BAC Forum
General Boards => Technical Support => Topic started by: Trige Gleim on January 25, 2020, 10:27:23 PM
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I'm trying to find replacement wiper shafts for my 07 Beaver Contessa due to the splines being stripped. Under the current condition the wiper arms will not stay securely locked in place causing a safety issue when operating the wipers. The wiper arm splines are also stripped so I need wiper arms. Does anybody have knowledge as to where these can be purchased? The part number for the wiper subassembly is 238-1896/909309296. The aforementioned part number is a child part to the entire wiper assembly. Out of this subassembly, all I really need are the shafts so I don't want to buy the entire subassembly if I don't have to. AM equipment is the manufacturer and I plan on calling them Monday but I thought I'd throw this out to our club in the event someone has previous experience in this area. I've attached a picture of the subassy part number and the shafts by themselves to give you a visual. Again, I'd like to buy just the shafts and wiper arms if possible. Thank you.
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You can try NW RV Supply, but calling AM as planned is likely a good idea.
Also try to determine what caused that much wear/stripping.
http://www.nwrvsupply.com/mm5/merchant.mvc?Screen=SRCH
https://www.amequipment.com/commercial-duty-wiper-assemblies?rq=2P%20
Joel
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Trige,
I had a similar problem with one of my wiper arms. The problem can be that the splines on the shafts get partially filled with metal from the arms and since the splines are so shallow, they tend to lose their ability to engage and hold the arm in place. I resolved the issue by vigorously cleaning the shaft splines with a wire brush. It didn't appear to have changed anything but after reinstalling the arm and torqueing to spec, the arm has worked with no problem for over a year. You may also need to clean (or replace) the arm to get it to grip properly.
Steve.
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Had the same problem. As a temporary fix I mounted the wiper arms in their proper location, tightened the nut then drilled a hole through the wiper arm and the shaft then put in a roll pin. Worked quite a while but did replace the parts.
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What are you torquing the wiper-arm retaining nut to? If the Nut is under torqued it can slip on the shaft.
In the link (to AM Equipment) the "230 Unitized" engineer drawing lists the spec as 18 lb-ft torque for the shaft nut.
The other engineering drawing at the AM Equipment link (attached below) shows the nut torques to be 20+/- or 25+/- for the tapered shafts.
However I'm not sure which model Wiper assembly our/my coach is using. Probably the 230 Unitized.
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AM Equipment has the parts I need. All I really want are new wiper shafts and wiper arms. They will sell me wiper arms but will not sell me just the shafts. They will only sell the entire wiper motor assembly at a cost of $500. What I'm going to do is clean the current shafts as best I can and then install new wiper arms. Hopefully this takes care of the problem. Thanks to all for the input.
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Have you tried here? http://www.dieselequipment.com/index.php/shop/wiper/