INSERT-VALVE SEAT 1336997 - Caterpillar

The Closed Crankcase Ventilation (CCV) system contains three separator assemblies on the right side of the engine. Cylinders 9, 13, and 17 each contains a coalescing filter.The CCV system requires the replacement of the coalescing filter. The service interval of the CCV will be affected by the following conditions:
Engine load
Concentration of soot
Condition of the engineThe CCV system has sufficient capacity to meet the maintenance interval schedule under normal operating conditions. Engine crankcase pressure will indicate the need for replacement if the CCV filter elements become restrictive prior to the scheduled maintenance interval.Replacing the Fumes Disposal Filter
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
Note: Shut down the engine prior to performing fumes disposal filter maintenance.
Failure to perform this maintenance at less than 1500 hours will not void the emissions-related warranty.
Illustration 1 g06045188
(1) Filtered air to the air inlet system
(2) Pressurized intake air
(3) Unfiltered crankcase air to separator assembly
(4) Oil drain to crankcase
Illustration 2 g06094914
(5) Separator cover
(6) Service lid
(7) O-ring
(8) Coalescing filterNote: Detailed instructions are included in the service kit.
Disconnect hoses (1) and (2). Air pressure in hose (2) will be relieved after engine shutdown. Remove 4 nuts securing separator cover (5).
Remove separator cover (5).
Loosen 4 captive fasteners securing the service lid (6).
Remove service lid (6).
Remove and replace o-ring (7) each time the filter is replaced.
Remove and replace coalescing filter (8).
Reverse the above procedure to install the new filter.Note: Refer to "Torque Specifications"SENR3130 for information on torque values.