-58-
For Machines Mfd. Since 10/21
South Bend Tools
Model SB1118
TROUBLESHOOTING
Symptom
Possible Cause
Possible Solution
Fuzzy grain.
1.
Workpiece has high moisture
content or surface wetness.
1.
Allow workpiece to dry if moisture content is over
20% or has high surface wetness.
2.
Dull inserts.
2.
Rotate/replace inserts (Page 36).
Fine serration
on workpiece. (A
certain amount
of serration is
inevitable with
steel outfeed
rollers.)
1.
Excessive outfeed roller spring
pressure.
1.
Reduce outfeed roller spring pressure (However, if
reduced too much, workpiece may stop in middle of
cut) (Page 46).
Long lines or ridges
that run the length
of workpiece.
1.
Nicked or chipped inserts.
1.
Rotate/replace inserts (Page 36).
Uneven cutting
marks, wavy
surface, or chatter
marks across face
of workpiece.
1.
Feed rate too fast.
1.
Reduce feed rate (Page 34).
2.
Chip breaker or pressure bar set
unevenly.
2.
Adjust height of chip breaker or pressure bar
(Page 46).
3.
Bed rollers set too high or low; not
even with each other.
3.
Properly adjust bed roller height (Page 35).
4.
Insert(s) not properly installed.
4.
Remove insert(s), then properly clean and re-install
(Page 36).
5.
Worn cutterhead bearings.
5.
Check/replace cutterhead bearings.
Glossy surface.
1.
Inserts are dull.
1.
Rotate/replace inserts (Page 36).
2.
Feeding workpiece too slow.
2.
Increase feed rate (Page 34).
3.
Cutting depth too shallow.
3.
Increase depth of cut (Page 31).
Workpiece twists
in machine.
1.
Pressure bar set unevenly.
1.
Adjust height of pressure bar (Page 46).
2.
Bed rollers not parallel with table.
2.
Adjust bed roller height (Page 35).
Infeed/outfeed
rollers not rotating.
1.
Chain and sprockets are worn,
misadjusted, disconnected, or
broken.
1.
Adjust chain and sprockets; replace if necessary.
Vibration when
running or cutting.
1.
Loose/damaged insert(s).
1.
Tighten/replace insert(s) (Page 36).
2.
Damaged V-belt(s).
2.
Replace V-belt(s) (Page 44).
3.
Worn cutterhead bearings.
3.
Check/replace cutterhead bearings.
4.
Loose/damaged cutterhead.
4.
Tighten/replace cutterhead.
Consistent
chipping pattern.
1.
Knots or conflicting grain direction
in workpiece.
1.
Inspect workpiece for knots and grain direction; use
only clean stock (Page 28).
2.
Nicked, chipped, or dull insert.
2.
Rotate/replace insert (Page 36).
3.
Feed rate too fast.
3.
Reduce feed rate (Page 34).
4.
Depth of cut too deep.
4.
Reduce depth of cut (Page 31).
5.
Bed rollers set too high or low; not
even with each other.
5.
Properly adjust bed roller height (Page 35).
6.
Misaligned chip breaker.
6.
Adjust both sides of chip breaker to correct height
(Page 46).
Содержание SB1118
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