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 278 of 1452

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

0149-2

DRAFT

0149

TFFT04479

Step 4.

Check if CHECK PUMP ENGINE alarm is sounding and check if CHECK PUMP

ENGINE light is illuminated.

If CHECK PUMP ENGINE alarm is sounding and CHECK PUMP ENGINE

light is illuminated, notify Supervisor.

TFFT04480

NOTE

Check engine alarm will sound and CHECK PUMP ENGINE light will illuminate if voltage

falls to 23.8 VDC and below.

Voltage must stay below 24 VDC for more than 2 seconds to

activate alarm.

Step 5.

Check if water pump engine gauge panel displays system voltage or water pump

engine gauge panel displays voltage below 23.8 VDC without CHECK PUMP ENGINE

alarm sounding and CHECK PUMP ENGINE light illuminating (WP 0004).

If water pump panel engine gauge panel does not display system voltage or

voltage below 23.8 VDC without CHECK PUMP ENGINE alarm sounding

and CHECK PUMP ENGINE light illuminating, replace water pump engine

gauge panel (WP 0340).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION