How to fix low speed on a MIRKA PROS 550CV?
If the Mirka Sander has low power and/or low free speed, try the following: 1. Turn the speed control to the desired speed. 2. Check the air supply. 3. Clean or replace the muffler or the air inlet screen. 4. Check the motor assembly and air inlet O-ring alignment. 5. Install a complete set of new vanes and rotor (Kit F). 6. Replace the worn or broken bearing (Kit A).
Why does my MIRKA PROS 550CV Sander have low power?
If your MIRKA Sander has low power or low free speed, there are several potential causes: * The speed control might be set too low. Adjust it to the desired speed. * The air pressure could be insufficient. Check the air supply. * The muffler or air inlet screen may be clogged. Clean or replace them. * There might be internal air leakage in the motor housing. Inspect the motor assembly and air inlet O-ring alignment. * The vanes could be worn or broken. Install a new set of vanes and rotor (Kit F). * The housing might be cracked or damaged. Contact a Mirka authorized service center. * The spindle bearing could be worn or broken. Replace it (Kit A).
General| Power | 350W |
|---|---|
| Speed | 4, 000 - 8, 000 rpm |
| Weight | 0.93 kg |
| Sanding pad size | 125 mm |
| Dust extraction | Central vacuum ready |
| Pad Size | 125 mm |
| Orbit | 5 mm |
| Power input | 350W |
| Dust System | Central vacuum ready |
| No-load speed | 12000 rpm |
| Noise Level | 71 dB |
| Vibration Level | 3.4 m/s² |
| Voltage | 220-240 VAC |
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