RFP Inst -Warn (Rev. 02/11/19)
Page 11 of 14
P/N 230418
2.
To Adjust the Location of the Re-Direct Lines Away from the Anchors:
a.
Pull the lifeline through the lifeline prusik from the ladder side until the Re-Direct line attached to the lifeline is at the
desired location on the roof and tighten prusik (Fig. 84).
b.
Using Section T below, tie an overhand knot in the tail of the lifeline behind the prusik. Note: The overhand knot is used
to maintain the position of the prusik while there is slack in the line and the lines are being moved into position.
c.
Pull the Re-Direct line through the anchor prusik from the ladder side of Re-Direct line to form slack in the Re-Direct
line and tighten prusik (Fig. 85).
d.
Again, using Section T below, tie an overhand knot in the tail of the Re-Direct line behind the prusik. Note: The
overhand knot is used to maintain the position of the prusik while there is slack in the line and the lines are being
moved into position.
e.
Move to the opposite side of the structure and pull on the lifeline to remove slack.
f.
Follow Section E
–
H above to complete set up.
V.
Tying the Overhand Knot:
1.
Form a loop in the tail of the lifeline / redirect line just behind the prusik (Fig. 86).
2.
Bring the loop around in front of the doubled rope (Fig. 87).
3.
Then bring loop behind the doubled rope and into the loop formed by step 2 (Fig. 88).
4.
Pull knot tight (Fig. 89).
Re-Direct Attachment
Point on Lifeline
Tail of Lifeline
Tail of Re-
Direct Line
Fig. 82
Fig. 83
Tail of Lifeline
Tail of Re-
Direct Line
Fig. 84
Fig. 85
Ladder Side of Lifeline
Re-Direct Attachment
Point on Lifeline
Ladder Side of Lifeline
Fig. 86
Fig. 87
Fig. 88
Fig. 89
Ladder Side of Lifeline / Re-Direct Line
