Case 465 series 3 aux hydraulic issue

[ddunbar1983]

I have a 2008 Case 465 Series 3 that is having issues with the aux hydraulics. The machine runs great and moves great. The arms go up and down easily and the bucket tilts and lifts without issue. The problem arises when i hook up other attachments that require aux hydraulics. The motor bogs down and tries to die anytime i move the aux pedal. I have replaced the fluids and all filters and the problem still exists. Any ideas what may be going on? Thanks in advance for any help.

 

[Tazza]

What sort of attachment are you trying to run? When operating the aux hydraulics, it should only bog the motor down when the fluid is being dead headed against a cylinder or something lthat can't move.
It's possible a fitting has failed, causing the fluid to not be able to pass?