Berner 419832 Instruction Manual Download Page 10

Page: 10 / 150

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1 - Nozzle holder.

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2 - Nozzle / Hood.

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3 - Air distributor ring / diffuser.

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4 - Electrode.

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5 - Torch body, handgrip and cable.

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WARNING! Before carrying out any work on the torch
leave it to cool for at least the complete “post air” time

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Compressed air filter (Fig. G).

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EXTRAORDINARY MAINTENANCE
EXTRAORDINARY MAINTENANCE OPERATIONS SHOULD BE
CARRIED OUT ONLY AND EXCLUSIVELY BY SKILLED OR AUTHORISED
ELECTRICAL-MECHANICAL TECHNICIANS AND IN COMPLIANCE WITH
THE TECHNICAL STANDARD IEC/EN 60974-4.

WARNING! BEFORE REMOVING THE MACHINE PANELS AND
WORKING INSIDE IT MAKE SURE THAT IT HAS BEEN
SWITCHED OFF AND DISCONNECTED FROM THE MAIN

POWER SUPPLY.
If checks are carried out inside the machine while it is live, this may
cause serious electric shock due to direct contact with live parts.

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8. TROUBLESHOOTING

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MOST COMMONLY OCCURRING CUTTING DEFECTS

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a - Insufficient penetration or excessive slag formation:

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b - Arc transfer failure:

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c - Interrupted cutting arc:

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