MF 35 Aux Hydraulics have pressure but no Flow

Lon Jackson

New User
I have a MF 35 whose hydraulic pressure tests fine at 2500 psi at top left auxiliary hydraulics port( control lever is full up in
constant pump position). But when hooked via orbitrol to two cylinders does not work properly (very very slow) operation.
Oritrol return goes to left side rearward port under seat. This same connection on my other MF 35 works just fine. I suspect low
flow as my problem. I have verified pressure and return lines are unrestricted other than they are 3/8" ID hoses. Are there
any hydraulic pump failure modes that still provide pressure bu not normal flow.
 
I removed left side PTO control plate, removed and cleaned hydraulic input filter, cleaned and replaced. System now works as expected, with some pulsation at lower RPM. At higher RPMs it smoothes out pretty well.
 

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.

Back
Top