Lincoln Electric PCT125M manual Operation

B-1 OPERATION B-1

OPERATION

Refer to your Pro-Cut operator’s manual for complete operating information.

WARNING

When plasma cutting, it is necessary to wear proper eye, head and body protection.

A. Connect the work lead to the material to be cut.

B.Assemble an electrode, swirl ring, nozzle and shield cup on the torch.

C.Turn the Pro-Cut “ON” with the power switch on the front of the Pro-Cut.

D.Flip the Run/Purge switch to PURGE. Adjust the regulator until the pressure gage reads 55-65 psi (379-448 kPa.) Flip the Run/Purge switch to RUN. Air will continue to flow for 60 seconds because the Pro-Cut will be in post flow.

E.Adjust the output to the desired level. Refer to the appropriate Lincoln Process and Procedure Guidelines for recommended output, standoff, noz- zle and cutting technique for your application.

F.Activate the trigger.

•If the air was not already flowing, the Pro-Cut will allow the air to flow for two seconds before the pilot arc is started. This is called PREFLOW.

•If the trigger was activated during the first twelve seconds of postflow then a pilot arc will start instantly.

•To start an arc after the first twelve seconds of postflow it will be necessary to perform a double trigger pull consisting of activating, releasing and activating the triggering within a one second period.

G Bring the pilot arc close to the material to be cut. Once the torch is about 1/8" to 1/4" (3 mm to 6 mm) away from the work piece the arc will automatically transfer to the work and the Pro-Cut will regulate output to the setting on the dial (or to the signal from an interface kit.) It is best to minimize the pilot arc time in order to prolong consumable life. Starting at the edge of the work piece instead of piercing the material increases consumable life also.

H. Release the trigger when the cut is complete. Air will continue to flow for 60 seconds to cool the torch. This is called POSTFLOW.

PLASMA TORCH