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Volvo EC330B Excavator F Mode Operation Guide

Volvo EC330B Excavator F Mode Operation Guide

F-mode operation
F-mode is used for lifting heavy material or finishing touch.Volvo Truck Diagnostic Software PTT
Machine needs slow speed and large lifting force to satisfy these conditions.


When control switch is in F mode:
-VECU turns off power to travel speed solenoid. That means travel speed is fixed to low speed regardless of travel speed select switch position.Volvo Impact EPC
- VECU energize power boost solenoid to increase main relief set pressure by 10%.
- VECU turns on power to boom-arm conflux cut-off solenoid. Then boom & arm use only 1 pump flow for slow speed.Volvo prosis

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