Lincoln Electric IM595-A manual Limitations, Controls and Settings, GAS Pressure Settings

B-4 OPERATION B-4

LIMITATIONS

Do not exceed the output current and duty cycle rating of machine. Do not use the PRO-CUT 80 for pipe thawing.

CONTROLS AND SETTINGS

	Reset	Gas
Status		Purge	Gas
	Button	Button
Indicators			Regulator
			Gauge

•Set the output current control knob at maximum position for high cutting speed and less dross forma- tion. Reduce the current, if desired to reduce the kerf (cut) width, heat affected zone or travel speed as required.

GAS PRESSURE SETTINGS

• Push-in and hold the Purge button to check or set
the gas pressure. Pull the pressure regulator cap
out and turn it to set the pressure.
-	Adjust the gas regulator for 70psi(4.9kg/cm2) for
	25’(7.6m) torches or 75psi(5.3kg/cm2) for
	50’(15.2m torches.
-	Release the Purge button.

Output

Control

Knob

Consumable Storage (behind door)

XXXX XXXX XXXX XXXX

Gas

Regulator

Knob

PRO-CUT 80

- The gas will immediately turn off. The pressure

gage may show an increase in pressure after the

air turns off but this is normal. Do NOT reset the

pressure while the air is NOT flowing.

PREPARE TO CUT

• When ready to cut, place the torch near the work,

make certain all safety precautions have been taken

and pull the trigger.

Torch Connector

Work Cable

Input

Power

Switch

Interface

Connector

-	The air will flow for a preflow time of 2 seconds
	and the pilot arc will start. (This is true unless
	the machine is in postflow, then the preflow time
	is skipped and the pilot arc will start immediate-
	ly.)
-	The pilot arc will run for 3.0 seconds and shut off
	unless the arc is brought in contact with the work

When preparing to cut or gouge, position the machine as close to the work as possible. Make sure you have all materials needed to complete the job and have taken all safety precautions. It is important to follow these operating steps each time you use the machine.

•Turn the machine's ON/OFF POWER SWITCH to OFF position.

•Connect the air supply to the machine.

•Turn the main power and the machine power switch on.

-The fan should start.

-The pre-charge circuit will operate with all the LED’s lit and steady for 4 seconds, then all the LED’s should turn off except for the green "POWER" LED.

-If the "SAFETY" LED is lit and steady, push the "RESET" button. If there is no problem, the LED will go off. If there is a problem, refer to the head- ing "SAFETY LED" in this section.

-If any of the other LED’s remain lit and steady, refer to the troubleshooting section of the manual.

•Be sure that the work lead is clamped to the work- piece before cutting.

and the arc is transferred. Avoid excessive pilot

arc time by transferring the arc to the workpiece

quickly to improve parts life.

- When the arc is brought within 1/4"(6.4mm) from

the work piece: the arc will transfer, the current

will ramp up to the setting on the control panel,

and the cut can last indefinitely (or until the duty

cycle of the Pro-Cut is exceeded). Do not touch

the nozzle to the work when cutting with the

control panel setting above 45 Amps or damage

to the consumables will result.

• Pierce the work piece by slowly lowering the torch

onto the metal at a 300 angle away from the opera-

tor. This will blow the dross away from the torch tip.

Slowly rotate the torch to vertical position as the arc

becomes deeper.

	TORCH AT 300 ANGLE
	TO PIERCE
	ROTATE TO
300	900 ANGLE TO CUT
	Gloves required
	900
	VERTICAL ANGLE
	FOR CUTTING
	CUT

PRO-CUT 80