Windshield Wiper Broke

[Tow4]

My M818 has air powered windshield wipers. I thought my driver side windshield wiper was broken. It turns out the little button by the exhaust pipe that parks the blade was stuck in. I held the park button in on the passenger side and the pressure built up enough to pop the park button out on the driver side. Then the wiper worked.

I didn't find this when I searched so maybe this will help some one.

 

[phil2968]

I had to to the same thing to one of mine.

 

[MWMULES]

About once a year I put a couple drops of air tool oil in the the inlet of my wiper motors, seems to keep them running smooth.

 

[Gamagoat1]

Anyone have a couple of spare nuts that go on the end of the wipermotor shaft??

 

[steelandcanvas]

Anyone have a couple of spare nuts that go on the end of the wipermotor shaft??

I'll take a look around tomorrow Mike. Do you need them before the Airshow? Give me landline if you do.

 

[Gamagoat1]

Thank You Sir!!

 

[joesco]

Thanks, on my M931, my driver's wiper is working fine, but my passenger side is not. Is the button that you are referring too, look like a wedge, on my wiper motor it does. It is right in front of the exhaust pipe, correct? If it is, it doesn't move, probably to many layers of paint.

Also, which is in inlet hose for oiling, the front or rear. Thanks for the great tips, hope it works, so I can get my State of NH vehicle inspection this week!

 

[MWMULES]

The 939 series wipers are different from older M series, trouble shooting for you truck is found here
M939_P2P.zip
M939 Series Interactive Systems Guide - Download .zip file, right-click the .zip file and select unzip contents, put the M939 P2P file in your Program Files directory, open the M939 P2P folder, right-click on the runa6w32.exe file, select Send To, select Desktop (create shortcut), go to desktop, right-click on the new shortcut, select properties, select the shortcut tab, make sure the target box shows "C:\Program Files\M939 P2P\runa6w32.exe" c:\Program Files\M939 P2P\nav.a6r, make sure the start in box is empty. This should allow you to double-click the shortcut on your desktop and start the P2P program.