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Picture 20. RELAX -mechanism minimum angle is 5°
Rigidity of the spring can be adjusted by the tension nut under the spring (picture 21). Shortest permitted length for the
spring is 175 mm when blade is released, then the spring is pre-strained by 25 mm. At the factory the spring is pre
strained by 15 mm.
Picture 21. Adjusting the spring
Adjustment nut
Locking nut