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.
Disconnect vehicle's negative battery terminals (TM 9-2320-325-14&P). Remove high
amperage 2 gauge cable by disconnecting high amperage 2 gauge cable from primer
pump motor control solenoid and B+ terminal (WP 0393). Reconnect vehicle's negative
battery terminals (TM 9-2320-325-14&P). Turn battery disconnect switch to ON
position (WP 0007). While an assistant puts and holds personnel cab PUMP PRIME
switch to on position (WP 0004), check for continuity across primer pump control
solenoid from high amperage 2 gauge cable terminal to primer pump electrical strip.
If continuity is present, replace primer pump (WP 0262).
If continuity is not present, replace primer pump motor control
solenoid (WP 0260).