TM 5-4320-300-145-5. ALTERNATOR ASSEMBLY (CONT)Location/ItemActionRemarksCAUTIONEquipment damage may occur if acid core solder is used to solder diodes to stator leads. Useonly rosin core solder (ASTM Specification B 284-79).NOTETo test, it will be necessary to unsolder the leads from stems of positive and negative diodeassemblies for individual testing. When you solder and unsolder leads from the diodes, use longnose pliers to grasp diode stem between the diode and stator lead to be removed. This will givebetter heat dissipation and protect diode from damage. Make note of diode to stator leadconnections to facilitate reassembly. If one diode is bad, replace entire diode assembly. Thepositive diode assembly has red printing on the diode body; the negative diode assembly hasblack printing.14. StatorDisconnect stator winding terminals from diodewindingsassemblies, and test stator windings for leakageand continuity. Set multimeter to read resistanceon the X1 scale. Connect multimeter leads toeach pair of the following test points.Point A to point BPoint A to point CPoint B to point CPoint A to point DPoint B to point DPoint C to point DThe resistance should be infinite in all of theabove tests. If the resistance reading is notinfinite in any test, high leakage or a shortexists between stator windings, or between a5-12
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