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Old 01-08-2012, 11:55 AM   #29
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dznf0g,

Sorry if I might not seem to be playing my last card, I have more in mind to do, just haven't done it yet so don't want to say what hasn't been done.

My trailer has new 5,000 lb axles, I recently had a problem, more research etc. etc. I think if you research and look at caliper kits you will find that our disc brakes are actually rated up to 6,000 lb axles. Just installed and from the label "K71-636-00 Caliper replacement kit for Dexter 6K disc brakes left or right hand" Our axle rating is determined by cord length (right?) for weight capacity but brake hardware is capable of higher ratings. So I have a ~9,000 Lb trailer with brakes rated up to 12,000 lbs.

Gary
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Old 01-08-2012, 01:44 PM   #30
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Quote:
Originally Posted by GCinSC2
dznf0g,

Sorry if I might not seem to be playing my last card, I have more in mind to do, just haven't done it yet so don't want to say what hasn't been done.

My trailer has new 5,000 lb axles, I recently had a problem, more research etc. etc. I think if you research and look at caliper kits you will find that our disc brakes are actually rated up to 6,000 lb axles. Just installed and from the label "K71-636-00 Caliper replacement kit for Dexter 6K disc brakes left or right hand" Our axle rating is determined by cord length (right?) for weight capacity but brake hardware is capable of higher ratings. So I have a ~9,000 Lb trailer with brakes rated up to 12,000 lbs.

Gary
Not sure what you mean by cord length, but I have my suspesion that all the 5000# axles supplied by Dexter are actually 6000# axles. Here's why I say that:

There is no 5000# axles on Dexter's website.

When I called Dexter on some subject about the axle, I told them I had 5000# Dexter axles on my AS. They said they were 6000#. I said no, the literature says 5000# and there is a white handwritten 5000# next to the Dexter label. They had me shoot a pic of the label and give them my VIN. They called back and said AS had rated my axles at 5000#, but parts for Dexter's 6000# axle are the correct replacement parts. I believe AS has derated the axle spec so WE WOULDN'T overload other AS systems to the point of potential failure. Published axle ratings in the automotive world (and I suspect the trailer world too) are set to the weakest link in the tire, wheel, spring, axle, frame (Monocoque shell, in the case of AS) system.

All that being said, PLEASE don't apply more load on your axles than specified by AS.
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Old 01-08-2012, 02:29 PM   #31
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I thought that the rating of a axle was tuned by the length of the rubber cords frozen and inserted into the axle housing at assembly, longer cords requires more of a load to rotate, equals spring "rate". If I missed this one, please correct this info. The axle on my trailer is Dexter 58593 and from the a Dexter spec sheet it has 5000RC rated capacity. My data tag on the street front corner states GAWR Each Axle 5,000 lbs. The 2007 Airstream Classic Parts Book lists 410875-17, Axle 5000# 31', 30', 30'S/O.

Agreed, do not overload. I have never even carried any type of water load with my rig.

I just hope Don.44 can get some relief for his in-route braking situation.
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Old 01-08-2012, 02:39 PM   #32
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Quote:
Originally Posted by GCinSC2
I thought that the rating of a axle was tuned by the length of the rubber cords frozen and inserted into the axle housing at assembly, longer cords requires more of a load to rotate, equals spring "rate". If I missed this one, please correct this info. The axle on my trailer is Dexter 58593 and from the a Dexter spec sheet it has 5000RC rated capacity. My data tag on the street front corner states GAWR Each Axle 5,000 lbs. The 2007 Airstream Classic Parts Book lists 410875-17, Axle 5000# 31', 30', 30'S/O.

Agreed, do not overload. I have never even carried any type of water load with my rig.

I just hope Don.44 can get some relief for his in-route braking situation.
Oh, cord = spring rubbers, OK. I have no idea what limits the ratings specifically ON the axle itself.
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Old 01-08-2012, 03:13 PM   #33
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Quote:
Originally Posted by GCinSC2 View Post
I thought that the rating of a axle was tuned by the length of the rubber cords frozen and inserted into the axle housing at assembly, longer cords requires more of a load to rotate, equals spring "rate". If I missed this one, please correct this info. The axle on my trailer is Dexter 58593 and from the a Dexter spec sheet it has 5000RC rated capacity. My data tag on the street front corner states GAWR Each Axle 5,000 lbs. The 2007 Airstream Classic Parts Book lists 410875-17, Axle 5000# 31', 30', 30'S/O.

Agreed, do not overload. I have never even carried any type of water load with my rig.

I just hope Don.44 can get some relief for his in-route braking situation.
I understand, let me clarify: here's the label from my axle (same as yours?)

Click image for larger version

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I have NO DOUBT that a Dexter spec sheet for that specific axle part number, AND all AS material will refer to it as 5000#. Many times when a manufacturer gets a component from a supplier, it will have a unique part # and specing to match the manufacturers needs and to ensure that only that part # goes to AS with those specs. Many times the only difference between those parts and the off the shelf part, is the part#.

I you go online to Dexter and look for their axles, and more importantly, their replacement parts for disc brakes, you will find only parts for 3500#,6000#,8000# and 9000-15000# axles.

No parts for a 5000# axle available? NO, I was told by Dexter use the 6000# components. (first I was told there was no 5000# axle)

SO, the question remains, is there some difference, physically, between an off the shelf 6000# Dexter axle and an AS sourced 58593? Or is the difference only a logistical, specing and labeling issue.

I have no idea.....and it really doesn't matter as (in my case, even at 5000# per axle, for a 10,000 GVWR AS) I'm overloaded...unless I have zero#s on the tongue....that'd be interesting, wouldn't it?

Minimally, I should have no more than 4500# per axle with 1000# tongue, with a 10,000# GVWR trailer.

But from a parts ordering standpoint I was told, right or wrong, to order the 6000# part #s.

I don't know if I were to walk into a Dexter Distributor and asked for pads for my 58593 if the listing would be found.
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Old 01-08-2012, 04:56 PM   #34
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dfnzog,

I have no idea if it is a logistic and lable on the axles. My axle label, same part number as yours.


Gary
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Old 01-12-2012, 04:46 AM   #35
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We made it to our destination 1750 miles Not a fun trip with the brakes working like they did. I stopped at A FL dealer and described my issue . They are offering a free inspection of the Activator . If it is found to be defective they will replace it (NC) but of course there is a catch. I may have to leave it with them for up to 3 weeks . I was told that the new Air Streams have gone back to using electric brakes I wish I had them on mine as my old Air Stream had them and they never gave me any trouble like the disc brakes have.
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Old 01-12-2012, 06:59 AM   #36
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Don.44 - I'll trade you my working electric brakes for your non-working disk brakes

Dexter Axles - I have changed out two sets of Axles and have used Dexter both times.
From Dexter's information they have Torflex axles which are numbered 8 through 13. Each number corresponds with a range of weight the axle is designed for.
For example - My present trailer used a #11 axle. The range for this axle was 3600 - 6000 lbs. Dexter uses different size rubber rods in this axle for the weight specification. The axle I ordered also had a larger spindle, 12" brakes and the tube was larger than the original Henshen axle. The weight rating of the axle was increase a slight amount to get into this heavier made axle.

One way you could get some hints on the exact axle would be too measure the axle tube. The #11 axle is 3.03". A #12 axle is 3.5".
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Old 01-12-2012, 09:51 AM   #37
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Don.44,

Glad you made it safely, hopefully something will be determined and work it out.

crispyboy,

Interesting additional Dexter axle info.

Gary
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Old 01-12-2012, 10:00 AM   #38
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Quote:
Originally Posted by GCinSC2 View Post
I thought that the rating of a axle was tuned by the length of the rubber cords frozen and inserted into the axle housing at assembly, longer cords requires more of a load to rotate, equals spring "rate". If I missed this one, please correct this info. The axle on my trailer is Dexter 58593 and from the a Dexter spec sheet it has 5000RC rated capacity. My data tag on the street front corner states GAWR Each Axle 5,000 lbs. The 2007 Airstream Classic Parts Book lists 410875-17, Axle 5000# 31', 30', 30'S/O.

Agreed, do not overload. I have never even carried any type of water load with my rig.

I just hope Don.44 can get some relief for his in-route braking situation.
Towing the trailer with "FULL" water, increases the towing stability because of a lower center of gravity, especially on curves.

Full water also reduces the fuel economy, by about 2 ounces per tank full. Certainly not something to be concerned about.

Andy
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Old 01-12-2012, 11:17 AM   #39
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Ditto Andy's comments about carrying water. I do it on a fairly regular basis if I will be arriving late or at an unimproved campground. And especially if I know the destination has lousy water. Carrying some water is reassuring on curvy roads. And I look for all the stability I can get on strong windy days.
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Old 01-12-2012, 06:38 PM   #40
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Andy,
Canoestream,

I can at least try the water load. Just haven't done it yet.

Don.44

IF there is any proposal to remove the actuator and leave the brake line (that connects to the actuator) off, you can plug the line to prevent leaking and the DOT 3 from being additionally exposed to atmosphere by using a 3/8" brake line coupling and capping it with a 3/8" brake line plug.

Did you get a chance to do a visual inspection of the brake pads and rotors, anything unusual?

Gary
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Old 01-13-2012, 03:41 AM   #41
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I had the wheels off before I left on this trip and the brake pads are fine like new . Brakes will stop the trailer but you have this lag before they take effect At first as you step on the Tow vehicle brakes the trailer brakes are not being applied then they will almost lock up , and the trailer brake release is also delayed after you let up on the tow vehicle brakes. It's Ok if you have enough time to plan your stops but I don't always have that luxury . The Tow vehicle is a 2009 Dodge and has an exhaust brake I find that very helpful when slowing down It keeps my foot off the brake . I too have found it tows better when I have a full water tank . I feel I have better control espically when a large truck passes you at a high rate of speed.
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Old 01-13-2012, 07:57 AM   #42
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Don.44,

What type of brake controller do you have? The controller in the truck / under the dash? What are the existing settings for the controller and does it have any other settings?

Airstream has some very specific brake controllers they think work best with ActiBrake and the other brands of actuators. If you have not already checked with AS it may be worth a phone call to them.

Not all brake controllers are the same and the setting (if you can change them) will make a significant difference. When I had my problem recently I tried a number of different settings and found some of them just don't work well.

Lucius
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