Home |Gallery |Forum |Ads Today's Tractors
Today's TractorsThe Modern Tractor Resource Page

 
Featured Photo

Click to View

The Market
Tractor Parts
Tractor Manuals
Classified Ads
Tractor Shop

Features
Discussion Forum
Archives
Tractor Photos
Implement Photos
Combine Photos
Information
Model Profiles
Safety Issues
Manufacturers
Reading Room

Miscellaneous
Contact Us
Antique Tractors
Classic Trucks
Kountry Life
YT Forums
Discount Parts

[Home]
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

This is the modern view of the Today's Tractors Forum. Just login with your YT Userid and password to post. If you have trouble logging in, contact us by email to support at ytmag.com, or through the Reader Form, and we will get you going right away.

Click here to return to Yesterday's Tractors Forum Index

JD 4230 Hydraulic hose chatter/slow movement

Goto page 1, 2  Next
 
Post new topic    Today's Tractors Forum Index -> John Deere
View previous topic :: View next topic  
Author Message
74/4230
Guest






Report to Moderator

PostPosted: Thu Oct 22, 2009 5:50 pm    Post subject: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

Hi there,
I have a JD 4230 and currently it's hooked up to a bail picker/mover.
The hydraulic lines from the picker are connected to the 2 rear remotes. I'm getting a lot of chatter in the lines and very slow reaction/flow in the hydraulic cyl. and motors on the picker.The tractor has a new hydraulic pump and filters and is full of fresh oil.
Just wondering what could be causing this. Are the flow controls not working? It's set to "rabbit".
I know it's not the implement. When I hook it to another tractor, it's fine.
 
Back to top
D L Zim
New User


Joined: 15 Jul 2009
Posts: 4


Report to Moderator

PostPosted: Thu Oct 22, 2009 6:03 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

what trans do you have? If you have quad range,dos it chatter in hi and lo?Ore just one. If it chatters in just one that piston seal is leaking and has to be spit to fix.
 
Back to top
View user's profile
tim s
Tractor Guru


Joined: 01 Nov 2008
Posts: 6888
Location: Somerset Ohio

Report to Moderator

PostPosted: Thu Oct 22, 2009 7:00 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

My first thought is a weak or bad transmission pump...if it's not a power shift, pull the hex pump drive shaft out from under the top link, and see if the pump has been chewing at it..if it is the pump gear bushing is worn and has taken out the pump.
 
Back to top
View user's profile
Roger in Iowa
Tractor Expert


Joined: 12 Oct 2007
Posts: 1584
Location: Ottumwa, Iowa

Report to Moderator

PostPosted: Thu Oct 22, 2009 7:14 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

I think motors should run off the left SCV to have the return oil go back to the front pump and not the trans sump. Check the OM.
 
Back to top
View user's profile
buickanddeere
Tractor Guru


Joined: 31 May 2003
Posts: 25483
Location: in front of computer

Report to Moderator

PostPosted: Thu Oct 22, 2009 8:33 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

Problem is the hydraulic motor return lines are not returning to a ported trans filter cover.The front pump is cavitating.
Are these hydraulic motors used in one or both directions? If operated in both directions. The motors will require their own separate control valves returning to a ported filter cover. And supplied from a dedicated high pressure tap/Power Beyond upstream of the scv valves.
SCV valves were mostly intended for raising and lowering cultivators, a low flow/low volume load.
A Power Beyond circuit is required for the 30-50gpm the front pump can flow depending on which pump was optioned.
In the mean time.Try the flow control vales throttled way back so the trans pump can keep up with the front pump. Operation of the motors will actually be faster.
Odds are there was absolutely nothing wrong with the fir$t front pump. It was just being starved for oil on the inlet side. Who ever suggested to you to change the pump wasn't your friend that day.
 
Back to top
View user's profile
74/4230
New User


Joined: 23 Oct 2009
Posts: 3


Report to Moderator

PostPosted: Fri Oct 23, 2009 5:17 am    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

Wow, thanks for all the replies!

buickanddeere: The pump replacement was a seperate thing, it was leaking.
The hydraulic motors on the picker are used in both directions. There is one motor on each side of the picker which operates a pusher to move bales and there is a hydraulic cylinder on each side to move the arms of the picker which load the bales. In other words, one SCV on the tractor performs 4 functions via an electronic distribution valve on the picker. The attachment to choose which function to perform is on the hydraulic lever in the tractor,4 buttons.
Currently, they"re hooked up to the right side SCV. Tractor is a Quad Range.

Roger in Iowa- Thanks, I"ll try the left SCV"s.

When hooked up to an IHC 5088, there"s no chatter and everything moves quick and smooth. The lines from the picker are rather small in diameter, maybe there"s too much flow?
 
Back to top
View user's profile
thurlow
Tractor Guru


Joined: 13 Nov 2001
Posts: 5698


Report to Moderator

PostPosted: Fri Oct 23, 2009 6:45 am    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

Not familiar with your implement and I realize that motors are different from external valve boxes, but.............could the fact that the JD is closed center and the IH is open (I assume) have anything to do with the problem?
 
Back to top
View user's profile
4430jd
Regular


Joined: 05 Mar 2009
Posts: 82


Report to Moderator

PostPosted: Fri Oct 23, 2009 2:08 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

A John Deere is closed center hydraulics and I do not believe a International is does that have anything to do with it? It would depend on how your picker is set up and how the valves are set on the picker.
 
Back to top
View user's profile
buickanddeere
Tractor Guru


Joined: 31 May 2003
Posts: 25483
Location: in front of computer

Report to Moderator

PostPosted: Fri Oct 23, 2009 3:17 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

4430JD asked an important question about open center and closed center hydraulics.
Simply put, connecting a closed center tractor such as the 4230 to an open center control valve. It just isn't going to work.
With the control valve on the baler.It should be closed center and fed from a Power Beyond circuit. And returned via a ported filter cover.
So said, the baler will never work decent when mixing closed and open center systems.
 
Back to top
View user's profile
Jim Dunn
Regular


Joined: 11 Apr 2001
Posts: 41


Report to Moderator

PostPosted: Sat Oct 24, 2009 4:16 am    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

I used to have a 4230 and lost a lot of oil one time due to a hose failure. Decided to cut cost and check out some cheaper hyd. oil with same mil. specs. Thought that was supposed to be the same oil. Turned out not true. The 4230 rejected the oil by not working good with the hydraulics. Even the power steering wouldn"t work with less that 1700 rpm. Flushed and filled with JD hyd. oil and never had any more problems. Just wondering if your using JD oil?
 
Back to top
View user's profile
74/4230
New User


Joined: 23 Oct 2009
Posts: 3


Report to Moderator

PostPosted: Sat Oct 24, 2009 4:54 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

buickanddeere- Not too sure about that one, I see lots of 4430"s and 4440"s running these bale movers.Can"t see why JD wouldn"t work with them Here"s a pic of what they look like:

Jim Dunn- I"m running Shell Donax TD. I wouldn"t think it to be a bargain oil.

 
Back to top
View user's profile
buickanddeere
Tractor Guru


Joined: 31 May 2003
Posts: 25483
Location: in front of computer

Report to Moderator

PostPosted: Sat Oct 24, 2009 5:02 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

Only thing that gets changed is the hydraulic control valve assembly between the open and closed units. The valve body may look identical from the outside.
It's even possible the existing valve is swappable just by adding,removing or turning a plug or spool piece.
Some systems could even limp along unknown to the operator with a open valve on a closed tractor. If the tractor used a ported filter cover return. At least the front pump would not cavitate. System pressure could be a bit lower but "workable" with the steering priority valve diverting enough flow to maintain steering.
In brief a mixing a closed with an open system is pounding a square peg into a round hole.
 
Back to top
View user's profile
44 Diesel Tech
Regular


Joined: 18 Mar 2008
Posts: 348
Location: Ont Canada

Report to Moderator

PostPosted: Sat Oct 24, 2009 5:11 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

The R 55079 cover bolted to the underside of rockshaft housing could be broken causing return oil to go to sump instead of going to front pump. I have seen this many times.
 
Back to top
View user's profile
jimvw
Regular


Joined: 13 Dec 2004
Posts: 113


Report to Moderator

PostPosted: Sat Oct 24, 2009 5:15 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

Your 4230 may be equipped with a manual bypass valve. Make sure it is closed otherwise the front pump will be starved for oil and will cavitate. The manual bypass valve is the rear valve in the oil filter relief valve housing. If you are returning your oil thru a ported filter cover then it would probably be ok irregardless weather the manual bypass was open or not. However check it and close it if it is open. It should only be opened when using single acting cylinders.
 
Back to top
View user's profile
430WLPG
Long Time User


Joined: 03 Aug 2004
Posts: 1071


Report to Moderator

PostPosted: Sat Oct 24, 2009 7:17 pm    Post subject: Re: JD 4230 Hydraulic hose chatter/slow movement Reply to specific post Reply with quote

5088 IHC is a CLOSED CENTER hyd. system, with Parker style piston pump
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Today's Tractors Forum Index -> John Deere All times are GMT - 8 Hours
Goto page 1, 2  Next
Page 1 of 2

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group
Advertisement
Repair/Service manuals available for Allis, Ford, Farmall, John Deere and most other makes and models of tractors. If you are expecting to make repairs to your tractor, check our large online catalog of manuals. We probably have just what you need! Current Special - FREE book offer.    [Click here to visit this Sponsor]

Home | Manuals | Parts

Reproduction of any part of this website, including design and
content, without written permission is strictly prohibited.
Copyright © 1997-2013 TodaysTractors.com

Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others.