Aleko AR 900 User Manual - Page 10

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6. Cut away any excess of the rack (Note: rack length must be longer than actual travel of the gate)

7. Thoroughly fasten the four nuts as well as spring washers onto expansion bolts tightly, enabling the

operator is firmly secured on the concrete pad during the whole gate travel.

Installation of the Limit Switch

Before install limit switch, make sure the gate operator is put in manual operation. (the clutch connected with

gear shaft is disengaged) and the mains power supply is disconnected.

Position the two Magnet Components approximately on the gate and move the gate by hand to fix them in

place.

Fit magnets bracket

Push the gate fully closed by hand. Locate and install the magnet bracket so that the operator will stop at the

desired close position when the close limit switch approaches it.

Push the gate fully open by hand. Locate and install the magnet bracket so that the operator will stop at the

desired open position when the open limit switch approaches it.

The magnet component with N pole outside must be installed at left side and the magnet component

with S pole outside must be installed at right side from the view inside of property.

Finally adjust the magnet to the proper position by moving the gate with the motor. The magnet should

be .39 - .59 "away from the magnetic limit switch. If it is too far away, the switch will fail to work. The distance

between the magnet and the opener should be 1/2" (12mm) with the opener cover on. Adjust the position of

the magnet until the positions of the opening and closing meet the requirement.

REV 12a