Miller Electric pmn warranty Troubleshooting Torch

6-6. Troubleshooting Torch

Does arc go on and off while cutting?

No

Does arc go out while cutting?

No

Yes

Yes

Torch travel speed too slow; increase travel speed (see Section 5-2). Clean or replace torch consumables as necessary (see Section 6-4). Be sure work clamp is securely attached to workpiece.

Be sure work clamp is securely attached to work- piece. Make sure tip is on or near, 1/16 in (1.6 mm) to 1/8 in (3.2 mm) workpiece (see Section 5-4). Clean or replace torch consumables as necessary (see Section

6-4).

Go to Section 6-5.

Go to Section 6-5.

Do sparks come out of top of cut; or cut is not clean?

No

Is Trouble light On; unit has no cutting output?

No

Go to Section 6-5.

Yes

Yes

Torch travel speed too fast; reduce travel speed (see Section 4-1). Clean or replace torch consumables as necessary (see Section 6-4). Be sure work clamp is securely attached to workpiece. Unit not capable of cutting metals thicker than rating (see Section 4-1).

Check torch shield cup (see Section 6-2); reset unit Power switch. *Check torch and connections inside unit.

Go to Section 6-5.

*Servicing procedure to be performed only by authorized Service Station.

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