Preventative Maintenance

In addition to new products, LGS also provides top-level maintenance and repair services.

Contact us to schedule your service appointment.


Compound Microscopes

  • Clean and inspect eyepieces
  • Inspect and clean objectives
  • Inspect and clean head
  • Inspect and clean illuminator/condenser/filters
  • Inspect aperture and field diaphragms
  • Inspect, clean, lubricate and adjust stage mechanisms
  • Inspect, clean, lubricate and adjust zoom mechanisms
  • Align illuminator
  • Verify quality of image through all objectives
  • Lubricate lead screw (if applicable)
  • Clean camera coupler (if applicable)

Stereo Microscopes

  • Zoom alignment: Check centration and focus
  • Clean and inspect eyepieces
  • Clean bottom lens elements
  • Clean auxiliary lens
  • Inspect internal lenses
  • Inspect focus mount rack and pinion
  • Adjust tension if necessary
  • Lubricate rack and pinion

Microscope Repair

We pride ourselves on providing excellent service. Our technicians are experienced and highly trained craftspeople dedicated to keeping your equipment working at its peak. We know you will be happy with our work. We guarantee it!


  • Eyepieces
  • Objectives
  • Reticle
  • Filters


  • Stage (X and Y)
  • Rack & pinion lube & adjust
  • Eye tube alignment
  • Illuminator / Condenser adjust


  • Lamp alignment
  • Socket / Plug
  • Power supply
  • Transformer