Komatsu ecot3 PC300LC-8 Shop Manual page 961

50 Disassembly and assembly
11. Disconnect the 7 hoses and the wiring connec-
tors (2 locations).
q (27): PPS1 port hose
q (28): PPS2 port hose
q (29): PR port hose
q (30): PR port hose
(31): PP1 port hose
q
(32): PP2 port hose
q
q (33): T port hose
q (34): A51 (Front pump pressure sensor)
q (35): A52 (Rear pump pressure sensor)
12. Remove the 3 mounting bolts, and then lift and
remove control valve assembly (36).
4
Control valve assembly: 250 kg
PC300, 350-8
Installation
q
(Front pump)
(Rear pump)
(Solenoid)
q
(Pump)
(Front pump)
(Rear pump)
(Oil cooler)
q
Installation is done in the reverse order of
removal.
Refilling with oil (hydraulic tank)
Refill hydraulic oil through the oil filler port to
the specified level. Let the oil circulate in the
hydraulic system by starting the engine. Then
check the oil level again.
Air bleeding
Bleed the air from the circuit between the valve
and the hydraulic cylinder. For details, see
Testing and adjusting, "Bleeding air from vari-
ous parts".
SEN02639-02
9