12.2
Spring tensioning
BARRIER INSTALLED ON THE RIGHT - seen from the inspection hatch side
MAGGIORE TENSIONE
HIGHER TENSION
+
BARRIER INSTALLED ON THE LEFT - seen from the inspection hatch side
1
MAGGIORE TENSIONE
HIGHER TENSION
A
APPROXIMATE EXAMPLES
Each installation is unique and the tension of the springs must be checked and tested.
1
MEDIA TENSIONE
MEDIUM TENSION
A
2
+
B
C-3
2
MINORE TENSIONE
LOWER TENSION
B
MEDIA TENSIONE
MEDIUM TENSION
3
-
C
3
MINORE TENSIONE
LOWER TENSION
-
C
A-1
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