Why is the OVERHEAT LED indicator illuminated on my Ozito MWR-090 Welding System?
The OVERHEAT LED indicator illuminates because the power source overheat protection circuit has activated. To resolve this, stop welding and allow the power source to cool down for 10 minutes. The overheat indicator will turn off once the power source has cooled sufficiently.
What to do if my Ozito MWR-090 wire does not feed when I depress the torch trigger?
If the wire does not feed when you depress the torch trigger, it could be due to a faulty trigger switch or lead. In this case, you should repair or replace the torch or trigger lead. Alternatively, the fuse may be blown, so check the fuse or have an authorised electrician or power tool repairer replace the faulty parts. Finally, the Printed Circuit Board may be faulty, so have an authorised electrician or power tool repairer replace the faulty parts.
What to do if my Ozito Welding System is burning through the workpiece?
If your weld is burning through the workpiece, it could be due to several reasons. The welding arc voltage might be too high; reduce it by switching the Min/Max Control Switch to the Min position. The torch angle could also be incorrect; adjust the angle. Lastly, there might be excessive heat input; increase the torch travel speed or reduce welding current by switching the Min/Max Control Switch to the Min position.
Why is my Ozito MWR-090 Welding System wire continuing to feed when the torch trigger is released?
If the wire continues to feed even after you release the torch trigger, it could be that the torch trigger leads are shorted. In this case, repair or replace the torch or trigger lead. Alternatively, the Printed Circuit Board may be faulty, so have an authorised electrician or power tool repairer replace the faulty parts.
How to fix irregular weld shape with my Ozito MWR-090 Welding System?
An irregular weld shape can be caused by incorrect voltage and current settings (convex if arc voltage is too low, concave if voltage is too high). To fix this, adjust the voltage and current by adjusting the Min/Max Control Switch positions and the Wire speed adjustment knob. Another cause can be wandering wire, in this case replace the torch tip. Insufficient or excessive heat input can also cause this problem, adjust the wire speed adjustment knob or the Min/Max Control Switch to Max.
Why is my Ozito Welding System weld cracking?
Weld cracking can occur due to several reasons: the weld beads might be too small (decrease torch travel speed), the weld penetration might be narrow and deep (reduce current and voltage and increase the MIG Torch travel speed), excessive weld stresses (increase weld metal strength or revise design), excessive voltage (decrease voltage by reducing the Hi/Low Control Switch), or the cooling rate might be too fast (slow the cooling rate by preheating part to be welded or cool slowly).
Why won't my Ozito Welding System arc establish even when the wire feeds?
If the wire feeds when you depress the torch trigger but an arc cannot be established, clean the earth clamp area and ensure good electrical contact.
What causes jerky wire feed on my Ozito MWR-090?
A jerky wire feed can be caused by several factors: a worn or dirty contact tip (replace the contact tip), a worn drive roller (replace the drive roller), excessive back tension from the welding wire reel hub (reduce brake tension on welding wire spool hub), or a worn, kinked, or dirty conduit liner (clean or replace conduit liner).
What causes lack of penetration when using my Ozito MWR-090 Welding System?
Lack of penetration can be caused by welding current being too low; increase welding current by switching the Min/Max Control Switch to the Max position. Another cause can be joint preparation being too narrow or the gap being too tight; increase joint angle or gap.
What causes excessive spatter with my Ozito MWR-090 Welding System?
Excessive spatter can be caused by arc voltage being too high; lower the voltage by switching the Min/Max Control Switch positions to Min position. Alternatively, it can be caused by arc voltage being too low; raise the voltage by switching the Min/Max Control Switch positions to Max position.
General| Brand | Ozito |
|---|---|
| Model | MWR-090 |
| Category | Welding System |
| Language | English |
Defines user eligibility, recommends RCD use, and details precautions for fumes, glare, heat, and dress.
How to set wire speed and welding current using the adjustment knob.
Identifies common faults related to power, wire feed, and earth contact, with remedies.
Addresses issues with jerky wire feed, no wire feed, and faulty trigger switches or contact tips.
Solutions for wire feeding issues, overload indicator, burn-through, lack of penetration, and spatter.
Resolves issues with irregular weld shape, weld cracking, cold weld puddles, and voltage/current settings.
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