Leica M844 - Releasing the brakes

Preparation before surgery
38 M844 / Ref. 10 713 294 / Version 01
7.11.4 Releasing the brakes
WARNING
Risk of injury due to downward movement of the surgical
microscope!
X
Complete all preparations and adjustments to the stand
before the operation.
X
If settings need to be altered during the operation, rst
swing the microscope away from the operating eld.
X
If the microscope needs to be re-equipped, do this
before the operation.
X
Before re-equipping, always lock the swing arm.
X
Do not use the handles or remote brake release when
the instrument is in an unbalanced state.
1
2
Unless they are individually configured for the current user,
the brakes are released by turning the handles as follows:
X
Turn backwards (2) and hold: Selected brakes are released
X
Turn forwards (1) and hold: All brakes are released
The handles can be individually assigned up to 4 functions
for each user in the "User Settings" menu. The "All Brakes"
function must be selected at least once (see chapter9.4.8).
The brakes can also be released using a remote brake
release.
REMOTE BRAKE
RELEASE
X
Press and hold the remote brake release button.
All brakes on the stand are now released.
7.11.5 Raising and lowering the CT40 ceiling mount
The CT40 ceiling mount can be raised and lowered electrically.
These functions can be controlled via buttons on the remote control
unit.
Move telescopic arm to the desired height:
X
"Up" key: Raise the telescopic arm.
X
"Down" key: Lower the telescopic arm.
12
Under permanent-load conditions, the telescope may not be
operated for more than 1 minute in a 10 minute period.
After 2 minutes of uninterrupted operation, thebuilt-in
temperature switch deactivates the motor of the Leica CT40
ceiling mount.
If the "Up" or "Down" key stucks, please switch opposite
direction to stop movement.
If the Up" and "Down" keys are pushed at same time the
motor will not move.
7.11.6 Test of emergency stop function of the CT40
ceiling mount
X
Move the CT40 down.
X
Press both Up" and "Down" keys at the same time.
The CT40 must stop.