GBD TOP291E Instrucciones Para La Instalación página 29

TOP EVO
7 END STOPS OF THE LEAVES ON THE GROUND -
For the correct operation of the actuator, use the end stops both in opening and closing.
The end stops of the leaves must prevent the actuator rod from arriving to the limit switch and must be
positioned so as to keep a stroke room of the rod of about 5-10 cm, in order to avoid any possible operation
anomaly.
Moreover it is recommended to use some amortised / rubber limit switch stops, in order to attenuate shock.
8 MOUNTING DIMENSIONS -
If it is not possible to maintain the dimensions in table [4], consider the following to calculate the measurements:
• For b = 90° ® A + B = Cu
• For b > 90° ® A + B < Cu (b max 110°)
• Quota A must always be bigger than quota D.
• The difference between A and B must not exceed 50 mm. Larger differences cause an uncostant
movement of the leaf (the tractive/thrust force and the movement speed vary during the manoeuvre).
• If the leaf is very thick, with consequent difficulty in respecting the dimension F, it is possible to increase the
dimension D and dimensions A and B must also be increased by the same amount, maintaining anyway
the rules indicated above.
9 HYDRAULIC SLOWDOWNS -
TOP291ER(/S), TOP391ER(/S), TOP441ER(/S) operators are equipped with hydraulic slowdowns.
The hydraulic slowdown occurs during the last 45mm of rod stroke, both in opening and closing.
WARNING:
The intensity of the slowdown is predetermined at the factory and cannot be modified, but some little
Ÿ
adjustments are still possible, properly acting on the thrust adjustment valves À and Á 13
ŸIt is of fundamental importance to comply with the installation quotas and take into consideration what said
above to make use of the hydraulic slowdowns.
ŸThe effectiveness of the hydraulic slowdown is affected by the ambient temperature, at low temperature
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