Curtis Cab - windshield wiper motor

[WBWI]

The wiper on my tractor stopped working. It looks like the drive pin on the wiper motor is still "agitating" so the connection to the wiper blade must be loose or stripped. Does anyone know how the wiper blade attaches to the motor and if it can be tightened?

 

[banjodunn]

G'day you should find a plastic cap at the base of the wiper where it attaches to the motor pop this up and tighten the nut underneath just make sure you have the wiper sitting in the spot it always sits in when it is in the home position


Jon

 

[WBWI]

Thanks Jon. I'll take a look at it tonight or tomorrow when I some free time.

 

[WBWI]

The good news is I got the wiper arm off the motor. The bad news is that mine cannot be tightened. It turns out that the splined hub that drives the wiper arm is cheap pot metal. It was supposed to be staked to the motor drive shaft. Over time it worked loose. The splines also look fairly stripped. I imagine what happened is the wiper was frozen to the windshied and the previous owner turned the wiper on before freeing the blade. Cheap metal, torque and frozen wiper blade = eventual failure. It will cost me $180 for a new motor.

 

[aczlan]

Cheap metal, torque and frozen wiper blade = eventual failure. It will cost me $180 for a new motor.

Is the connection the type that has angled splines on the shaft and matching splines on the wiper arm with a nut on top to lock them together? If so, try putting a flat washer under the nut, that will let the nut push down harder on the wiper arm and (as long as you break things loose first) should allow you to keep using it without needing a new motor/arm. At least that is how it worked on my car when I did that in the winter of 2007. It is still working perfectly.

Aaron Z

 

[WBWI]

Is the connection the type that has angled splines on the shaft and matching splines on the wiper arm with a nut on top to lock them together? If so, try putting a flat washer under the nut, that will let the nut push down harder on the wiper arm and (as long as you break things loose first) should allow you to keep using it without needing a new motor/arm. At least that is how it worked on my car when I did that in the winter of 2007. It is still working perfectly.

Aaron Z

No the spline on the drive shaft is a metal sleeve that was originally staked to the shaft (similar to a pulley on an electric motor). Unfortunately it is not sold as an independent replacable part. Being pot metal I don't think I could successfully drill a hole through it and the wiper motor shaft and pin them together. I think the splined hub would crack too easily. The dealer suggested JB Weld or someother type of epoxy product but it looks like the spline is fairly stripped and probably would not engage and drive the wiper arm that well.

 

[pilot-werx]

You would be surprised at how well JB Weld might work on that...