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Old 09-18-2020, 09:37 PM   #1
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Need new rotors for 03 sig

Well looks like we need at least 1 new rotor. The front 2 have cracks and hot spots. the tag pads are ok. but the right rear drive rotor is cracked through.

We are in Boise ID at the moment and have plenty of hills to go between here and Memphis. Freightliner inspected the brakes and told us to nurse it back home. They did not want to touch it.

They said once they take it apart it may need calipers too. (One side was smoking coming down to White Bird ID. 7% grade for 8 miles)

What does Monaco being out of business have anything to do with this. Whats going on and where does roadmaster enter into this. Not sure who or where do I go from here.

thanks guys
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Old 09-19-2020, 06:08 AM   #2
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The axle/hub/brake components are all used in heavy OTR truck applications. The parts should be available but the problem is unless you know the make/model of the components they may have to be ordered.

If you look on the build or data sheet for your rig, if you have it, it will list the axle model/sn, you might be able to cross reference the numbers.

Hopefully someone will the same rig will chime in with the part numbers. If you can get the information call a larger truck shop in a larger metropolitan area on your route back the Memphis and give the information and see if they can help you out.
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Old 09-19-2020, 06:54 AM   #3
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I have a parts list for a 2004 -2005 Beaver-Monaco with the Bendix ESD-225 brake setup. You maybe able to match up these parts to your Coach and see if your are the same. After 2005 the Bendix disc brake setup was upgraded to the ADB-22X style.

The Axle model is not of much use because the brake assembly (a.k.a. "Wheel End") can be different on the same axle model. Meaning you could have drum brakes or disc brakes on the same axle or any other setup the builder wants to use.
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*SMC-Bvr-Mnco History/Chassis Info https://1drv.ms/f/s!AtvAXw_lfqbToxXYREK9YdBP08Jn
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Old 09-19-2020, 06:57 AM   #4
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Dang, it's Saturday! There is a shop in Boise called Alignment Specialists. We had them replace our shocks, last summer, and they did good work. They have a good reputation in the area. They were recommended to me by a friend who used to be a supervisor for one of the truck shops, maybe even Freightliner.

You do have some grades to deal with getting home. I hope Freightliner gave you good advice to "nurse" it home. I will say that when we come down Whitebird, we use very little braking to control our speed. We keep the speed low enough that the Jake, on high, can keep it under control. We might press the brake for a few seconds, maybe a half dozen times coming down Whitebird, and we're good. But you have to keep ahead of it on anything 6% or steeper or you're going to work those brakes really hard. (I don't know if you looked to the east while you were coming down the grade, but if so you would have seen what we used to have to deal with back before the early 70's. You'd have all been "car-sick" by the time you got to the bottom of the old Whitebird Hill!!!)

If you are going to hang over the weekend, you might give Alignment Specialists a call Monday. (You might try today, just in case.)

Jacwjames is right on. It turns out that you'd be surprised how little of our coaches area actually "made" by Monaco. All of the suspension parts were "off the shelf" at the time, and should still be readily available in most instances. That applies to almost everything inside or outside of your mtorhome. Thankfully!
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Old 09-19-2020, 08:59 AM   #5
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Kaiser Alignment & Brake in Eugene, OR did the majority of brake and alignment for Monaco. Carry Kaiser (541-344-5887) probably can help you. He sure helped us when we needed a replacement clapper.
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Old 09-19-2020, 10:58 AM   #6
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Brake Parts

Here are some part numbers for a 05 signature. Rotor - Centric 120.86007 - about $180. Caliper - Haldex 790-94049 - finditparts.com $1046 plus shipping. Pads - Haldex 790-22012 - finditparts.com $128. Adjustment shaft kit - Haldex 790-94892 finditparts.com $8 . Calipers are known to freeze up ( water intrusion ). Air actuated caliper but all mechanical adjustment mechanism inside (cam, needle bearings, gears, threads ). Can be repaired if you have the time and place, and doing your own work. Not cost effective at $130 per hour. Caliper is heavy, weighs 90 lbs. Same caliper at all four positions. Adjustment shaft is under little round rubber cover on face of caliper ( 8mm or 5/16 socket ). If you can't turn the shaft the mechanism is frozen up. If you try too hard you will twist off the shaft (it has a shear point). I hope this helps and good luck. Mike
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Old 09-19-2020, 12:10 PM   #7
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Quote:
Originally Posted by hockeydiesel View Post
Here are some part numbers for a 05 signature. Rotor - Centric 120.86007 - about $180. Caliper - Haldex 790-94049 - finditparts.com $1046 plus shipping. Pads - Haldex 790-22012 - finditparts.com $128.
Can you confirm - is the p/n for the Pads a 790-22012 or is it a 790-22021?
just wondering if the last two digits got transposed (by one of us).
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Old 09-19-2020, 06:32 PM   #8
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Pads part number

My info shows Haldex 790-22012. Shows up good on google search. I think it is a good number. Mike
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Old 09-19-2020, 10:13 PM   #9
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Well what can I say, thank you all so much! Seriously I dont know what I would have done without you these past few years.

So today I called Dana Spicer and left several messages. I have not heard back from them yet. I also visited 2 truck repair shops in town. The hourly rates thus far range from 125 to 155 per hour. Come Monday I will be able to visit any repair shops I want. Since these are air brakes I prefer not to go to Joe's auto repair. I am concentrating on 18 wheeler truck repair shops. Fleetpride marking National Brake Safety week with free brake inspections and good brake prices.

Sometimes I think repair places bank on the fact that they know you can't bring back a repair job that needs repair again.

Anyway we found one shop that can lift the entire coach. This seems pretty cool. We checked the manual and could not find any info on the proper jack points so my DH thinks this would be a better option.

So we have more phone calls to make Monday and if we can get the parts from Fleetpride or whoever, we will take those to the shop.

I suppose freight liner exaggerated a little bit. He obviously did not want to work on it. Saying that it will cost thousands of dollars and that parts were very difficult to get if at all possible. If we get the parts ahead of time I think that will save us the anguish of the shop uping the cost because of the inconvenience finding parts. This is an easy job for an experienced shop and we shouldn't have to go broke for brake rotors. BTW we have 103,000 miles on our coach. Stay tuned for Mondays update.

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Old 09-19-2020, 10:31 PM   #10
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Attached is the service data for Bendix ADB22X air brake calipers and rotors.

On page 8 it says some cracks are acceptable. I think the key is they should not reach the edge.
- For standard Bendix rotors, cracks
running in a radial direction — like
spokes of a wheel (see Area H) — less
than 0.06 in. (1.5 mm) deep or wide
are acceptable if they do not reach
either edge (see G). Cracks are only
acceptable if the length of the crack is
less than 75% of dimension “f” (the width
of the rotor contact area).

- For Bendix Splined Disc rotors, radial
cracks are only acceptable if they are
less than 0.04 in. (1.0 mm) deep or
wide and if they do not reach either edge
(see G). Crack lengths must be less
than 75% of dimension “f” (the width
of the rotor contact area).

Hope this helps.
Attached Files
File Type: pdf Bendix ADB22X Disc Brakes (Front).pdf (2.46 MB, 4 views)
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Old 09-20-2020, 10:51 AM   #11
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Quote:
Originally Posted by Moira View Post

So today I called Dana Spicer and left several messages. I have not heard back from them yet.
Let us know if they ever get back to you.

I recently contacted them trying to get a seal part number, and if you don't have a dealer licence number, they don't want to deal with you!
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Old 09-20-2020, 11:40 AM   #12
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Sorry I cant offer advice on a repair facility but I will interject this, and as stated earlier by others Im trying to figure out why these brakes got so hot in the first place if using a JALE BRAKE and overheated to the point of cracked rotors?

Lots of reason I can think of from a mechanical standpoint but I hope not pilot error ( expensive lesson) .

Have your mechanic of choice make sure everything is functioning as it is suppose to from a mechanical stand point including you JAKE BRAKE or the likes of and if you're not familiar with burnishing of new brake pads to the rotor process I would have your mechanic take it for a ride when done and and do so properly ...... if NOT done properly you wont be happy with the effectiveness of the coaches ability stop PROPERLY ( even with the new brakes) or maybe even worse.

HTH
https://www.wagnerbrake.com/technica.../break-in.html

Happy Trails
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Old 09-22-2020, 03:32 PM   #13
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Wow, where do I start, this has been a huge learning experience.

So Monday I called Monaco and got the missing serial no. I needed for the rear (drive) axle. It was not on my build sheet but no one knows why.

2003 Monaco Signature rear axle Model no. 22060SH serial no. HN00932760

I think I had called 5X and emailed Dana Spicer on Saturday to no avail. But Monday I got the real phone no. for tech support who emailed me back the part no.s.

Dana Spicer tech support 419 866 3951 techservice@dana.com

front and rear hubs are Webb. The part no.s below are Dana's. But the rotor is only available through Bendix. The pads are Spicer.

front and rear rotor no. 976030N
pads are 976003N

Fleetpride located 3 rotors available in the US and Canada. We will change the 2 drive rotors for now. $450 each. the pads are $180 for one axle.

So on Saturday and Monday we went around and visited some shops.

JBJ Diesel motorhome shop rate was 155/hr. They have not gotten back to us for an estimate. Their truck shop rate was 110. The higher rate was due to difficulties with transmission, engines and problems finding parts. None of which applied to our brake job. It was a very nice shop though.

JG Peterbuilt Their shop rate was $125/hr. Couldn't find the parts and didn't have the right jacks.

Rush Truck Centers shop rate $80/hr. They didn't care about using our parts. They do have a place in the parking lot for us. They are quoting us $400 for labor for the 5 hour job. They have tried to cross reference the parts to use a different brand for the front 2 wheels but there was no match.
They have been in business for 50 years and have 120 locations nationwide.

We did look into all the recommendations and there are a lot of truck shops that will not work on motorhomes. We did not go to Alignment Specialists because they were closed Saturday. But thank you Jim and Angie anyway.

attached is the TMC Recommended Practice that Webb sent me. I believe it is similar to what Vito posted. TMC RP 652-ADB Inspection.pdf

My part no.s are the same as what CountryB posted on the second page but not the first.

Lastly to RobRoy, we don't know when that rotor cracked, it may have been the last straw for that rotor. We were doing about 50 mph and only used the brakes to slow for a turn. The nail holes in my armrest can attest to that. Perhaps it isn't, I didn't take the picture and there is not consensus as to what the picture is showing. Ill take some more once we have it off. And thank you so much for the break in information!

I'll update again.
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Old 09-22-2020, 07:15 PM   #14
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A Peterbuilt shop that doesn't have a 20T bottle jack !!!
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