Maintenance overview
5.4 Measures required for monitoring the winches
16.11.2018
Maintenance manual 3 302 756 en 5 - 21
GMK6400
5.4 Measures required for monitoring the winches
H
Also observe the information on the general inspection of the hoists;
à p. 8 - 16.
These measures for monitoring the winches (hoists) were compiled by the
German Machine Builders' Association (VDMA) and are to be used for all
mobile cranes according to the German
Accident Prevention Regulations for
Winches, Hoists and Tractor Machines, BGV D 6 (VGB 9
) and BGV D 8 (VBG 8).
5.4.1 Theoretical service life
The theoretical service life is determined according to certain operating con-
ditions and a theoretical total operating time assumed by the design engi-
neer when calculating and dimensioning the winches of your truck crane.
The power unit group M 3 and the load spectrum L1 (Km = 0.125) are gen-
erally given for truck cranes in assembly mode, resulting in a theoretical
service life of 3.200 hrs. (ISO 4301/1, FEM 1.001, DIN calculation basis for
power units).
s
S
The theoretical service life is not the same as the real (actual) service life of
a winch!