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dusgrant, Technician
Category: Construction and Road Equipment
Satisfied Customers: 104
Experience:  15 years of technician experience.
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Have a 331g 05 bobcat mini excavator runs but won't move or

Customer Question

Have a 331g 05 bobcat mini excavator runs but won't move or dig micro switch on lever is working hydrolic pump seems to be working is there a relay that could be bad thanks
Submitted: 1 year ago.
Category: Construction and Road Equipment
Expert:  dusgrant replied 1 year ago.

It could be a pilot pressure problem, and/or a system bypass solenoid valve problem.

Do any of the non pilot operated (non joystick) functions work such as the blade, or the boom offset?

The controller needs to activate the joystick pilot valve stem, and also the system bypass solenoid valve stem.

Are these two valve stems on the pilot manifold getting voltage?

Customer: replied 1 year ago.
Pump is working but no pressure nothing works
Expert:  dusgrant replied 1 year ago.
I would inspect the system bypass solenoid valve on the manifold. Check if it is getting voltage when the LH console is DOWN. Inspect the stem for debris holding it from closing, blown orings, etc.

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