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John Deere Tractors Discussion Forum
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PUMP DRIVE SHAFT 49 A:

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BUTCH PA

05-22-2004 03:08:37




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I WAS LOOKING AT A 49 "A" TO BUY FOR $ 700.00 WHEN HE PUT IT AWAY IT HAD LOW OIL PRESSURE AND HAS NOT FIDDLED WITH IT, EXCEPT TO DRAIN THE OIL AND TRY TO PULL THE OIL PUMP, HOWEVER THE SHAFT FOR THE PUMP DRIVE WILL NOT COME OUT. HE THINKS THE WOODRUFF KEY IS HOLDING IT UP. WHAT DOES HE HAVE TO DO TO GET IT OUT? ALSO BESIDES ADJUSTING THE OIL PRESSURE WHERE ELSE SHOULD I LOOK FOR THE CAUSE OF THE LOWER PRESSURE. THANKS FOR YOUR HELP
BUTCH PA

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HAVVEY

05-22-2004 05:09:04




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 Re: PUMP DRIVE SHAFT 49 A: in reply to BUTCH PA, 05-22-2004 03:08:37  
YES IT COULD THE SQUARE COUPLING WAS LATER UPDATED TO A BETTER ONE THE HEY IS IN THE GEARS THE GEAARS SHOULD FALL OUT THE BOTTOM. I WOULD LOOK FOR A BROKEN OIL LINE THEN CHECK MAIN AND ROD BEARING IF YOU HAVE THE OLDER SHIM TYPE YOU MIGHT PULL A SHIM. THERE IS AN ADJUSTMENT EITHER IN THE CRANKCASE ON THE OIL FILTER OF THROUGH THE SIDE OF THE CRANKCASE (DEPENDES ON YEAR) THAT WILL NOT CORRECT WEAR OR OTHER PROBLEMS.

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BUTCH PA

05-22-2004 03:34:36




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 Re: PUMP DRIVE SHAFT 49 A: in reply to BUTCH PA, 05-22-2004 03:08:37  
SORRY, IT LOOKS LIKE ITS A SQUARE COUPLING IN THE SHOP MANUAL. COULD THIS BE HOLDING THE SHAFT UP?



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Jim

05-24-2004 17:10:27




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 Re: Re: PUMP DRIVE SHAFT 49 A: in reply to BUTCH PA, 05-22-2004 03:34:36  
The oil pump is being held in with the oil lines---you need to unhook the oil lines to remove the pump assembly---and also the new oil pump coupler is deffently a better design.....good luck---jim



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