Tractel tralift TT Serie Manual De Instalación, De Utilización Y De Mantenimiento página 6

– Remarks about general overhaul (see chapter 4)
There is differing coefficient data for the ISO Groups that must be
adhered to in operation.
CAUTION!
The travelling gear is always classified as the same ISO Group as the
corresponding electric chain hoist.
NOTE
The ISO Group registration number of the electric chain hoist can be
found on the data plate.
The manufacturer will only guarantee the safety and lasting operation of
the electric chain hoist when used for applications that fall within its valid
ISO Group coefficient data.
Before the first start-up, the user must estimate according to the
features in Table 2-1 – Load collectives, which of the four types of load
is applicable to the use of the electric chain hoist during its whole service
EN
life. Table 2-2 – Operating conditions shows standard values for the
operating conditions of the ISO Groups depending on the type of load
and the time of operation.
Ascertaining the correct type of application for an electric chain hoist:
Table 2-1 – Load collectives
Load type 1
light
k < 0.50
k = 0.50
% of running time
Full load by way of an exception,
however, predominantly low loads.
k = Load collective (type of load)
Table 2-2 – Operating conditions
ISO Group according to ISO 4301-1
Load collective
1 - light
k < 0.50
2 - medium
0.50 < k < 0.63
3 - heavy
0.63 < k < 0.80
4 - very heavy
0.80 < k < 1.00
6
Load type 2
medium
0.50 < k < 0.63
k = 0.63
% of running time
Frequently fully loaded, however
continuously lightly loaded.
M3 M4
up to 2 2 - 4
up to 1 1 - 2
up to 0.5 0.5 - 1
up to 0.25 up to 0.5
Either the running time or expected type of load can be used as a basis
for ascertaining the correct type of application for the electric chain hoist.
CAUTION!
Before starting up the electric chain hoist for the first time, it must be
determined with which of the load types shown in Table 2-1 – Load
collectives the electric chain hoist is to operate. Assignment to a load
type or a load collective (k) applies for the entire operational life of
the equipment and may not be altered for operational safety reasons.
Example 1: Ascertaining permissible running time of the electric chain
hoist:
An electric chain hoist of the ISO Group M4 is to be used for medium
stress load tasks throughout its entire service life. This corresponds to
load type <3 heavy> (see Table 2-1 – Load collectives). According to the
values in Table 2-2 – Operating conditions, the electric chain hoist should
not be used for longer than 0.5 - 1 hour per working day.
Example 2: Ascertaining permissible load type:
An electric chain hoist of the ISO Group M5 is to be used for approximately
6 hours per working day, throughout its complete service life.
Consequently the electric chain hoist should be operated in accordance
with the characteristics of the load type <1 light> (see Table 2-1 – Load
collectives).
Load type 3
heavy
0.63 < k < 0.80
k = 0.80
% of running time
Frequently fully loaded, continuous
average loading.
M5
Average running time per working day [h]
4 - 8
2 - 4
1 - 2
0.5 - 1
Load type 4
very heavy
0.80 < k < 1.00
k = 1.00
% of running time
Regularly fully loaded.
M6 M7
8 - 16 over 16
4 - 8 8 - 16
2 - 4 4 - 8
1 - 2 2 - 4