25
Troubleshooting
Increased cleaning time. Improper abrasive feed to
wheel.
Storage hopper.
Contaminated abrasive.
Abrasive feed and abrasive
control valve.
Wheel impeller, control cage
wear.
Drive belt.
Loss of consistent blast
pattern, “hot spot”.
Choked wheel.
Check ammeter reading. Low reading
indicates insufficient abrasive getting
to wheel.
Check abrasive level.
Abrasive may contain substantial
percentage of fines and contaminants.
Check ventilation.
Check for obstructions in the abrasive
feed, i.e. feed spout, abrasive control
valve, separator screen.
Replace wheel kit.
Check belt for proper tension,
alignment or wear.
Check blast pattern. Check the blast
wheel for proper seating with the
wheel hub.
Close abrasive valve and gradually
reopen. Check abrasive valve
operation, check “over-amping” blast
wheel.
Excessive wear on blast
housing rebound chamber /
liners.
Improper setting of control
cage.
Abrasive is being misdirected into
internal components instead of work
area. Check blast pattern and
readjust.
Abrasive leakage. Improper sealing.
Improper control cage setting.
Check all seals for wear.
Abrasive rebounding from side of
machine. Check blast pattern.
Machine will not drive. Drive pin not installed
Install drive pin.
Machine hang-up. Uneven work surface / floor
obstruction.
Push down on steering handle to raise
machine to clear small obstructions or
uneven work surfaces. Shut abrasive
valve if obstruction can be cleared.
Reverse direction to clear. Use
caution when raising seal due to
high velocity abrasive exposure.
Loss of cleaning action. Machine travel speed too fast. Adjust travel speed.
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