How to collimate binoviewers

Hi,


I have a Denkmeier dieelectric coated binoviewer which I
haven't used for months. When I tried to use it yesterday
with 2 identical 15mm TV Plossl. I couldn't reach identical
focus. I have to pull one of the eyepiece a little to make
the view matched. For those who own Denkmeier. What do you
do when your bino got out of collimation?? I can't send it
to Russ because I live half a world away. So I plan to
adjust it myself. Thanks in advance for the tips.

Stereoh