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Old 06-20-2016, 12:00 AM   #1
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Serpentine belt

Do any of you know the correct number for a 2011 Berkshire 390-60 with a Cummins 6.7?
We are stranded in Lordsburg,Az with a broken belt. Our A/C compressor clutch froze and sheared the belt.
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Old 06-20-2016, 07:27 AM   #2
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No guarantees, but a quick Google search brought up Cummins part #3974248. I would recommend calling Cummins Care at 1-800-343-7357 just to make sure. Sorry you are having troubles and best of luck getting back on the road.
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Old 06-20-2016, 09:02 AM   #3
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That has happened to many of us, ours last fall. Hope you find the correct belt and on your way shortly.
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Old 06-20-2016, 09:18 AM   #4
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Sub and No putt,
Thanks for the reply. I have a mechanic coming this AM, to see if we can short belt and bypass the A/C compressor. The Napa store 60 miles away has a Gates belt for the original length. I may have to drive the Toad to get one if we can find a Compressor.
Road side assistance (Good Sam) could not find any one tow the RV yesterday.
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Old 06-20-2016, 10:16 AM   #5
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Good luck and be safe.
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Old 06-20-2016, 10:38 AM   #6
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Quote:
Originally Posted by cudntherd View Post
Sub and No putt,
Thanks for the reply. I have a mechanic coming this AM, to see if we can short belt and bypass the A/C compressor. The Napa store 60 miles away has a Gates belt for the original length. I may have to drive the Toad to get one if we can find a Compressor.
Road side assistance (Good Sam) could not find any one tow the RV yesterday.

Sorry for your breakdown. The concern of Roadside Assistance is a concern I have. Good Sam can not tow you? That should be part of what you pay for.
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Old 06-20-2016, 11:42 AM   #7
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Good Sam should be called Sam's no good!
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Old 06-20-2016, 01:18 PM   #8
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Coach-net sent a tow truck from about 50 miles away when our belt broke in the middle of KS. Your right along a major interstate and trucks break down all the time out there, don't think good sam looked very hard to find you a tow.
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Old 06-20-2016, 04:53 PM   #9
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Good Sam should be called Sam's no good!

That is the main reason we got rid of Good Sam and Allstate they want your money but when you need them to perform they can't or don't


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Old 06-20-2016, 05:07 PM   #10
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From the Freightliner class, they suggested carrying a serpentine belt, fuel filter and water separator. (which I do). Probably most roadside service will not have the belt, but by having your own, some of the services might be able to install it, without having a big tow job.
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Old 06-20-2016, 06:38 PM   #11
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From the Freightliner class, they suggested carrying a serpentine belt, fuel filter and water separator. (which I do). Probably most roadside service will not have the belt, but by having your own, some of the services might be able to install it, without having a big tow job.
Hank
Hey Hank,

Did the Freightliner class tell you why to carry those extra spare parts? I can understand the serpentine belt. but why the fuel filter and water separator? those are pretty high up and very unlikely anything will hit it, no?
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Old 06-20-2016, 06:42 PM   #12
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Not concerned with something hitting it the filters. Just good to have if you get a bad tank of fuel.
Also, not sure what good the extra serpentine belt will be if your AC compressor is frozen. The frozen compressor is what caused the belt to break in the first place.
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Old 06-20-2016, 06:50 PM   #13
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From the Freightliner class, they suggested carrying a serpentine belt, fuel filter and water separator. (which I do). Probably most roadside service will not have the belt, but by having your own, some of the services might be able to install it, without having a big tow job.

Hank

Hank I understand the spares my only concern with the belt is dry rotting making the belt useless. The filters u can rotate when you need to service them.


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Old 06-20-2016, 07:35 PM   #14
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Name:   ImageUploadedByForest River Forums1466469227.808296.jpg
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Here is a pic of my spare. I have a 2012 390-60. Hope this helps.


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Old 06-21-2016, 06:06 AM   #15
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Hank I understand the spares my only concern with the belt is dry rotting making the belt useless. The filters u can rotate when you need to service them.


Wayne

Vacuum seal the belt and it helps prevent drying out.
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Old 06-21-2016, 07:30 AM   #16
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I carry a spare serpentine belt simply because they seem to be hard to come by. I ordered mine through a local Freightliner dealership/repair facility and it took them a while to even get one in. The A/C compressor might also be hard to come by, but I will take my chances.
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Old 06-21-2016, 08:40 AM   #17
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klucas,
I am going carry a spare belt in our RV. I like the routing diagram that you have. Where did you get it?
Tom,
You are correct in my situation a spare belt would not have worked due to the compressor failure. My only hope would have been to short route the belt,bypass the A/C compressor to avoid a tow. That did not work out. The tow was better than I expected.
Oh well just another "RV Adventure".
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Old 06-21-2016, 10:21 AM   #18
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Vacuum seal the belt and it helps prevent drying out.

I never would have thought of doing that.
Thanks


Wayne
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Old 06-21-2016, 10:40 AM   #19
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Originally Posted by cudntherd View Post
klucas,
I am going carry a spare belt in our RV. I like the routing diagram that you have. Where did you get it?
Tom,
You are correct in my situation a spare belt would not have worked due to the compressor failure. My only hope would have been to short route the belt,bypass the A/C compressor to avoid a tow. That did not work out. The tow was better than I expected.
Oh well just another "RV Adventure".

I changed my belt a few months ago. This is my old one i keep just in case. I did the diagram when I took off the old one. Also FYI you need a half inch drive ratchet for the idler arm.


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Old 06-21-2016, 11:24 AM   #20
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Pat, where did they tow you to?
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