Blastrac 1-7D - Page 57

1-7D Operating Instructions
Fault diagnosis
Fault Possible cause Remedy
Reduced or
no blasting
performance
"Shocked blast wheel".
At the start of the blast
process too much
abrasive at once hits the
wheel.
The advancing speed is
too high.
Close the magnetic valve
and stop the blast wheel
motor. Start the blast
process again and slowly
open the valve.
Reduce the advancing
speed.
Abrasive loss
on the surface
or escaping
abrasive at
the blast head
Incorrect height
adjustment of the
magnetic seals.
Worn magnetic seals.
Poor abrasive quality.
Worn tune-up kit.
Adjust the magnetic
seals.
Replace the magnetic
seals.
Contact ISPC
Blastrac/EBE.
Replace the tune-up kit.
Contaminated
abrasive
The filter unit is not
generating enough
suction power so that
dust remains in the
abrasive.
Check the filter unit
(cartridges and seals)
Excessive
wear in blast
housing and
rebound
plenum
Wrong abrasive.
Incorrect setting of the
control cage
Contact ISPC
Blastrac/EBE.
Make sure that the cage
retaining plate is
positioned correctly.
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