C1.5 and C2.2 Engines for Caterpillar Built Machines Caterpillar

Alternator Problem

Usage:

CB-22B 2B2

Probable Causes

Alternator drive belt
Charging circuit
Alternator

Recommended Actions

Alternator Drive Belt

Inspect the condition of the alternator drive belt. If the alternator drive belt is worn or damaged, check that the drive belt for the alternator and the pulley are correctly aligned. If the alignment is correct, replace the drive belt. Refer to Disassembly and Assembly, "Alternator Belt - Remove and Install".

Charging Circuit

Inspect the battery cables, wiring, and connections in the charging circuit. Clean all connections and tighten all connections. Replace any faulty parts.

Alternator

Verify that the alternator is operating correctly. Refer to Systems Operation, Testing, and Adjusting, "Alternator - Test". The alternator is not a serviceable item. The alternator must be replaced if the alternator is not operating correctly. Refer to Disassembly and Assembly, "Alternator - Remove" and Disassembly and Assembly , "Alternator - Install".

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