For various areas of application, a chain box enhances
operational safety, i.e. when a chain which is hanging
down could become caught up with the load.
JDN chain boxes are available in various sizes, corre-
sponding to the chain lengths.
AT T E N T I O N !
Do not exceed the permissible filling
capacity. Danger of chain dropping.
AT T E N T I O N !
Loads must not be moved against the chain
box during lifting. If necessary, attach a
clamp to the chain.
The clamp must be attached above the load hook so
that it functions as a preliminary end stop. With the
(dual chain) the clamp must be posi-
tioned as far as necessary downwards on the reeved
chain in order to support the bottom block (stationary
chain).
In addition, a spacer must be attached to the opposite
(moving) chain above the buffer in order to relocate the
stroke limiter. Please contact us, if required.
For greater clarity, see the illustration on the right
on page 52.
In all cases, a clamp is attached in the 10th chain link
of the unloaded chain end so that a length of chain
remains in the chain box when the bottom load hook
position is reached. Thus, the chain cannot run next to
the chain box during subsequent lifting (see section
Removing and installing chain,
page 57).
AT T E N T I O N !
Never allow the chain to pile up in the
chain box.
The chain must only enter the container via
the chain drive. If it falls out of the contain-
er, e.g. during transportation, it must be run
out completely on the load hook side and
then run back into the container via the
chain drive, in the air hoist operating posi-
tion.
After installing the chain box, lower the load hook
to the bottom position once.
Then activate lifting movement and run the
complete chain into the chain box.
DA N G E R !
During operation with the chain box, lubrica-
tion of the chain is particularly important in
order to prevent it from piling up and falling
out.Do not install longer chains when chang-
ing chains.
Furthermore, hazards arise due to rusty
chains when operating with chain boxes,
as the chain can form a heap and fall over
the edge of the container rim. In addition,
rusty chains are subject to extreme wear.
If the hoist has been transported with the
chain in the chain box, the chain box must
be emptied manually before initial operation
(if necessary, remove the chain box from the
hoist). The entire chain must then be allowed
to run to the load side and, subsequently, be
driven back into the chain box. The hoist
must be kept in a hanging position during
this procedure.
C H A I N B OX
powered by air !
AC C E S S O R I E S
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