Caterpillar — Generator Load - Check
Maintenance
From a Caterpillar owner's manual covering: C3.3, C3.3 Rental Generator Set, C4.4, C4.4 Rental Generator Set, D4D1-Up, GLE1-Up, N3X1-UP, N4R1-Up, N4X1-Up, X3B1-UP, XYC1-Up, XYD1-Up. Check it applies to your exact model before use.
Applies to: Caterpillar C3.3, Caterpillar C4.4
Before you start
- Personal injury or death can result from high voltage
- Make sure testing equipment is designed for and correctly operated for high voltage and current tests
Procedure
- Monitor the power factor and the generator loading during normal operation.
- For three-phase generators, ensure the total current in any one phase does not exceed the nameplate rating.
- Each phase should carry the same load.
- Power factor is calculated by dividing kW by kVA.
Full service-parts list: Caterpillar C3.3 →, Caterpillar C4.4 →
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.