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John Deere Tractors Discussion Forum
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Re: 2630 Slow 3 Point Lift

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Tim S

03-19-2013 05:56:32

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You guys are referring to the "rate of drop" valve, has nothing to do with the speed of the hitch 'raising' A slow hitch raising is attributed to oil flow, a problem in the priority valve, is normally where to start if the stand by pressure is good at 2250psi.

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Rob Maloney

03-23-2013 19:21:09

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 Re: 2630 Slow 3 Point Lift in reply to Tim S, 03-19-2013 05:56:32  
Update. Went up today to check out the flow valve that Tx Jim spoke of. While warming up the engine, I decided to work the 3 point a few times for the heck of it. Turns out, if I position the remote valve lever in the "neutral" position the 3 point would raise at the correct speed for 2 orc3 cycles. Then I would move the lever to the "activated" or forward position once the 3 point started raising slow, and it would raise at the appropriate speed a time or two, then I"d have to return the lever to the neutral position again To get it to raise at the normal speed. Plus, it seemed to labor the engine some. Is there a valve sticking somewhere? I went ahead and pulled the flow valve, and it appeared to be in good condition with no obstructions or dirt. Any ideas are appreciated...thanks.

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DaveH IA

03-24-2013 11:37:54

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 Re: 2630 Slow 3 Point Lift in reply to Rob Maloney, 03-23-2013 19:21:09  
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You must have a 2 spool valve on your loader plugged into your rear outlet???--If so It sounds like you have an open center valve on the loader or a closed center valve thats leaking and acting like an open center valve-- some valves will work both open and closed center by changeing a plug on the boby of the valve- a square packing on the plug will sometimes blow out and let it leak by--If the 3 pt works when you put the SCV lever in neutral it must be the valve is wrong or leaking-- that would cause the punp to pull and labor the engine Just a thought!!

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Tx Jim

03-24-2013 04:44:59

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 Re: 2630 Slow 3 Point Lift in reply to Rob Maloney, 03-23-2013 19:21:09  
The scv needs attention. One or more of the 4 poppet valves are leaking

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Rob Maloney

03-24-2013 10:28:38

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 Re: 2630 Slow 3 Point Lift in reply to Tx Jim, 03-24-2013 04:44:59  
Are you talking about the Stroke Control Valve or the Selective Control Valve? Thanks...

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Tx Jim

03-24-2013 11:53:06

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 Re: 2630 Slow 3 Point Lift in reply to Rob Maloney, 03-24-2013 10:28:38  
Sorry for us old time JD people SCV stands for selective control valve aka rear remote valve.

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Tim S

03-24-2013 10:40:23

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 Re: 2630 Slow 3 Point Lift in reply to Rob Maloney, 03-24-2013 10:28:38  
I have been dealing with a 2030 with similar issues, I have been dealing with this system since 1974,,and "still" I have trouble working out their problems,Darn it, On the one I am working on I have it narrowed down to the Priority valve, and I am going to order a new valve housing tomorrow morning, I think my bore is worn and allowing pressure oil to get past the sleeve and triggering the priority valve to the shut or low pressure position, all my stand by pressure is good, this seems to happen when i go to full throttle while working the loader..

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Tx Jim

03-19-2013 06:24:33

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 Re: 2630 Slow 3 Point Lift in reply to Tim S, 03-19-2013 05:56:32  
Parts key #8 in photo. As Tim stated only affects lowering of 3 pt but has nothing to do with raising time.

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