brakes?

Well my cupcakes always turnout too dry 😜
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Old 09-26-2015, 09:26 PM   #3
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Probably air leaks somewhere in the system. I had a leak at the pressure gauge on the dashboard. It was a known defect, and replaced under extended warrantee.
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Old 09-27-2015, 04:49 AM   #4
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From reading posts here, it seems like lack of air dryer service is the biggest issue.

In my 40 year career, adjustments, before automatic adjusters came out in the 90s, was # 1.

# 2 was failed diaphrams, that caused leaks, in the brake chambers.
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Old 09-27-2015, 05:49 AM   #5
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#3 frozen slack pins.
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Old 09-27-2015, 11:28 AM   #6
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Air leaks. The chances of an actual mechanical problem are very slight. Not impossible, but few RVers have air brake problems other than the air system that is the source of the braking power. Chances are a DP owner will never actually wear out its brakes.
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Old 09-27-2015, 03:22 PM   #7
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Air leaks. The chances of an actual mechanical problem are very slight. Not impossible, but few RVers have air brake problems other than the air system that is the source of the braking power. Chances are a DP owner will never actually wear out its brakes.
Very good answer. Todays D/P air brake systems are tried and true. They've been proven for quite a few years now. About 99.999% of the components are used on over the road trucks and, those boys are hard on brakes and they still keep working. It's the air system itself that "potentially" can be an issue. Although, even those are close to bullet proof. Some of the components of the air system can, at times, present a problem.

1. Compressor, really rare for those to cause problems or be an issue
2. Governor, more potential for issues than compressor but, still on the rare side
3. Air Dryer,
Since this is a multi-component unit, PARTS of it can be an issue at times but, in general, the air dryer itself for the most part, fairly trouble free for many, many miles and years.
4. Tanks, very little, if any issues ever exist with this part of the system
5. Air lines and fittings, this will be your biggest POTENTIAL problem areas and segments of the entire system.

As far as the actual brake shoes/pads are concerned, those will be the least of your issues. With proper use of whatever supplied secondary braking system (i.e. Exhaust brake, Compression Brake (AKA "Jake" brake) or transmission retarteder) your service brakes will withstand the sands of time (and 100K or 200K worth of miles).
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Old 09-27-2015, 09:04 PM   #8
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I think Fire Up covered it.
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Old 09-29-2015, 12:40 PM   #9
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Problems????? My only problem is on damp cool mornings they squeek when used while exiting the campground.

have a nice day - Darrel
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Old 09-29-2015, 08:34 PM   #10
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Watch your hub level, I had a seal go bad and leaked right in the brakes, the smell gave it away
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Old 09-30-2015, 10:24 PM   #11
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Lack of knowledge!! If people took the time to at least read up on their air system or preferably take an air brake course. That will give them a good heads up on maintaining their system and knowing they have a problem before it becomes a real problem.
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Old 09-30-2015, 10:53 PM   #12
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1. Air leaks
2. Anyone operating a diesel pusher without knowing how the air brake system works.

Jim
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Old 09-30-2015, 11:01 PM   #13
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I don't know! We've had three DP's and I've never had a problem with any of them. I do change the air dryer when needed and lube the actuators where/when required. The last DP we had for 13 years and no problems.
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