Ceiling and wall attachment
Dr. Mach
Lamps and Engineering
8.2 Adjusting the spring force
The spring arm is correctly adjusted when the lamp remains in position at every set height and can be
moved more easily upwards than downwards.
It is only possible to balance the weight, when the distance between ceiling and bearing journal exceeds
40cm. For low ceilings and consequently short suspension tubes, the drilled nut in the articulated arm
described below, which is required for the balancing procedure, is not visible. The procedure for balanc-
ing the weights must in this case be carried out by Dr. Mach or someone authorised by Dr. Mach.
Should you discover, that the light no longer remains at its set height, proceed as follows:
8.2.1 Standard spring arm
Note:
Maximum additional load at spring arms:
Spring arms are equipped with different springs
to compensate the lamp / device weight.
To adjust the spring force make sure that the spring
arm with the lamp / device can come to rest in any
desired position.
• A hole 3 is located at the position marked by
detail X.
• Position the spring arm 4 with the lamp / device
approximately 10° above horizontal.
• Insert Allan key (width 5, included in the scope
of supply) into the hole 3.
If the spring arm drops, the spring force is too
low:
- Rotate the adjustment screw to the left (counter
clockwise) in the + direction.
If the spring arm rises, the spring force is too
high:
- Rotate the adjustment screw to the right
(clockwise) in the - direction.
If the spring arm with the lamp / device cannot
come to rest in any desired position after the
spring force has been adjusted, the springs
must be replaced by a service technician.
Hole 3
4
10°
X
3
-
+
Width 5
59500001 Edition 06 11.03.2003 / Bak Page 36/48
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