Zoomlion ZCC1100, Operator'S Manual, Page: 26 / 291

Operator’s Manual for Crawler Crane
D
e
s
c
rip
tio
n
of
C
ran
e
2-4 ZCC1100H Crawler Crane
Where,
Qi
P
is the i value appearing in the whole service life of the crane.
max Q
P
is the max. load value appearing in the crane
’s entire service life.
i
C
is the crane
’s load cycles corresponding to
Qi
P
load in the cran
e’s entire service life.
T
C
is the entire number of the crane
’s load cycles in the crane’s service life.
The examples of load spectrum coefficient are as follows:
10% of crane
’s load cycles in the crane’s entire service life is under the maximum load.
40% of crane
’s load cycles in the crane’s entire service life is under 40% of the maximum
load.
50% of crane
’s load cycles in the crane’s entire service life is under 10% of the maximum
load.
“Load” is to be understood in this connection as the sum total of load, load handling
devices and lifting tackle (e.g.: load + load hook + sling rope).
Under these circumstances, assuming that maintenance work is carried out properly, the
theoretical service life can be more than 20 years. Harder operating conditions lead to a
reduction in the service life.
If the user uses the crane according to other operating class and load collective class, the
corresponding entire number of crane
’s load cycles and load spectrum coefficient are
adjusted, which result in a change of crane service life.
CAUTION
Some components (for example, wire rope, pulley and bearing) are not designed for the
entire service life of the crane, but must be replaced after a certain amount of time.
For reference only.
Operators manual should be consulted and adhered to.