VOLTAGE TEST - TM-9-2320-366-20-20569

TM 9-2320-366-20-2

WARNING

Remove rings, bracelets, watches, necklaces,

and any other jewelry before working around

vehicle. Jewelry can catch on equipment and

cause injury or short across electrical circuit

and cause severe burns or electrical shock.

VOLTAGE TEST

(1) Set multimeter to volts dc.

(2) Connect positive (+) probe of multimeter to

TB-7A.

(3) Connect negative (-) probe of multimeter to

ground.

(4) Position master power switch to on

(TM 9-2320-366-10-1) and note reading on

multimeter.

(5) If 24 vdc is not present, repair wire 7A (para

2-45) or replace wrecker control panel wiring

harness (para 7-83).

(6) If 24 vdc is present, perform Electrical System

Troubleshooting (e140. Main Winch Left or

Right Speed Function Does Not Operate From

Wrecker Control Panel or e141. Main Winch

Left or Right Free Spool Function Does Not

Operate From Wrecker Control Panel).

(7) Position master power switch to off

(TM 9-2320-366-10-1).

(8) Install wrecker control panel top cover (para

17-20).

2-1445