Komatsu ecot3 PC300LC-8 Shop Manual page 964

SEN02639-02
6. Disconnect the pump wiring connectors at the
following two locations.
q (8): V19 (LS-EPC solenoid valve)
q (9): V11 (PC-EPC solenoid valve)
7. Disconnect 8 hoses and a tube.
q (12): Drain port hose
q (13): Front load pressure input port hose
(14): Front load pressure input port hose
q
q (15): EPC source pressure port hose
(16): Rear pressure input port hose
q
q (17): Front pressure input port hose
q (18): Rear pump delivery port hose
(19): Front pump delivery port hose
q
(20): Pump suction port tube
q
8. Remove muffler drain tube (21).
12
(Color band: Red)
(Color band: Yellow)
(Color band: Yellow)
50 Disassembly and assembly
9. Disconnect wiring clamp (22) at two locations.
10. Remove muffler clamp (23) and two U-bolts
(24) to remove muffler (25).
11. Remove muffler bracket (26).
12. Lift and remove hydraulic pump assembly (27).
4
Hydraulic pump assembly: 220 kg
[*1]
PC300, 350-8