Organizational Troubleshooting (continued)
TEST OR INSPECTION
Set DC POWER and MASTER switch off, and disconnect battery. Test
diode TB3-CR4 (malfunction 82).
b. If diode tests good, replace wire G26A20 between diode
DO NOT TOW INDICATOR DOES NOT LIGHT WHEN TOW BAR IS LOWERED AND CLUTCH LEVER IS
ENGAGED. See TM 55-1730-229-34 (paragraph 10-6, step 7).
Press to test the tow bar indicator.
a. If indicator does not light, go to step 3.
b. If indicator lights, continue with step 2.
Disconnect battery. On speed/direction control assembly (5, figure
for continuity between
terminals 6 and
10, and between
a. If no continuity, replace wire (G28A20 or G29A20), and
perform operational check.
b. If continuity checks good, mercury switch, or light switch
in speed/direction control assembly is defective. Notify
Check fuse F1 on lower electrical tray.
b. If fuse is good, do step 4.
Check wiring between terminal 6 on speed/direction control assembly
(see FO-8) and shunt R3 (see FO-1).
a. Replace any defective wiring, and perform operational