19
Move the spring locking screw from the locked position to the released
position.
The door leaf is free to close by means of the power of the spring.
Make sure that the door fully closes even when it is opened by a few
degrees.
If the leaf moves properly throughout its stroke, both when opening and
when closing, proceed with the electrical connections as described in
the Electronics section, in paragraph "Electrical connections".
Should the spring load have to be increased or decreased, instead, the
arm must be removed from the automation; for this operation, refer to
the next paragraph.
8) ARM REMOVAL
(for Neptis Plus NB-LET, NB-LETB, NB-SLT, NB-SLTB automations
only)
Strictly follow the steps described below to remove the arm;
in particular, only unscrew the tapered pin setscrew after the
spring has been locked.
Removing the tapered pin's setscrew can cause the pulleys
and gears of the automation to move, if the re-closure spring
has not been locked in advance.
Move your fingers or other body part away from the moving
components during this operation.
RESETTING THE PRELOAD VALUE
Before removing the arm, reset the preload value (factory settings). To
this purpose, manually move the leaf to the point where the red line on
the belt is aligned with the red mark on the pulley.
Spring lock
Move the spring preload locking screw from the released position to the
locked position, taking care to ensure that the screw is inserted into the
pulley.
TAPERED PIN EXTRACTION
Insert the Allen wrench (6mm.) into the tapered pin hole without
removing the arm rod.
Unscrew the arm setscrew, exerting a greater force in the final stage of
the operation to extract the tapered pin.
Repeat the steps described in par. 7.4, 7.5 and 7.6 to select
the spring re-closing force and to connect the arm.
PULLEY REFERENCE
BELT REFERENCE
LOCKED
