Lincoln Electric AUTODRIVE 4R90 - Manual (Page 14)

A-7 INSTALLATION
AutoDrive 4R90
A-7
PROCEDURE TO INSTALL DRIVE ROLLS
AND WIRE GUIDES
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.
3. Rotate all of the triangular rings to the unlocked
position.
WARNING
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.
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.
INNER WIRE GUIDE
IDLER ARM OPENED
OUTER WIRE GUIDE