XQC1600 Power Module Caterpillar

General Maintenance Information

Usage:

Note: Read the warnings and read the instructions that are contained in the Safety Section of this manual. These warnings and instructions must be understood before you perform any operation or any maintenance procedures.

Rotating electric machines are complex structures that are exposed to the following forms of stress:

mechanical
electrical
thermal
environmental

These stresses may be of varying magnitudes. The insulation systems are susceptible to damage that is caused by the stresses that are listed above. Exposure to these stresses may shorten the effective life of the insulation system. Therefore, the service life of an electric machine will largely depend on the serviceability of the insulation systems. An inspection program and a testing procedure are recommended. An inspection program and a testing procedure will ensure that the equipment is maintained in satisfactory condition. Proper maintenance will increase field reliability.

A regular maintenance and inspection program can provide an evaluation of the present condition of the equipment. A regular maintenance program and a regular inspection program can also reveal future problems. The frequency of this maintenance program will depend on the following factors:

application
environmental conditions
level of experience of the operator
philosophy of the operator

A regular maintenance program is strongly recommended. This program would involve the following steps:

periodic disassembly
knowledgeable visual examination of the equipment
the application of electrical tests

Never perform a test over the rated potential. These tests can damage insulation that is contaminated or insulation that is in marginal condition. For more information, refer to "I.E.E.E. Standard 432-1992" or consult a Caterpillar dealer.

Note: Inspect the door seals at least once per year to verify proper seal to the unit. Replace seal materials as required.

Space Heaters

The SR4B generator can operate in high humidity conditions without problems. However, problems can occur when the generator is idle and the surrounding air is warmer than the generator. Moisture can form on the windings that will result in poor performance from the windings. Moisture can also result in damage to the windings. Whenever the generator is not active, ensure that the space heaters are in operation.

Whenever the generator is operating, ensure that the space heaters are disconnected.

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