HOSE AS 2504531 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 388-1289 Capping Kit 1 Start By:
Remove the fuel injection pump gear. Refer to Disassembly and Assembly, "Fuel Injection Pump Gear - Remove" for the correct procedure.
Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fuel spray may cause a fire hazard. Failure to follow these inspection, maintenance and service instructions may cause personal injury or death.
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.
Turn the fuel supply to the OFF position.
Turn the battery disconnect switch to the OFF position.
Disconnect harness assembly (1) from the solenoid on fuel injection pump (6). Note: The harness assemblies should be positioned away from fuel injection pump in order to avoid an obstruction to the fuel injection pump.
Illustration 1 g02709437
Place a suitable container below the fuel injection pump in order to catch any fuel that might be spilled.
Clean the fuel injection pump and the area around the fuel injection pump. Ensure that the area is free from contamination before beginning disassembly.
Remove fuel injection line (7) that connects fuel injection pump (6) to the fuel manifold. Refer to Disassembly and Assembly, "Fuel Injection Lines - Remove" for the correct procedure. Note: Discard the fuel injection line.
Use Tooling (A) in order to cap the open port in the fuel injection pump immediately.
Use Tooling (A) in order to cap the open port in the fuel manifold immediately.
Make temporary identification marks on all plastic tube assemblies for installation purposes.
Disconnect plastic tube assembly (2), plastic tube assembly (3), plastic tube assembly (4) plastic tube assembly (5) from fuel injection pump (6).
Use Tooling (A) in order to cap the open ports in the fuel injection pump immediately.
Use Tooling (A) in order to plug the plastic tube assemblies immediately.
Illustration 2 g02709476
Fuel injection pump viewed from the rear
Remove nuts (8) from fuel injection pump (6). Note: The fuel injection pump should be supported by hand as the nuts are removed.
Carefully remove the fuel injection pump from front housing (10).
Remove O-ring (11) (not shown) from the fuel injection pump.
If necessary, remove studs (9) from front housing (10).