Author	[Modern View]
cooop 08-19-2012 10:13:26 74.206.44.182 Report to Moderator	I acquired a 4430 with known hydraulic issues. I have been trying to move it but the loader is on the ground and it will not raise. I have tried the hydraulic lever in all different positions. The clutch slips and the two speed in the quad range doesn't work. Every now and then if I press the brakes I can get something from them. The PTO engages every time I turn it on but it probably would slip if it was under a load. It doesn't make a difference if the PTO is on or off. It also doesn't steer at all. If it helps, this tractor has a JD loader on it that has 1 hose connecting to the back couplers and the return hose connects to a round protruding object below the deck on the starter side of the tractor. Does anyone have any suggestions as to what is wrong with this 4430? Thanks to all in advance. [Reply]   [No Email]
Tim S 08-19-2012 13:30:57 75.60.206.128 Report to Moderator	Re: 4430 hydraulics in reply to cooop, 08-19-2012 10:13:26   Remove the top link mounting, then remove the plug hiding under it, reach in with pliers and "try" to pull the trans pump drive shaft out, my guess is you won"t be able to,,me believing this 4430 to be a Quad range, I thinking the pump has failed twisting the shaft off....   [Reply]  [No Email]
cooop 08-19-2012 15:52:15 74.206.44.182 Report to Moderator	Re: 4430 hydraulics in reply to Tim S, 08-19-2012 13:30:57   If the shaft is twisted off, would it have a pto that engages or brakes that sometimes work?   [Reply]  [No Email]
Tim S 08-19-2012 16:30:00 75.60.206.128 Report to Moderator	Re: 4430 hydraulics in reply to cooop, 08-19-2012 15:52:15   Possibly from clutch drag, it may not be twisted clear off but the shaft could be rounded letting the pump work just a bit,,but it sounds like trans pump failure, it is a Quad range correct..   [Reply]  [No Email]
cooop 08-19-2012 16:44:35 74.206.44.182 Report to Moderator	Re: 4430 hydraulics in reply to Tim S, 08-19-2012 16:30:00   Yes, it is a quad range.   [Reply]  [No Email]
Tx Jim 08-19-2012 11:09:29 67.142.163.22 Report to Moderator	Re: 4430 hydraulics in reply to bob15, 08-19-2012 10:13:26   First thing is to do is change hyd filter(AR75603),clean sump screen & check traction & pto clutch pressures on LH side to the rear of battery. Loader will not operate unless scv lever is moved the correct direction and then ind lever activated and frt pump is putting out 1700+ psi. You could also remove center link bracket and plug,then pull trans hex drive shaft out and check for wear in trans pump drive area.   [Reply]  [No Email]
Tx Jim 08-19-2012 11:00:25 67.142.163.22 Report to Moderator	Re: 4430 hydraulics in reply to cooop, 08-19-2012 10:13:26   Quoting Removed, click Modern View to see b&d A quad-range trans has one rear hyd filter and a powershift has two rear hyd filters.   [Reply]  [No Email]
buickanddeere 08-19-2012 15:31:03 209.240.120.143 Report to Moderator	Re: 4430 hydraulics in reply to Tx Jim, 08-19-2012 11:00:25   Just making certain what we were dealing with. It would do no harm either to install a T in the high pressure line and avoid the SCV connection. A complete flush of the hydraulic oil from tractor and loader would not hurt either. Who knows what all has been dumped and accumulated in there over the past 37+ years. The trans oil pump will be at least "tired" .   [Reply]  [No Email]
buickanddeere 08-19-2012 10:47:38 209.240.120.143 Report to Moderator	Re: 4430 hydraulics in reply to cooop, 08-19-2012 10:13:26   Loader oil is probably returning to a ported filter cover part # T31170. INCREASED OIL FILTRATION KIT (QUAD-RANGE AND SYNCRO-RANGE) pn AR85271 TRANSMISSION OIL PUMP (INCREASED CAPACITY) (QUAD-RANGE AND SYNCRO-RANGE) pn RE228724 Transmission Up-Time Kit PN RE213657 R50825 trans oil pump drive SHAFT 1-800-522-7448 to obtain an Operator's Manual to locate and identify item and areas that require service. Is there one or two oil filters on the transmission?   [Reply]  [No Email]
cooop 08-19-2012 10:58:50 74.206.44.182 Report to Moderator	Re: 4430 hydraulics in reply to buickanddeere, 08-19-2012 10:47:38   You are right. The oil is returning to a ported filter cover. This post was edited by cooop at 11:02:23 08/19/12.   [Reply]  [No Email]