24. SERVICE PROCEDURE Fuel System Bleeding Controlled venting is provided at the injection pump through the fuel drain manifold. Small amounts of air introduced by changing the fuel filters or fuel injection pump supply line will be vented automaticly, if the fuel filter is changed in accordance with the instructions. No manual bleeding of fuel lines is required. NOTE: Manual bleeding is required if: e The fuel filter is not filled prior to installation. ¢ Fuel injection pump is replaced. ¢ High pressure fuel line connections are loosened or fuel lines replaced. ¢ Initial engine start up or start up after an extended period of no engine operation.
e Vehicule fuel tank has been run until empty. Low Pressure Lines and Fuel Filter(s) Venting 1. 2. Open the bleed screw Operate the plunger on the lift pump until the fuel flowing from the fitting is free of air. Tighten the bleed screw. 3-62 9 Nem [80 in-Ib] PC160/180/200-6k-ENG Torque Value: