OS 343CV 75 - Sander Mirka - Free user manual and instructions
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| Product type | Orbital sander |
| Brand | Mirka |
| Model | OS 343CV 75 |
| Category | Sander |
| Sanding diameter | 75 mm |
| Orbital stroke | 5 mm |
| Power consumption | 250 W |
| Supply voltage | 230 V AC |
| Supply frequency | 50 Hz |
| No-load speed | 10,000 – 12,000 rpm |
| Vibration level | 2.5 m/s² |
| Sound level | 80 dB(A) |
| Dust extraction system | Integrated dust extraction with vacuum connection |
| Abrasive attachment type | Velcro (self-adhesive) with 8 holes |
| Cable length | 4 m |
| Weight | 1.2 kg |
| Dimensions (L × W × H) | 180 × 110 × 140 mm |
| Housing material | Reinforced polyamide |
| Switch | Trigger with continuous-operation lock |
| Handle | Ergonomic two-component handle |
| Maintenance and cleaning | Clean the dust filter and ventilation slots |
| Safety | Quick trigger stop, protection against accidental restarts |
| Spare parts | Sanding discs, sanding pads, and dust extraction connectors available |
| Warranty | 2 years |
Frequently Asked Questions - OS 343CV 75 Mirka
How do I place an abrasive disc on the Mirka OS 343CV 75?
Place the abrasive disc on the pad, aligning the holes. The velcro attachment holds the disc in place. Apply even pressure for a secure fit.
What style of abrasive disc is compatible?
Use discs with velcro attachment and perforated in the 8-hole pattern, 75 mm in diameter.
How do I connect the dust extraction?
Connect the 28 mm vacuum hose (or adapter) to the connector on the back of the device. Make sure the vacuum cleaner is turned on for effective extraction.
What speed should I use for sanding wood, metal, or plastic?
For wood, set a medium to high speed (10,000 rpm). For metal, use a lower speed to avoid overheating. For plastic, choose a slow speed to prevent the material from melting.
How can I reduce vibrations during use?
Hold the sander firmly with both hands, use suitable abrasive discs, and check that the pad is properly balanced. Vibrations also decrease with a stable speed.
Can I use the sander without dust extraction?
Yes, but dust will be thrown out. You can attach an optional dust bag or open the dust extraction outlet.
How do I clean the sander's filter?
Remove the filter from the housing and tap it over a trash can. For deep cleaning, use a brush or compressed air. Do not wash with water.
What should I do if the pad does not rotate?
Check that the speed is not locked in free rotation. If the problem persists, the pad bearing may be worn; replace the complete pad.
How do I connect the power cable?
Use a 230 V grounded outlet. Unroll the cable completely before use to avoid any risk of cutting.
Does the sander have a continuous-operation function?
Yes, the trigger has a lock button that keeps the device running without continuous pressure.
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USER MANUAL OS 343CV 75 Mirka
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Product information
Brand : Mirka
Model : OS 343CV 75
Category : Sander