Label NEPTIS/LE, Installation Manual

Page: 10 / 40

10
8.0 ARM CONNECTION
Warning: strictly comply with the steps described when fixing the arms. Only remove the spring preload locking screw when
specified in the instructions. Removal of the spring preload locking screw causes the pulleys and gears in the actuator to
move. Keep your fingers and other parts of the body well away from the moving parts during this operation!
Only carry out this operation after having disconnected the actuator from the electric power source
After having fixed the actuator and arm as shown in the diagrams on the previous pages (or using the drilling template in
scale 1:1 supplied with each arm), connect the arm to the output shaft of the actuator as described in the following steps:
8.1 Choice of the spring load
The closing spring will have been preloaded in the factory with a
standard value, indicated by the red mark on the belt which matches
the red mark on the pulley (see figure alongside). Make sure that this
condition has been complied with when the product is installed. If
this is not the case, comply with the instructions in chapter 3) on page
21 in order to bring the preload back within the standard value.
Although the preload is fixed, the power exercised by the spring
during the closing phase can be selected in the following way:
Connect the arm to the output shaft with the wing fully open so as to
load the spring to the minimum.
Connect the arm to the output shaft with the wing fully closed so as to
load the spring to the maximum.
Connection in an intermediate position loads the spring to a
proportionally intermediate value.
Make sure that the puller nut screwed into the tapered end is
positioned fully downwards, as shown in the figure.
Make sure that the hole plug has been fitted on the frame.
Connect the tapered end of the arm to the projecting pin.
Insert the fixing screw and tighten it strongly.
8.2 How to fix the tapered end of the arm
8.3 Spring release
Warning:
When this operation is carried out, the components and door arm
could start to move. Keep your fingers and other parts of the body
well away from moving parts during this operation, or keep the wing
blocked manually.
Move the spring locking screw from the locked position to the
released position, as described in the figure alongside. The door is
now free to close by means of the spring. Make sure that the door
closes completely even when only open to a few degrees. If this fails
to occur, repeat the operations described in this chapter, but
increase the closing force as illustrated in section 8.1. Comply with
the instructions in the following section to disconnect the arm.
BELT
REFERENCE
PULLEY
REFERENCES
FREE