RUTHMANN 27409, Инструкция по эксплуатации и техническому обслуживанию

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7 Emergency control system
(Emergency Lowering)
7-8
RUTHMANN-Steiger
®
TB270
BA.GB.12-27409-05-07-FTA-jr
7.4 Emergency lowering after an interruption of the Steiger
movements through a „conditional emergency cut-off“
The movements of the Steiger have been interrupted through a conditional
emergency cut-off (safety cut-out). Conditional emergency cut-off can be
triggered off through:

inclination of the working cage by more than 10° to the horizontal
line (mercury ring switch),

considerable exceeding of the max. perm. load moment,

considerable exceeding of the max. perm. cage carrying capacity
(if cage overload detecting device is existing),

defective sensory elements, e.g.:

Angle sensor „boom“,

pressure sensor,

etc..
Now, in order to move the Steiger in its basic position (emergency lower-
ing) by means of the control panel in the working cage, it is possible to
bridge the safety cut-out if no emergency cut-off switches are actuated.
Danger!
A danger of tilting is existent due to boom movements,
which increase the load moment! Therefore always the
telescope must be retracted completely as first step.
When carrying out emergency lowering you have to take
special care!
If the working cage cannot be moved safely into a posi-
tion, in which a safe leaving of the working cage is pos-
sible, the fire brigade must be called for the rescue of
the cage crew.
Certain Steiger movements, released through the computer control, can be
carried out by the operating staff from the control stand in the working cage
and when actuating simultaneously the push button „bridge safety cut-out“.
The Steiger movements will be effected at a reduced speed.