VALVE GP-CONTROL 8J5961 - Caterpillar

Remove & Install Fuel Injection Lines
Earlier Engine
Later 3408 Engine
Later 3412 Engine1. Disconnect nuts (3) from the valve cover bases.2. Use Tool (A) to disconnect nuts (4) from the fuel injection pump housing.3. Remove the bolts that hold brackets (1) to the engine.4. Remove the fuel injection lines as a unit. Put plugs and caps over all openings.5. If necessary, remove clamps (2) and the individual fuel lines. The following steps are for installing the fuel injection lines. For Specifications for the fuel line, refer to "Specification", SENR5516, "Fuel Injection Lines".6. If necessary, install the individual fuel lines and clamps (2). If it is necessary to remove or loosen any of the fuel line clamps, torque the screws to 2.26 N m (20 lb ft).7. Remove the plugs and caps. Install the fuel injection lines as a unit.8. Hand tighten nuts (4) to the fuel injection pump housing. Hand tighten nuts (3) to the valve cover bases.9. Install the bolts that hold brackets (1) to the engine.10. Use Tool (A) to tighten fuel line nuts (4) to a torque of 41 7 N m (30 5 lb ft).11. Tighten nuts (3) to a torque of 41 7 N m (30 5 lb ft).12. Remove (bleed) the air from the fuel system.