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©
2019
Columbus McKinnon Industrial Products GmbH
Nominal dimensions and wear limits are shown in the following table. If the limit values are exceeded, immediately replace the
components.
Force-limit factor Of Overload Protection Device
The force-limit factor according EN 14492-2:2006 amounts
ф
DAL=1,35. The maximum force occuring when the rated capacity limiter
operates will be calculated as:
FLIM = (
φ
DAL x mRC + mH - mRC) x g
φ
DAL = 1,35
mRC = Rated capacity of the hoist [kg]
mH = Hoist load [kg]
Hoist load mH: Load which includes all the masses of a load equal to the rated capacity of the hoist, the hoist medium and the fixed load
lifting attachments, e. g. hooks, grabs, magnets, lifting beams, vacuum lifters.
g = Acceleration due to gravity (9,81) [m/s2]
ATTENTION: The settings of the overload circuit-breaker should be defined only by a competent person.
ATTENTION: The unit is ready for operation during this activity and there is a risk of physical injury caused by rotating parts.
ATTENTION: The result of the check and adjustment of the overload circuit-breaker must be recorded in the test log of the
device.
Testing and Adjustment of overload device (Fig. 26)
• For a suspended test load, the adjusting nut is to be turned in the clockwise direction until the test load is lifted.
ATTENTION: The max. operating time of the overload circuit-breaker is 60 seconds. Then, the unit has to cool down to a room
temperature (min. 20 minutes).
• Assembly takes place in the reverse sequence.
b
h
a
