
System Two LED Installation and Service Manual (1003385 Rev. C)
Page 31
Section 4
Mounting the MD21/MD21+ Spring Arm
Figure 9: Mounting the MD21/MD21+
The Figure shows the MD21 Spring Arm [3] and the
MD21+ Spring Arm [4] without and with covers. The
Spring Arms have different geometry. The
installation procedure is identical. The end stop
②
must be mounted for all Spring Arm versions with
cables.
Electrical shock hazard
The Spring Arm with cables
③
must be fitted with an
end stop
②
(twist protection) which restricts the swivel
range of the Spring Arm. If the end stop
②
is not
mounted, the cables are twisted off and the Arm
System is energized. Contact with energized
components present danger to life from electrical
shock;
Check that the end stop
②
is mounted to the
Spring Arm.
For the MD21+ [4] the end stop
②
from the
accessories must be mounted.
The Spring Arm must not be mounted without an
end stop
②
Only for the MD21 with cables
③
or optionally for
versions without cables
③
1. Check that the end stop
③
is pre-assembled on
the Spring Arm pivot
①
.
The Spring Arm with cables
③
must not be
mounted without the end stop
②
.
If the end stop
②
is not included in the
accessories, contact Customer Service.
Only for the MD21+
1. Place the end stop
②
onto the Spring Arm.
The end stop
②
can be rotated by 180°.
When rotating the end stop
②
, the end stop area
of the Spring Arm is rotated by 180°.
If the end stop
②
is not included in the
accessories, contact Customer Service.
*** Risk of the Monitor Arm dropping ***
If the 2 securing segments
②
are not properly
mounted, there is a risk of the Spring Arm with the
Monitor Arm/Cradle dropping and causing serious
injury. Check the 2 securing segments
②
are securely
in place.