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John Deere Tractors Discussion Forum
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Re: JOHN DEERE 4630 Quad Range tran pump suction screen location

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Author  [Modern View]

04-10-2014 17:33:21

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Waiting on a 5000PSI gauge to come in before I can check it. Thanks

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Tx Jim

04-11-2014 04:31:45

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 Re: JOHN DEERE 4630 Quad Range tran pump suction screen location in reply to Readytoretire, 04-10-2014 17:33:21  
Does power steering operate correctly? While you're waiting on pressure gauge you might consider checking to see if priority valve(parts keys #2-#7A or 7B) is stuck which could also limit pressure to RS & SCV's

This post was edited by Tx Jim at 04:37:42 04/11/14.

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04-11-2014 10:54:24

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 Re: JOHN DEERE 4630 Quad Range tran pump suction screen location in reply to Tx Jim, 04-11-2014 04:31:45  
Yes everything else works good ,steering, brakes, shifting, PTO, just the 3 point is real slow coming up with no load and the hydraulic cyl. will only raise the disk about 2 inches for about 5 tries after being first cranked cold and then will not do that much. The cyl. will hold the disk as far as the hydraulics will raise it, so I figure the cyl. is good if not, when I let off on the lever after getting it up 2 inches the disk would lower itself. From what I can gather from reading on it, the tractor will run fine without the hydraulic cyl. and 3 point working. If I can not find the problem soon I will put my 12V dump bed hyd. pump on the disk to raise and lower it to get the ground ready for soybeans. Then go into the main pump when I have time this summer. Thanks

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Tim S

04-11-2014 12:00:45

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 Re: JOHN DEERE 4630 Quad Range tran pump suction screen location in reply to Readytoretire, 04-11-2014 10:54:24  
My thought is to turn the pump screw in a couple of rounds and see if it gets the pressure up to over come the priority valve...

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Tx Jim

04-11-2014 14:02:00

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 Re: JOHN DEERE 4630 Quad Range tran pump suction screen loca in reply to Tim S, 04-11-2014 12:00:45  
Stroke control screw is parts key #37,loosen lock(#36) turn screw CW a couple of turns as Tim suggested.

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