HADEF 59/18 Installation, Operating And Maintenance Instructions page 9

 Overload protection
Hoists with overload protection protect the hoist by a slipping clutch from damage by overload. When the
slipping clutch operates, lifting of the load is stopped. Lifting is only possible again after the load has been
lowered and reduced to nominal load.
4.4.1 Additional safety features
Additional safety mechanisms for increased functional and operation safety.
 Release mechanism
Closes the brake for unintentional or
unforseeable opening of the load pressure
brake.
Even small traction forces that increase linear
are safeguarded reliably with the patented
HADEF-System!
 Locking mechanism
Locks the hoist completely in case of failure of:
Brake
and/or
Ratchet pawls
and/or
Release mechanism
DANGER!
When the locking mechanism is activated, the hoist must no longer be operated. It must be overhauled by a
"qualified person"!
 Chain guide device to feed in the chain
The chain is feeded into the hoist correcty even
for overhead work. Twisted chains are
aligned before they run into the hoist on the
chain sprocket wheel.
 (1) Chain lock (as option)
Adjustable, additional safety device
downtime with load or tension.
Prevents reliably
unintended through the hoist.
 (2) Chain end fastening
Grouted undetachably.
Prevents reliably
unintended through the hoist.
Captive, pressure-grouted, protection against
losing or demounting of the chain lock.
5.52.159.00.01.04
for
that the chain runs
that the chain runs
Illustration 4
Illustration 5
Illustration 6
Illustration 7
9