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.
Stop water pump engine (WP 0022). Turn battery disconnect switch to OFF
position (WP 0007). Remove personnel cab instrument panel B (WP 0311).
Disconnect wire 4075 (red) from personnel cab PUMP RUNNING indicator. Turn
battery disconnect switch to ON position (WP 0007). Start water pump
engine (WP 0022). Check for 22 to 28 VDC between cab pump control panel wire
harness wire 4075 (red) terminal from PUMP RUNNING indicator connector to a known
If 22 to 28 VDC are not present, go to Step 11.