ESAB MultiPower 460 Pulse Manual de instrucciones descargar pdf (Pagina 39)

SECTION 5

MAINTENANCE

If this power source does not op-

erate properly, stop work imme-

diately and investigate the cause

of the malfunction. Maintenance

work must be performed by an

experienced person, and electri-

cal work by a trained electrician.

Do not permit untrained persons

to inspect, clean, or repair this

power source. Use only recom-

mended replacement parts.

Be sure that the branch circuit or

main disconnect switch is off, or

electrical input fuses are removed,

before attempting any inspection

or work inside the power source.

Placing the power switch in the off

position does not remove all power

from inside the power source.

Failure to replace worn or dam-

aged cables may result in a bare

cable touching a grounded object.

The resulting electrical arc may

injure unprotected eyes and will

present a serious fire hazard.

Body contact with a bare cable,

connector, or conductor may re-

sult in severe electrical shock,

causing serious burns or death.

5.0. CLEANING

Periodically, remove the cover from the power source and blow accumulated

dust and dirt from the air passages and interior components by using clean low

pressure air. The frequency of cleaning required depends upon the environment

in which the power source is used.

It is imperative that all air passages be kept as clean as possible in order to

allow adequate air flow to provide proper cooling.

After cleaning with low pressure air, check for and tighten any loose hardware,

including all electrical connections. Check for frayed and/or cracked insulation

on all power cables and replace if necessary.

A. INSPECTION AND SERVICE

Keep the power source dry, free of oil and grease, and protected at all times

from damage by hot metal and sparks.

1. FAN MOTOR

Keep the fan motor free of accumulated dust and lint.

2. TRANSFORMER

Other than periodically cleaning the dust and dirt from the transformer, no

maintenance is required. Ensure that only clean, dry, low pressure air is

used.

3. WIRE FEEDER CONTROL CIRCUITS

These circuits are protected by two 10 amp circuit breakers mounted in the

front panel. If these open, the contactor and wire feeder will not operate.

4. OVER TEMPERATURE PROTECTION

If the power source reaches an abnormally high internal temperature, the

thermal protection will deenergize the contactor circuit, shutting down the

power source but leaving the cooling fan on. After the power source has

cooled to a safe level, the thermal protection will automatically reset. While

de-energized, the contactor and wire feeder cannot be operated.

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ESAB MultiPower 460 Pulse Manual de instrucciones Pagina 39

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