TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
4.
MAIN FRAME WORKLIGHT DOES NOT OPERATE (continued).
VOLTAGE TEST
(1) Turn engine start switch to
ON position.
(2) Turn light control switch to
STOP LIGHT position.
(3) Set multimeter to voltage
position.
(4) Place positive (+) probe of
multimeter on wire no. 40 at
worklight switch.
(5) Place negative (-) probe of
multimeter on known good
ground, and check multimeter
for voltage reading.
(6) Turn engine start switch and
light control switch to OFF
position.
WORKLIGHT
SWITCH
TERMINALS
WORKLIGHT
SWITCH
WIRE NO. 40
TERMINALS
(SWITCH REMOVED FROM PANEL FOR CLARITY)
Change 1
4-83
