7
MAINTENANCE
WARNING: FOR YOUR SAFETY, TURN SWITCH OFF AND REMOVE PLUG FROM POWER SOURCE OUTLET
BEFORE MAINTAINING YOUR MICROSCOPE. TO AVOID SHOCK OR FIRE HAZARD, IF POWER CORD IS
WORN, CUT OR DAMAGED IN ANY WAY, HAVE IT REPLACED AT ONCE.
1. MECHANICAL
MAINTENANCE
A. The only mechanical adjustment the microscope might require is the tension of the focusing mechanism. This
has been adjusted at the factory but over the coarse of time it may loosen and cause the stage to slip
downward on focus mechanism.
B. Coarse focus tension adjustment.
a) Tension adjustment knob is located between stand and coarse focus knob of microscope, on the right
side.
b) To tighten tension of coarse focus knobs, turn control in a counter-clockwise direction. It is advisable to
leave controls as loose as possible, tightening only enough to keep stage from drifting down and out of
focus. To loosen tension, turn control in clockwise direction.
2. OPTICAL
MAINTENANCE
A. Do not attempt to disassemble any lens component. Consult an expert technical service company when
repairs not covered by these instructions are required.
B. Prior to cleaning any lens surface, brush dust or dirt off lens surfaces using a camel hairbrush. Or use air to
blow dust and lint off surfaces. Use of compressed air in a can, available at any computer supply store, is a
good source of clean air.
C. Cleaning eyepiece lenses.
Do not remove eyepiece from eyepiece tube. Clean only the outer surface. Breathe on lens to dampen
surface, then wipe with lens paper. Do not wipe lens surface while dry as lenses are scratched very easily.
Wipe a circular motion from center to outer edges.
D. Cleaning objective lenses.
Do not remove objective lenses from microscope. Clean front lens element only. Using a cotton swab
saturated with distilled water, clean front lens surface. Inspect the lens using a magnifying glass to insure
that the element is clean. If immersion oil or specimen material of any kind is evident, use a cotton swab
dipped in a small amount of xylene or Windex to clean all foreign material from objective lens surface. Such
material will reduce, or totally block, image quality.
E. Cleaning condenser lens.
Clean only the top lens surface, visible when looking through hole in top of stage. Use same procedure as
used for eyepiece or objective lenses.
F. Illuminator condenser lens.
Use same procedure as used for eyepiece or objective lenses.
3. ELECTRICAL
MAINTENANCE
WARNING: FOR YOUR SAFETY, TURN SWITCH OFF AND REMOVE PLUG FROM POWER SOURCE
OUTLET BEFORE MAINTAINING YOUR MICROSCOPE.
A. Replacement of lamp.
