CAB HYDRO HD.18 AC Manual De Instrucciones página 14

NOTE: Vent plug.
Next to the vent a dead hole has been provided where the plug and gasket can be kept for future use.
On removing the plug and during the first operator manoeuvres a small quantity of oil may leak out. This is perfectly
normal and should not be considered a fault.
Manual and emergency gate operation
If there is a power failure or malfunction the wings can be moved by hand as follows:
Models with hydraulic lock (i.e. Bc/Bac):
• Use the special key supplied with the operator to open the protective cover of the release mechanisms (Fig.7).
• Turn the knob anticlockwise to disengage the automation. (Fig.8)
• The wing can now be opened and closed manually.
• To engage the automation turn the knob anticlockwise.
• Lock the cover shut.
Models without hydraulic lock (i.e. hydro Sr 20):
Since these models are reversible, simply open the electric lock and the wing can be moved manually.
Slowly push the wing by its outer end, accompanying it all the way to the gate stop.
adjusting the thrust
The operator is equipped with anti-squash by-pass valve that limit the thrust on the wing when it meets an obstacle.
Once the obstacle is removed the wing will continue its stroke for the work time set by the control unit.
• Open the protective cover and use a 6 mm hexagonal key to adjust the thrust (Fig.9).
• There are two adjustable valves, one governs the opening thrust (Open), the other governs the closing thrust (Close).
• Turn the valve towards + to increase the thrust on the wing and vice-versa (i.e. towards - ) to reduce the thrust.
cauTiON! This adjustment is directly linked to the safety level of the automation.
Make sure that the thrust applied on the wing complies with statutory regulations.
The protective covers
After adjusting the slowdown the covers can be replaced (Fig.10).
Take great care in ensuring that the drain hole faces the ground.
Wiring
The operator is supplied with the wiring cable already installed and wired (Fig.11). To connect it to the control unit see the
diagram and instructions for the control unit.
The power cable is best protected by a 12mm spiral sheath that has to be inserted in the coupling provided.
an earth connection is compulsory.
Topping up/changing oil
The oil level in all hydraulic operators must be periodically checked.
To top up the oil first shut-off the mains power to the system and then remove the two screws on the terminal block,
which also acts as oil cap. The level must never rise above the rim shown in Fig.12. Only use Hydro OIL.
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