TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download

Page 273 of 858

TM 9-2350-277-20-1 HIGH BEAM INDICATOR LIGHT DOESN’T WORK 0050 00 INITIAL SETUP: M a i n t e n a n c e L e v e l Unit T o o l s a n d S p e c i a l T o o l s General Mechanic’s Tool Kit (WP 0926 00, Item 65) Multimeter (WP 0926 00, Item 30) Jumper Wire P e r s o n n e l R e q u i r e d Unit Mechanic Helper (H) R e f e r e n c e s See your -10 E q u i p m e n t C o n d i t i o n Engine stopped (see your -10) Carrier blocked (see your -10) T 1. Check service and IR headlights (see your -10). 2. Do all lights work properly? YES NO TN 1. Go to Service and/or IR Headlights Don’t Work (WP 0031 00, WP 0032 00). 2. Verify no faults found. Y 1. Remove headlight high beam indicator light cover lens (1) and gasket (2). 2. Remove high beam indicator bulb (3) and gasket (4). 3. Measure resistance between light assembly (5) center contact and ground. 4. Does multimeter read 0 ohms? YES NO YN 1. Replace light assembly (WP 0287 00). 2. Verify no faults found. 0050 00-1