MIRKA PBS 10NV, Operating Instructions Manual

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Mirka® Pneumatic Belt Sander • PBS 10NV & PBS 13NV
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en
Troubleshooting guide
Symptom Possible cause Solution
Low power and/ or low free speed. Speed control set to low speed . Turn the speed control to desired speed .
Low air pressure . Check air supply (according to operating
instructions) .
Plugged air inlet screen . Clean or replace the screen .
Internal air leakage in the motor housing . Check motor assembly and alignment .
Check air inlet O-ring alignment on motor
assembly .
Worn or broken vanes . Install a complete set of new vanes and
rotor .
Housing cracked or damaged . Contact Mirka authorized service centre .
Air leakage at the speed control. Dirty, broken or bent valve spring, valve
or valve seat .
Disassemble, inspect and replace worn or
damaged parts .
Incorrect assembly of air valve . Remove air inlet connection and
reassemble the air valve, with the valve
stem in its upper position .
Vibration / rough operation. Worn or broken motor bearing(s) . Replace the worn or broken bearings .
Low motor speed . Increase motor speed with flow regulator,
max 6 .2 bar (90 psig) .