-46-
Model G0866 (Mfd. Since 11/18)
Operation
Symptom
Possible Cause
Possible Solution
Loud, repetitive
noise coming
from machine.
1. Pulley set screws or keys missing or loose.
2. Motor fan rubbing on fan cover.
3. V-belt(s) defective or damaged.
1. Inspect pulley keys and set screws. Replace or tighten
if necessary.
2. Fix/replace fan cover; replace loose/damaged fan.
3. Replace V-belt(s) (
Page 60).
Machine is
loud, overheats
or bogs
down during
operation.
1. Excessive depth of cut.
2. Sanding belt worn/clogged.
1. Decrease depth of cut.
2. Clean/replace sanding belt (
Page 35 & 44).
Rounded
workpiece
edges.
1. Excessive depth of cut.
1. Reduce depth of cut.
Uneven
thickness from
left to right of
board.
1. Sanding belt worn unevenly.
2. Feed table not parallel to upper frame.
3. Conveyor belt worn.
1. Replace sanding belt (
Page 35). Feed workpieces
evenly across sanding belt, not just on one side.
2. Adjust feed table (
Page 55).
3. Replace conveyor belt (
Page 64).
Workpiece slips
on conveyor
belt.
1. Pressure rollers set too high.
2. Dirty/worn conveyor belt.
1. Lower pressure rollers (
Page 58).
2. Clean/replace conveyor belt
(
Page 64
)
.
Grooves down
length of
workpiece.
1. Pressure rollers dirty/damaged.
2. Platen set too low.
3. Platen graphite pad damaged.
1. Clean/repair/replace pressure rollers.
2. Raise platen to reduce pressure (
Page 36).
3. Replace graphite pad (
Page 51).
Snake-shaped
marks on
workpiece.
1. Sanding belt dirty/damaged.
2. Pressure rollers dirty/damaged.
1. Clean/replace sanding belt (
Pages 35 & 44).
2. Clean/repair pressure rollers.
Lines across
width of
workpiece.
1. Sanding belt seam open/damaged.
2. Platen set too low.
1. Replace sanding belt (
Page 35).
2. Raise platen to reduce pressure (
Page 36).
Glossy spots
or streaks on
workpiece.
1. Worn sanding belt.
2. Rear pressure roller too low.
3. Feed rate too low.
4. Platen set too low.
5. Graphite or felt pad worn/damaged.
6. Using amp load meter to establish material
removal amount.
1. Replace sanding belt (
Page 35).
2. Raise rear pressure roller (
Page 58).
3. Increase feed rate (
Page 37).
4. Raise platen to reduce pressure (
Page 36).
5. Replace graphite or felt pad (
Page 51).
6. Use alternate methods to establish material removal
amount (
Page 34).
Motor & Electrical (Cont.)
Symptom
Possible Cause
Possible Solution
Machine slows
when operating.
1. Feed rate too high.
2. Excessive depth of cut.
3. Sanding belt grit too fine for job.
1. Reduce feed rate (
Page 37).
2. Reduce depth of cut.
3. Replace with coarser grit sanding belt (
Page 35).
Machine has
vibration or
noisy operation.
1. Motor or component loose.
2. V-belt(s) worn, loose, pulleys misaligned, or
belt slapping cover.
3. Machine not secured to floor.
4. Motor fan rubbing on fan cover.
5. Motor bearings at fault.
6. Conveyor gearbox at fault.
1. Replace damaged or missing bolts/nuts or tighten if
loose.
2. Inspect/replace belts with a new matched set
(
Page 60). Realign pulley if necessary.
3. Tighten mounting bolts; relocate/shim machine.
4. Fix/replace fan cover; replace loose/damaged fan.
5. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
6. Rebuild gearbox for bad gear(s)/bearing(s).
Summary of Contents for G0866
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