Description
10
5.52.541.00.01.01
4.3 Functions
The lifting gear and motor-driven trolleys are moved by pressing the buttons on the control switch. The
spring-operated brake which is integrated in the lifting motor prevents the load from being lowered
automatically after releasing the control keys.
Hand geared trolleys are moved to the left or right by pulling one of the two stands of the endless hand
chain.
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NOTICE!
The best protection against functional failures in case of extreme environmental impact is the regular use of
the equipment.
If the hoist is not used very often, we recommend to carry out a test run at least once a week and to switch
on the motor several times during this test run.
In our experience, this will prevent the brake from sticking.
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4.4 Important
components
4.4.1 Hoist
motor
Pneumatic motors - operating pressure max. 6 bar
4.4.2 Hoist
gear
AK 4 - 8 precision spur gear
AK 9+10 precision planetary gear
All gears are fitted with a vent screw.
4.4.3
Trolley gear motor
Combination of worm gear and pneumatic motor.
Closed design - ventilation not necessary.
4.4.4
Overload protection and emergency end stop
Hoist with overload protection.
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AK 4-8 slipping clutch
The overload protection is set in the factory according to the regulations; it is possible to adjust it later (see
chapter repair and maintenance).
The slipping clutch prevents the lifting of a load that is too heavy by slipping through. In the standard design
the slipping clutch also takes on the function of an emergency end stop when the load is at the highest and
lowest position.
AK 9 + 10 - Mechanical Overload protection
Spring package with tappet valve
AP 9 + 10 Pneumatic overload protection - as option
By pressure reducing valve
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WARNING!
Never exceed the nominal load!
It is prohibited to use the emergency stop as operational limit switch.
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4.4.5 Load
chain
Special quality load chain. As the individual components of the chain drive are matched precisely to each
other, only original chains may be used.
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NOTICE!
For use in the food industry, HADEF can supply a special lubricant.
