Operation and maintenance manual

Alternator QSB4.5 and QSB6.7
Page A-2 Section A - Adjustment, Repair, and Replacement
One Wire System, Typical Alternator (Delco-Remy™
One Wire System, Typical Alternator (Delco-Remy™)
3 GRD* Ground
4 R* Charge indicator, automatic lockout
system, tachometer**
5 BAT Battery
6 I* Indicator light
*Not all alternators have this feature.
**Provides voltage pulses at about one-half system voltage at a frequency of one-tenth of alternator rpm.
Three Wire System, Typical Alternator (Delco-Remy™)