Re: 350U Hydraulic Temp. Update

Posted by dick on June 06, 2004 at 14:36:33 from (4.228.36.99):

In Reply to: 350U Hydraulic Temp. Update posted by Ibby on June 05, 2004 at 04:00:48:

I'd agree with Jim E. that you are running too much supply pressure - which all gets turned into heat.

Things that MAY help (assuming I understand your piping correctly):

- Get rid of the spin-on filter, and go back to the original IH filter assembly inside the reservoir. The crud which is now clogging up your add-on filter is passing through your pump to get there - not a good thing given the close tolerances in the pump. The filter needs to be located before the pump. While you're in the reservoir, clean it thoroughly - the stuff which is clogging your present filter has to be coming from somewhere.

- The 3/8" and 1/2" hoses going from the reservoir to your valve(s?) sound awfully small for the capacity of the pump. The metal tubes to/from the pump are 1" and 3/4"; your hoses certainly shouldn't be any smaller, and probably should be larger because you're adding extra piping length to the original design.

- This flow divider of yours doesn't sound very good. The original IH design was self-adjusting (supplying anything from zero to full flow to the power steering) and had a force-balance design which minimized pressure drop across it to nearly nothing. This Prince thing of yours sounds like it could be your major problem.

- It sounds as though you must have an open-center gang of control valves?? Is there any safety valve in your system??

- Any good salvage dealer should be able to tell you about interchanging 300U/350U/300/350/400/450 hydraulic parts. I think most of what you really need is interchangable among them, excepting valve handles. You might try giving JP Tractor Salvage a call, they have had a good supply of this stuff in the past when I've needed it.

- Good luck, again.

Follow Ups:

• Re: Re: 350U Hydraulic Temp. Update Ibby 03:07:41 06/07/04 (0)

Post a Followup Name: E-Mail: Subject: Re: Re: 350U Hydraulic Temp. Update Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]