HP LASERJET 3600 - Manual (Page 14)

holes from larger gears should both be showing as illustrated by the red circles . (The
large gears are under the frame and driven by the smaller gears.)
18. With the above in alignment, install the main drive assembly. Start at the left side, inserting
the MDA into the metal slots and rotate it into position. Place a screw in the upper right corner
of the MDA to help keep it in place if the MDA doesn?t fit flush when first installing it. This
gives access with both hands to "jiggle" it into place.
19. Make sure the clips are pushed in and the MDA is seated properly.