23
Contaminated abrasive
The dust collector is not generating
enough suction power so that dust
remains in the abrasive.
Clogged dust hose
Ripped or damaged dust hose
Check the dust collector (filter-cartridges,
dust hopper and seals)
Check and clean the dust hose
Replace dust hose
Excessive wear in blast
housing and rebound
plenum
Wrong abrasive.
Incorrect setting of the control cage
Contact
Blastrac
.
The thrown abrasive blasts the housing
and not the surface to be blasted. Adjust
the blast pattern.
Machine is not moving
The travel speed is too low.
Blast head gets caught on the floor.
Drive unit broken / not connected
Increase the travel speed.
Shut the machine down and adjust the
height.
Check chain drive.
Blast wheel motor does
not switch on
Motor protection switch has triggered.
Check and switch on again. Check the
mains power supply.
Blast wheel motor
switches off during
operation
Safety fuse or fault current breaker has
triggered.
Connection cable is defective.
Cables connecting the units (travel motor,
etc.) are defective.
Motor protection switches have triggered.
Have the fault checked by an electrician.
Replace the cable.
Replace the cable.
Have the fault checked by an electrician.
Machine does not travel Fuse defective, short circuit in the travel
motor lead or tachometer lead, motor
defective.
Control unit defective.
Potentiometer defective.
Have the unit checked by an electrician.
Replace the control unit
.
Replace the potentiometer.
Note: If the motor protection switches of the blast wheel motors have been triggered by overload, they can
be switched on again after a short cooling down period.
