Meade NG70-SM, Instruction Manual

Page: 15 / 24

• When absolutely necessary, dust on the
front lens should be removed with very
gentle strokes of a camel hair brush or
blown off with an ear syringe (available at
most pharmacies).
• Fingerprints and organic materials on the
front lens may be removed with a solution
of 3 parts distilled water to 1 part isopropyl
alcohol. You may also add 1 drop of
biodegradable dishwashing soap per pint
of solution. Use soft, white facial tissues
and make short, gentle strokes. Change
tissues often.
CAUTION: Do not use scented or lotioned
tissues or damage could result to the optics.
DO NOT use a commercial photographic
lens cleaner.
ADJUSTING THE HORIZONTAL AND
VERTICAL TENSION OF THE OPTICAL TUBE
If the horizontal and/or vertical movement of
the optical tube seems to be too loose or too
tight, you can adjust the amount of tension in
the movement of the optical tube to suit your
own preference. To adjust the horizontal
tension of the optical tube, use an adjustable
wrench or nut driver to tighten or loosen the
horizontal adjustment nut located under the
base of the telescope. See
F Fiig g.. 6 6 .
To adjust the vertical tension of the optical
tube, first loosen the attachment knobs (11)
and remove the optical tube from the bracket.
Use an adjustable wrench or nut driver to
tighten or loosen the vertical adjustment nut
located on the inner side of the bracket. See
F Fiig g.. 7 7 . Check the amount of tension by
moving the bracket up and down before
reattaching the optical tube.
OPTIONAL ACCESSORIES
#928 45° Erecting Prism (1.25 O.D.):
Correctly orients the telescopic image
during terrestrial observing and yields an
image position at a 45° angle to the main
telescope tube, resulting in a more
comfortable observing position in
13
Looking at or near the Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.
Fig. 6 : Horizontal adjustment nut. (View
of the underside of the base.)
Horizontal
adjustment
nut
Fig. 7: Vertical adjustment nut. (Bracket
shown with optical
tube removed.)
Vertical
adjustment
nut
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