DRAFT
TM 5-4210-249-13&P-1
0096
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT04414
Step 7.
Turn battery disconnect switch to ON position (WP 0007). Put pump operator's panel
FOAM SYSTEM switch to ON position (WP 0004). While an assistant holds pump
operator's panel FOAM TANK switch to "B" position (WP 0004), check for 22 to 28 VDC
across cab power distribution wire harness wire 2843 (red) from cab power distribution
block relay 7, terminals 1 and 5 to a known good ground.
a.
If 22 to 28 VDC are present at both terminals, replace relay
7 (WP 0402).
b.
If 22 to 28 VDC are present at one but not both terminals, replace cab
power distribution wire harness and block (WP 0441).
c.
If 22 to 28 VDC are not present, go to Step 8.
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 8.
While an assistant puts and holds personnel cab FOAM SELECT switch to "B"
position (WP 0004), check for 22 to 28 VDC across wire 2843 (red) from cab power
distribution block relay 7, terminals 1 or 5 to a known good ground.
If 22 to 28 VDC are present, go to Step 10.
0096-4
