Posted by jdemaris on August 28, 2009 at 17:55:51 from (67.142.130.19):
In Reply to: 2640 pto posted by dieseldoc on August 28, 2009 at 15:40:33:
Does the hi-low still work OK? Hi-low gets it pressure oil from same place as the PTO. If the PTO guit on him all-of-a-sudden, rather then slowly over time, I'd suspect an oil-pipe fell out. The entire 40 series was prone to this problem when equipped with the optional independent PTO and hi-low (or reverser).
When you pull the pot-metal cover off the top of the trans, there's a mess of steel pipes in there that plug into that cover. They carry oil from the transmission pump, to the PTO, etc. These steel pipes seal on both ends with a single o-ring. The 40 series had problems with those pipes vibrating and falling out. There were update kits to fix, but doubt all tractors got them. PSI is supposed to be around 150 PSI, but 100 PSI ought to turn the PTO unless it's unhooked, or burnt out.
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