Komatsu PC600LC-7 Manual page 69

STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
SERVO VALVE
1. Servo valve assembly (No. 1 front)
P1 : Main pump pressure IN port
PE : TVC valve output pressure front, rear
interconnection port
PCO : CO selector pilot port
PD : Jet sensor downstream pressure IN port
PT : Jet sensor upstream pressure IN port
PAC : Servo actuator port
PDR : Servo valve drain OUT port
PPO : Servo basic pressure IN port
PECN : CO+NC valve output pressure output port
PC600, 600LC-7
HYDRAULIC PUMP (PISTON PUMP)
1. CO+NC valve
2. Servo valve
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