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 478 of 1188

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

0079-6

DRAFT

0079

END OF TASK

TFFT04446

Step 11.

Start water pump engine (WP 0022). With a test lead set, check for 22 to 28 VDC on

wire 4060 from personnel cab pressure governor 12-terminal connector, terminal 10 to

a known good ground.

If 22 to 28 VDC are present, replace personnel cab pressure governor

control panel (WP 0309).

Step 12.

Turn water pump engine off (WP 0022).

Disconnect pump operator’s panel pressure

governor pressure transducer wire harness connector.

Connect personnel cab

pressure governor pressure transducer wire harness connector to pump operator’s

panel pressure transducer. Start water pump engine (WP 0022).

Operate personnel

cab pressure governor in PRESSURE mode (WP 0024).

Check if sensor or cavitate is

displayed on personnel cab pressure governor MESSAGE DISPLAY.

a.

If sensor or cavitate is displayed on personnel cab pressure governor

MESSAGE CENTER, replace personnel cab governor control

panel (WP 0309).

b.

If sensor or cavitate is not displayed on personnel cab pressure

governor MESSAGE CENTER, replace pressure

transducer (WP 0411).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION