Vinten Radamec Free-d - Manual (Page 7)

Vinten Broadcast Ltd free - d ™ Installation Manual V1.4.4
Page 7 of 46
Remove the two hex-socket screws that secure the module to the mounting
block adapter plate. Take care not to damage any internal components when
removing the module. Slacken the two screws that fasten the focus section to
the zoom section.
Remove the two screws and lock washers from the mounting block, then fit the
block to the lens. Do not over tighten the mounting screws. Check that both
zoom and focus elements are not obstructed and move freely after fitting the
mounting block.
CAUTION
IT IS ESSENTIAL THAT ONLY THE SCREWS AND WASHERS SUPPLIED ARE USED.
INCORRECT LENGTH SCREWS CAN PERMANENTLY DAMAGE THE LENS.
Fit the module in position the mounting block with the zoom section in mesh
with the zoom gear ring of the lens and estimate how far its gear is out of
mesh with the zoom gear ring. Remove the module and extract the spacer
shim from between the adapter plate and the mounting block. Peel off an
amount from the spacer (each shim is 0.05 mm, 0.002 inch thick) that is equal
to, or less than, the amount estimated to bring the gears into mesh. Re-fit the
module and repeat the procedure until the gears mesh correctly.
NOTE
CORRECT MESH IS VERY IMPORTANT AS TIGHT SPOTS WILL RESULT IN POOR PERFORMANCE.
Check the mesh at several points while rotating the lens gear ring from end to
end and ensure that a small amount of backlash can just be felt at the tightest
point.
Adjust the mesh of the focus section with the focus gear ring of the lens and
tighten the two screws that fix it to the zoom section. Check the mesh at
several points whilst rotating the focus gear ring from end to end and ensure
that a small amount of backlash can just be felt at the tightest point. Readjust
the focus mesh until this is satisfactory.
Do not lubricate the output gear/lens ring. Check end-to-end operation of both
zoom and focus. When satisfactory, re-fit the encoder module cover.