Part of the U.S. Army technical manual published on 13 November 1963 dealt with the installation, operation, and maintenance of the Hammond organ, which was then the instrument of choice in chapels on army bases.
One of the chapters details the destruction of the organ in the case of the capture or abandonment of the instrument to an enemy, urging all concerned to memorize the procedures so the manual will not have to be consulted in an emergency.
The chapter (above) is reprinted in “Your tax dollars at work for you” by Rollin Smith (The American organist LI/7 [July 2017] p. 88. Below, one way to do the job.