6
OPERATIONAL INSTRUCTIONS
V23C_09.13
SC4000 Pos 5
Drawing 5.4. Emergency-lowering system.
NOTE:
THESE ACTIONS ARE TO BE CAR-
RIED OUT BY AU THORIZED SERV-
ICE PERSON ONLY.
!
- evacuate all the persons working on
the platform,
- fasten the platform to the mast or
support it in a manner that ensures
its position after releasing,
- release the safety brake and bring
the platform to the bottom position.
Use dis posable technical means and
ex tra precautions.
if the voltage decreases or the control
system fails
- if the voltage decreases, push the
emer gency stop S6
- switch off the voltage using the main
switch Q2 of the platform eletric box
and wait for the re connection of the
voltage,
- if supply voltage cannot be re-
connected,
lowering can be done by using the
emergency-lowering system at the
end of platform´s lifting motor.
4. condition of the rollers,
5.
connection of the supply voltage ca-
ble to the motor
6. lead and condition of the supply
ca ble,
7. operation of the safety brake by press-
ing push-button DOWN on pendant
con trol box (motor should not op-
erate).
After carrying out these controls, switch
off the main switch Q2 on platform elec-
tric box and release the safety brake ac-
cording the instructions on chapter 4.
In case to the safety brake is engaged
due to damage of bearing element (e.g.
pin ion), it is prohibited to release it.
In such case following steps should be
taken:
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