F-mode operation
F-mode is used for lifting heavy material or finishing touch.
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.
- 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.
Picture text:
To Next Page
Loading...
