Komatsu — Komatsu PC450LC-6 Hydraulic Excavator Operation & Maintenance Manual (EN)

24. SERVICE PROCEDURE Install the two fuel pump support bracket capscrews to the cylinder block bracket. Tighten the four fuel pump mounting capscrews. Torque Value: 47 N•m [35 ft-lb] Tighten the two support bracket to cylinder block capscrews. Torque Value: 47 N•m [35 ft-lb] Install the AFC air tube and fuel tubing: Fuel drain from the T-block connection (1) Gear pump cooling drain (2) Gear pump suction line (3) Fuel supply to the injectors (4) AFC air supply tube (5) Tachometer cable (if used) (6) Install the electric wire to the fuel shutoff valve. The wire connection nut must be clean and tight. Torque Value: 3 N•m [25 in-lb] Install the linkage to the throttle lever.

Install the battery cables. PC450-ENG 3-86