26
A4. Wire Rope
4.1 Wire rope speci
fi
cation
(see pages 7 and 11)
as shown in Fig. 39, proceed as follows:
– Install heavy duty thimble with a minimum of three
(3) J-Type (Fist Grip) Clamps (Fig. 40).
– Apply
fi
rst clamp approximately 7" (18 cm) from thim-
ble. Tighten nuts moderately.
– Attach second clamp as close to thimble as possible.
Leave nuts loose.
– Attach the third clamp half-way between
fi
rst and
second clamp, leaving the nuts loose. Take up wire
rope slack.
– Tighten nuts evenly on all clips (approx. 30 ft-lbs.
torque) as speci
fi
ed by the clamp manufacturer.
WARNINGS
:
a) Retighten after the wire rope is
loaded for the
fi
rst time
b) Inspect fastening periodically.
I n u s e , w i r e r o p e s w i l l s t r e t c h a n d
reduce in diameter.
Retighten all “Fist Grip” nuts periodically.
(3) Anchor the wire rope ends (Fig. 41) to a rigging device,
which complies with all relevant safety requirements.
Figure 40
Wire Rope Termination
by Fist Grip Clamps
Figure 39
Wire Rope Termination
by Swaged Fitting
Fist Grip Clamp
Heavy duty
thimble
Heavy duty thimble
Ferrule
(Sleeve)
A4.2 Wire rope rigging instructions
CAUTION:
Be sure to use wire rope according to
speci
fi
cation
(see pages 7, 11)
, with the
diameter (d)
(Fig. 37)
marked on the ti-
rak
™
nameplate for both the PRIMARY
and the SECONDARY wire rope.
(1) RIG FROM TOP.
You should have enough wire rope to reach to the
ground or other safe level with about
fi
ve feet (1.5 m)
extra for ensuring safety.
CAUTION:
Always unreel and reel the wire rope in a
straight line
(Fig. 38)
to prevent kinks,
which make it unusable for the hoist.
(2) If the wire rope is not equipped with a swaged
fi
tting
Figure 37 Checking Wire Rope Diameter “d”
Incorrect
CORRECT
Figure 38 Wire Rope Handling
d
