8
KINKED OR TWISTED LOAD CHAIN
Kinked load chain should not pass through the chain hoist body. With multi-fall
models (2~5t rated load models) the load chain sometimes gets twisted by
the lower hook turning a somersault between hanging chains. (Fig.7) Such a
twist by somersault will not only lower the chain’s load supporting capability,
but will damage the load sheave or chain when the lower hook winds up near
the upper limit even if unloaded. Such a twist by somersault shall be corrected
before operating the chain hoist.
Figure 7
1.4. PROPER MOUNTING OF CHAIN BUCKET
1.4.1. HOW TO MOUNT THE BUCKET CORRECTLY
• The chain bucket must be mounted correctly. Do not operate the hoist without the chain bucket.
• The chain bucket should be mounted to the hoist with the chain on the no load side (under the operating element B) with less than
50 cm of load chain to avoid kinks and jamming of the load chain. Refer to the illustrations and mounting position.
Fig.8, Choose the right mounting position.
Fig.9, Don’t twist any hanging chain.
Fig.10, Cables should not go between any 2 of the 4 hanging links.
Figure 8
Figure 9
Figure 10
All the welded points of every other
links face the same direction
When the hook turns a somersault
between the pair of load chain...
The welded points of every other
links face a certain twisted direction
Turn the hook
somersault to make it
normal
