TM-5-4210-249-13-P-1

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 1 OF 4

TM-5-4210-249-13-P-1 - Page 594 of 1188

TM 5-4210-249-13&P-1

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DRAFT

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TFFT04048

Step 24.

Put pump operator’s panel FOAM TANK switch to “B” position (WP 0004).

Check if

foam B indicator illuminates (WP 0004).

If foam B indicator illuminates, go to Step 26.

TFFT04049

Step 25.

Turn battery disconnect switch to OFF position (WP 0007).

Open pump operator’s

panel housing (WP 0325).

Turn battery disconnect switch to ON position (WP 0007).

Put pump operator’s panel FOAM SYSTEM switch to ON position (WP 0004).

Check

for 22 to 28 VDC between wire 2830 (red) at FOAM TANK switch, terminal to a known

good ground.

a.

If 22 to 28 VDC are present, replace pump operator’s panel FOAM

TANK switch (WP 0337).

b.

If 22 to 28 VDC are not present, repair wire 2830 in pump operator’s

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

pump operator’s panel wire harness (WP 0459).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION