Adjusting The Declination Lock; A Note On The'flashlight'test; Factory Servicing And Bepairs - Meade 8" LX100 Series Instruction Manual

_48-
5.
Adjusting
The Declination Lock
Continual use of the
Declination
lock (#2, Fig.8) may cause
this
lock
to loosen. To retighten
the lock, first
turn the manual Declination slow motion knob (#6, Fig. 8),
so
that
the Declination tangent arm (located inside
the
left-hand
fork arm)
is about in
the middle
of
its
travel.
Put
the Declination lock
lever in
the "unlocked"
position, and insert
the appropriate
hex
wrench into the
notched-out section of
the left-hand
fork arm (see
Fig. ZO,
below). Tighten
ihe
hex-head nut
located
just inside the notch. See Fig.
29.
Caution: a
little
tightening of this
nut
goes a
long
way;
generally, only one
turn of the nut is
required
to fully retighten
the
Declination lock.
Fig.29:
Adjusting the Declination Lock.
6.
A Note On The "Flashlight" Test
Approximately 94h
of
the light
impinging on
the primary mirror of
the 8" and 10'LX100 is reflected by the
mirror; about'6% of
the light
is scattered.
Similarly, the correcting plate
of
either model transmits about 98%
of the light impinging at each
surface; aboul2/" of
the
light impinging each surface is scattered.
lf a
flashlight
or other
high-intensity light source
is pointed down
the
main telescope tube under
dark
conditions, the
total amounl of
scattered
light
will
be
very
considerable. As a
result, the optics of the
telescope
will appear to be of
very poor surface
quality.
This same statement may be made of
any high quality optical
surfaces
when
given this
grossly misleading "test."
7. Factory Servicing And RePairs
Meade g" and
10"
schmidt-cassegrains have been designed and manufactured
for years of
trouble-free
operation
and repairs
should rarely
be necessary. lf
a problem does
occur, first write or call our Customer
Service Department.
Do not return the telescope for servicing until
you
have communicated
with us in this
way, since the great majority of problems can be handled without return of the telescope
to
us.
When
telephoning
or
writing, please explain
in
detail the exact nature
of
the problem
so that
we
may
offer
a
prompt
remedial
procedure. Be sure
to
include your full
name, address and
phone
number'