24. SERVICE PROCEDURE Inspect the rocker lever cover gasket for cuts or damage. If necessary, install a new gasket. Install the rocker lever cover. Install the 16 isolators and capscrews. Tighten the capscrews in the sequence shown. Torque Value: 15 N•m [130 in-lb] 24.10.2 Fuel Pump Remove STC Every 6,000 hours, clean and calibrate the fuel pump. Disconnect the battery cables. Clean the fuel pump and the surrounding area before removing it from the engine. Remove the wire to the fuel shutoff valve. Remove the linkage from the throttle lever. Remove the fuel tubing and air tube:
Fuel drain line 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) PC450-ENG 3-84