TM 9-4940-568-20
2-196
Table 2-21. Crane Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. BOOM LIGHT DOES NOT WORK IN THE BRT POSITION.
NOTE
Make sure the FRS 24 VDC electrical system is functioning properly.
Test 1.
Loosen four screws and clamps and open crane junction box cover and check for 24
VDC between terminal strip position 6 and a known good ground.
If no voltage is found, replace boom light switch. Refer to paragraph 5-4 in this
manual.