TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(3) MASTER WARNING LIGHT FAILS TO OPERATE
WHEN ENGINE OVERHEATS. All other lights
operate.
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
• Digital multimeter (DMM) (Item 13, Appendix 1)
• MASTER switch set to OFF (refer to TM
• General mechanic’s tool kit (Item 24,
9-2350-287-10).
(Appendix 1)
NOTE
• Instead of using multi meter
for voltage
check, STE/lCE
troubleshooting,
INDIVIDUAL
BATTERY VOLTAGE TEST-TEST
89 maybe performed.
• Instead of using multi meter
for continuity check, STE/lCE
troubleshooting, TEST 91 may
be performed.
A. 1. Remove lens and light bulb from driver’s
portable instrument paneI MASTER warning
light indicator, and remove light bulb from
steering shaft MASTER warning light assem-
bly.
2. Turn MASTER switch ON (refer to TM 9-
2350-287-1O).
3. Place red lead of multimeter in driver’s
portable instrument panel MASTER warning
light indicator socket and ground black lead.
4. Check for 24 ± 3.
5. Perform steps 3 and 4 on steering shaft
warning light assembly.
6. Turn MASTER switch OFF (refer to TM 9-
2350-287-10.
Is voltage indicated?
Replace lamp from socket that
indicated voltage (para 7-6 or 7-35).
Verify problem is solved.
Continued on next page
2-144
