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6.5.3 Weekly Maintenance (40 Hours)
CAUTION: Perform all electrical work with power secured.
1. CABLE CONNECTIONS- Check all electrical lead connections from power supply to
wire feeder. The connections must fit firmly, a loose fit will cause the leads to heat up.
Use a screwdriver to spread the male prong for a tight fit.
2. FEEDER CONNECTIONS- Check the fittings inside the feed unit, tighten all bolts that
connect the current to the wire feed assembly.
3. POWER SUPPLY- Disconnect the power supply from the primary current. Remove the
side covers then remove the dust from inside the machine with an air hose.
6.5.4 Monthly Maintenance (160 Hours)
CAUTION: Perform all electrical work with power secured.
1. TIPS- Replace
2. CONTACT TUBE HOLDER- Replace
3. LINERS- Replace
4. FEED ROLLS- Inspect the knurled surface for wear, replace if required
5. FEED ROLL BEARINGS- Inspect feed roll bearings, these bearings will eventually wear
to a point of requiring replacement (usually more than 2000 hours of operation). If wear
causes misalignment of the gears and off center rotation, it is time for replacement.
6. ELECTRICAL CONNECTIONS- Inspect power lead connections for oxidation,
disconnect all fittings, sand clean with sandpaper or file, then re-connect or replace if
necessary.