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Tractor Talk Discussion Forum

FORD/New Holland Swather 2550 Drive problem

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Joe in NM

09-23-2007 07:48:38




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We are a long ways from no where, especially a prominent dealer with trained service men. Our 2550 New Holland Swather will not engage the left side drive pump. We had to replace a shaft and splined collar behind the planetarys, that were stripped out and wore. It worked for a while, then quit. Took it all back apart, down to removing the brake plate. Everything was fine. Starting it up with the items removed, it still didn't work, until I put a vice grip on the motor shaft and turned it, with the engine shut down, and it began to build pressure in the line. After that, it worked again starting it up. We roaded it 3 miles, parked it, started it up the next day and used it for 4 hours, everything OK. Now after being parked again, it will not drive the left side again. Jacking the wheel off the ground and trying to manually turn the pump over again, no longer produces any results. Any IDEAS???? Anyone have a hydrolic schematic for this machine????? Help anyone????? Thanx.....Joe

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Walt Davies

09-23-2007 13:14:30




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 Re: FORD/New Holland Swather 2550 Drive problem in reply to Joe in NM, 09-23-2007 07:48:38  
Sounds like it is sucking air from somewhere. You need to follow the hydraulic system back to the motor and see where its not getting though. Or maybe a relief valve it sticking open. I would crack a line here and there to see what is happening, be careful not to get hit with high pressure oil.
Walt



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