TM-5-2330-325-13-P

SEMITRAILER, MEDIUM HEAVY EQUIPMENT TRANSPORTER (MHET), 40 TON, M870A3

TECHNICAL MANUAL; OPERATOR AND FIELD MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

JUNE 2014

TM-5-2330-325-13-P - Page 141 of 648

FIELD MAINTENANCE

ONE OR MORE LIGHTS INOPERABLE

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's

(WP 0144, Table 1, Item 16)

References

WP 0035

WP 0044

References (cont.)

WP 0045

WP 0046

WP 0047

WP 0048

WP 0050

WP 0096

TROUBLESHOOTING PROCEDURE

SYMPTOM

ONE OR MORE LIGHTS INOPERABLE

MALFUNCTION

BURNED OUT OR DEFECTIVE LEDS/LIGHTS

CORRECTIVE ACTION

Replace burned out or defective LEDs/lights (WP 0044), (WP 0045), or (WP 0046).

MALFUNCTION

VOLTAGE IS LOW

CORRECTIVE ACTION

1.

Test receptacle for proper voltage at receptacle. If voltage is low, clean receptacle and wires

(WP 0035).

2.

If there is no power at receptacle, unplug wires at receptacle and test for proper voltage

(WP 0047) and (WP 0050). If proper voltage exists, replace receptacle (WP 0047) and

(WP 0048).

3.

If there is no power at wires, test voltage at next check point. See schematic (WP 0096).

4.

If proper voltage exists, repair or replace wiring (WP 0050).

5.

If there is no power at check point, continue to next check point. Continue testing unit reaching

24-volt receptacle. Repair or replace wire as required for wires between test points (WP 0050).

END OF WORK PACKAGE

TM 5-2330-325-13&P

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