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 495 of 1188

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

0083-1

DRAFT

0083

FIELD LEVEL MAINTENANCE

WATER PUMP ENGINE PRESSURE GOVERNOR CONTROL PANEL PSI

PRESET CONTROL DOES NOT OPERATE

INITIAL SETUP:

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

WATER PUMP ENGINE PRESSURE GOVERNOR CONTROL PANEL PSI PRESET CONTROL DOES NOT

OPERATE

NOTE

Preset value for the pump operator’s panel pressure governor control is set by

manufacturer to 125 psi (862 kPa).

Step 1.

Start water pump engine (WP 0022).

Operate pump operator’s panel pressure

governor in PSI mode (WP 0024).

Press PRESET switch (WP 0004).

Check if water

pump pressure increases to preset value.

If water pump pressure does not increase to preset value, go to Step 4.

NOTE

Preset value for the pump operator’s panel pressure governor control is set by

manufacturer to 225 psi (1,551 kPa).

Step 2.

Operate personnel cab pressure governor in PSI mode (WP 0024).

Press PRESET

switch (WP 0004).

Check if water pump pressure increases to preset value.

If water pump pressure increases to preset parameter, fault corrected.

Tools and Special Tools

Tool Kit, General Mechanic’s: Automotive

(WP 0622, Item 27)

References

WP 0004

WP 0022

WP 0024

WP 0078

WP 0193

Equipment Conditions

Water pump engine OFF (WP 0022)

Engine OFF (TM 9-2320-347-10)

Wheels chocked (TM 9-2320-347-10)