SEAL-LIP TYPE 1114919 - Caterpillar

Standard Usage
Caterpillar recommends replacement of the generator bearing at the major overhaul unless the generator is installed in any of the following conditions:
High temperature environment (refer to the temperature chart in this Operation and Maintenance Manual, "Generator Bearing - Lubricate" article.
Condensing humidity
Coastal environment
Chemical environment
Abrasive environmentIf any of these conditions exist, consult your Caterpillar dealer for the appropriate checks:
alignment
environmental
environmental
exercising the generator
temperature
vibrationStandby Usage
The generator bearings are shielded and greased for the life of the bearing. Some purging of the grease occurs normally with the bearings. Carefully adhere to the recommendations for the following conditions: temperature, vibration, contamination and alignment. Over time, the bearing grease may deteriorate. This deterioration may cause the grease to loose lubricating properties. Caterpillar recommends the replacement of the bearing after 10years of service in a standby application in normal conditions. If the bearing is installed in the following conditions, Caterpillar recommends replacement of the bearing in 5 years.
High temperature environment (Refer to the temperature chart in this Operation and Maintenance Manual, "Generator Bearing - Lubricate" article.
Condensing humidity
Coastal environment
Chemical environment
Abrasive environment