Stop Solenoids & Relays
for Perkins Engines

If the solenoid is not installed correctly and a failure is encountered the manufacturer’s warranty will not cover a replacement unit. It is very important to ensure that the plunger is fully bottomed when final linkage is connected. If the solenoid is restricted from bottoming out in the retract/energized mode then it will burn out in approximately 30 seconds. Insufficient current will also result in failure.

TEST PROCEDURE TO DETERMINE PLUNGER HAS BOTTOMED
On units with an auxiliary third terminal, connect a voltmeter or appropriate light (voltage rating) between auxiliary and "+" terminals. When the solenoid is energized and the plunger bottoms, the voltmeter will indicate the battery voltage or the light is energized.

VISUAL METHOD
Push the plunger to the full bottomed position and measure the plunger extension length from the solenoid body before the linkage is connected. Connect linkage and energize the solenoid. If the plunger has fully bottomed, the plunger extension lengths should be the same.