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Sj iftsteitog Counterweight Rod. (1) Decl.lnation l-to.usifiij; {*«!■ : )
Counterweight Cone; (3) Counterweight Rod; (4) R.A. Slow-Motion
Control Shaft; (5) R.A, Lock Lever; (6) Dec Slow-Motion Control
Shaft (on opposite side); (7) Saddle Plate.
Fig. 3: Attaching the Equatorial Head to Tripod. (
1
) Fine Azimuth
Adjustment Knobs: (2) Azimuth Tangent Arm: (3) North Facing Tripod
Lag; (4) Tripod Head; (5) Equatorial Head.
Motion Control Shaft (4). Fig 5, by aligning the knob so
that its knurled thumb screw will slice directly over the flat
area on the R.A. Slow-Motion Control Shaft, Tighten the
knurled thumb screw to a firm feel. Do not overtighten.
Attach the second knob to the Dec Slow-Motion Control
Shaft (6). Fig 5, by aligning the knob so hial its knurled
thumb screw will slide directly over the flat area on the Dec
Slow-Motion Control Shaft.
Tighten the knurled thumb
screw to a firm feel
Do not overtighten.
the Tripod Head and into the base of the Equatorial Head.
Tighten firmly but do not overtighten.
Simultaneously
tighten
both of the Fine Azimuth
Adjustment Knobs (1).
Fig. 3.
Each knob will
press
against
the
Azimuth
Tangent Arm.
Do not overtighten.
BALANCING THE TELESCOPE
Fig. 4: Lack Knob with Twist Bar.
With your telescope tube assembly mounted on the LXD 500
mount, It is necessary to balance the telescope around both
axes.
With an improperly balanced telescope, objects may
become difficult to find or. once found, may be easily lost. To
balance the telescope:
1.
Loosen the R.A, lock lever (3), Fig. 6, by rotating the lever
counterclockwise until it slops. The Optical Tube Assembly
now rotates freely about the Polar Axis (18). Fig. 1. Rotate
the telescope so that the counteryveight rod is parallel to
the ground (horizontal).
2.
Loosen the counterweight lock screw(s) (10), Fig. 1, and
slide the counterweightfs) along the rod until the telescope
remains in one position without tending to drift in either
direction, Re-tighlen the counterweight lock screw(s) and
the R.A, lock lever (3), Fig. 6
3.
Loosen the Dec lock lever (2), Fig. 6, by rotating the lever
counterclockwise until it stops. The Optical Tube Assembly
now rotates freely about the Declination Axis (11), Fig, 1
Rotate the telescope so that the tube is parallel to the
ground (horizontal)
4.
Loosen the fixtures* holding the Optical Tube Assembly in
Attaching the Counterweights:
On the counterweight rod (3), Fig. 5, confirm that the gray
counterweight cone (2), Fig, 5 is threaded onto the rod as
far as possible. Then, thread the counterweight rod. with
the counterweight cone in place, into the bottom of the
rieclination housing (1), Fig. 5,
When the counterweight
tod is threaded in as far as pos.sible, additionally secure the
lod by turning Ihe gray counterweight cone (2). Fig. 5,
r Icckwise until tight.
At the end of the counterweight rod (3), Fig. 5, unscrew the
I ounterweight safety Slop (12), Fig.
1,
Slide one
I ci.nterweight onto the rod and lock in place by tightening
I's black counterweight lock screw (10), Fig. 1.
For the
LXD 5008 mount, slide the second counterweight into
piace
and
tighten
its
lock
screw.
When
the
counterweight(s) is secure, replace the countera/eight
safety stop
Be certain that Ihe counterweight safety
stop is always securely in place.
Slow Molion Control Knobs:
fhere are two identical slow molion control knobs. See (4)
C
A
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