Maintenance - ESAB A6 TFD1 Operating Manual

MAINTENANCE

MAINTENANCE
1. Control unit PEG1, see operators' manual 443 392.
2. Wire feed motor A6 VEC, see operators' manual 443 393.
3. Daily
Keep the moving parts of the welding machine free from flux and dust.
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Make sure all electrical cables and hoses are undamaged and properly con-
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nected.
Check that all bolted joints are tight.
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Check the braking torque of the brake hub.
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This should be sufficient to prevent the reel continuing to rotate when wire
feed is stopped but not high enough to cause the feed rollers to slip.
Recommended braking torque for a 30 kg wire reel is 1.5 Nm.
4. Regularly
Check the wire feed motor brushes once every three months. Replace when
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they are worn down to 6 mm.
Examine the slides and lubricate if stiff.
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Inspect the wire guides, drive rollers and contact tip on the wire feed unit.
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Replace any worn or damaged components, see wear components on page
53.
If the carriage travel becomes
jerky, check that the chain is cor-
rectly tensioned.
Tension the chain if necessary.
*1 To tension the chain undo the nut and turn the cam, then tighten the nut.
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