ENGINE AR-PRIMARY 5216420 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Distilled Water -
De-ionized Water
Diesel Exhaust Fluid (DEF) Start By:
Remove the nitrogen oxide sensor.
Remove the exhaust elbow.
Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.
Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
Illustration 1 g03364405
Disconnect harness assembly (1) and hose assemblies (2).
Illustration 2 g03364426
Attach a suitable lifting device to clean emissions module (3). The weight of clean emissions module (3) is approximately 227 kg (500 lb).
Illustration 3 g03364860
Remove bolts (4) and the mount assemblies from clean emission module (3). Remove clean emission module (3).
Illustration 4 g03364430
Remove bolts (5) and bolts (6).
Remove mount plate assembly (7).Installation Procedure
Install clean emissions module (3) in the reverse order of the removal.
Apply Tooling (A) to the O-ring seal for the diesel exhaust fluid line (not shown).