TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
10. NO TRANSIT LIGHT DOES NOT OPERATE PROPERLY (MODEL A ONLY)
(continued).
ACCESS
COVER
VISUAL INSPECTION
(1) Remove four screws and lockwashers and
access cover from heater compartment.
(2) Remove four screws and lockwashers from
cab control box.
UPPER
(3) Remove six screws from cab control box,
BODY
and separate upper body from base.
(4) Turn engine start switch to ON position.
(5) Turn light control switch to STOP LIGHT
position.
(6) Inspect whether LED D43 is on or off.
(7) Turn engine start switch and light control
switch to off position.
BASE
LED D43
4-177
Change 1
