Komatsu ecot3 PC300LC-8 Shop Manual page 153

10 Structure, function and maintenance standard
Pressure compensation valve inner shuttle valve
1. If holding pressure at port (A) is larger than LS pressure in the springing chamber (B)
1. Hydraulic pump
2. Valve
3. Pressure compensation valve inner shuttle
valve
4. Piston
Function
q Shuttle valve (3) is pushed to the right by port
(A) pressure and cuts off interconnection
between ports (A) and (C).
q Holding pressure at port (A) is led to the spring
chamber (B) to push piston (4) to the left so
that piston (4) and valve (2) will not be sepa-
rated.
PC300, 350-8
SEN01994-01
27