MAINTENANCE | ||
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SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• Only Qualified personnel should perform this maintenance.
•Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.
•Do not touch electrically hot parts.
ROUTINE MAINTENANCE
• Check weld cables, control cables and gas hoses for cuts.
• Clean and tighten all weld terminals.
• Inspect and clean drive rolls and inner wire guide and replace if worn.
PERIODIC MAINTENANCE
• Every six months check the motor brushes. Replace them if they are less than 1/4" long.
• Every year inspect the gearbox and coat the gear teeth with a
CALIBRATION SPECIFICATION
All calibration is factory set on the MAXsa™ Wire Drive. To verify the wire feed speed:
• Adjust the wire feed speed to 100 in/min (2.54m/min) and provide a COLD FEED Signal.
• Measure the actual wire feed speed with a calibrated wire feed speed tachometer K283).
• The measured wire feed speed should be within ±2% of the set value.
If a K283 is not available, feed wire for 15 sec- NOTE: onds and measure the wire. Repeat several times to get an average measurement. It should
be 25” (635mm)
SENSE LEAD FUSE
There should neverThebe sensingany currleadnt flowingcircuit isthroughcurrent protectedthe senseinleads!the Power Wave® AC/DC 1000 SD.
If the MAXsa™ 22 & 29 Wire Drives are used in an older system, a fuse in series with the #21 sense lead in the wire drive Connection Box protects the sense lead circuit from weld current due to incorrect configu- ration. If this fuse ever opens, check the sense lead configuration to ensure proper connections. The fuse must be replaced with a comparable fuse with a rating of less than 1 amp before welding. The fuse being open or missing would have the same effect on the welding as having a disconnected sense lead.