Nut provides torque to hold wiper body firm to transmission knub
Occasionally, the nut on the drivers side wiper looses up, as there is no lock washer, and the blade can get tangled in the passengers wiper. Of course, this only breaks during a Florida downpour (3X)
I have not yet not yet seen the stripped condition of the transfer knub (don;t know what to call it) but I imagine it needs replacement as well
as the entire wiper arm assembly- I have never seen one with a hole for a treaded screw and nut to hold the blade. Unusual design.
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Re: Nut provides torque to hold wiper body firm to...
Yes it is but there is more than 1 way to tie your shoes! I would replace the arm assembly and use a high quality epoxy, like JB WELD or an epoxy we use in replacing body panels called panel bond. Clean the old hub with a brass brush and the new part just needs to be washed with acetone or a like cleaner. Apply a small amount to each and install. No more sword fighting wiper blades. Your welcome in advance...dc
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The first thing to check is a 13mm nut that holds the wiper arm in place.See if you can move the wiper arm freely back and forth.There is a nut at the base of that wiper arm,Lift up a cover that is hiding the nut. If it comes loose from being froze from ice or snow. Put the wiper in its rest position and tighten the nut back up.
You have an assembly of arms that hook to motor one for each side sounds like your left one has come loose or is at least slipping you will have to remove the crowl panel at the wipers to check .The wiper is held on by a nut. The nut is under a plastic cover at the pivot point of the wiper. Loosen the nut then align the wiper blade where it's supposed to be then tighten the nut.Its not adjusted right, remove the nut that holds your left wiper on, then pry it off the shaft, lift the wiper up all the way then just pull up straight off the shaft, then put it back on so it starts at the left lower edge of the windshield.----First, start by checking the nut at the base of the wiper arm, if it is good and tight, then you have to remove the cowl and check the wiper linkage.If the linkage has come apart then you will have to replace the piece that has come loose.------ Getting, this possibilities checked will help.Thanks.Helpmech.
The wiper arm "nut" is the key...try tightening the nut down...be sure the wiper arm is in the correct (same) location as the drivers side...you can do this by running the good side, and turn wipers off before turning the key off...this will assure proper alignment...Don't be afraid to torque the nut down...this is the most common problem...as winter and ice take a toll on frozen...wiper arms that are pulled loose from the ice or snow...Hope this helps.
You can replace the nut with a locking style nut. Your local hardware store should be able to provide you with one.
You can also purchace a small tube of "lock-tight" (brand name) that you apply to the threads then tighten the nut. Once the lock tight has dried, the nut will not come loose.
What kind of vehicle is it?? Some vehicles have a nut holding the arm on a splined post. This sound like your problem. Check to see if a nut is loose holding the arm on. If so, with wipers off, locate the arm in the proper rest position to match the other side and push it down firmly on the post. Tighten the nut. If the arm has been loose for a while the splines on the post may be too worn to keep the arm from moving. If this is the case you need parts, probably the the whole wiper linkage. Few models have the pivots separately.
There is a large lock nut that holds the axle into the splined end inside the transaxle. This nut is usually torqued into place very well though, but if it is loose or was not torqued properly then this could cause free-play in the axle. You can look up the torque specs online or use a chilton or Haynes manual to get the specification.