Maximum Performance Tips - Jet JWDS 2244OSC M Mode D'emploi

If the drum motor is lugging down, if conveyor belt is
slipping, or if you observe a ripple effect on the stock,
slow the feed rate. If the finish is smooth and the
machine is not overworking, you can experiment
using a faster feed rate.
TM
The SandSmart controller continuously monitors
the load on the drum motor, and automatically
regulates the speed of the conveyor motor to
maintain the highest feed rate without overload.
When the red indicator light (A, Figure 9‐2) comes on,
TM
the SandSmart control has detected too great a
depth of cut and/or too fast a feed rate.
If the load on the drum motor increases, the
TM
SandSmart control will decrease the conveyor feed
rate and will stop the conveyor under extreme
conditions. If the load on the drum decreases,
TM
SandSmart will increase the feed rate but will not
increase it faster than the manual setting on the
speed adjustment label.
The best and most consistent finish will be achieved if
the conveyor does not change speed during
operation.
Figure 9‐2: SandSmart
A change in conveyor speed may affect the finish
surface. If the finish is affected, make another
sanding pass without changing any settings.
If the finish is still affected, make adjustments by
slowing the conveyor and/or decreasing the depth of
cut and run the stock through again.
Also try a faster feed rate or less depth of cut if the
stock you are working begins to show burn marks.
With cherry, hard maple or other hardwoods, using a
shallower depth of cut and a faster feed rate will help
minimize burn marks. Slightly angling the stock as it is
fed into the machine will also help prevent burning
the stock.
Because of the wide range of variables, it is important
to experiment with your specific conditions and make
adjustments to achieve the optimum feed rate. If
problems occur, first check and adjust the feed rate,
referring to the "Troubleshooting" section in this
manual.
TM
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9.7 Maximum performance tips
The versatility designed into the drum sander allows
it to be used for a variety of tasks that will boost
return on your investment. For example, it will speed
up fine sanding work often done with slower, dust‐
generating hand sanders, and will achieve fine
thickness adjustments not possible on some sanders.
It can be used to surface figured woods – bird's eye or
curly maple, for example – which can be damaged if
fed through a planer.
Learning how to use its adjustments and controls will
allow you to fine‐tune the machine for maximum
results. The best results come from experimenting
with different abrasive grits and machine adjustments
to fit the job at hand. Following is a list of useful tips
which can help you improve performance of your
sander.
9.7.1 Dust collection
When connecting dust collectors, remember that
straight pipe will not restrict airflow as much as
flexible tubing. Y's and elbows will restrict airflow less
than T's. Hoses smaller than 80mm diameter should
not be used.
9.7.2 Multiple‐piece sanding runs
When abrasive planing (or thickness sanding) a run of
similar pieces that you want to have the same
thickness, it is best to determine the thickness of the
thinnest piece and process all pieces to that same
thickness in one session. Be aware that the sander
will remove cups and crowns in the workpiece;
consider this when measuring and processing stock to
the same thickness.
9.7.3 Simultaneous multiple pieces
When sanding multiple pieces simultaneously, make
sure to stagger (step) the pieces across the width of
the conveyor belt. This provides better contact with
the tension rollers. Try to process only multiple pieces
of similar thickness.
If there is a significant thickness difference, the
thinner pieces can slip on the conveyor belt if they do
not contact the tension rollers. Also note that pieces
thicker than 20mm should be longer than the
minimum normally recommended to prevent tipping
of the stock.
9.7.4 Edge sanding
When edge sanding, the sander will mimic the
opposite edge of the stock which is lying on the
conveyor belt. Because of this, it is important for the
stock edge to have been ripped at the proper angle to
the face before the sanding process. When edge
sanding stock that is less than 20mm wide or more
than 50mm high, it is good procedure to stack and