SEAL-AIR 3843581 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A (1)     -     Krytox LS23     -    
Krytox GPL 205 -    
( 1 ) Either Krytox product can be used.Start By:
Remove the atmospheric pressure sensor.
Remove the inlet air temperature sensor.
Refer to Operation and Maintenance Manual, "Coolant - Change" for the proper draining and filling procedures.
Illustration 1 g03068564
Remove hoses (1) and (2) .
Illustration 2 g03068566
Disconnect hose assembly (3) and remove the adapter.
Disconnect hoses (5) and (6) .
Attach a suitable lifting device to aftercooler (4). The weight of aftercooler (4) is approximately 50 kg (110 lb).
Remove bolts (7) and remove aftercooler (4) .
Illustration 3 g03068567
Remove O-ring seal (8) .
Illustration 4 g03068569
Remove O-ring seal (12) .
Remove bolts (9) and (10). Remove plate support (11) .
Illustration 5 g03368181
Note: Discard O-ring seals (15), (17), (20), and (22) .
Remove bolts (13), outlet bonnet (14), O-ring seal (15), spacer (16), and O-ring seal (17) .
Remove bolts (18), inlet bonnet (19), O-ring seal (20), spacer (21), and O-ring seal (22) .
Illustration 6 g03368184
Note: Discard O-ring seals (23) and (25) .
Remove bolts (27), bonnet (26), O-ring seals (25), aftercooler core assemblies (24), and O-ring seals (23) .Installation Procedure
Install aftercooler (4) in the reverse order of removal.
Install new O-ring seals (15), (17), (20), (22), (23), and (25) .
Secure O-ring seals (12) and (8) with Tooling (A) .
Lubricate bolts (7) with clean engine oil.