Method 1
1)  Point telescope at bright sky.
2)  Insert Sight Tube into Eyepiece Mount
    and observe view of uncollimated scope
    similar to diagram at the left.
3)  Adjust the Spider's Central Bolt to
    Center the Flat Mirror under Crosshairs.
4)  Adjust the 3 Pivot Screws on back of
    Spider to Center Image of Main Mirror
    under the Crosshairs.
5)  Adjust the Set Screws on the back of the
    Main Mirror to Center Image of Eye
    under the Crosshairs.
Place Mouse over Underlined links to simulate action described. Reset at any time you want.