AC C E S S O R I E S
Page 55
In the case of a control hose length exceeding 10 m,
the reaction times of the lever controls increase
significantly.
Consequently, a booster unit is generally installed on
the motor for controls E, F and FI, enabling normal
reaction times.
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, corres-
ponding 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
and
(double fall) the clamp
must be positioned 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 lower illustration
on page 44.
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 50).
AT T E N T I O N !
Never allow the chain to pile up in the
chain box.
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,
lubrication of the chain is particularly impor-
tant in order to prevent it from piling up and
falling out. Do not install longer chains when
changing chains.
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C H A I N B OX
B O O S T E R U N I T
