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Old 09-20-2017, 12:44 PM   #1
Mike from Canmore
 
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Brake failures in 2017-2018 models

My new 2018 27' Flying Cloud had been in the shop for over three weeks following major brake problems. The star wheel came loose and caused significant damage as it rattled around & then became lodged in the works. Once in the shop, it was found two other wheels had issues as well. Still waiting on parts. I'm curious to know how many others are having brake problems on new trailers?
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Old 09-20-2017, 01:09 PM   #2
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If the brakes were installed correctly originally I can not envision any way the star wheel could have come dislodged. The groves at the ends of the star wheel are over a 1/4 in deep and if they were backed in enough to slip off the brake shoe you had NO brakes at all as the lower part of the brake shoe ride almost touching the drum as set by the star wheel.

Please comment if you ever had braking action from the trailer.
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Old 09-20-2017, 01:26 PM   #3
Mike from Canmore
 
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If the brakes were installed correctly originally I can not envision any way the star wheel could have come dislodged. The groves at the ends of the star wheel are over a 1/4 in deep and if they were backed in enough to slip off the brake shoe you had NO brakes at all as the lower part of the brake shoe ride almost touching the drum as set by the star wheel.

Please comment if you ever had braking action from the trailer.
No, originally the brakes appeared to be working normally. Then on our last trip, my wife got out to turn off the fridge at a gas station and heard a hideous noise coming from the front right wheel. The wheel was not excessively hot, and the noise stopped. We thought a pebble had gotten caught and eventually worked loose. But eventually, a squeal started, and we brought the trailer straight to the dealer in Calgary where we live.
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Old 09-20-2017, 01:33 PM   #4
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Any pictures of components?
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Old 09-20-2017, 01:59 PM   #5
Mike from Canmore
 
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Any pictures of components?
No. I haven't been around when they've been working on it.
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Old 09-20-2017, 02:05 PM   #6
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Hi

Star wheel failures on drum brakes are not uncommon. You can find reports of similar failures going back decades. That's in no way to trivialize the issue. It's just to point out that it is *not* only a 2017 / 2018 sort of thing.

Bob
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Old 09-20-2017, 02:36 PM   #7
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Hi

Star wheel failures on drum brakes are not uncommon. You can find reports of similar failures going back decades. That's in no way to trivialize the issue. It's just to point out that it is *not* only a 2017 / 2018 sort of thing.

Bob
I was wondering if there might have been a stretch of improper installations/quality control on the assembly line, either at AS, or at Dexter.
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Old 09-21-2017, 06:46 AM   #8
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I was wondering if there might have been a stretch of improper installations/quality control on the assembly line, either at AS, or at Dexter.
Hi

Or at dealers, or inspection stations, or repair shops or .... With very small rate failures it's always tough to diagnose.

Bob
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Old 09-21-2017, 09:19 AM   #9
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Every time I hear about this kind of stuff, it makes me wonder why I'm even considering this??? The 27' is exactly what we are looking to purchase.

I can only hope since this is a 'forum' I'm getting a slanted pov.
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Old 09-21-2017, 09:49 AM   #10
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If they are manual adjust brakes, it might be worthwhile to replace them w self adjusters while doing all this work. When I discovered they just replace the whole brake assembly, which makes sense to save labor, I opted to upgrade to self adjusters. Exact fit and work great.
Brad
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Old 09-21-2017, 10:08 AM   #11
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Curious what part the "star wheel" refers to?
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Old 09-21-2017, 10:33 AM   #12
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Hi

Or at dealers, or inspection stations, or repair shops or .... With very small rate failures it's always tough to diagnose.

Bob
This is a brand new trailer, and no one had touched the brakes except maybe the dealer we bought it from . . .
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Old 09-21-2017, 10:44 AM   #13
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Maybe this might help explain.

https://www.dexteraxle.com/docs/defa...s.pdf?sfvrsn=2

Dexter has good online resources.
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Old 09-21-2017, 12:04 PM   #14
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Quote:
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Hi

Star wheel failures on drum brakes are not uncommon. You can find reports of similar failures going back decades. That's in no way to trivialize the issue. It's just to point out that it is *not* only a 2017 / 2018 sort of thing.

Bob
Yes I have heard of failures blaming the star wheel but i have never had an explanation of how a star wheel could fail other than improperly installed or grossly under adjusted. The mechanical parts of a star wheel are highly unlikely to brake. They are just an application of a screw and nut both being over designed to preclude mechanical failure.

My first thought would be if the star wheel was not properly seated in the slots of the brake shoe, riding high on the shoe flange, they would work until the wheel slipped off the shoe flange. Yes that is just an error in assembly but would give an explanation to failure.

Shoes are commonly placed on the backer plate with the star wheel between the shoes and the lower spring holding them in place. The shoes are then placed on the backer plate and folded up the the actuator cam at the top and the upper springs attached. If the star wheel was completely collapsed at that point and the star wheel not seated on the shoes properly the drum could be put on and initial adjust made. This would be a failure riding down the road waiting to fail.
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