Komatsu ecot3 PC300LC-8 Shop Manual page 960

SEN02639-02
6. Disconnect 8 hoses and 8 tubes on the control
valve.
q (9): TSW port hose (Swing motor S port)
q (10): T1 port hose (connected to the tank)
q (11): From the top:
A1 port tube
A1 port tube
A2 port hose
A3 port tube
A4 port hose
A5 port hose
A6 port tube
q (12): From the top: B1 port tube (arm Hi
bottom side)
A1 port tube
A2 port hose
B3 port tube
B4 port hose
B5 port hose
B6 port tube
7. Disconnect the 6 PPC hoses at right.
q (13): Bucket dump
(14): LH forward
(15): Boom
(16): Right swing
(17): RH forward
(18): Arm digging
8
(boom Hi bottom side)
(bucket bottom side),
(swivel joint A port)
(boom bottom side),
(swing motor MB port)
(swivel joint C port),
(arm head side)
(bucket head side)
(swivel joint B port)
(boom head side)
(swing motor MA port)
(swivel joint D port)
(arm bottom side)
(Hose band: Black)
(Hose band: Red)
(Hose band: Brown)
(Hose band: Green)
(Hose band: Blue)
50 Disassembly and assembly
8. Disconnect 2 hoses and 8 tubes on the control
valve.
q (19): Bucket dump
q (20): PST port hose (Hose band: Brown)
9. Disconnect drain hoses (21).
10. Disconnect 7 left side PPC hoses and 5 control
valve hoses.
q (22): PLS2 port hose
q (23): PLS1 port hose
(24): PLS2 port hose
q
q (25): From the top: Bucket digging
LH reverse
Boom RAISE
Swing LS separator valve
BP5 port hose
Left swing
RH reverse
Arm dump
q (26): PX2 port hose
(Hose band: Yellow -Blue)
(Hose band: Red)
(Hose band: Blue)
(Hose band: White)
(Hose band: Green)
(to solenoid)
(Hose band: Red)
(Hose band: Blue)
(Hose band: Yellow)
PC300, 350-8