SWITCH AS 1557582 - Caterpillar

Engine:
3406
3408
3412
3456
3456 (S/N: 3LW1-UP)
C15 (S/N: BEM1-UP)
C16 (S/N: BFM1-UP)
Description of Change: A new front crankshaft seal and a new rear crankshaft seal are now in production. Production for both seals started 9January 2003. These new seals are for the front and rear sealing journals of the crankshaft. The new seals incorporate a one piece seal/wear sleeve combination. The new crankshaft seals have a redesigned wear sleeve that has a flanged face. This new flanged face rotates with the crankshaft in order to keep dirt away from the sealing lip. This will provide better control of contaminants.The removal procedure for the new seals has been changed, from the former seal design because of the new flanged face on the wear sleeve. The seal face is blocked or hidden by the new flanged face on the wear sleeve. Refer to the section "Removal Procedure" and table 2 for the required removal tools. The assembly procedure for the new seals has not changed from the former seal design. Refer to section "Installation Procedure" and table 3 for the required tools for assembly.Adaptable To: The new crankshaft front