LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1977 >> Forward Control 7.4L Eng VIN Y, Automatic Trans, Trans Mfr CD 475/M40 >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternators >> Bench Testing >> Rectifier (Diode) Tests >> Negative Rectifiers
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Negative Rectifiers

Connect test lead clip to rectifier end housing. Touch exposed connection of each negative rectifier with test probe. Test specifications and results will be approximately the same as for positive case rectifiers, except meter will read on opposite side of scale.