TEST OR INSPECTION
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.
Remove No. 4 passenger side discharge valve flow sensor (WP 0390). Do not
disconnect wires from sensor. Push pump operator's panel NO. 4 PASSENGER SIDE
DISCHARGE valve control FLOW button. While an assistant spins flow sensor paddle,
check if a flow reading is displayed when flow sensor paddle is spinning.
If a reading of 0 gpm (0 lpm) is displayed when flow sensor paddle is
spinning, go to Step 16.