Electronic Devices; Fundamental Precautions - Lippert R Série Manuel D'utilisation Et D'entretien

proceed to manual unclamping. Oscillating the driving arms of the lower step, move the steps (or step) manually until the
system is fully closed.
After having reached the closed position, screw the bolt or the eventual system of loosening located on the side opposite
the motor in order to lock the mobile parts.
Unclamping and manual operation from the closed step position: in this position, do not attempt to operate directly on the
knob, since actuating it would be difficult.
To effect manual unclamping, screw the nut (which fastens the knob) toward the motor (with the support of a n. 13 wrench).
The nut will go to buck against a spacer which in turn allows unclamping of the system.
MODELS: Art. 10856
Per eseguire lo sblocco manuale girare, con una chiave di 17mm, il bullone che fuoriesce dalla parte posteriore del gradino.
MODELS: Art. 10856 (R Series)
With the aid of a suitable tool, an M6x20 screw has to be screwed in the threaded hole positioned underneath the step.
After having completed this operation, the step will be opened and closed manually.
MODELS: Art. 10750 (R - S - T Series) - Art. 10751
Operate directly on the step's surface moving it "with caution" following the step's movement so that it's completely closed or
opened; the handling could be facilitated by moving the lever connected to the motor.
THIS OPERATION SHOULD BE CARRIED OUT VERY SLOWLY AND CAREFULLY IN ORDER
8.2 MOTOR PROTECTION SYSTEM WITH SHEAR PIN.
The various models of electric or electronic steps are equipped with a system for protecting the electric motor from mecha-
nical overloads that could act on the motor during operation.
MODELS: Art. 10570 – Art. 10574 – Art. 10575 – Art. 10576 – Art. 10577
Safety from overloads is obtained through an flexible steel pin with diameter 5 installed on the clutch between transmission
shaft and electric motor. The pin has been sized to easily withstand the operating load during movement of the steps (own
weight of the parts in motion). At the moment in which an excessive load weighs on the step during movement (e.g., if
someone walks up or down the steps while they are in motion), the pin breaks, safeguarding the motor.
MODELS: Art. 10750 (R, S, T Series) – Art. 10751
They have a friction system that restores automatically
THIS OPERATION COULD SERIOUSLY DAMAGE THE MOTOR
!
IN ANY CASE WALKING UP OR DOWN THE STEPS WHILE THEY ARE IN MOTION
OR IT ISN'T ON THE MECHANICAL CONTRAST IS PROHIBITED
The various models have been designed and manufactured in such a way as to reduce to a minimum or eliminate risks con-
nected with crushing and shearing. Note however that risks connected with movement of the steps are in practice nullified
by the fact that the crushing forces are limited..
!
DO NOT ACCEDE TO ANY PART OF THE STEP WHILE IT IS IN MOTION.

8.3 ELECTRONIC DEVICES

The various models of steps are equipped with some safety features actuated by electronic devices. The available security
systems depending on kind of step (electric or electronic) are the following:
• automatic closure of steps at the moment when the motor of the vehicle is started.
• system of non-opening during movement of the vehicle.
• warning light or buzzer signaling the condition of step open.
In addition, there is an electronic protection system which is actuated when the steps in motion are subjected to an exces-
sive load.
• The various safety devices must never be tampered with for any reason
• It is absolutely prohibited to walk up or down the steps while they are in motion
• Do not interfere with the steps while they are in operation, neither with objects nor even less with the hands
NOT TO CAUSE DAMAGES TO THE MOTOR.
DO NOT GET ON THE STEP WHEN CLOSED.

9.0 FUNDAMENTAL PRECAUTIONS

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