Even though troubles occurring in electrical equipment are the responsibility of the Electri-cians Mate, the Engineman can facilitate maintenance of such equipment by making a few simple checks when electrical troubles occur. Failure to have a switch in the ON position will cause unnecessary delay in operating electrical equipment. If the switch is closed and the equip-ment still fails to operate, check for blown fuses and tripped circuit breakers. Troubles of this type are usually the result of an overload on the equip-ment. If a circuit breaker continues to cut out, the trouble may be caused by damaged equip-ment, excessive binding in the electric motor, obstruction in the hydraulic transmission lines, or faulty operation of the circuit breaker. Check for visual indication of open or shorted leads, faulty switches, and loose connections. Do not make repairs to the electrical equipment or system and do not open enclosures of electrical equip-ment, but report the condition to the Electricians Mate when evidence of electrical failure is found.

Mechanical Troubles

When an electrohydraulically driven auxiliary becomes inoperative because of a mechanical failure, a check should be made for improper ad-justment or misalignment of parts; shearing of pins or keys; or breakage of gearing, shafting, or linkage. Elimination of troubles resulting from any of these causes should be accomplished ac-cording to the manufacturers instructions for the specific piece of equipment.