Gravely PTO keeps disengaging

[Charlesaf3]

The PTO on my old gravely commercial 12 won't stay engaged. It enages, but then a minute late vibrates loose. Does anyone have any ideas?

Thanks,

 

[2manyrocks]

First try adjusting the spring tension on the arm that engages the PTO.

 

[Charlesaf3]

That makes sense. How would I go about doing that, or is it obvious?

 

[2manyrocks]

Even if it is obvious, I might not explain it that well.

You can find the adjustment procedures in the manuals at this link. OldGravelys.Net: Gravely Manuals & Parts Lists: Walk-Behind Tractors

 

[Charlesaf3]

much appreciated, I'll have a look.

 

[JRobyn]

I believe that is a common symptom of a worn "shipper shaft". Check with Richards - they know old Gravelys well....

Gravelyparts.com