Nelson Nelweld 4000, Operation And Service Manual

Page: 9 / 69

Nelweld Operations and Service Manual
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1.2.6 Electrical Danger
When working with any electrical device, it is a
good idea to ensure that a safe working
environment is present at all times. Such a safe
environment is not present when:
• In confined spaces with electrically
conductive walls,
• The work area/room is wet, damp, extremely
dry, or hot,
•
Freedom of movement on electrically
conductive parts is restricted (i.e. metallic
ladders, scaffolding, mounting rails, floor
plates),
• Working conditions entail being in a confined
space between or on electrically conductive
parts.
Under these working conditions, the following
protective measures must be taken:
•
The welder must be adequately protected
against electrical dangers by using insulating
underlay or intermediary layers,
• Any insulating materials used must be applied
in such a way that touching conductive parts,
damp walls, and damp flooring is eliminated,
• If the use of insulating materials is not
possible due to an increase in danger, such as
risk of falling or special room conditions,
work must at least be done in dry, undamaged
working clothes.
1.3 Intended Use
The relevant standards and accident prevention
regulations were taken into account when
developing the Nelweld series of stud welding
power supplies. The welding unit was built
according
to the latest technological
developments and is operationally reliable.
Despite this, dangers can originate from a
Nelweld power supply if it is operated by
untrained people or not used as intended.
• The Nelweld stud welding power supply line
is designed to accommodate welding in both
the Electric Arc and Short Cycle welding
processes.
• The specifications in this operations manual,
with regard to safe welding, testing, and
qualification practices, must be observed.
•
Care should be used when operating a
Nelweld power supply in residential or
commercial areas, as damage to external
electrical and electronic devices may be
caused
by electromagnetic interference
generated by the welding arc.
•
Nelweld units may only be configured with
those unit components that are specified
throughout this operations manual, or by a
Nelson
customer service or technical
representative. Configuration with
components manufactured or distributed by
other manufacturers, or other arbitrary
structural alterations to the system, are not
allowed.
•
The welding unit may only be operated with
spare parts and accessories specified in this
operations manual or by a Nelson technical
representative.
• The specified maintenance and inspection
routines,
as well as replacing worn
components, have to be implicitly observed.
• Nelweld units must never be used to attempt
pipe thawing.
Furthermore, the observance of general and
particular safety advice throughout this operations
manual, as well as relevant accident prevention
regulations, falls under intended use.
Usage exceeding the limits set forth in this
manual are inadmissible and possibly dangerous.
The manufacturer is not liable for damage
resulting hereof; the operator alone bears the risk.
1.4 Guarantee and Liability
Guarantee and liability claims in cases of physical
injury and property damage are excluded if they
are due to one or more of the specified reasons
below:
• Non-intended use of the Nelweld welding
unit,
• Non-compliance with the operating
instructions of the Nelweld unit.