TB 9-2320-279-13&P-4
0024
8. Multimeter should display a reading between 22 and 28 vdc. Note reading.
9. If voltage reading is not between 22 and 28 vdc, set heavy-duty winch control station HIGH IDLE ON/OFF switch
to OFF position. (WP 0015)
10. If voltage reading is not between 22 and 28 vdc, set PTO ENGAGE switch to OFF position. (WP 0015)
11. 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 wire 1516A at high idle active relay R10, terminal 86?
DECISION
No - Test 27 - Can cab harness wire 1516A be repaired?
Yes - Test 28 - Are 22 to 28 vdc measured between wires 1516A and 145 at high idle active relay R10 connector,
terminals 86 and 85?
TEST 27 - Can cab harness wire 1516A be repaired?
WARNING
Ensure electrical power is off prior to working on all electrical connections. Failure to comply
may result in injury or death to personnel.
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.
WARNING
Circuit breakers No. 4, 5, 6, and 10 are always electrically live. Use care when working
around these circuit breakers. Failure to comply may result in injury or death to personnel.
NOTE
Wire is not repairable if damage cannot be visually located or if a prior repair has already
reduced length of wire. Wire is not repairable if after repair, wire is too short to reach its
connection point.
1. Inspect wire loop at connector MC66 between wire 1516 at terminal 1 and wire 1516A at terminal 4 for
repairability. Refer to schematics.
0024-35
