TB 9-2320-279-13&P-4
0033
TEST 15 - Are 22 to 28 vdc measured on red wire at heavy-duty winch remote control unit left switch, COM
terminal?
WARNING
Remove all jewelry such as rings, ID tags, bracelets, etc. prior to working on or around
vehicle. Jewelry and tools can catch on equipment, contact positive electrical circuits, and
cause a direct short, severe burns, or electrical shock. Failure to comply may result in injury
or death to personnel.
1. Connect heavy-duty winch remote control unit wiring harness internal four terminal connector. (WP 0047)
2. Connect remote control cable to remote control connector. (WP 0015)
3. Connect remote control cable to heavy-duty winch remote control unit connector. (WP 0015)
NOTE
Heavy-duty winch control valve IN and OUT solenoid connectors are disconnected to
prevent unexpected operation of heavy-duty winch.
4. If connected, disconnect heavy-duty winch control valve harness IN solenoid connector. (WP 0049)
5. If connected, disconnect heavy-duty winch control valve harness OUT solenoid connector. (WP 0049)
WARNING
Excessive noise levels are present any time the heavy-duty winch, crane, or retrieval system
is operating. Wear single hearing protection (earplugs or equivalent) while working around
equipment when it is running. Failure to comply may result in injury or death to personnel.
Seek medical aid should you suspect a hearing problem.
6. Start engine (refer to TM 9-2320-279-10).
7. Set PTO ENGAGE switch to ON position. (WP 0015)
8. Connect positive (+) probe of multimeter to red wire at heavy-duty winch remote control unit left switch, COM
terminal. Refer to schematics.
0033-22
