TB-9-2320-279-13-P-4

TRUCK, TRACTOR, LIGHT EQUIPMENT TRANSPORTER (LET), 8X8, M983A2 LET

TECHNICAL BULLETIN; OPERATOR AND FIELD LEVEL

APRIL 2008

TB-9-2320-279-13-P-4 - Page 355 of 744

COM TERMINAL

RED WIRE

REMOTE CONTROLLER

ASSEMBL

Y

HEAV

Y

-DUT

Y

WINCH

REMOTE CONTROL

UNIT

LEFT SWITCH

RIGHT SWITCH

Figure 15.

9. Connect negative (-) probe of multimeter to known good ground.

10. Multimeter should display a reading between 22 and 28 vdc. Note reading.

11. If voltage reading is not between 22 and 28 vdc, set PTO ENGAGE switch to OFF position. (WP 0015)

12. If voltage reading is not between 22 and 28 vdc, shut OFF engine (refer to TM 9-2320-279-10).

CONDITION/INDICATION

Are 22 to 28 vdc measured on red wire at heavy-duty winch remote control unit left switch, COM terminal?

DECISION

No - Repair red wire or replace heavy-duty winch remote control unit. (WP 0047)Test 20 - Does winch operate

with remote control?

Yes - Test 16 - Are 22 to 28 vdc measured on black wire at heavy-duty winch remote control unit left switch, NO

terminal when heavy-duty winch remote control lever is operated to the IN and OUT position?

TEST 16 - Are 22 to 28 vdc measured on black wire at heavy-duty winch remote control unit left switch, NO

terminal when heavy-duty winch remote control lever is operated to the IN and OUT position?

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

TB 9-2320-279-13&P-4

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