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it is necessary to keep an eye on the overall
condition of the machine.
For instance, for Schwarze-Robitec’s control
systems from previous generations prior to the
year 2000, there is often only a limited availability
of spare parts and upgrades are no longer possible.
If such machines are mechanically refurbished, the
control technology will still pose a risk of failure –
a general overhaul including a replacement of the
control system is therefore a more sensible option.
But should a client’s production requirements
change fundamentally, then a new machine is in
order. Just as with a car, installing a new engine is
not worthwhile if this is then shortly followed by a
gearbox failure – or if the owner now needs a van
instead of a station wagon.
8
TUBE NEWS ● FEBRUARY 2020
Tube bending machines are also similar to cars
in terms of the intervals between necessary
maintenance work: The car of an everyday
commuter – equivalent to a machine working at
high capacity in 3-shift operation – will be in for
its next inspection quicker than that of the casual
weekend driver. The frequency with which tube
bending machines require maintenance work
varies depending on their utilization, workload
and regular maintenance. It is therefore the
combination of many factors that determines
whether a general overhaul is a reasonable option:
the time, the condition of the machine and the
performance requirements in production.
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