22
fi g. 1.27
fi g. 1.28
fi g. 1.29
1 - M
OTORIZED
U
NIT
Setup and Confi gurations
STANDARD CONFIGURATION
NON STANDARD CONFIGURATION
Method of
installation of
tie levels
Progressive
Pre-installation
Progressive
Pre-installation
Pre-installation
Tie levels every
20' (6,1 m)
30' (9,1 m)
10' (3 m)
20' (6,1 m)
20' (6,1 m)
Standard
cantilever
bridges
Installed and
used
Installed but not
used
Installed and
used
Installed but not
used
Not
installed
Standard
bearing bridges
Installed and
used
Installed but not
used
Installed and
used
Installed but not
used
Installed but not
used
5 to 8 planks
Installed and
used
Not
installed
Not
installed
Forward
extension (
MPI
)
Installed and
used
Not
installed
Swivel bridge
Installed and
used
Not
installed
Hoist
Installed and
used
Installed but not
used above last
tie level
Installed but not
used above last
tie level
Weather
protection
Installed and
used
Installed but not
used *
Monorail
Installed and
used
Installed but not
used *
* Installed but not used
: accessory is installed but can only be used when tie levels have been completely installed
to top of work.
Weather protection tarps must be installed only when tie level installation is complete.
The installation of an M2 Series setup with mast ties (standard or non standard confi guration)
can be achieved using a
progressive installation method
or through complete
pre-
installation of tie levels
. The confi guration required by the layout plan and the schedule
of installation of tie levels will determine which method of installation is more appropriate.
Use the tables in fi g. 1.27, fi g. 1.28, fi g. 1.29 and the
Mast Tie Schedule
table on p. 70 of
the
Masts and Mast Ties
section to guide the selection of the proper method of installation.
PROGRESSIVE INSTALLATION OF
TIE LEVELS
Standard
bridges
installed and
used
Standard bridges
can be installed and
used for workers and
material
Equipment
installed and
used
5 to 8 plank
confi guration,
forward extension
bridge and swivel
bridge can be
installed and used
for workers and
material
Accessories
installed and
used
Hoist, monorail and
weather protection
can be installed and
used
9
d
COMPLETE PRE-INSTALLATION OF TIE LEVELS TO THE TOP OF THE
WORK
Standard
bridges
installed but
not used
Any required and allowed standard bridges (cantilever or
bearing) can be installed but cannot be used for material
or workers until tie levels are complete to the top of the
work. For example, mast sections can be loaded on the
motorized unit only
,
not on bridges
.
Standard
cantilever
bridges
must not be
installed;
bearing bridge
can be installed
but not used
Any required and allowed standard cantilever bridge must
not be installed until tie levels are complete to the top of
the work.
Any required and allowed standard bearing bridge can be
installed but not used until tie levels are complete to the top
of the work.
Equipment can
be installed but
not used
Any required and allowed additional equipment – 5 to 8
plank confi guration, forward extension bridge and swivel
bridge – can be installed but cannot be used until tie levels
are complete to the top of the work.
Accessories
installed but
not used
Any required and allowed accessory – monorail and
weather protection (structure only) – can be installed but
cannot be used until tie levels are complete to the top of
the work.
Weather protection tarps must be installed only when
tie level installation is complete.
Hoist installed
but not used
above last tie
level
If required and allowed, the hoist can be installed and used
to load mast sections only but cannot be used above the
last tie level installed.
Installation of confi gurations with mast ties
A
B
C
A
B
A
B
C
