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 47 of 1452
TM 5-4210-249-13&P-2
0127-11
DRAFT
0127
Step 21.
With a test lead set, check for continuity across sensor power wire from pump discharge
pressure transducer wire harness connector, terminal 3, to pump discharge pressure
transducer wire harness connector, terminal B.
If continuity is not present, repair sensor ground wire in pump intake
pressure transducer wire harness if repairable (TM 9-2320-325-14&P), or
replace pressure transducer wire harness (WP 0460).
Step 22.
Connect pump discharge pressure transducer wire harness connector to cab discharge
digital pressure gauge wire harness connector.
Turn battery disconnect switch to ON
position (WP 0007).
With a test lead set, check for 22 to 28 VDC at pump intake
pressure transducer wire harness connector, terminal B to terminal A.
a.
If 22 to 28 VDC are present, replace pump intake pressure
transducer (WP 0411).
b.
If 22 to 28 VDC are not present, replace PUMP INTAKE digital
pressure gauge (WP 0317).
TFFT04359
Step 23.
Check if pump operator’s panel PUMP DISCHARGE digital pressure gauge displays an
error message.
If pump operator’s panel PUMP DISCHARGE digital pressure gauge does
not display an error message, go to Step 28.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
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