STEP AS 4328705 - Caterpillar

start by:a) remove vibration damper and pulley1. Make two holes (180° apart) in the metal surface of the seal with a punch. 2. Remove the crankshaft front seal (1) from the timing gear cover with tooling (A).Install Crankshaft Front Seal (Earlier)
1. Make sure the sealing surface of the crankshaft is clean and free of dirt and foreign material.2. Put clean SAE 30 oil on the rubber lip of the seal and the end of the crankshaft. 3. Put crankshaft seal (1) on the crankshaft with the lip of the seal toward the rear of the engine.4. Install tooling (A) over the crankshaft and seal as shown. 5. Tighten bolt (3) of tooling (A) until plate (2) of tooling (A) makes contact with the front of the crankshaft.6. Remove tooling (A). Check the distance from the front face of the seal to the front face of the engine support bushing. The distance must be .54 in. (13.7 mm).end by:a) install vibration damper and pulley