Jet JPJ-12B, Инструкция по эксплуатации и каталог запасных частей

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23
Feeding the Work
The planer is supplied with planer blades
mounted in the cutterhead, and infeed and
outfeed rollers adjusted to the correct height. The
planer feed is automatic; it will vary slightly
depending on the type of wood.
Preparation:
 Feed rate refers to the rate at which the
lumber travels through the planer.
 The operator is responsible for aligning the
work so it will feed properly.
 Raise or lower the planer table to get the
depth of cut desired.

The surface that the planer produces will be
smoother if a shallower depth of cut is used.
 Stand on the side of the machine that the
handle is attached.

Boards longer than 24" should have
additional support via free standing material
stands. These can be purchased from JET
–
Stock # 709209. See sect. 17.0, Optional
Accessories.
Planing
1. Position the workpiece with the face to be
planed on top.
2. Turn the planer on.
3. Turn the power feed on.
4. Rest the board end on the infeed roller plate
and direct the board into the planer.
5. Slide the workpiece into the infeed side of the
planer until the infeed roller begins to
advance the workpiece.
6. Let go of the workpiece and allow the
automatic feed to advance the workpiece.
7. Do not push or pull on the workpiece. Move
to the rear and receive the planed lumber by
grasping it in the same manner that it was
fed.
To avoid the risk of injury due
to kickbacks, do not stand directly in line with
the front or rear of the planer.
8. Do not grasp any portion of the board that has
not gone past the outfeed roller.
9. Repeat this operation on all boards that need
to be the same thickness.
Avoiding Snipe
Snipe refers to a depression at either end of the
board caused by an uneven force on the
cutterhead when the work is entering or leaving
the planer.
Snipe will occur when the boards are not
supported properly or when only one feed roller is
in contact with the work at the beginning or end
of the cut.
Precautions for avoiding snipe:
 Push the board up while feeding the work
until the outfeed roller starts advancing it.
 Move to the rear and receive the planed
board by pushing it up when the infeed roller
loses contact with the board.
 When planing more than one board of the
same thickness, butt the boards together to
avoid snipe.
 Make shallow cuts. Snipe is more apparent
when deeper cuts are taken.
 Feed the work in the direction of the grain.
Work fed against the grain will have chipped,
splintered edges.
12.0 Maintenance
12.1 Blade Care
Blades are extremely sharp!
Use caution when cleaning or changing.
Failure to comply may cause serious injury!
 The condition of the blades will affect the
precision of the cut. Observe the quality of the
cut that the planer produces to check the
condition of the blades.
 Dull blades will tear, rather than cut, the wood
fibers and produce a fuzzy appearance.
 Raised grain will occur when dull blades
pound on wood that has varying density. A
raised edge will also be produced where the
blades have been nicked.
When gum and pitch collect on the blades,
carefully remove with a strong solvent. Failure to
remove gum and pitch buildup may result in
excessive friction, blade wear, and overheating.
When blades become dull, touch up blades. See
sect. 12.2, Sharpening the Knives .