Nelson Nelweld 4000, Operation And Service Manual

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Nelweld Operations and Service Manual
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CAUTION
ELECTRIC SHOCK
CAN KILL
• Only qualified
personnel should
perform this
installation.
• Turn the input power
OFF at the disconnect
switch or fuse box
before working on
this equipment.
• Turn the power switch on the Nelweld power
source to “OFF” before connecting or
disconnecting output cables or other equipment.
• Do not touch electrically “hot” parts.
• Always connect the Nelweld power source’s
grounding terminal (located on the welder base
near the reconnect panel) to a good electrical earth
ground.
3.2 Extent of Delivery
Included in the extent of delivery of a Nelweld
power
supply are the following unit
components:
•
One (1) Nelweld welding unit, as specified
at the time of order,
• One (1) set of operating instructions,
“Nelweld 4000 and 6000 Operations and
Service Manual”
3.3 Extent of Dispatch
Unless otherwise agreed, the type of packing
complies with HPE Regulations, which were
laid down by the Federal Association of
Wooden Materials, Pallets, and Export Packing.
3.4 Inspection of Incoming Materials
The operability of welding units are tested prior
to dispatch. On arrival, the welding unit has to
be checked for damage, as well as for the
completeness of the parts within the extent of
delivery. Any possible transport damage and/or
missing parts must immediately be made known
to Nelson Stud Welding, Inc. or the authorized
forwarding company.
3.5 Intermediate Storage
If a Nelweld welding unit is not operated
immediately after delivery, it must be put into
storage in a secure location. The location must
sufficiently protect the unit from dust and
moisture, and maintain the appropriate storage
temperature, seen in Section 3.1.4, -58°F to
185°F.
3.6 Locating the Power Source
The primary concerns when finding an
appropriate location for a Nelweld unit are
safety and cooling ability.
The unit must be located on a horizontal,
vibration-free, non-slip floor space. The unit
may topple over if it is tilted more than 10
degrees. Nelweld units cannot be stacked.
The load-carrying capacity of the floor space
should be equivalent to at least double the
weight of the welding unit. Additionally, the
location should provide proper protection
against the intrusion of liquid, and should not be
located on pipelines.
Place the welder where clean cooling air can
freely circulate into the machine through the
front louvers and out through the case rear vent.
Make sure the unit is not placed up against a
wall such that the rear vent is blocked. A
clearance of 3 feet (1 m) should be allowed
between the Nelweld unit and any other
obstruction.
Entry of dirt, dust, or any foreign material that
can be drawn into the power source should be
kept at a minimum. To help minimize
contamination, the power source is designed
with an on-demand cooling fan. This internal
fan remains off until cooling is required. Use of
filters on the air intake to prevent dirt from
building up restricts airflow. Do not use such
filters. Failure to observe these precautions can
result in excessive operating temperatures and
frequent, unanticipated shutdowns.