-30-
Model G0458Z (Mfd. Since 7/19)
Operation
Symptom Possible Cause Possible Solution
Grinding,
screeching,
or rubbing
noise when
sanding drum is
powered up.
1. Drum bearings are worn and need
replacement.
1. Replace drum bearings.
Short V-belt
lifespan.
1. Pulleys not aligned correctly.
2. Improperly tensioned.
1. Align pulleys (Page 32).
2. Properly tension V-belt (Page 31).
Machine lacks
power; drum
stops turning
under load.
1. V-belt loose.
2. Too much pressure on sanding drum.
1. Tighten V-belt (Page 31).
2. Lower conveyor table (Page 38).
Conveyor
belt slips
under load.
1. Belt tension not properly adjusted.
2. Belt tracking not properly adjusted.
3. Conveyor belt worn.
4. Workpiece too heavy.
1. Properly adjust belt tension (Page 34).
2. Properly adjust belt tracking.
3. Replace conveyor belt.
4. Use lighter workpiece.
Conveyor belt
tracks to one
side or hits the
conveyor table
mounts.
1. Conveyor belt tracking is incorrect. 1. Track the conveyor belt so it runs straight (Page 33).
Excessive
snipe.
1. Lack of outfeed support.
2. Too much pressure from pressure rollers.
3. Too much pressure from the rear pressure
roller.
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).
Workpiece
kicks out of
sander.
1. Not enough pressure from pressure rollers. 1. Lower pressure roller (Page 38).
Sandpaper
comes off drum
or is loose.
1. Sandpaper not properly wrapped onto drum.
2. Sandpaper not cut to correct dimensions.
3. Torn or damaged sandpaper.
4. Sandpaper not tightened or fastened
correctly.
5. Sanding drum not parallel with table.
1. Re-install sandpaper (Page 23).
2. Use sandpaper cut to correct dimensions.
3. Replace sandpaper.
4. Re-install sandpaper.
5. Adjust sanding drum parallel to table.
Table elevation
controls are
stiff and hard to
adjust.
1. Table lift screws are dirty or loaded with
sawdust.
2. Chain idler sprocket cap screws have been
over tightened.
3. Elevation handwheel helical gear is dirty or
loaded with sawdust.
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).
Burn marks on
workpiece.
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. Use coarser grit sandpaper or decrease depth of cut.
2. Clean/replace sandpaper.
3. Increase feed rate.
4. Re-install sandpaper.
5. Replace sandpaper.
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