PISTON 0875435 - Caterpillar

Installation Procedure
Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training.Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, "General Hazard Information and High Pressure Fuel Lines" for safety information. Refer to System Operation, Testing and Adjusting, "Cleanliness of Fuel System Components" for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.
Ensure that the wiring harness assembly is correctly routed and the cable straps are not over tightened. Over tightening of the cable straps will damage the wiring harness convoluting.
Illustration 1 g02937680
Illustration 2 g02937736
If necessary, install studs (9) into front cover (10). Tighten the studs to a torque of 18 N m (159 lb in)
Install new O-ring seal (11) onto fuel injection pump (6).
Carefully install fuel injection pump (6) into front housing (10). Ensure that the bore in front housing (10) is not damaged as the fuel injection pump is installed.
Install nuts (8) onto studs (9). Tighten the nuts to a torque of 25 N m (221 lb in).
Illustration 3 g02709437
Remove the appropriate caps in order to install a new fuel injection line (7). Install new fuel injection line (7) to the fuel injection pump and to the fuel manifold. Refer to Disassembly and Assembly, "Fuel Injection Lines - Install" for the correct procedure.
Remove the appropriate plugs and caps and connect plastic tube assembly (2), plastic tube assembly (3), plastic tube assembly (4) plastic tube assembly (5) to fuel injection pump (6).
Connect harness assembly (1) to the solenoid on fuel injection pump (6).
Install the fuel injection pump gear. Refer to Disassembly and Assembly, "Fuel Injection Pump Gear - Install" for the correct procedure.
Replace the filters for primary fuel system. Refer to Operation and Maintenance Manual, "Fuel System Primary (Water Separator) Element - Replace" for the correct procedure.
Replace the filters for secondary fuel system. Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.
Turn the fuel supply to the ON position.
Turn the battery disconnect switch to the ON position.
Remove the air from the fuel system. Refer to Operation and Maintenance Manual, "Fuel System - Prime" for the correct procedure.