Oliver 4275C, Owner'S Manual

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4275C Jointer OLIVERMACHINERY.NET 51 | Page
Problem Possible Cause Possible Solution
Excessive snipe Outfeed table is too
low.
Adjust the outfeed table to ensure it is flush with
the cutting arc of the cutterhead.
Too much downward
pressure when feeding
the end of a workpiece.
Once the workpiece reaches the outfeed table,
use the outfeed table as the reference. Reduce
feeding pressure apply to the workpiece that is
still on the infeed table.
Chipping Too much material was
removed in one pass.
Reduce the feed rate or the depth of cut.
Planing across/end
grain.
Do not use a jointer to cut across/end grain.
Damaged cutter. Rotate/replace cutter insert.
Cutting against grain;
or knots.
Avoid processing workpieces with knots. Cut
WITH grain whenever possible. When jointing a
workpiece with complicated grain pattern,
reduce the depth of cut. Sometimes moistening
problematic areas can reduce chipping.
Fuzzy looking finish. Wood moisture
content is too high.
Only process wood with less than 20% moisture
content.
Dull cutter. Rotate/replace cutter insert.
Some wood types tend
to have fuzzy grain.
Adjust feed rate or the depth of cut.
Use sharp cutters.
Glossy looking finish. Dull cutter. Rotate/replace cutter insert.
Cutting depth is too
shallow.
Increase depth of cut.
Long line or ridges
running along the
length of the board.
Chipped cutter. Rotate/replace cutter insert.
Finished stock has
uneven front-to-back
thickness.
Cutterhead is not flush
with the outfeed table.
Adjust the outfeed table to ensure it is flush with
the cutting arc of the cutterhead.
Inconsistent feeding
pressure applied to the
workpiece.
Apply even feeding pressure on the workpiece.
Keep feed rate consistent.
Finished stock is
concave/convex in
the middle.
Infeed/outfeed table
are not coplanar.
Ensure the outfeed table is parallel with the
cutterhead, and the outfeed/infeed tables are
coplanar.