25
Aligning the secondary mirror
Point the telescope at a lit wall and insert the collimating cap into the focuser in place of a
regular eyepiece. Look into the focuser through your collimating cap. You may have to twist
the focus knob a few turns until the reflected image of the focuser is out of your view. Note:
keep your eye against the back of the focus tube if collimating without a collimating cap.
Ignore the reflected image of the collimating cap or your eye for now, instead look for the three
clips holding the primary mirror in place. If you can't see them (Fig.28), it means that you will
have to adjust the three bolts on the top of the secondary mirror holder, with possibly an Allen
wrench or Phillip's screwdriver. You will have to alternately or loosen one and then compensate
for the slack by tightening the other two. Stop when you see all three mirror clips (Fig.29). Make
sure that all three small alignment screws are tightened to secure the secondary mirror in
place.
Aligning the primary mirror
Find the three locking screws at the back of your telescope and loosen them by a few turns.
If you see 3 large nuts protruding from the back of your telescope and 3 small Phillip's-head
screws besides them, the Phillip's-head screws are the locking screws and the large nuts are
the adjusting screws. (See figure 30).
If you see 6 Phillip's-head screws but 3 protruding from the back of your telescope, the
protruding screws are locking screws and the ones next to them are adjusting screws.
(See
figure 31).
If you see 3 hex bolts and 3 Phillip's head screws, the hex bolts are the locking screws and the
Phillip's-head screws are the adjusting screws. You will need an Allen wrench to adjust the
locking screws
.
(See figure 32).
Summary of Contents for CDB1145EQ1
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