Caterpillar — Alternator - 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
- A battery with a low charge will freeze more easily than a battery with a full charge
Procedure
- Inspect the alternator for loose connections and proper battery charging.
- Inspect the ammeter (if equipped) during engine operation.
- Check the alternator and the battery charger for proper operation.
- Make repairs as required. Refer to the Service Manual.
Specs & values
- If batteries are properly charged the ammeter reading should be very near zero
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.