Sounds like another leg lifting exercise, no doubt by one of the big "professional" Part 145 outfits.
R44 MM Page 2.25, describes "Method 2" for testing the actuator (manually depressing the column springs), stating that if the motor runs for more than approximately 2 seconds, stop for a moment then depress the spring again, if motor runs again then replace the opposite switch per Section 7.551.
Switch P/N: C053-2 - List Price $165
Last edited by powerlimited; 23rd Aug 2013 at 17:23.