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Case Tractors Discussion Forum

Hydraulic Pump

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Case 930

10-05-2009 09:50:01

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Im installing a hydraulic pump on my 1966CK and wondering how the coupler to the pump/sprocket stays in place. Thanks
email is open

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bradley martin

10-05-2009 18:53:40

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 Re: Hydraulic Pump in reply to Case 930, 10-05-2009 09:50:01  
As mEl said, originally there was a spring wire ring to secure the coupler during assembly. You are on the right track w/ the grease idea....I have found it works O.K., when the spring ring is missing. Try to have the cross grooves lined up so that they mesh on the 1st try, or the coupler may fall off and you are back to starting over.

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Case 930

10-06-2009 05:42:39

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 Re: Hydraulic Pump in reply to bradley martin, 10-05-2009 18:53:40  

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10-05-2009 14:30:03

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 Re: Hydraulic Pump in reply to Case 930, 10-05-2009 09:50:01  
The 90 deg offset will not let it get out of place once installed. It may have a spring ring to help keep it there till its meshed. mEl

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Case 930

10-05-2009 16:54:19

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 Re: Hydraulic Pump in reply to mEl, 10-05-2009 14:30:03  
Thank you for your knowledge. I would think some heavy grease to secure it(coupler) to the pump side? What also confused me was in the schematic it shows 2 bushings for the inside of the pump drive sprocket. This is a 540 PTO.
Thanks again.

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10-06-2009 05:48:45

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 Re: Hydraulic Pump in reply to Case 930, 10-05-2009 16:54:19  
Since you refered to the pump drive sprocket bushings you must be working on a 6 speed tractor? There are 2 bushings in the sprocket. One on each end with a small space between them. The only time I have ever seen them go bad was in a tractor that had no hydraulic pump. The sprocket and chain is still in there to splash oil on the PTO bearings, and with no reason to check the oil it was run empty.

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Case 930

10-06-2009 05:56:04

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 Re: Hydraulic Pump in reply to DKase, 10-06-2009 05:48:45  
Could you send me a email with a phone#

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