Caterpillar — Generator - Inspect
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
- High voltage can cause severe injury or death
- If insulation resistance is below normal, a conductive path may be present
Procedure
- Isolate the generator for maintenance. Lock out and tag the equipment.
- Visually examine the generator and the windings for cracks, dirt and dust.
- Clean only when visual, electrical or thermal evidence of dirt is present.
- Use a vacuum cleaner to pick up dry dirt, dust and carbon.
- Use a small nonconductive tube or brush for unexposed surfaces.
- Compressed air (maximum 210 kPa/30 psi) may remove remaining dust.
- Do not use water or solvents such as trichloroethane, perchlorethylene or alkaline products.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Maximum air pressure 210 kPa (30 psi)
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.