TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
15. LHS DOES NOT OPERATE PROPERLY IN AUTO MODE (CAB ONLY)
(continued).
VISUAL INSPECTION
(1) Start engine.
(2) Turn light control switch to SPOT
LIGHT position.
NOTE
LED should be on when hook arm is
fully extended, off when hook arm is
stowed.
(3) Fully extend hook arm and shut off
engine.
(4) Turn engine start switch to ON
position and observe status of LED.
(5) Turn engine start switch and light
control switch to OFF position.
HOOK ARM UP
PROXIMITY
SWITCH LED
4-313
