Problem
The drywall sander does not run
smoothly or jolts across the surface.
The removal rate of the material being
sanded is too high.
The surface quality is not optimal.
There are sanding marks on the
surface.
Troubleshooting
Cause
The suction effect is too strong.
The joint compound material and/or
substrates are hard.
The drywall sander's speed is too high.
The suction effect on the drywall
sander is too strong.
The joint compound material has a high
proportion of compound or is very soft.
The grit of the abrasive is too coarse.
The grit of the abrasive is too coarse.
The drying times for the joint
compound material have not been
observed.
The suction effect is too strong.
The joint compound material has a high
proportion of filler or is very soft.
The drywall sander's head scratches
the drywall while operating (scoring).
The hard sanding pad has been posi-
tioned at an angle on the surface.
In the case of very soft joint compound
material, the sanding pad is too hard or
the grit of the abrasive is too coarse.
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Corrective Action
Reduce the suction power or switch to
external dust extraction, if necessary.
Reduce the suction power or switch to
external dust extraction, if necessary.
Reduce the speed.
Reduce the speed.
Reduce the suction effect or switch to
external dust extraction.
Switch on the external dust extraction,
set the suction power thumbwheel to
setting 6 and, in extreme cases, reduce
the speed.
Use a sanding sheet with a finer grit.
Use a sanding sheet with a finer grit.
Refer to the technical information
sheets and manufacturer's recom-
mendations.
Reduce the suction power.
Use a sanding sheet with a finer grit.
Position the power tool before switch-
ing it on.
Work on the surface and always work
with the removable brush segment.
Use a soft sanding pad with an interme-
diate pad.
Use a soft sanding pad with an interme-
diate pad.
Choose a finer abrasive grit.