Thermo Scientific HM525 NX Operator Guide
57
Hand Wheel Lock
Before placing or removing a specimen on the specimen head, or adjusting the orientation, always ensure
that the mechanical hand wheel lock brake is engaged. The handwheel lock brake will prevent unintended
movement of the specimen head.
Activating the lock reduces the risk of being injured when adjusting the specimen head and/or the blade
carrier.
When the instrument is turned off, the mechanical hand wheel brake has to be
activated.
Mechanical Handwheel Brake
The mechanical handwheel lock acts as an additional safety device, especially when the instrument is
turned off. To mechanical handwheel lock can be activated by the lever on the handwheel.
To activate the mechanical Handwheel Lock.
•
Bring the handwheel handle into a 12
o'clock position.
•
The switch for the handwheel lock can
now be pressed forward into the locked
position.
Note
If the lever is not in the correct position to lock, keep the lever pressed and move the handwheel slowly forward and
backwards until the switch is locked.
•
Sectioning is not possible when the instrument is turned off or when the mechanical hand wheel
lock is activated.
•
To unlock the mechanical Handwheel Lock: Pull back the Handwheel Brake switch Lever.