AC 653 Pedal Steer Clutch Pressure?

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   Hello all,
I got some great info a couple of years ago on rebuilding the clutch pack in my 653 Dozer.  Plates were shot and fingers were all out of adjustment. Rebuilt the clutch, adjusted fingers, adjusted throwout bearing placement to spec.  While operating, dozer is still not releasing clutch on that side when pedal is depressed.  Works ok at startup, but once its warm it wont release.  Im wondering if the pedal steering valve or the cylinder has an internal leak and cant maintain proper pressure when depressed.  Anyone have any idea how to test this or what the proper pressure would be? Shop manual doesnt cover much of the pedal steer system.

Thanks!

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nhoskins Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 10 Nov 2012 Location: Vermont Points: 13	Post Options Post Reply Quote nhoskins Report Post Thanks(0) Quote Reply Topic: AC 653 Pedal Steer Clutch Pressure? Posted: 28 Jun 2018 at 8:20am
	Hello all, I got some great info a couple of years ago on rebuilding the clutch pack in my 653 Dozer. Plates were shot and fingers were all out of adjustment. Rebuilt the clutch, adjusted fingers, adjusted throwout bearing placement to spec. While operating, dozer is still not releasing clutch on that side when pedal is depressed. Works ok at startup, but once its warm it wont release. Im wondering if the pedal steering valve or the cylinder has an internal leak and cant maintain proper pressure when depressed. Anyone have any idea how to test this or what the proper pressure would be? Shop manual doesnt cover much of the pedal steer system. Thanks!

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