ENGINE AR-PRIMARY 4570604 - Caterpillar

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.Dispose of all fluids according to local regulations and mandates.
Turn the fuel supply to the OFF position.
Drain the secondary filter. Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.
Illustration 1 g02526916
Make temporary identification marks on plastic tube assemblies in order to show the correct position of the tube assemblies.
Place a suitable container below the fuel filter base in order to catch any fuel that might be spilled.
Disconnect plastic tube assembly (1), plastic tube assembly (2), and plastic tube assembly (5) from the fuel filter base.
Remove plastic tube assembly (1), plastic tube assembly (2), and plastic tube assembly (5) from clips (4).
Use Tooling (A) in order to plug the plastic tube assemblies with new plugs. Use Tooling (A) in order to cap the ports in the single secondary fuel filter with new caps.
Illustration 2 g02526918
Remove canister (8) from fuel filter base (3). Remove secondary filter (7). Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.
Remove bolts (6) from fuel filter base (3). Remove the fuel filter base from the mounting bracket. Note: Do not disassemble the fuel filter base.
Illustration 3 g02599177
If necessary, follow Step 1.f through Step 10.e in order to remove the bracket for secondary fuel filter.
Cut cable strap (9) and cable strap (11) from harness assembly (10).
Remove plastic tube assembly (2) from clips (15).
Remove plastic tube assembly (18) from clips (17).
Remove bolts (12), bolts (14) and bolt (16) from fuel filter bracket (13). Note: Note position of different length bolts.
Remove fuel filter bracket (13) from the NRS induction mixer assembly. 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 and the convoluting.
Illustration 4 g02599177
If necessary, follow Step 1.a through Step 1.f in order to install the bracket for secondary fuel filter.
Position fuel filter bracket (13) onto the NRS induction mixer assembly.
Install bolts (12), bolts (14) and bolt (16) to fuel filter bracket (13).
Tighten bolts (12), bolts (14) and bolt (16) to a torque of 22 N m (195 lb in).
Install plastic tube assembly (2) to clips (15).
Install plastic tube assembly (18) to clips (17).
Install new cable strap (9) and cable strap (11) to harness assembly (10). Note: Ensure