26
8.Troubleshooting
Fault
Possible cause
Remedy
Excessive vibration
Blast wheel is worn irregularly.
Imbalance due to worn or broken wheel
blades.
Replacing the tune-up kit.
Replace the tune-up kit and remove all
broken parts from the machine.
Unusual noise
Too little play or poor alignment of the
rotating parts.
Loose and incorrect set screws.
Squeaking wheels.
Seizing motor.
Check alignment of the rotating parts
(blast wheel and control cage).
Check whether all screws and parts are
fixed tightly).
Replace the wheels.
Replace the motor.
Reduced or no blasting
performance
Inadequate abrasive supply to the blast
wheel.
Contaminated abrasive.
Feeding of abrasive - magnetic valve and
abrasive storage hopper.
Blast wheel or control cage.
Adjustment of the magnetic valve.
"Shocked blast wheel".
At the start of the blast process too much
abrasive at once hits the wheel.
The travel speed is too high.
Clean wire mesh, top up abrasive if
necessary.
Abrasive is heavily contaminated, check
the dust collection system.
Check and clean blocked feed spout or
magnetic valve.
Worn blast wheel or control cage, replace
tune-up kit if necessary.
Check the adjustment of the magnetic
valve.
Close the magnetic valve and stop the
blast wheel motor. Start the blast process
again and slowly open the valve.
Reduce the travel speed.
Escaping abrasive
Poor sealing.
Check all seals and replace if necessary.
Abrasive loss on the
surface or escaping
abrasive at the blast
head
Incorrect height adjustment of the
magnetic seals.
Worn magnetic and/or brush seals.
Poor abrasive quality.
Worn tune-up kit.
Adjust the magnetic seals.
Replace the magnetic and/or brush seals.
Contact
Blastrac
.
Replace the tune-up kit.
