E Boom Elevating System E Contents E-1 Elevating System ............................. 1 1.
General..................................................... 1
E-2 Elevating Cylinder............................ 3 1.
Structure ................................................... 3
E-3 Counterbalance Valve (Elevating) .. 5 1.
Structure ................................................... 5
2.
Function.................................................... 7 2.1
When control valve is at the neutral position ................................................. 7
2.2
While actuator is being pushed up ............. 7
2.3
While actuator descends ............................ 7
i
