SEAL-D-RING 1619834 - Caterpillar

Removal Procedure
Start By:
Remove the V-Belts. Refer to Disassembly and Assembly, "V-Belts - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00952102
Remove the setscrews (1). Remove the thrust block (2).
Remove the pulley (3) from the crankshaft (4). Installation Procedure
Illustration 2 g00952102
Clean the pulley (3) and clean the thrust block (2). Inspect the pulley (3) and the thrust block (2) for wear and for damage. If necessary, replace any damaged component. Inspect the area on the pulley (3) that is normally in contact with the crankshaft front seal. If there is excessive wear then a wear sleeve can be installed. Refer to this Disassembly and Assembly Manual, "Crankshaft Wear Sleeve (Front) - Remove and Crankshaft Wear Sleeve (Rear) - Install" for further details.
Position the pulley (3) onto the crankshaft (4).
Lubricate the threads and the shoulder of the setscrews (1). Position the thrust block and install the setscrews (1). Tighten the setscrews evenly to a final torque of 115 N m (85 lb ft). End By:
Install the V-Belts. Refer to Disassembly and Assembly, "V-Belts - Remove and Install".