TM-9-2350-256-20-1

RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 2

NOVEMBER 2005

TM-9-2350-256-20-1 - Page 539 of 948

TM 9-2350-256-20-1

0085 00

Troubleshooting Procedure

Rigger’s Lights and Front Signal Light

Symptom

Rigger’s light or front signal light malfunctioning.

Malfunction

One or both rigger’s service lamp fails to operate.

Do steps 1 thru 10.

Front signal light and/or indicator light fails to operate, but indicator lamp operates. Do steps 11 thru 19.

CORRECTIVE ACTION

WARNING

Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts a metal surface a direct

short may result in instant heating of tools, damage to equipment, and injury or death to personnel.

1.

Loosen four screws (1) and remove cover (2). Remove bulb (3). Place red lead of multimeter in socket

and black lead to ground. Turn MASTER switch On, press STOP LIGHT key and ENTER key on

main light switch and set rigger’s B.O SELECTOR to SERVICE position, and check for voltage. Turn

MASTER and B.O. SELECTOR switches OFF. If voltage is present, replace lamp (see WP 0176 00).

If voltage is not present, go to step 2.

0085 00-3