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16/05/2019
R06.0
5.3 Replacing springs or spring packages
(See Figure 5)
This procedure is only necessary when:
-
the oscillating behaviour of the NVD has changed
-
a spring is broken
-
the NVD is to be retooled for a different product
WARNING
Before removing the casing, unplug the power cable!
1.
remove the casing (1)
2.
Remove the screws (2) from the spring package (3) to be replaced.
3.
Reassemble the spring package.
The relevant spring cross section for the NVD can be taken from Chapter 2.3.
NOTE
If a spring was broken, the number and thickness of the springs
must correspond to the old package.
NOTE
Opposite opposed spring packages must contain the same
springs!
4.
mount the spring package and tighten the screws (2)
5.
check the air gap between the magnetic coil and the anchor bolt and reset if
necessary
(see chapter 5.5)
6.
replace the casing (1) and carry out a test run