Abstract: An operator for a railroad implement is provided with a linkage which mechanically isolates an actuator from impact forces transmitted through the linkage. Isolation provided by the linkage permits the use of a low power actuators which easily lend themselves to complete energization from solar energy sources. The operator is also provided with a safety electric interlock to prevent energization of the actuator during manual operation. A spring assembly tool is incorporated into the operator housing to facilitate installations and removal of compression springs in the operator mechanism.