Dea ROCK, Operating Instructions And Warnings

Page: 7 / 24

EN-5
4.5 Cementing via anchor bolts
• Introduce gravel (grain with diameter of approx. 22/32 mm) with thickness of approx. 30 cm, making sure it is compacted well to
prevent future “settling withdrawals”.
• Lay the layer of geotextile (300 g.) on the compacted gravel.
• Position a PVC pipe with diameter of 200 mm and length of 220 mm in the centre of the hole and
ABOVE the geotextile (the PVC pipe
is necessary to channel the rain water).
• Introduce concrete (RCK45 type) into the hole to a height of 200 mm, making sure that the pipe remains in the centre and escapes
by at least 20 mm.
Warning: the concrete casting must be level (check that the concrete base is level with the ground in order to obtain a good support for
the bollard).
Warning: make sure that the height from the base of the cementing just performed is 1000 mm at the road surface (Fig. 4c).
• Assemble the metal pit (Fig. 5) using the rivets supplied and fi x it to the secondary frame using the relative bolts supplied.
• Place the metal pit complete with secondary frame, making sure it is plumb. The upper level of the secondary frame must be
positioned 20 mm higher with respect to ground height (to limit the entry of rain water into the pit).
Warning: make sure that the metal pit is positioned correctly with respect to the direction of travel.
• Position the fl exible hose with diameter of 45 mm (for passage of the power supply and command cables) in the relevant pilot holes
of the formwork. The piping must be connected to the plant management and handling station.
• Introduce concrete (RCK4 type) all around the metal pit up to ground level and successively connect the projecting part to the road
surface.
Warning: make sure that the concrete casting is vibrated using suitable equipment in away to adhere correctly to the walls of the metal
pit and that the same remains above the ground level by at least 20 mm (Fig. 7).
WARNING All piping must be positioned with full respect of regulations in force.
4.6 Laying the traf fi c bollard (Fig. 8)
• Remove the cable cross platform from the structure by removing the protection caps and loosening the 4 underlying screws.
• Tighten 2 x M12 eye-bolts as indicated and lower the structure into the pit.
Warning: on lowering the structure, pay maximum attention not to pinch the power supply cable and to the position of the electrical box.
• Remove the eye-bolts and fi x the structure tightly to the metal pit structure using the 8 countersunk head screws provided.
• Re-position the cable cross platform in its seat and fi x it with the screws (and protection caps), which were previously removed (Fig.
9).
4.7 Release and manual movement (Fig. 10)
In the event of mains power failure, the bollard remains raised and the release device must be operated to lower it.
Operate as follows to do this:
• Unscrew the closure cap positioned on the head of the bollard.
• Insert the relevant key supplied, loosen anti-clockwise by approx. 1 turn and wait for the bollard to descend completely.
• To take the bollard back to working condition, turn the key clockwise.
WARNING Remember to tighten the cap on completion of the manual handling operations, so that the release device is always pro-
tected from water and dust.
WARNING The bollard may have uncontrolled movements during the release operation: pay maximum attention in order to prevent
every possible risk.