how to use LDA quartz regenerator??? help

i have garrard 401 and bought this Longdog audio regenerator.   I cant get the platter to be on 33 rpm .   when play a record the music drags of course.   i use the speed control knob and not get it there. Turned all the way to right and still slow.

the directions less than clear to me.   i read them to say use the speed control knob to get to speed of 33.   when i try to use the garrard controls makes no difference.  still slow.

can someone tell me what i am doing wrong please?