38
1 - M
ਮਲ਼ਮਨਹਤਣ
U
ਭਨਲ਼
Setup and Confi gurations
Dismantling a standard single unit installation with mast ties
4-
Remove all bridges installed, leaving
only one 5' (1,5 m) bridge at each cantilever
end
of the motorized unit.
5-
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.
WARNING
During dismantling, only mast sections can be loaded on the two 5' (1,5 m)
cantilevers attached to the unit. It is important to note that no other loads are
allowed on the bridges until the dismantling process is complete.
6-
Lower the motorized unit to base level, removing mast sections and mast ties on the
way down,
leaving two tie levels in place
. Refer to p. 85 of the
Mast and Mast Ties
section for instructions on how to remove and transport mast sections. Refer to p. 91
of the
Mast and Mast Ties
section for instructions on how to remove mast ties.
7- Mast sections must be stored and evenly distributed on each side of the mast
to ensure good balance
. There can be up to a
maximum of four mast sections on
each side of the mast at a time
.
A ninth mast section can be loaded on the link bridge of the motorized unit, as shown
in fi g. 1.51, p. 36. It is recommended to install an optional deck extension on one
of the fi rst cantilevers attached to the unit to facilitate the handling of mast sections
with the jib arm. The deck extension must be installed on the side
opposite
to the jib
arm, as shown in fi g. 1.51, p. 36. For information about the use and installation of
an optional deck extension, refer to p. 55 of the
Bridges
section.
If required, use a crane to remove mast sections from the two 5’ (1,5 m) bridges attached
to the unit to avoid any overloads. Refer to the
Load Capacities
section on p. 94 of
for more information about loads allowed on an installation.
8-
When
only two tie levels are remaining
, it is important to
proceed with extreme care
to
make sure that the stability of the motorized unit is not compromised during the operation.
4
R
B
WARNING
Before the start of dismantling operations
of a setup installed following
installation method “B”, it is
mandatory
to uninstall any equipment, accessory or
bridge, leaving
only one
5' (1,5 m) bridge attached at
each cantilever end
of the
motorized unit.
Once the stability of the motorized unit has been secured, proceed with the removal
of the last mast sections and tie levels.
9-
Remove any remaining loads (mast sections, mast ties) from the platform and make all
workers step down.
10-
Remove all planking, push in all outriggers and secure in place. Remove and store all
guardrails.
11-
Remove the 5' (1,5 m) cantilevers attached at each end of the unit.
12-
If the unit used in the setup is an electrical motorized unit, disconnect the power cable from
the motorized unit and the power source.
This operation must be performed by a
certifi ed electrician
. Store the power cable properly.
13-
If the unit is to be stored for any signifi cant length of time, refer to p. 132 of the
Transport,
Storage and Maintenance
section for instructions on how to properly store an F2 Series
motorized unit.
Before removing the last two tie levels
, it is
critical
to make sure that the
base
confi guration
of the motorized unit is
consistent with the tie schedule used
for the
installation of that motorized unit.
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
.
