Dea TRAFIK/N Instrucciones De Uso Y Advertencias página 17

3.4 How to assemble the boom
WARNING All balancing operations must be carried out with the gearmotor set from the factory and with the control board turned off.
Before starting the boom assembly operation, check its length according to the width of the transit area and, if necessary, cut it to
the required size using suitable equipment.
WARNING Once you have decided on the length of the boom to use, refer to the table on page. 100 to achieve an optimal balance (also
depending on the accessories provided).
WARNING The use of the barrier with a boom exceeding 5 meters, should be provided only with fi xed support or movable foot. Failure
to comply with this point, may cause dangerous situations for property or people and lead to damage of the barrier mechanics.
To assemble the boom, proceed as follows:
• Fit the boom holder to the shaft, making sure that the pin is inserted correctly in its seat (Fig. 7);
WARNING: Before mounting the boom holder, make sure the side of the barrier on which you are operating is correct.
• Assemble the omega as shown without overtightening the locking screws and nuts (Fig. 8);
• Assemble the boom on the omega up to the stop, insert the fi xing screw in the hole and tighten the nut (Fig. 9);
• Adjust the tilt of the boom by trying to compensate for any unevenness of the ground by raising or lowering the omega directly on the
boom holder by taking advantage of the adjustment slots provided (Fig. 10);
• At the end of the adjustment, lock the fi xing nuts fi rmly;
• Fix the metal protection cover to the boom holder (Fig. 11);
• Cover the output shaft on the opposite side from the mounting with the appropriate protective cap (to prevent accidental dropping of
the cap caused by continuous movement or vibration of the barrier, it is recommended to apply silicone inside before inserting it on
the shaft). (Fig. 12)
3.5 Spring assembly and balancing
Follow the procedure as indicated:
• Manually lift the boom and bring it to the opening position; (Fig. 13)
• Unscrew the 2 lock nuts and remove the spring retainer; (Fig. 14)
• Unscrew and remove the locking screw; (Fig. 15)
WARNING: With the locking screw removed, the boom is totally free and disengaged from the internal mechanics.
• Accompany the boom beyond the opening position until the screw rests on the stop; (Fig. 16)
• Check that the spring assembly is hooked to the correct hole; (Fig. 17)
• Insert the spring, its retainer and tighten the 2 nuts without overtightening them; (Fig. 18)
• Use the balancing table on p. 100 and apply the indicated preload to the spring; (Fig. 19)
WARNING: The dimension for spring balancing should be measured as shown in Fig. 16 and with boom in the extra-stroke
position at opening.
• Check the correct balance of the boom by manually accompanying it in closing and checking that it settles at about 45°; if this does
not happen, increase or decrease the preload applied to the spring until it reaches 45°. (Fig. 20)
• Once the adjustment is complete, tighten the 2 spring retainer nuts fi rmly;
• Return the boom to the open position and tighten the locking screw fi rmly;
3.6 Limit switches
All TRAFIK/N operators are equipped with electromechanical limit switches whose tripping must be adjusted for each installation. For
adjustment, follow the procedure below:
• Loosen the locking dowel placed on the 2 limit switch cams (Fig. 21) so that they can be rotated;
• Bring the barrier boom to the open position and adjust the opening cam so that the microswitch presses at that point; tighten the
locking dowel.
• Repeat the previous procedure bringing the boom to closure and adjust the respective cam by tightening the locking dowel.
• Carry out a complete opening and closing manoeuvre, checking that the limit switches click correctly into the pre-established position;
alternatively proceed with a second adjustment.
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