30
7.Troubleshooting
Fault
Possible cause
Remedy
Excessive vibration
Blast wheel is worn irregularly.
Imbalance due to worn or broken wheel
blades.
Replace blastwheel.
Remove all broken parts from the
machine and replace blastwheel.
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 - abrasive valve and
abrasive storage hopper.
Blast wheel or control cage.
Adjustment of the abrasive valve.
"Shocked blast wheel".
At the start of the blast process too much
abrasive at once hits the blastwheel.
The travel speed is too high.
Clean abrasive valve, top up abrasive if
necessary.
Abrasive is heavily contaminated, check
the dust collection system. Consult the
operating instructions of the dust
collector.
Check and clean blocked abrasive valve
and abrasive storage hopper.
Worn blast wheel or control cage, replace
worn parts if necessary.
Check the adjustment of the abrasive
valve.
Close the abrasive valve and stop the
blast wheel motor. Start the blast process
again and slowly open the valve.
Reduce the travel speed.
Machine comes loose off
the wall
Poor sealing.
Incorrect adjustment of the spreader
beam and/or swivel castor wheels.
Not enough suction power.
Check all seals and replace if necessary.
See chapter 5.2
Check the dust collector. (Filters, dust
collection system)
Check the hoses and connections.
Make sure the hopper cover is closed
properly to keep the vacuum in the
machine.
Check for other causes of air leakage.
Abrasive loss on the
surface or escaping
abrasive at the blast
head
Worn magnetic or rubber seals.
Poor abrasive quality.
Replace the magnetic and/or rubber seals.
Contact
Blastrac
.
Содержание 200VMB
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