A-6

INSTALLATION

A-6

PROCEDURE TO INSTALL DRIVE ROLLS AND WIRE GUIDES

WARNING

ELECTRIC SHOCK can kill.

Turn the input power OFF at the weld- ing power source before installation or changing drive rolls and/or guides.

Do not touch electrically live parts.

When inching with the gun trigger, electrode and drive mechanism are "hot" to work and ground and could remain energized several sec- onds after the gun trigger is released.

Do not operate with covers, panels or guards removed or open.

Only qualified personnel should perform mainte- nance work.

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To remove drive rolls and wire guides:

1.Turn power off at the welding power source.

2.Remove the outer wire guide.

4.Open the idle arms.

5.Remove the drive rolls and inner wire guide.

To install drive rolls and wire guides:

1.Turn off power at the welding power source.

2.Open the idle arms.

3.Assemble the inner wire guide.

IDLER ARM OPENED

INNER WIRE GUIDE

DRIVE ROLLS

OUTER WIRE GUIDE

3.Rotate all of the triangular rings to the unlocked position.

4.Slide the drive rolls onto the drive hubs.

5.Close the idle arms.

6.Rotate all of the triangular rings to the locked posi- tion.

7.Assemble the outer wire guide.

8.Adjust the pressure arms to the recommended setting.

AutoDrive™ 4R220

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Lincoln Electric 4R220 manual Procedure to Install Drive Rolls and Wire Guides, Electric Shock can kill