Hobart Welding Products OM-279 manual Sequence Of Operation, Example Of Cutting Operation

3-3. Sequence Of Operation

Do not clean torch by hitting it against a hard surface. Hitting hard surfaces can damage torch parts and stop proper opera- tion.

Inspect shield cup, tip, and electrode for wear before cutting or whenever cutting speed has been significantly reduced (see torch Owner’s Manual). Do not operate torch without a tip or electrode in place.

Install &	Put On Personal	Check Torch Tip,	Check Gas/Air	Set	Turn On
Connect	Safety	Electrode, And	Pressure	Controls	Power Source
Equipment	Equipment	Retaining Cup
	Begin
	Cutting

EXAMPLE Of Cutting Operation	The pilot arc starts immediately when
	trigger is pressed.

Place drag shield on edge of metal,	Press trigger. Pilot arc starts.
or allow correct standoff distance –
approximately 1/8 in (3 mm).

After cutting arc starts, slowly start moving torch across metal.

Adjust torch speed so	Pause briefly at end of	Postflow continues for approx. 20 to
sparks go thru metal and	cut before releasing trigger.	30 seconds after releasing trigger;
out bottom of cut.		cutting arc can be instantly
		restarted during postflow by
		pressing trigger.
		ST-801 400-A

OM-279 Page 16