Re: 424 PTO problems

Posted by Marcus Reddish on February 28, 2007 at 10:12:42 from (12.150.84.218):

In Reply to: 424 PTO problems posted by Burl on November 27, 2006 at 17:53:41:

I have the same problem on my 424. The pto works, but the lever doesn't stay engaged like it should. From my examinations of the pto service book, there are 2 possible causes. Option #1 is the sliding gear/coupler that engages the PTO inside the tractor is worn/broken. This requires splitting the tractor to fix (I think). Expensive/laborious. Option #2 is the PTO shift lever is not working properly. This is much cheaper, and somewhat more likely to have problems. The pto lever has 2 spots that seem problematic. One is the pin/clamp mechanism where the lever attaches to the shaft. If this slips then when you shift the lever it is only engaging part way. This could lead to problem #1 (broken/worn coupler). The other potential problem with the lever is the little spike that is welded on and drags against a groove on the transmission. This spike creates friction and is supposed to hold the lever firmly in the shifted position. But if there is any slop in the lever then it doesn't provide the friction needed to hold the pto engaged, and again my lead to condition #1. If your pto is working properly and does not slip under hard working conditions, then the bungee is just doing the work of the friction spike. Heating and bending on the spike/shift lever, or tightening the slop out of the lever will likely fix your problem.
Does anyone else have experienced with this?

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