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Old 06-10-2019, 02:48 PM   #1
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Join Date: Sep 2015
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Windshield wiper arm

How hard is it to replace the arm?
I was driving through a rain storm when all of a sudden my wiper arm went 90 degrees to the left. The arm was protruding past the drivers side mirror. Once at the campground I tried tightening the nut on the wiper arm, that didnít work. I took of the arm partially,it was still attached to the rv by a black wire, to see that there was a sleeve or collar that attaches to the pin of the arm. What is the wire? Does the wire just unplug to attach a new arm?
Any help would be appreciated.Click image for larger version

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Old 06-10-2019, 02:56 PM   #2
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That "wire" is the hose for the spray, might just pull off but they really get tough to remove if they've been on a while.

2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
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Old 06-10-2019, 02:57 PM   #3
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The "wire" is actually the windshield washer supply tube. It just unplugs.

The center hub of the wiper arm is made of a soft metal that the wiper motor splines cut into when a new arm is properly installed. Once that soft-metal center strips out, you need to replace the arm with a new one. Tightening the old arm is, at best, a very temporary fix. In a pinch, placing a few strips of aluminum foil over the wiper motor splines and re-installing the wiper arm MIGHT buy you a short respite to get where you can replace the damaged wiper arm.

Contact the Newmar Parts Department to order a new wiper arm.

Jim (W7DHC), Diane & Mini Schnauzers, Lizzy & Ellie
2018 Mountain Aire 4047 + 2014 Honda CR-V "toad" w/AF1
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Old 06-10-2019, 04:06 PM   #4
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Has your coach (whatever it is) ever had windshield work done? The wipers are designed to be pressed on "once". If they removed and reinstalled them, you are seeing the result. It's a well known issue - do a search. Replacement wipers are in the $150 range. I met a guy that kept getting a nuisance leak attended to and each time they removed his wiper arm - cha ching. Unfortunately I am currently getting my windshields replaced - oh boy...
Rick and Larrie Dee
1997 40' Newmar London Aire DP CTA 8.3 (Mechanical) 325 Spartan MM
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Old 06-10-2019, 06:47 PM   #5
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No I never had any windshield work done. Iíll try the foil for a temporary fix and order a new wiper arm. Thanks for the help.
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Old 06-11-2019, 10:14 AM   #6
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I know you own a Newmar, but my assumption is that the wipers are the same as my Entegra. Iíve uploaded the procedure used for attaching the wiper arm on an Entegra with the same soft metal that forms on the spindle. I had the same issue with my passenger wiper last year. We donít drive in a lot of rain storms.

On my Anthem, the upper level part number for the wiper setup is on the wiper motor. May be the same on your Newmar. This has allowed me to identify and order parts from Diesel Equipment. If anything, this may help with your problem.

Take a look at the documents and I hope they help.....

Good Luck
Attached Files
File Type: pdf New_Arm_Installation.pdf (347.7 KB, 9 views)
File Type: pdf Wiper_Arm_Assembly.PDF (502.4 KB, 6 views)
Paul and Diane
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Old 06-11-2019, 02:08 PM   #7
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Not sure which coach you have, but this is the wiper system on my Dutch Star.
Attached Files
File Type: pdf wipermechanism.pdf (496.6 KB, 14 views)

2015 Dutch Star 4381
Workin on the road
Currently Houston Tx
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wind, windshield

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