The procedure below outlines the steps necessary to install the ASI Microscope Focus Controller Drive onto the Nikon SMZ-1500 microscope.
The hex wrenches are provided by ASI.
Remove the left fine focus knob from the microscope as follows:
Remove the robber boot that is over the knob. Use 1.5mm Allen wrench to loosen setscrew on fine focus knob & two setscrews on left zoom knob. Pull knobs straight off.
Locate the baseplate. If the motor drive is attached to the base plate use the 7/64 “mm Allen wrench to remove the horizontal adjustment screw to remove the drive from the base plate. Use the 7/64 “mm Allen wrench to loosen the two vertical adjustment screws as shown in figure 2.
Install the base plate onto the microscope as shown in figure 8. Use the two original screws to secure the baseplate to the microscope as shown in figure 9 and tighten securely.
Install the drive as shown in figure 10. Please note that there is a groove on the baseplate that the tab on the adjustment bar slides into. Secure the drive to the base plate with the horizontal adjustment screw as shown in figure 11. Push drive clamp up against focus knob & tighten as shown in figure 12. Please not that this clamp must be securely tightened to prevent any slippage. After the drive clamp has been securely tightened tighten the vertical adjustment screws as shown in figure 13.
Check the alignment by noting the drag while turning the right fine focus knob. No noticeable drag should be felt at any point with in the full 360 degrees of rotation. If any noticeable drag is felt loosen the Vertical & Horizontal adjustment screws and reposition the drive to a point where no drag is felt. Then hold the drive in place and tighten Vertical & Horizontal adjustment screws.
Install the cover and secure in place with the button head screws and the 1/16” Allen wrench. Install the original fine focus knob as shown and secure in place with the 1.5mm Allen wrench. Please Note: that the setscrew in the fine focus knob should mate with the flat that is on the shaft.
This completes the procedure for installing the ASI motor drive on to the Nikon SMZ 1500 stereo zoom microscope
Locate the zoom gear and spacer as shown in figure 14. Install this assembly onto the zoom shaft as shown in figures 15 & 16. Align and secure the gears in place as shown in figures 17 through 20. Then install the cover as shown in figure 21. Please note that the zoom assembly of the microscope may need to be turned in the stand slightly as described in figure 20 to get the gears to mate properly.
Check the alignment by noting the drag while turning the right zoom knob. No noticeable drag should be felt at any point with in the full 360 degrees of rotation. If any noticeable drag is felt loosen the Zoom assembly and realign it.