2006/09/04 Caterpillar

Off-Highway Truck/Tractor:

773F (S/N: EED1-UP)

777F (S/N: JRP1-UP)

Quarry Truck:

775F (S/N: DLS1-UP)

Track-Type Tractor:

D10T (S/N: RJG1-UP)

Wheel Dozer:

844H (S/N: BTW1-UP)

Wheel Loader:

990H (S/N: BWX1-UP)

Description of Change: A new torque specification is now used on C27 and C32 engines. The new torque specification is for the cap nuts on the fuel injector. The new torque specification will better secure the wiring harness to the fuel injector.

Adaptable To: The old torque specification for the cap nuts was 1.7 ± 0.25 N·m (15 ± 2 lb in). The new torque specification is 2.5 ± 0.25 N·m (22 ± 2 lb in).