3. striking an arc, 4. positioning the electrode holder – Hobart Welding Products STICKMATE OM-949 User Manual

Page 25

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OM-949 Page 21

7-3. Striking An Arc

S-0049 / S-0050

1

Electrode

2

Workpiece

3

Arc

Drag electrode across workpiece

like striking a match; lift electrode

slightly after touching work. If arc

goes out electrode was lifted to

high. If electrode sticks to work-

piece, use a quick twist to free it.

Bring electrode straight down to

workpiece; then lift slightly to start

arc. If arc goes out, electrode was

lifted too high. If electrode sticks to

workpiece, use a quick twist to free

it.

1

2

3

1

2

3

Scratch Start Technique

Tap Start Technique

7-4. Positioning The Electrode Holder

S-0660

90

°

90

°

10

°

−30

°

45

°

45

°

10

°

−30

°

Groove Welds

End View Of Work Angle

Side View Of Electrode Angle

Fillet Welds

End View Of Work Angle

Side View Of Electrode Angle

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