DRAFT
TM 5-4210-249-13&P-1
0094
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT03709
WARNING
ICON 3
Remove rings, wristwatches, neck chains, and any other jewelry before working
around vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry
and tools may short across electrical circuits and cause damage to equipment, or
severe burns or electrical shock to personnel.
Step 10.
Turn battery disconnect switch to OFF position (WP 0007). Remove personnel cab
instrument panel A (WP 0311). Remove relay 10 from cab power distribution block
(WP 0402). Turn battery disconnect switch to ON position (WP 0007). While an
assistant holds pump operator's panel FOAM SYSTEM switch to OFF position
(WP 0004), check for 22 to 28 VDC between wire 2831 (blue) from cab power
distribution block relay 10, terminal 1 to a known good ground.
If 22 to 28 VDC are not present, go to Step 12.
Step 11.
Turn battery disconnect switch to OFF position (WP 0007). Check for continuity across
cab power distribution wire harness wire 1640 (black) from cab power distribution block
relay 10, terminal 2 to a known good ground.
a.
If there is continuity, replace relay 10 (WP 0402).
b.
If there is no continuity, replace cab power distribution wire harness
and block (WP 0441).
0094-8
