19
Readjusting the brake:
Set the two binocular tube sockets to the narrowaet
distance. Two groups of three screws each 1111ill become
visible.
Use a screwdriver
to tighten the smell screws
to slacken the small
stiffer motion
smoother motion
•
. Do not change the position of the big screws.
lB.
Ha intenance
The microscope has a long life. Care and maintenance
easy. Please observe the following directions:
Protect the instrument from temperatures above
+50
°C1
frost, humidity, gross and rapid temperature variations,
chemically aggressive substances, direct sunlight, and dust
(Use anti-dust caps, slide plugs, and anti-dust hoods).
Most of the birefringent dust particles will reduce the
image
_
qu
al
i
ty.
Optimum conditions prevail at room temperatures between
18
and
28
°C.
Remove dust from optical surfaces with the aid of a rubber
blower or a natural hair brush degreased in alcohol and
dried afterwards (optics cleaning kit). Avoid any finger
prints on optical surfaces. Remove any obstinate contamina
tions and finger prints with the aid of an anti-dust
cloth or a leather cloth (optics cleaning kit); if necessary,
breathe on the contaminated surface before. Check objective
front surfaces with a magnifier (for possible immersion oil
on dry systems).
Remove immersion oil from
HI
objectives with the aid of a
dust-free cloth and benzine, xylene or benzene. Do not use
alcohol.
Cleaning the objectives is confined to keeping clean the
front atld rear lenses. Do never dismantle objectives.
