Leica OH4, Service Manual, Page: 179 / 264

Preparation for operation/Use
37 Leica M525 OH4 / Ref. 10 714 367 / Version -
Positioning on the operating table
Warning 3
Risk of injury through surgical microscope moving down!
➩
Never balance or re-equip the instrument over the
field of operation.
➩
Always lock the Leica M525 OH4 in position before re-
equipping it.
➩
Balance the Leica M525 OH4 after re-equipping it.
➩
Do not release the brakes when the instrument is in an
unbalanced state.
The Leica M525 OH4 can be positioned easily on the operating
table and offers a variety of possibilities for operations on the
head or spinal column.
The M525 OH4 achieves this large range of positions through its
very long and high swing arm.
➩
Release the footbrakes (see page 35).
➩
Move the Leica M525 OH4 surgical microscope carefully over
to the operating table by the handle and into the required
position for the operation.
Positioning options:
➩
Set footbrake.
➩
Plug the footswitch into the stand and position it.
➩
Plug the power cable into the stand.
➩
Connect the equipotential bonding to the stand.
Attaching sterile controls
Sterilizable covers can be fitted on the rotary buttons on the
Leica M525 OH4 surgical microscope.
Covers for rotary buttons
Use the covers also when you use sterile disposable
drapes.
The controls will be more grippy.
➩
Fit steam-sterilizable covers on the light field diameter adjust-
ment knob and the working distance adjustment knob.
➩
Use steam-sterilizable covers also when using accessories.
Drape for footswitch
Packaging the footswitch in a plastic bag protects it
against dirt.