PUMP AS-WATER 4331684 - Caterpillar

Illustration 1 g02160475
Illustration 2 g02160476
Slide locking tab (2) into the unlocked position. Disconnect harness assembly (1) from differential pressure sensor (3).
Remove bolts (4). Remove differential pressure sensor (3) from manifold (5).
Remove O-ring seal (6) and O-ring seal (7).
Illustration 3 g02160477
Slide locking tab (10) into the unlocked position. Disconnect harness assembly (11) from absolute pressure sensor (9).
Use a deep socket to remove absolute pressure sensor (9) from sensor manifold (5).
Remove O-ring seal (8) (not shown) from pressure sensor (9).
Illustration 4 g02160478
Illustration 5 g02160482
If necessary, follow Step 7.a through Step 7.g in order to remove manifold (5) and tube assemblies from the NOx reduction system (NRS) manifold.
Remove plastic breather tube from the crankcase breather cannister and the valve mechanism