SEAL-O-RING 5M2057 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 185-3630 Strap Wrench As 1
B 370-8376 Capping Kit 1
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.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
The engine can start automatically. Ensure that the power supply is isolated before any service or repairs is performed.
Turn the fuel supply to the OFF position.
Illustration 1 g03710010
Using Tooling (A) to remove fuel filters (12). Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.
Loosen bolt (18) from the clip. Remove the clip from tube assembly (5).
Remove bolt (17) from the clip. Remove the clip from tube assembly (5).
Remove bolts (6) from the clips. Remove the clips from tube assembly (5).
Disconnect tube assembly (5) from secondary fuel filter base (10) and fuel priming pump (8). Use Tooling (B) cap connections on the secondary fuel filter base and the fuel priming pump.
Use Tooling (B) to cap tube assembly (5).
Remove O-ring seal (4) (not shown) and O-ring seal (7) (not shown) from the connections on secondary fuel filter base (10) and fuel priming pump (8).
Disconnect the tube nut on tube assembly (16) on secondary fuel filter base (10).
Cut cable strap (2). Disconnect harness assembly (1) from oil pressure sensor (3).
Disconnect harness assembly (14) from oil pressure sensor (15).
Remove bolts (9) from secondary fuel filter base (10). Remove the secondary fuel filter base from bracket (11).
Use Tooling (B) to cap tube assembly (16).
Remove O-ring seal (13) (not shown). Use Tooling (B) to cap connection on secondary fuel filter base (10).
Illustration 2 g03710013
If necessary, follow Step 2.i through Step 16.g in order to disassemble the secondary fuel filter head (7).
Remove outlet fuel pressure sensor (19). Refer to Disassembly and Assembly, "Fuel Pressure Sensor (Secondary Duplex Outlet Fuel Pressure Sensor) - Remove and Install" for the correct procedure.
Remove check valve (20). Refer to Disassembly and Assembly, "Check Valve - Remove and Install" for the correct procedure.
Remove inlet fuel pressure sensor (25). Refer to Disassembly and Assembly, "Fuel Pressure Sensor (Secondary Duplex Inlet Fuel Pressure Sensor) - Remove and Install" for the correct procedure.
Remove check valve (26). Refer to Disassembly and Assembly, "Check Valve - Remove and Install" for the correct