Reply to "hydraulic problem on Cat 330b excavator"

chutzyMember

It is possible that these functions are fed from one pump. Trace the pressure line from each pump back to the control valve to see if all from one pump. Must check pressure at load sense port. Cat uses sensitive load sensing system. Could be a number of things causing slow reaction or low hydraulic power. I have dealt with problems similar to this in the past. Must check pump output pressure before going any further. Are all other hyd functions normal ie. left hand track movement.

2/1/095:31 PM

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