NUT 3404515 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 473-2944 Capping Kit 1
B - De-ionized Water 1
Ensure that all adjustments and repairs that are carried out to the Diesel Emission Fluid (DEF) system are performed by authorized personnel that have the correct training.Before beginning ANY work on the DEF system, refer to Operation and Maintenance Manual, "General Hazard" for safety information.
Care must be taken to ensure that Diesel Emission Fluid (DEF) for the system 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.
Ensure that the purge process for the DEF system is completed before turning the battery disconnect switch to the OFF position. Refer to the Operation and Maintenance Manual, "Battery Disconnect Switch" for further information.
Illustration 1 g03732131
Typical examples
Ensure that the area around Manifold (DEF Heater) (7), Diesel Exhaust Fluid (DEF) pump (4), Diesel Exhaust Fluid injector (14) and Diesel Exhaust Fluid (DEF) line (3) and Diesel Exhaust Fluid (DEF) line (6) is clean and free dirt and debris. If necessary, use Tooling (B) and a suitable tool to clean the area around the DEF component.
Refer to the Original Equipment Manufacture (OEM) for the correct location of the Manifold (DEF Heater) (7), Diesel Exhaust Fluid (DEF) pump (4), and Diesel Exhaust Fluid injector (14). Refer to the OEM for the correct routing of the diesel exhaust fluid lines.
Ensure that the area around manifold DEF heater (7), DEF pump (4), and DEF injector (14) are clean and free dirt and debris. If necessary, clean the area around the manifold DEF heater, DEF pump, and DEF injector.
Disconnect the Original Equipment Manufacture (OEM) harness assemblies from harness assembly (1), harness assembly (8), and harness assembly (9) for the Diesel Exhaust Fluid (DEF) lines.
Make temporary marks on cable straps for installation purposes. Cut cable straps (2) and cable straps (5). Ensure that all cable straps are removed.
Disconnect diesel exhaust fluid line (6) and diesel exhaust fluid line (3) from manifold DEF heater (7).
Use Tooling (A) to cap manifold DEF heater (7). Use Tooling (A) to plug diesel exhaust fluid line (6) and diesel exhaust fluid line (3).
Disconnect diesel exhaust fluid line (10) and diesel exhaust fluid line (11) from DEF pump (4).
Use Tooling (A) to cap DEF pump (4). Use Tooling (A) to plug diesel exhaust fluid line (10) and diesel exhaust fluid line (11).
Disconnect diesel exhaust fluid line (12) and diesel exhaust fluid line (13) from DEF injector (14).
Use Tooling (A) to cap DEF injector (14). Use Tooling (A) to plug diesel exhaust fluid line (12) and diesel exhaust fluid line (14). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
B - De-ionized Water 1
Ensure that all diesel exhaust fluid components are free from wear or damage. Replace any diesel exhaust fluid component that is worn or damaged.
Illustration 2 g03732131
Typical examples
Remove caps manifold DEF