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 935 of 1188

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

0114-19

DRAFT

0114

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NOTE

•

Ensure system air pressure is at least 85 psi (586 kPa) during this procedure.

System air

pressure is required to activate valves.

•

Do not engage water pump engine during this procedure, except when performing

complete system checks.

Valve operations can be checked without water pump

operation.

•

Valve operations can be checked by observing valve shaft rotation.

Step 27.

While an assistant puts cab PUMP COOLER switch to on position (WP 0004), check if

pump cooler valve operates to open position.

If pump cooler valve does not operate to open position, go to Step 34.

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Step 28.

Put cab PUMP COOLER switch to off position (WP 0004).

Put pump operator’s panel

FOAM FLUSH switch to ON position (WP 0004).

Check if FOAM FLUSH indicator

illuminates.

If FOAM FLUSH indicator does not illuminate, go to Step 32.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION