Celestron NexStar 80GTL User manual

Extend tripod legs 6 to 8 inches by loosening
the tripod leg locking bolts and pulling the leg
to desired length and re-tightening knob.
Assemble tripod by spreading the legs out until
the center leg brace is fully extended.
Item #31132
Quick Set-up Guide
123
All three legs should be the same length to
provide a level platform for the telescope.
4
7
Properly assembled, the accessory tray should
appear as pictured above.
Place accessory tray on top of center leg
brace as shown above.
5
To secure the accessory tray to leg brace,
tighten the attached screw located underneath
the leg brace.
6
Next Loosen the screw located on the
telescope tube ring clamp.
8
To balance the telescope, slide the tube ring
clamp to the line on the warning sticker located
on the telescope tube. Then tighten the tube ring
clamp screw.
9
NexStar 80GTL
Your NexStar 80GTL includes: optical tube w/ fork
arm attached; tripod; computerized hand control;
solar filter; erect image diagonal; two eyepieces;
finderscope; battery pack; accessory tray w/
compass; documentation including an owner’s
manual, The Sky™ CD and Telescope Control
Software.
Warning sticker line

Quick Set-up Guide [cont]
Hold the telescope tube assembly by the fork
arm and place the bottom of the base inside
the tripod mounting platform as shown.
11
Then thread the coupling screw into
the hole at the bottom of the fork arm base.
Tighten screw to secure the entire assembly.
12
When properly assembled your telescope
should look like this.
13
Place the computerized hand control in the
bracket on the accessory tray and connect the
hand control to the fork arm base as shown.
14
Attach the battery pack to the tripod by
hanging the strap from one of the wingnuts on
the tripod.
15
To attach the finderscope, loosen the silver
screw and slide finderscope into mounting
platform. The glass window should be facing
towards the front of the telescope.
16
Tighten silver screw to secure finderscope in
place.
17 18
Insert the chrome barrel of the 90º erect image
diagonal into the focuser and tighten the two
silver screws to secure in place.
19
Next loosen the silver screw at the top
of the 90º erect image diagonal and remove
the plastic cover.
20
Select the low power (25mm) eyepiece and
insert it as shown above. Tighten silver screw
to secure.
21
Remove tube lens cap to begin viewing.
22
While observing, tube should be positioned as
shown above.
23
A solar filter may be installed for viewing the
sun. Before use check to make sure there are
no pin holes in it. See inset. See owner’s
manual for complete instructions.
10
For detailed usage
information please
consult your manual.
Now you are ready to put in the 90º erect
image diagonal. First you must loosen the two
silver screws and then remove the plastic cap
from the focuser.
Coupling screw