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2350 hyd problems

X

XL cid A

Member
I've got a 2350 ( cab ) that after running 10-15 minutes the
hyd get real slow while idling and only have about 700-800 psi idling but
can run it up 1200-1300 rpm and it works fine and has 2300-
2400 psi steady. When you first start it everything is good
idling until it warms up alittle. It won't get any worse idling (
around 700-800 ) all day long or will the pressure drop when
you have the rpms up. I put a new hyd pump on thinking it
may be wore out but does the same thing. Cleaned the intake
filter changed hyd filter. Any idea where to start or look?
 
I am thinking you are measuring your pressure at the SCV's?
It sounds like a classic high pressure leak to sump and the most likely place for this to happen is at the rockshaft valve. With the tractor running remove the hydraulic oil fill cap and shine a light in toward the front and right of the rockshaft housing. An oil stream or spray/fog indicates a leak.
The rockshaft will come off with the factory cab in place but it is tight and tricky to get back on.
Deere has a kit that has all the pieces you need for the repair, part #AL57974.
What did you do with the pump you took off? There is probably not a thing wrong with it.
 
I've still got it thought I might need it for something else or sell it one. Do you have to loosen the cab and raise alittle to do that ? Only problem would be getting the depth control stuff lined back up
 
Yes I remove the rear mounts and linkage to raise the back of the cab. Yes the follower for the draft control is the hardest part of the reassembly. I have used a small inspection camera to verify the proper positioning. All hyd. functions will be affected by this leak.
 
What are you talking about leaking? The lift control valve itself or or something else I need to check out? Also is there anything else you can think of I might check first or why the lift is off? Thanks for the help by the way!
 

Your tractor has an internal leak to sump which could be in the low &/or high pressure circuit. To locate internal leak requires some good diagnostics.
 
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