Maintenance
Cleaning the lenses
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At the outside of the viewer, you can clean the lenses with a soft cloth
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Remove the 10 bolts at the edge of the front panel with the hexagon tool. The front
comes lose, be careful that it does not drop!
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Behind the front panel, behind the lens
barrels, you see a square aluminum panel.
When there is a lot of dust or dirt at the rear
of the lenses, with a soft cloth you can clean
them trough the square holes.
Replacing the lenses or barrels
The achromatic: lenses d= 30 mm. f= 60 mm. Are common lenses and used in other products
of ‘de Wijs’. The same counts for the lens barrels, they are used in panel viewers as well.
Both can be ordered as replacement parts at ‘de Wijs’.
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Remove the 10 bolts at the edge of the front panel with the hexagon tool. The front
comes lose, be careful that it does not drop!
-
Behind the front panel, behind the lens
barrels, you see a square aluminum panel.
On top of this panel you will find 2 bolts
that lock the lens barrels of being screwed
out. Remove these bolts and screw the lens
barrels out of the aluminum panel.
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For replacing the lens, you need a metal
plate of 30 mm. Wide. It will fit in the slot
of the black ring behind the lens. Then you
can unscrew this ring and the lens comes out
of the barrel.
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Take the new lens, clean the front and rear side. The rear is
the most curved side of the lens, aiming to the slide. The
most flat side is close to the eye. Insert it in the barrel and
lock it up with the ring, screw it in the panel and lock the
barrel with the bolt.
