TM 9-2320-209-20-3-1 d. Polarization. FRAME 1 1. Using spanner wrench, unscrew and take off chassis wiring harness connector (1) from voltage regulator (2). CAUTION Make sure connector (1) Pin A on connector goes terminal. 2. Reconnect battery ground cable. GO TO FRAME 2 pins do not touch on the engine. directly to positive battery Refer to para 7-58. 7-11