Instructions / Assembly

16
14.0 Mechanical classification (grade)
The JET TS-series hoists have been designed for grade 2m in the FEM regulations (FEM 9.5.11). See table 5.
The life and safety of the electric hoist can only be guaranteed when the equipment is operated within its
prescribed grade.
Average daily operating time and total operating time are determined by load distribution.
Load Spectrum
(Load distribution)
Definitions
Cubic
mean
value
Average daily
Operation time
(hours)
Total operating
time
(hours)
1
(light)
Mechanisms or parts
thereof, usually subject to
very small loads and in
exceptional cases only to
maximum loads.
k≦0.50
4 - 8
12500
2
(medium)
Mechanisms or parts
thereof, usually subject to
small loads but rather
often to maximum loads.
0.50<k
≦0.63
2 - 4
6300
3
(heavy)
Mechanisms or parts
thereof, usually subject to
medium loads but
frequently to maximum
loads.
0.63<k
≦0.80
1 - 2
3200
4
(very heavy)
Mechanisms or parts
thereof, usually subject to
maximum or almost
maximum loads.
0.80<k
≦1.00
0.5 - 1
1600
% operating time
Load spectrum 1
% operating time
Load spectrum 2
% operating time
Load spectrum 3
% operating time
Load spectrum 4
Table 5