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 28 of 1452
TM 5-4210-249-13&P-2
0126-6
DRAFT
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TFFT02545
Step 7.
Turn battery disconnect switch to ON position (WP 0007).
Disconnect cab pump control
wire harness cab power distribution wire harness connector.
Turn battery disconnect
switch to OFF position (WP 0007).
With a test lead set, check for 22 to 28 VDC
between cab power distribution wire harness wire 1018 (violet) at cab power distribution
wire harness connector, terminal 12 and a known good ground.
a.
If 22 to 28 VDC are present, repair wire 1018 in cab pump control wire
harness if repairable (TM 9-2320-325-14&P), or replace cab pump
control wire harness (WP 0443).
b.
If 22 to 28 VDC are not present, repair wire 1018 in cab power
distribution wire harness if repairable (TM 9-2320-325-14&P), or
replace cab power distribution wire harness and block (WP 0441).
Step 8.
Check if any backlights on cab pump control switches illuminate.
If all backlights on cab pump control switches do not illuminate, go to
Step 11.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
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