30
A4.3.2 Secondary wire rope (S)
(1) BS/BSO secondary brake should be opened by
the primary wire rope under load. Otherwise push
and hold release lever (e3) in its vertical position
(use handle (e4) to ease the operation) (Fig. 55).
Fig. 56 Secondary Wire Rope Reeving
(D)
(s1)
TIRAK
®
TIRAK
®
X-series
T-series
Fig. 55 Opening of BS/BSO secondary Brake
(e4)
(2) Insert secondary wire rope at (D) and push through
until it is tensioned (Fig. 56).
(3) Above ground level fix a tensioning weight (s1) of
approx. 25 lbs. (10 kgs) to the lower end of the
secondary wire rope (Fig. 56).
This weight will help to pull the secondary wire
rope through the BS/BSO secondary brake and
avoid slack wire rope above the hoist, which could
be dangerous in the event of fall.
(4) Take precautions to make sure tensioning weight
(s1) will not damage property or create a hazard
by swinging freely.
A4.3.3 Primary Wire Rope End
After primary wire rope reeving through the hoist,
be sure to loop and clamp the free end of the wire rope
to prevent the rope from inadvertently unreeving through
the hoist.
Always tie this loop, using a fist grip clamp, when the
platform is at ground level (Fig. 57).
(e3)
Fig. 57
Loop at Free Primary Wire Rope End
WARNING:
AT EVERY SET-UP OR RE-RIGGING
check the wire rope length to en-
sure that it reaches the ground or
other safe level with about five
feet (1.5 m) extra for safety.
Secondary wire rope (S)
Bottom free end of wire rope
Fist grip clamp
