PUMP & MTG GP-MAIN HYDRAULIC 3277263 - Caterpillar

Fuel Injection Lines
3304 Engine Shown1. Clean the area around each fuel line connection.2. Disconnect all fuel injection line nuts (1) at the fuel injection pump housing.
Do not let the tops of the fuel nozzles turn when the fuel lines are loosened. If the tops of the nozzles turn, the nozzles will be damaged.
3. Hold the tops of the fuel nozzles with a wrench, and disconnect all fuel injection line nuts (3) at the fuel nozzles as shown.4. Remove bolts (2) and the spacers that hold the fuel injection lines to the cylinder head. Remove the fuel injection lines.5. Put 5F3807 Caps and 2F2990 Plugs on the fuel injection lines, pumps, and nozzles to keep dirt and foreign material out of the fuel system.Install Fuel Injection Lines
3304 Engine Shown1. Remove the protection covers from the fuel line connections. Put the injection fuel lines in position, and install the nuts until they are finger tight.2. Install the spacers and bolts (2) that hold the fuel injection lines to the cylinder head.3. Use tool (A) and tighten nuts (1) to a torque of 40 7 N m (30 5 lb.ft.).
Do not let the tops of the fuel nozzles turn when the fuel lines are tightened. If the tops of the nozzles turn, the nozzles will be damaged.
4. Use tool (A), a wrench, and a torque wrench to tighten nuts (3). Tighten nuts (3) to a torque of 40 7 N m (30 5 lb.ft.).5. Remove (bleed) the air from the fuel lines. See Priming The Fuel System in the Maintenance Guide.