16.7.2
CONTROLS TO
OPERATE THE CRANE
GR2_45»60_3_4
16.7.2
Temporary
OVERIDE-REACTIVATION for the crane
functions
with standard distributor
- In case of an electrical failure or of the appearance of the signal “ALARM”
on the display B of the control panel of the lifting moment limiting device:
Firstly remove the protection guard. Then unscrew the fixing screws (13 mm
hexagonal spanner).
On the distributor it has been installed an electro-valve with a manual locking func-
tion (fig. 22) which allows to reactivate all the crane functions in case of absence of
the electric power. Only in these conditions it is permitted to remove the lead seal
which protects the device. Push the button and turn it into the clockwise sense (fig.
22a pos. 1-2); the button stays in stable and closed position.
(!)
When the electric power is restablished, remember to put the button
in its original position, turning it into the anti-clockwise sense.
(fig. 22a pos. 3-4)
(!) ATTENTION (!)
Activation of the reactivation button.
This activation prevents the operation of the lifting moment limiting devi-
ce, consequently, the operation under such conditions can involve an
overload condition. In such an emergency condition (where the lifting
moment limiting device has been disabled), the operator, who is respon-
sible for the machine safety, must:
-
carefully consider the manoeuvres required to return to normal working
conditions: it is however compulsory to effect the re-entry of the exten-
sion booms at first,
-
calmly and carefully assess the type and scale of the hazards arising
from these manoeuvres and the possible reaction of the crane (tipping
over, frame overload, uncontrolled fall of the load due to a hydraulic
system overload etc.);
-
make all movements as slowly as possible to reduce the dynamic
overload to the minimum.
After such emergency operations and prior to re-use of the crane, you must
immediately go to FASSI authorised Center for testing the structure and re-
sealing of the device.
16.7.3
OVERIDE - REACTIVATION lever for the crane
functions (with Danfoss distributor)
- In case of an electrical failure or of the appearance of the signal “ALARM”
on the display B of the control panel of the lifting moment limiting device:
Firstly remove the protection guard. Then unscrew the fixing screws (13 mm
hexagonal spanner).
On the distributor it has been installed an emergency tap lever (fig. 23) to be
used in the event of a black-out, electrical or hydraulic malfunctions.
Only In these situations it is permitted to remove the lead seal placed on the
tap lever and place it in the closed position.
(!)
When the electric power is restablished, remember to put the button
in the opened position.
fig. 22
fig. 22a
fig. 23
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