SEAL 4423570 - Caterpillar

1. Remove six nuts (1) and three bolts (2). Use a screwdriver and pry rear seal assembly (3) out and off the six studs.2. Remove o-ring seal (4) behind the rear seal assembly. The following steps are for the installation of the rear seal assembly. 3. Leave shipping sleeve in place to install the crankshaft rear seal. Clean crankshaft seal surface. Position o-ring seal (4) on the back of rear seal assembly (3), as illustrated.4. Position the rear seal assembly over the crankshaft and studs then push into place dislodging the shipping sleeve. Install six washers and nuts (1). Apply 5P3413 Thread Sealant to the threads of three bolts (2).5. Install three bolts (2) at the bottom of the rear seal assembly.End By:a. install flywheel