Forney 325P Manual De Instrucciones página 18

• Once started, the cutting arc remains on as long as the trigger is presed, unless the torch is
withdrawn from the work or torch motion is too slow. Keep moving while cutting. Cut at a
steady speed without pausing. Maintain the cutting speed so that the arc lag is about 30°
behind the travel direction (Fig. C).
• Adjust the torch speed so sparks go thru the metal and out the bottom of the cut.
• Pause at the edge (end of your cut) until the arc has cut completely through the work piece.
If sparks are being blown upward and back at the torch head, your torch travel speed is too
fast, decrease your travel speed.
• To shut off the torch simply release the control switch. When the switch is released a post-
flow will occur. If the torch trigger is pressed during the post-flow, the pilot arc will restart.
• Refer to the Troubleshooting section of this operating manual should the torch or system not
operate as expected.
NOTE: If the cutting arc is interrupted, and the torch trigger is still pressed, the pilot arc comes
back on automatically after 3 seconds.
NOTE: If sparks are being blown upward and back at the torch head, your torch travel speed is
too fast, decrease your travel speed.
NOTE: To cut grates, set cutting current at 20 A.
PIERCING WITH A HAND TORCH
NOTE: If necessary to make a cut on a metal sheet which is thicker than the maximum piercing capacity
(without an edge start) make a hole 1/4" using an electric drill to start cutting.
• When piercing with a hand torch, tip the torch slightly so that blowback particles blow away
from the torch tip (and operator) rather than directly back into it (Fig. B).
• Complete the pierce off the cutting line and then continue the cut onto the line. Hold the torch
perpendicular to the work piece after the pierce is complete (Fig. D).
• Clean spatter and scale from the shield cup and the tip as soon as possible. Spraying or
dipping the shield cup in anti-spatter compound will minimize the amount of scale which
adheres to it.
• Refer to the Troubleshooting section of this operating manual should the torch or system not
operate as expected.
IMPORTANT! Frequently review the Important Safety Precautions at the front of this Manual.
DISCONNECT PRIMARY POWER AT THE SOURCE AND WAIT FOR THE TORCH TO
COOL BEFORE DISASSEMBLING THE TORCH OR TORCH LEADS.
CAUTION! Be sure the operator is equipped with proper gloves, clothing, and eye & ear
protection. Make sure no part of the operator's body comes into contact with the work piece
while the torch is activated.
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