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Eastfork Regular
Joined: 29 May 2011 Posts: 103
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Posted: Fri Aug 26, 2011 8:21 pm Post subject: 4430 hydraulics |
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My 4430 remotes "chatter". I have a loader hooked in and I go to raise it, it chatters for a few seconds and goes up. It also does it with the disk and cultivator but not nearly as bad. It's been like this for awhile but slowly getting worse. Also the loader has a hard time lifting a 1200 lb bale. What could going wrong and are the two problems related? |
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Aaron in IL Regular
Joined: 02 Aug 2011 Posts: 73
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Posted: Fri Aug 26, 2011 8:30 pm Post subject: Re: 4430 hydraulics |
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Got plenty of hydraulic oil? Also is the hydraulic oil filter partially plugged? |
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JMS/.MN Tractor Guru
Joined: 05 Mar 2009 Posts: 11817
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Posted: Fri Aug 26, 2011 8:55 pm Post subject: Re: 4430 hydraulics |
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Job one on any hyd issue is CHANGE THE FILTER! Cut it open and look for foreign parts- brass, pieces of linings, etc. Pull the transmission screen and check for the same. Might be PS stuff or brake stuff peeling off. |
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Tx Jim Tractor Guru
Joined: 14 Feb 1999 Posts: 24883
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Posted: Sat Aug 27, 2011 3:04 am Post subject: Re: 4430 hydraulics |
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Besides hyd filter and sump screen maintenance check stand-by psi. Set it to 2350-2400 psi. |
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Eastfork Regular
Joined: 29 May 2011 Posts: 103
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Posted: Sat Aug 27, 2011 5:24 am Post subject: Re: 4430 hydraulics |
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I always check the oil and change the filter every year and this tractor gets 75 hours per year. My op book does cover the trans screen, where is that located and how do service it? How do I check standby pressure? |
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Tx Jim Tractor Guru
Joined: 14 Feb 1999 Posts: 24883
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Posted: Sat Aug 27, 2011 5:35 am Post subject: Re: 4430 hydraulics |
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The screen lays crossways behind hyd filter and in frt of rear axle housing. Hyd oil requires draining. Plug a 3000 psi gauge in breakaway coupler and move control lever. |
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buickanddeere Tractor Guru
Joined: 31 May 2003 Posts: 31821 Location: in front of computer
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Posted: Sat Aug 27, 2011 5:48 am Post subject: Re: 4430 hydraulics |
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Those It manuals contain just enough info to be dangerous. IT manuals are best used as a dust and grease cover to protect other books.Or to hold door and windows open.
Call 1-800-522-7448 and order the real JD manual
What kind of loader and valve? How is the loader plumbed into the tractor?
Any other hydraulic problems? |
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Eastfork Regular
Joined: 29 May 2011 Posts: 103
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Posted: Sat Aug 27, 2011 5:59 am Post subject: Re: 4430 hydraulics |
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It's an old ezee on loader. The lift is plumbed in one remote and bucket plumbed in the other. The bucket doesn't chatter nearly as much as the lift. The steering seems unaffected during the chatter and the tractor does not have 3 point |
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buickanddeere Tractor Guru
Joined: 31 May 2003 Posts: 31821 Location: in front of computer
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Posted: Sat Aug 27, 2011 6:10 am Post subject: Re: 4430 hydraulics |
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That does eliminate open and closed center control valve problems.
Any chance the scv's have been tinkered to the single hose/one way cylinder operating mode? |
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Eastfork Regular
Joined: 29 May 2011 Posts: 103
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Posted: Sat Aug 27, 2011 6:19 am Post subject: Re: 4430 hydraulics |
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I've had the tractor for 4 years and don't know much of the history. It seems fine with everything else like the haybine and disk. It is very fussy on oil level. It gets worse when oil drops to add mark. Also no difference with flow control in high or low. |
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Eastfork Regular
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Posted: Sat Aug 27, 2011 6:21 am Post subject: Re: 4430 hydraulics |
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It will chatter with other equipment when oil is below add mark |
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Kerry50 Long Time User
Joined: 14 Jun 2011 Posts: 633 Location: St. James, MO
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Posted: Sat Aug 27, 2011 7:11 am Post subject: Re: 4430 hydraulics |
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we have a 4430 with a jd loader that does the same thing. I checked the hyd pressure last year and adjusted the set screw all the way in to get minimum hyd pressure. My thot, the hydraulic pump will have to be replaced one of these days. Check your hyd pressure. and adjust according. Agrees with the above poster, those IT manuals just give you enough info to get you into real trouble. |
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buickanddeere Tractor Guru
Joined: 31 May 2003 Posts: 31821 Location: in front of computer
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Posted: Sat Aug 27, 2011 10:36 am Post subject: Re: 4430 hydraulics |
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Make certain the trans oil screen is clean.
Mother Deere sells an "up time" oil pump for the transmission of those 4430 and other tractors.
With time and wear, while there is nothing really "broken". However the trans pump is getting worn and more oil is seeping past worn/hardened seals. Thus a front pump that is starving for supply oil.
Sensitivity to oil level is a strong clue here.
I wasn't talking about the rabbit-turtle flow control. There is another adjustment for single vs. double acting hydraulic cylinders.
If the scv's are set for single acting. The already straining trans pump will have even more demand placed upon it. |
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Tx Jim Tractor Guru
Joined: 14 Feb 1999 Posts: 24883
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Posted: Sat Aug 27, 2011 11:20 am Post subject: Re: 4430 hydraulics |
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b&d
IIRC if the valve is set for single acting cylinder then SCV will not operate a double acting cylinder. |
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Eastfork Regular
Joined: 29 May 2011 Posts: 103
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Posted: Sat Aug 27, 2011 11:42 am Post subject: Re: 4430 hydraulics |
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Can u tell me a little more about that uptime kit. My ops book shows that bypass screw for single vs double but how do I check/clean the screen? |
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