36
fi
g. 1.51
1 - M
ਮਲ਼ਮਨਹਤਣ
U
ਭਨਲ਼
WARNING
If any motorized unit was used in an unlinked confi guration, it is
mandatory
to make sure that the trolley link is put back into place
before the start of
dismantling operations
.
Dismantling a standard single unit installation with mast ties
The following dismantling steps can be used for a
single unit confi guration
installed following method of installation “A”
. Refer to p. 20 of this section
for more information about method of installation “A”.
A
1-
Prepare the installation as described in the safety guidelines for dismantling an F2 Series
installation above.
2-
Bring the motorized unit to the top of the work, verifying mast bolts and mast ties on the
way up. Make sure that all mast bolts are properly tightened, that all anchor bolts are in
place and in good condition and that mast ties are properly tied to the face of the work.
SAFETY comes fi rst
. It is essential that the
dismantling
of an F2 Series motorized
unit setup be carried out by
qualifi ed erectors/dismantlers
under the supervision
of a
competent person
and be performed with the same care and precaution taken
during the installation.
It is mandatory to make sure that the motorized unit installation remains stable and secure
throughout the dismantling maneuvers. For the defi nition of a qualifi ed erector/dismantler,
refer to p. 7 of the
Performance and Safety
section.
Safety guidelines for dismantling an installation
1-
Make sure that all the equipment necessary for a safe dismantlement of the installation
is on hand (slings, crane or rough terrain forklift, etc., as required).
2-
Inspect all safety devices (overspeed safety device, inclinometers in a bearing bridge
confi guration, emergency descent, etc.) and make sure that they are working properly.
3-
It is important to note that any installed
monorail must not be used
during dismantling
operations.
4-
Tarps and shields used for weather protection
must be removed before the start of
dismantling operations
.
5-
Perform every step in the daily inspection checklist. Refer to p. 134 of the
Transport,
Storage and Maintenance
section for more information about the daily inspection
checklist.
6-
If any motorized unit was used in an unlinked confi guration, make sure the trolley link
is put back into place
before the start of dismantling operations
.
7-
Make sure to choose the dismantling method appropriate for the installation.
Dismantling an installation
d
d
d
d
n
n
n
n
n
n
n
Setup and Confi gurations
Optional deck
extension
Mast section
loaded on the
link bridge
Jib arm
Four mast sections
on fi rst cantilever
attached to unit
Four mast sections
on fi rst cantilever
attached to unit
