27
Be sure to use compatible connecting devices, e.
g. a 1/2 in. anchor shackle or similar with adequate
strength and safety factor. Secure it.
Distance (a) between the wire ropes:
approx
1
1
/
2
in. / 40 mm.
CAUTION:
Secondary wire rope anchoring must be
connected to a tie back
(Fig. 42).
(4) Insure that the anchor points of the wire rope
are directly above the position of the hoists (Fig. 17 on
page 12).
WARNING
:
Improper spacing is dangerous and could
cause failure of the support system.
(5) Check that wire rope tip is to be welded round
(Fig. 18 on page 12).
A4.3 Wire rope reeving
NOTE:
Ensure both wire ropes hang parallel
from the suspension point.
A4.3.1 Primary wire rope (P)
(1) Open the BSO secondary brake by pushing
down the control lever (e1) until it locks (Fig. 43).
Push and hold release lever (e3) in its vertical
position (use brake release lever (c4) to ease the
operation) to ease insertion of primary wire rope.
CAUTION:
Check that wire rope exit (C) is not
blocked in any manner.
Fig. 41 Wire Rope Anchoring
Anchoring
device
Fig. 42 (principle drawg.)
min. 1/2 in.
anchor
shackles
Installation
level
a
Fig. 44
Primary Wire Rope Reeving
(Principle drawing valid for all tirak
™
seires)
Tie back
Secondary
wire rope
(e3)
(e1)
Closed
(e1) OPEN
(e3)
(c4)
Fig. 43 Opening of BS/BSO secondary Brake
(2) With gloved hands slide the rope through release
lever hole and push it through the BSO second-
ary brake at (A) into the hoist rope inlet (B).
Push it inside, and press UP button, until the wire
rope reeves itself automatically and exits at (C) on
the other side (Fig. 44).
d) Let the primary wire rope run through until it is ten-
sioned.
Never load the wire rope exiting from (C), by
applying a weight to, or tensioning.
(B)
(C)
Exit wire rope
Must not be loaded!
(c4)
(e1)
(e3)
Entrance
wire rope
(P)
(A)
