ENGINE AR-PRIMARY 3328660 - Caterpillar

Remove Fuel Injection Line Adapters
Start By:a. remove valve coversb. remove fuel injection lines FLUID SPILLAGE CONTAINMENTCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "TOOLS AND SHOP PRODUCT GUIDE, NENG2500", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates.
Do not let the tops of the fuel nozzles turn when the fuel lines are loosened. The nozzles will be damaged if the top of the nozzles turn in the body.
1. Use Tool (A) and a 7/8 5P-0328 Crow Foot Wrench ( in) to loosen the fuel injection line nut at the nozzle end. 2. Use Tool (B) to loosen the nut at the fuel injection line adapter end. Remove inner fuel injection lines (1). Install plugs in the fuel injection nozzles. 3. Remove the nut that holds the adapters to the cylinder head assembly. Remove fuel injection line adapters (2).Install Fuel Injection Line Adapters
1. Check the condition of O-ring seal (1) on fuel injection line adapter (2) for damage. Make a replacement if necessary.2. Lubricate O-ring seal (1) with clean engine oil. Install fuel injection line adapter (2). Tighten the retaining nut to a torque of 13.6 2.7 N m (10.00 2.00 lb ft). 3. Check the condition of the O-ring seal on inner fuel line (3) for damage, and make a replacement if necessary. Install inner fuel line (3).
Do not let the tops of the fuel nozzles turn when the fuel lines are tightened. The nozzles will be damaged if the top of the nozzles turn in the body.
4. Use Tooling (A) to tighten the inner fuel line nuts to a torque of 40 7 N m (30 5 lb ft).End By:a. install fuel injection linesb. install valve covers