Tweco FP-82 User Manual

Page 26

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OPERATION

4-4

Manual 0-2870

10. Complete cutting operation.

NOTES

If the torch is lifted from the workpiece while the
torch is activated, the main arc will stop and the
pilot arc will automatically restart.

At output settings over 40 amps, control circuitry
in the power supply automatically reduces output
current to 40 amps if the torch tip contacts the
workpiece.

11. Release the torch switch.

a. Main arc stops; Pilot arc stops.

If torch is activated during post-flow, the pilot
arc will immediately restart. If torch is within
1/4 inch (6.4 mm) transfer distance to
workpiece, the main arc will transfer.

12. Gas will flow for 10 seconds (post-flow).

a. Gas flow stops; GAS indicator turns OFF.

13. Place the ON/OFF power switch to OFF (down)

position.

a. AC Power indicator turns OFF; Fans turn OFF.

14. Place the main power disconnect to OFF (open).

a. Main AC power is removed from the system.

For information on cutting techniques, cutting problems,
cutting speeds, cut quality, etc., refer to the torch manual
supplied with the torch.

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