I stopped by our storage facility and found out that the recent snow (nearly 30") came off the metal roof and straightened (not bent) my passenger side wiper arm straight down. The blade assembly is a little twisted up, but the arm structure is straight. I'm thinking that either it spun the wiper arm on the shaft, or internal linkage gave way. The drivers side blade was a bit twisted but the arm was still "on the windshield".
It wasn't a good time to work on it so I'll be going back later. This arm doesn't have an acorn nut bolting it to the shaft like others I've had. The cover over the shaft is smooth with no apparent fastener. Do you think the arm simply pulls off the shaft once you swing the arm away from the windshield?
The roof at this storage place is 40ft and the coach is 39" 9". I noticed two other coaches also suffered the same fate.
I'm hoping it didn't damage the wiper linkage.
As always, much appreciate any thoughts or suggestions.
cheers,
Joopy