Komatsu PC200-8M0 Shop Manual page 168

SEN06120-00
Shuttle valve in pressure compensation valve
When holding pressure at port (A) becomes higher than LS pressure in spring chamber (B)
1. Main pump
2. Valve
3. Shuttle valve
4. Piston
5. Pressure compensation valve
Operation
q Shuttle valve (3) is pressed to the right side by the pressure of port (A). As a result, port (A) is discon-
nected from port (C).
Holding pressure at port (A) is transmitted to the spring chamber (B) to push piston (4) to the left so that
q
piston (4) is not separated from valve (2).
26
10-402
402 Hydraulic system, Part 2
Functions and operation by valve
PC200, 200LC, 220, 220LC-8M0