4-6. Check vertical movement of the coarse focus
adjustment guide.
4-6-l. Move the coarse focus adjustment guide
vertically and confirm that there is no
excess friction, uneven movement or play.
4-6-2. If excess friction, uneven movement or
play is observed, adjust them by either
tightening or loosining 2 screws (AB3 x
10SA) which hold the block (AB009700).
4-7. Mount the coarse focus rack (AB469300)
from the back of the arm with 2 screws
(AB3 x 1 OOOSA).
4-8. Place the back cover (A84663001
on the arm.
4-8-l. Push 6 rivets (AB435500) into
the holes.
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