37
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
.
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.
Problem with winches or wire rope.
Control unit defective.
Increase the travel speed.
Shut the machine down and check the
winches and/or wire ropes for wear. See
chapter 6.5
Have the unit checked by an electrician.
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 (winches,
motors etc.) are defective.
Motor protection switches have triggered.
Have the fault checked by an electrician.
Replace the cable.
Replace the cable(s).
Have the fault checked by an electrician.
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.
