Looking for pressure relief setting for Ware 400 Backhoe

[Ed Miller]

I've got a Ware 400 trencher on my OC-46.  Just blew up my second cylinder (dipper) and after a $1000 replacement bill decided its time to work on the pressure relief.  Anyone know the setting.   I have a manual but the schematic that they say has the settings is missing.  Thanks for any information.

Ed

[TDLMOMOWERS]

I would recommend setting the relief valve down to the end and gradually increasing the relief setting until it will raise the bucket but not over tight. Make sure there is no dirt blocking the relief valve or the ports. Do you know what the pump is rated at? Check the relief valve spring, if it is broken, someone may have screwed the relief valve way in to get enough pressure to work the machine.

[hotratz]

You should be able to get a manual from Zimmermans for that hoe. Most of these systems are set around 1300 psi but might be different for your application.