RADIATOR & AFTERCOOLER GP 3799901 - Caterpillar

Front Crankshaft Seal
Illustration 1 g01355051Note: The front crankshaft seal and the crankshaft seal excluder are serviced separately. (1) Install the front crankshaft seal. Ensure that the front face of the crankshaft seal is 2.5 mm (0.10 inch) from the front housing (3). (2) Before installing the crankshaft seal excluder onto the crankshaft, lubricate the inside diameter of the crankshaft seal excluder sparingly with liquid soap.
Illustration 2 g01133077Note: The shipping sleeve (5) must not be removed prior to the installation of the front crankshaft seal. If the shipping sleeve has been removed prior to installation of the front crankshaft seal, the front crankshaft seal should not be used.Install the front crankshaft seal (1) in the front housing. Remove the shipping sleeve (5). Install the crankshaft pulley (4).Rear Crankshaft Seal
Illustration 3 g01355064 (6) Install the rear crankshaft seal into the carrier housing or the flywheel housing (7). After installation of the rear crankshaft seal, ensure that the rear face of the seal is 15.4 0.5 mm (0.61 0.02 inch) from the rear face of the engine block (8).
Illustration 4 g01526794Use the correct type of seal for your application.Note: The wear sleeve (9) must not be removed from the rear crankshaft seal at any time. If the wear sleeve is removed from the rear crankshaft seal, the rear crankshaft seal should not be used.