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19
5.1
INSTALLATION OF OUTRIGGER TIEBACKS - CONTINUED
Tieback instructions for the secondary wire rope if installed.
Installation of outrigger tiebacks is mandatory!
Fig. 15
Secure tieback to rear shackle on the roof beam, and to the tieback anchor on the roof.
Tieback wire ropes must have the equivalent strength to the hoisting ropes and must be
installed without slack.
NOTE: 1)
Tieback may also be installed from the tip of the roof beam.
2)
When using the two tiebacks, one must be on each side of the beam.
Secondary wire rope tieback. Note: only
one required within 25°. Two are
required if between 25° and 50° of the
beam. Tiebacks are not permitted
beyond 50°.
TIEBACK
REQUIRED
TIEBACKS NOT ALLOWED
IN THIS AREA
TIEBACKS NOT
ALLOWED IN
THIS AREA
TWO TIEBACKS ARE REQUIRED IF
BETWEEN 25° TO 50° OF CENTERLINE.
ONE MUST BE ON EACH SIDE OF THE
CENTERLINE.
ONE TIEBACK IS REQUIRED WITHIN
25° OF THE CENTERLINE.
FRONT OF SKYBEAM
SKYBEAM
FRONT OF SKYBEAM
SKYBEAM