TM10-3930-660-20 8-48. BOOM ELECTRICAL CABLE - TEST/REPLACE/REPAIR (Cont'd) b. c. If possible, connect ohmmeter leads to ends of wire. Disconnect suspected wire and an adjacent wire. Tape these two wire terminals together. Then connect ohmmeter leads to the opposite ends of these two wires. An infinite resistance reading indicates a broken wire. If an individual wire in a wiring harness is broken, it is not necessary to discard entire wiring harness. Refer to REPAIR topic for procedure. 1. 2. 3. 4. START ENGINE. APPROXIMATELY STOP  ENGINE. wire replacement RAISE FORKS ONE FOOT OFF GROUND. DISCONNECT NEGATIVE BATTERY CABLE, PARA.  8-44. LOOSEN FOUR SCREWS (1) AND SEPARATE COVER (2) FROM BOOM ELECTRICAL BOX ASSEMBLY (3). TAG AND DISCONNECT FOUR ELECTRICAL LEADS (5) AT TERMINAL STRIP (7) OF CIRCUIT BOARD (4). a. b. Tag four leads (5) at terminal strip (7) on circuit board (4). Loosen four screws (8) on terminal strip (7) and remove leads (5). 8-145