Festool RO 125 FEQ Plus Supplemental User's Manual - page 21
Supplemental Owner’s Manual
21
Troubleshooting
Symptom
Possible Causes
Motor does not start
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Check that the cord is properly plugged into an outlet.
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Make sure the Plug-it connector is properly inserted and fully tightened.
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Make sure the outlet has power. Check the circuit breaker or try another outlet.
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If used with a Festool dust extractor, make sure the selector switch is pointing to “Auto”. The
auxiliary outlet on the dust extractor has power only when the selector is at Auto.
►
Inspect the power cord (including extension cords) for damage or missing prongs.
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The motor brushes may have worn and need replacement.
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Please note that the power switch is a sealed pneumatically actuated switch that is not
prone to dust ingestion. Do not attempt to open the switch.
Sander runs
sporadically or looses
power
►
Make sure the Plug-it cord is properly tightened. Inspect the plug and tool power inlet for
signs of overheating. If signs of overheating are present, discontinue use and have the tool
serviced. If the Plug-it cord shows signs of overheating, do not use the cord for other tools,
as it can damage the inlet of the other tool.
Sanding disk doesn’t
stick or flies off during
sanding
►
Make sure the disk is firmly pressed onto the pad.
►
To make sure it isn’t a defective disk, try using a different disk.
►
Make sure the bottom of the pad is clean and free of debris.
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The sanding pad is a wear item and may need replacement. Sanding generates heat, and
heat will degrade the Stickfix hooks on the sanding pad. Avoid operations that generate
excessive heat, such as holding the sander motionless on sharp edges.
Deep scratches in
finish sanding
►
The most likely cause is that scratches from a coarse grit paper are too deep for the cur-
rent/final grit paper. Make sure you don’t skip a grit in progression.
►
If switching from Rotex to random orbit mode, stay with the same grit.
►
Rework the finish with a grit appropriate to remove the scratches and progress to finish grit.
►
Avoid beginning with too coarse of a grit for the need. Begin sanding with a grit only coarse
enough to meet the smoothing and leveling needs of the project.
Excessive swirl marks
►
Make sure the dust collection vacuum is set for reduced power. Too much vacuum will apply
too much pressure to the sanding surface.
►
Reduce your sanding pressure. Too much sanding force reduces the freewheel motion of the
sanding pad, which results in sanding swirls.
►
With the sander turned off, inspect the freewheel motion of the sanding pad. If the free-
wheel seems too stiff, apply a thin lubricant such as paste wax between the pad brake and
sanding pad.
Sander jumps or is
hard to control
►
Make sure you are holding the sander level on the work surface. Tilting the sander or even
applying uneven down-force can cause it to jump.
►
Reduce sanding pressure and make sure the dust collection vacuum is running at reduced
power.
►
Inspect the sanding pad for proper installation. A loose or misaligned sanding pad can result
in runout in the orbital motion.