TM-5-4210-249-13-P-2

TACTICAL FIRE FIGHTING TRUCK (TFF) MODEL M1142

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT REPAIR PARTS AND SPECIAL TOOLS); PART 2 OF 4

TM-5-4210-249-13-P-2 - Page 694 of 1452

TM 5-4210-249-13&P-2

0176-6

DRAFT

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TFFT04303

Step 8.

Disconnect pump house wire harness passenger side work light connector.

Turn

battery disconnect switch to ON position (WP 0007).

Put pump operator’s panel

PANEL LIGHTS switch to on position (WP 0004).

With a test lead set, check for 22 to

28 VDC between pump house wire harness wire 1661 (black) at work light connector,

terminal A and a known good ground.

If 22 to 24 VDC are not present, repair wire 1661 in pump house wire

harness if repairable (TM 9-2320-325-14&P), or replace pump house wire

harness (WP 0458).

Step 9.

Put pump operator’s panel PANEL LIGHTS switch to off position (WP 0004).

Turn

battery disconnect switch to OFF position (WP 0007).

With a test lead set, check for

continuity across pump house wire harness wire 1640 (black) from work light connector,

terminal B to a known good ground.

a.

If there is continuity, replace passenger side pump house work light

lamp (WP 0335).

b.

If there is no continuity, repair wire 1640 in pump house wire harness if

repairable (TM 9-2320-325-14&P), or replace pump house wire

harness (WP 0458).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION