3.4 -
Mounting the gearmotor
If the surface it is to rest on already exists, the gearmotor must be
mounted directly onto that surface using appropriate means, e.g. ex-
pansion bolts. Otherwise, in order to mount the gearmotor:
01. Dig the foundations as indicated in fig. 4.
4
02. Prepare one or two cable ducts for routing the electricity cables
as in fig. 5.
5
03. Assemble the 4 anchor plates onto the foundation plate, placing
one nut under and one over the plate; the nut below the plate must
be tightened as in fig. 6 so that the threaded part emerges no more
than 40 mm above the plate.
6
04. Pour the concrete and before it starts to set, place the foundation
plate at the levels indicated in fig. 4; make sure that it is parallel to
the gate and perfectly level (fig. 7). Wait for the concrete to set fully.
6
7
05. Remove the 4 nuts above the plate and position the gearmotor;
make sure it is parallel to the gate, then hand tighten down the 4 nuts
with their washers (fig. 8).
8
06. Release the gearmotor as indicated in par. 3.5 - Manually releas-
ing and locking the gearmotor.
07. Fully open the gate, then rest the first part of the rack against
the pinion and make sure that the start of the rack corresponds to
the start of the gate as in fig. 9. Make sure that there is some play of
about 1÷2 mm between the pinion and the rack, and then fix the rack
to the gate using appropriate means.
9
08.
In order to avoid the weight of the leaf bearing on the gear
motor, it is important that there is some play of about 1÷2 mm be-
tween the rack and the pinion as in fig. 10.