Locking/Unlocking The Handwheel; Installing The Footswitch Dummy (Instruments With Cutting Motor) - Leica CM1950 Operating Manual

6.3.1 Locking/unlocking the handwheel

12 o'clock
position
6 o'clock
position
Fig. 15
1
2
Fig. 16
Centering the Handwheel (Optional)
Fig. 17

6.3.2 Installing the footswitch dummy (instruments with cutting motor)

Fig. 18
Leica CM1950 – Cryostat
Only rotate the handwheel when the refrigeration system is on and
the cryochamber is cold!
Always lock the handwheel prior to making modifications to the
knife or specimen, changing the specimen, or taking a break!
To lock the handwheel, move its handle to the 12 or 6 o'clock position. Press
the lever (1) fully outward; gently rock the handwheel until the locking
mechanism clicks into place noticeably.
To release the handwheel, press the lever (2) on the handwheel toward the
cryostat housing.
An important safety device on the cryostat is the feature for center-
ing the handwheel in motorized sectioning mode.
To do so, pull out the handwheel's handle and position it in the middle of the
handwheel. The handle automatically engages in this position.
• The footswitch dummy must be installed on the outer right side of the
instrument (see page 16, General overview) if no footswitch (optional) is
used.
If the red LED in the E-STOP field in control panel field 3 is illuminated, either:
• emergency-stop function active, or
• footswitch dummy (optional footswitch) connected incorrectly or not at all.
6. Installation
23