Installation; General; Receiving; Working Place - ESAB LHJ 750 Manual Do Usuário E Pecas De Reposicao

4

INSTALLATION

4.1

General

The installation must be performed by a professional trained and qualified.
WARNING!
This product is designed for industrial use. In domestic environment this product
may cause radio interference. It is the responsibility of the user to take suitable
precautions.
Note: connect the equipment to the power supply network with a system impedance 0.210 ohm
or lower. If the network impedance is higher, there is a risk of lighting devices present failures.
4.2

Receiving

When you receive a LHJ 750, remove all packaging which involves the equipment and check for
possible damage which could have happened by handling. Any complaints as to damage in
shipping must be directed to the carrier company.
Carefully remove any obstacle to the cooling air.
NOTE!
In case a LHJ 750 is not installed immediately, keep it in the original packaging or
stock it in a dry and ventilated place.
4.3

Working place

To have a safe and efficient operation many factors must be considered to determine where the
welding machine should be installed. Proper ventilation and cleanliness are necessary to cool
the equipment and for the operator's safety.
It is necessary to leave some room around the LHJ 750 with at least 700 mm width for ventilation,
operation as well as preventive or corrective maintenance.
Installation of any device to filter ambient air reduces the air volume available for machine
refrigeration and can cause internal components overheating. Installation of any filtering device
non authorised by the supplier cancels equipment warranty.
4.4

Power supply

The requisites for voltage supply are indicated in the nominal board. LHJ 750 is designed to
operate with three-phase 220, 380 or 440 V in 50/60 Hz. They must have an independent
feeding line with full capacity to assure its best performance and reduce possible welding
failures or damage caused by other equipment such as resistance welding machines, impact
presser or electrical engines, etc.
For power supply of a LHJ 750 the operator can use the supplied input cable (4 conductors - 3
feeders and 1 grounding) or another one similar links with desired length. Be sure it has 4
conductors - 3 feeders and 1 grounding. In any situation power supply must be through a
properly dimensioned exclusive switch with protection fuses and circuit breakers.
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