Zhumell Z10 DELUXE Owner's Manual page 6

USING YOUR
ZHUMELL DOBSONIAN TELESCOPE
COLLIMATION
Periodically, you will find that it is necessary to align the optical components
of your telescope. This procedure is called collimation. There is no
collimator included with the Zhumell Dobsonian, but regular collimation is
recommended for optimum telescope usage.
1.
Remove the eyepiece from the eyepiece holder and insert laser
collimator into eyepiece holder. Secure the laser collimator by tightening
thumbscrew.
2.
Turn the thumbscrew located on the side of the collimator to turn on
the collimator.
3.
Look through the hole in the side of collimator to see where the laser is
reflected onto the reticle. If you cannot see the laser reflected back onto
the reticle, align the secondary mirror by adjusting the secondary mirror
collimation screws until the laser is reflected onto the inside of
the collimator.
4.
Loosen 3 locking screws on bottom of optical tube (the thin ones that
stick farther out from the back of the mirror).
5.
Align the laser to the center of the reticle by adjusting the 3 primary
mirror adjustment screws (the thick screws in the back of the mirror). Do
not over-turn these screws (max of ¼ turn at a time).
6.
Tighten the 3 locking screws on bottom of optical tube to lock the
primary mirror into place.
6