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Operation
Symptom
Possible Cause
Grinding,
1. Drum bearings are worn and need
screeching,
replacement.
or rubbing
noise when
sanding drum is
powered up.
Short V-belt
1. Pulleys not aligned correctly.
lifespan.
2. Improperly tensioned.
Machine lacks
1. V-belt loose.
power; drum
2. Too much pressure on sanding drum.
stops turning
under load.
Conveyor belt
1. Belt tension not properly adjusted.
slips under load.
2. Belt tracking not properly adjusted.
3. Conveyor belt worn.
4. Workpiece too heavy.
Conveyor belt
1. Conveyor belt tracking is incorrect.
tracks to one
side or hits the
conveyor table
mounts.
Excessive
1. Lack of outfeed support.
snipe.
2. Too much pressure from pressure rollers.
3. Too much pressure from the rear pressure
roller.
Workpiece kicks
1. Not enough pressure from pressure rollers.
out of sander.
Sandpaper
1. Sandpaper not properly wrapped onto drum.
comes off drum
2. Sandpaper not cut to correct dimensions.
or is loose.
3. Torn or damaged sandpaper.
4. Sandpaper not tightened or fastened
correctly.
5. Sanding drum not parallel with table.
Table elevation
1. Table lift screws are dirty or loaded with
controls are
sawdust.
stiff and hard to
2. Chain idler sprocket cap screws have been
adjust.
over tightened.
3. Elevation handwheel helical gear is dirty or
loaded with sawdust.
Burn marks on
1. Using too fine of sanding grit for depth of cut.
workpiece.
2. Sandpaper loaded with sawdust and gum
3. Feed rate too slow.
4. Sandpaper not properly wrapped onto drum.
5. Worn sandpaper.
Workpiece
1. Sanding drum not parallel with table.
sanded on only
one side.
-30-
Possible Solution
1. Replace drum bearings.
1. Align pulleys (Page 32).
2. Properly tension V-belt (Page 31).
1. Tighten V-belt (Page 31).
2. Lower conveyor table (Page 38).
1. Properly adjust belt tension (Page 35).
2. Properly adjust belt tracking (Page 33).
3. Replace conveyor belt (Page 36).
4. Use lighter workpiece.
1. Track the conveyor belt so it runs straight (Page 33).
1. Set up an outfeed table or have someone catch the
workpiece as it comes out.
2. Raise pressure rollers (Page 38).
3. Raise rear pressure roller (Page 38).
1. Lower pressure roller (Page 38).
1. Re-install sandpaper (Page 23).
2. Use sandpaper cut to correct dimensions (Page 23).
3. Replace sandpaper (Page 23).
4. Re-install sandpaper (Page 23).
5. Adjust sanding drum parallel to table (Page 37).
1. Clean and re-grease table lift screws (Page 28).
2. Adjust the cap screws on the idler sprocket so it can
spin freely.
3. Clean and re-grease the helical gear (Page 28).
1. Using too fine of sanding grit for depth of cut.
2. Sandpaper loaded with sawdust and gum
3. Feed rate too slow.
4. Sandpaper not properly wrapped onto drum.
5. Worn sandpaper.
1. Adjust sanding drum parallel to table (Page 37).
Model G0458Z (Mfd. Since 01/23)
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