25
7200790 Service Manual for the HELION
®
XENION
®
Surgical Lighting System GB
8 Testing the Servomotor for the HELION M/M+ / L/L+
Figure 02
8.2
8.2
8.2
8.2
8.2
TTTTTesting the servomotor
esting the servomotor
esting the servomotor
esting the servomotor
esting the servomotor
Dismantling the focus unit:
1. Unlock the central hand grip
2
by means of the
unlocking device
1
and remove it.
2. Undo the three screws
3
and remove the focus
unit
4
.
3. Swivel the two lamps
5
onto the middle axis rep-
resented by the dashed line.
Fitting the focus unit:
4. Insert the focus unit
4
into the lamp so that both
the plug connectors
7
are aligned, then activate
the lamp.
Functional test:
5. Remove the focus unit
4
from the lamp again.
If the two lamps
5
are still on the middle axis
represented by the dashed line:
• check if the position of the cables
6
is preventing
the lamps
5
from swivelling,
• Test the connection of the servomotor to the elec-
tronics.
Replacing the focus unit (servomotor):
6. If the two lamps
5
are still on the middle axis
represented by the dashed line:
• the servomotor is defective.
• Replace the entire focus unit
4
.