Canon 4573C002 Operation Manual page 30

NOTE
If a drive unit fixing screw is damaged or lost, use a spare one.
If all spare screws are used and additional ones are required, contact Canon Inc. or Canon distributers & sales
representatives.
6 HOW TO ATTACH AND DETACH THE DRIVE UNIT
5
Set the zoom/focus operation change-over knobs of the
drive unit to MANU. side, set the iris operation mode
change-over switch to "M" side, turn each iris ring manu-
ally and check gear engagement.
6
Verify that the gear of the drive unit is engaged with the
gear of the lens and tighten the three fixing screws to the
specified torque to fix the drive unit.
* Tightening torque: 63 - 80 N•cm (6.4 - 8.2 kg•cm)
7
Mount the lens on the camera, connect the 12-pin cable,
switch the power on and adjust the mechanical end au-
tomatically on the display.
* For details on how to adjust the mechanical end auto-
matically, refer to "6-3 AUTOMATIC ADJUSTMENT OF
THE MECHANICAL END" on the next page.
E23