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No need to remove the eyepieces.
Under the rubber molding you will find a little grub screw. These are the collimation adjustment screws. Do not remove the eyepieces or the prism casing.
To lift the rubber molding, you will need a Stanley knife or scalpel. Carefully cut along the egde of the molding/body junction & lift the molding. A little at a time until you find the grub screw. It is usually located at the eyepiece end of the casing.
Mark one side of the screw head with a white marker & the casing so you know where start point is of the turning process. Then at night, using a bright star, see how out of alignment the binos are. Then with an allen key or slotted jewellers screwdriver, give ONE grub screw a 1/4 twist & recheck collimation with the star. If the image has improved, twist the OTHER screw in the opposite direction & recheck.
if the alignment has worsened, twist the FIRST screw in the other direction a 1/4 turn past the start mark & recheck, following the procedure above until you get a single image.
To reattach the molding, use a little silicone glue. Just a little in case you should need to readjust the collimation some time.
Collimating binos is not hard, just a little time consuming.
Mental.
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