The procedure below outlines the steps necessary to install the ASI Microscope Focus Controller Drive onto the Nikon MM-800 microscope.
The Allen hex wrenches, and screws are provided by ASI
As shown in figures 1 though 6 remove the cover and fine focus knob from the left side of the focus assembly.
Locate the brass clutch plate shown in figure 7 and install it onto the fine focus shaft as shown in figures 8 & 9. Insure the plate is pressed completely onto the focus shaft & that the setscrew is securely tightened to hold the plate onto the fine focus shaft. Please note that the setscrew must engage the flat on the fine focus shaft shown in figure 6.