Routine Maintenance

D-1		MAINTENANCE		D-1

SAFETY PRECAUTIONS

WARNING

Have qualified personnel do the maintenance work. Always use the greatest care when working near moving parts.

If a problem cannot be corrected by following the instructions, take the machine to the nearest Lincoln Field Service Shop.

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ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or electrode with skin or wet clothing.

•Insulate yourself from work and ground.

•Always wear dry insulating gloves.

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EXPLODING PARTS can cause injury.

• Failed parts can explode or cause other parts to explode when power is applied.

•Always wear a face shield and long sleeves when servicing.

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See additional warning information throughout this operator’s manual.

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The Multi-Source needs no routine maintenance. The fan bearings are sealed units.

PERIODIC MAINTENANCE

Periodically the machine may be cleaned with low pressure compressed air to insure that all cooling pas- sages are open and that conductive foreign material has not built up inside.

MACHINE CALIBRATION

SPECIFICATION

The Multi-Source digital display is controlled by a cur- rent sensing circuit on the Control board. The display reads 100 when machine output is a little over 40 kW. To recalibrate the display, the machine output may loaded with Multi-Weld welders or resistive grids or a combination of both to obtain an output of 533 Adc as read by a calibrated standard ammeter. Trimmer resistor R49 may be adjusted to cause the display to read 100.

MULTI-SOURCE