2-45D
Operating Instructions
Fault diagnosis
3
Fault diagnosis
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.
Close the magnetic valve and
stop the blast wheel motor. Start
the blast process again and slowly
open the valve.
An indication exceeding the
full load value means
overloading of the hydraulic
system, whereas an
indication below the full load
value shows that there is
not enough abrasive fed to
the blast wheel.
If necessary re-adjust the
magnetic valves or refill the
hopper with abrasive.
The filter unit is not
generating enough airflow.
Check the filter unit (cartridges
and seals). Adjust the airflow so
that the abrasive doesn't drop
dead on the surface, but make
sure that not too much abrasive is
sucked into the filter unit.
Building up of abrasive and
dust in the deflector.
Clean the deflector and the
magnetic drum. Increase the
vacuum of the airflow.
Abrasive loss on
the surface or
escaping
abrasive at the
blast head
Incorrect height adjustment
of the magnetic seals.
Adjust the magnetic seals. Check
the height adjustment (approx. 15
mm) of the blast cleaning
machine.
Poor abrasive quality.
Contact
Blastrac
. Recommended
for most applications
Blastrac
Shot 550 and Shot 460.
Worn blast wheel, impeller
or control cage.
Replace blast wheel, impeller or
control cage.
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).
