
8
5.52.131.00.01.09
4.2 Design
HADEF Electric chain hoists, with low headroom
design and monorail trolleys with integrated
hoisting gear.
Lifting units with electric motors.
Trolleys by hand via chains or by pushing and
also by electric motors.
Type 28/06ER - Table 1 - 0,5t
Type 28/06EE with electric driven trolley
Type 28/06EH with hand geared trolley
Type 28/06ER with push travel trolley
Type 28/06EE - Table 2-40t
4.3 Functions
The lifting gear and motor-driven trolley are moved by pressing the buttons on the control switch. The spring-
pressure brake installed in the electric motor of the lifting gear prevents the independent lowering of the load
after the push button has been released.
By using a frequency converter, the speed is infinitely variable.
Hand geared trolleys are moved to the left or right by pulling one of the two stands of the endless hand
chain.
In combination with push travel trolleys the trolley is moved by pushing or pulling the load or, without load, by
pulling the load chain.
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.
4.4 Important
components
NOTICE!
All hoists are fitted with high-quality lifting gears of the reliable AK series.
4.4.1 Motor
Type of chain hoist
Electric motor
66/04 AK
28/06E
29/06E, 29/06EEL Big Bag, 29/06E-Synchro
90/09EX, 91/09EX