Orion 10026 XT6i Instruction Manual page 6

C
N
L
K
D
E
F
A
Figure 2.
Exploded view of the XTi IntelliScope Dobsonian base.
assembly of the Dobsonian Base
Refer to Figure 2 during base assembly. The base need only
be assembled once, unless you disassemble it for long-term
storage. The assembly process takes about 45 minutes and
requires, in addition to the supplied tools, a Phillips screw-
driver, and two adjustable crescent wrenches. You can substi-
tute a 7/16" crescent wrench for one of the adjustable cres-
cent wrenches, or use a pair of pliers.
When tightening screws, tighten them until firm, but be careful
not to strip the holes by over-tightening. If you use an electric
screwdriver, do final tightening with a standard screwdriver to
avoid stripping.
1. With a Phillips screwdriver, screw the plastic feet into the
underside of the ground baseplate (A) using the self-tap-
ping wood screws provided. Insert the screws through the
feet and thread them into the predrilled starter holes.
2. Loosely attach the front brace (B) to the two side panels
(C) with six of the base assembly screws in the predrilled
holes. Use the 4mm hex wrench to tighten the screws. The
6
B
G
J
H
I
Spacer
washer
Figure 3a.
The spacer washer goes between the azimuth
M
encoder board and the top baseplate of the Dobsonian base.
Encoder board
mounting screw
Figure 3b.
Installing the azimuth encoder board. Line up the large
hole in the encoder board with the central hole in the top baseplate.
side panels should be oriented so the SkyQuest IntelliS-
cope labels are facing outward. The front brace should be
oriented so the threaded insert is facing the interior of the
base. Do not completely tighten the screws yet.
3. Connect the two side panels (C) with the front brace
attached to the top baseplate (D) with the remaining six
base assembly screws in the predrilled holes. The side of
the baseplate with the pilot hole near the square-shaped
cutout should be facing downwards. Tighten all six screws
firmly.
4. Tighten the six side screws installed earlier.
5. Attach the azimuth encoder board (E) to the underside of
the top baseplate (D). Insert the encoder board mounting
screw through the circuit board and install the small spacer
washer (G) over the screw (Figure 3a). Insert the modular
jack on the encoder board into the square-shaped hole
in the baseplate and align the encoder board so that the
small slotted hole in the board lines up with the predrilled
starter hole, and the large hole lines up with the central
hole in the baseplate. Thread the encoder board mounting
screw into the predrilled starter hole with a Phillips screw-
driver and tighten until just tight (Figure 3b).
Azimuth encoder board