NOTE: You may need to raise the motor to allow the gear rack to fasten
properly to your gate bottom rail, so check this first by placing a piece of gear
rack on top of the motors cog alongside the gate.
Open/close the gate to ensure no fasteners are obstructing the rack.
There are 3 typical ways to fasten the motor to your concrete.
Option 1: If your gate is manufactured with 100 x 50mm rectangular bottom
rail such as the BMGI low profile model and sits about 40mm off the ground
with the wheels, you can bolt the motor directly to the concrete.
Hint: Option 2 and 3 are good for raising the motor to allow cables to be
installed freely under the motor so you do not need to be too accurate with
your cable location.
Option 2: If your gate is fitted with the standard wheel that raises the gate to
approx. 50mm from the ground you can use high mounting blocks to lift the
motor. Position these spacers under the left and right sides of the motor and
fasten to concrete.
Option 3: new concrete pad. If your gate is above 50mm off the ground you
can use the mounting plate supplied with the motor and the 4 threaded rods,
1 in each corner to act as pylons. The rods can be pressed into your concrete
pad. You can now line up the mounting plate. Once the concrete pad has
dried, you can now assemble, starting with the motor, washers and fasten
together with 4 more nuts.
Installing the gear rack to the gate:
For your gate to function smoothly you will need to install the gear rack
correctly. The outcome is to have a 2mm gap between your
gear wheel
and
the valley of the gear rack throughout the length of the gate. Temporarily
raise the motor by another 2mm using bolt-washer spacers under the motor
mounting bolts.
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