Oscillating Mode; Basic Operating Procedure; Setting Depth Of Cut; Establishing Drum Height - Jet JWDS 2244OSC M Mode D'emploi

Figure 9‐1: control panel
9.2 Oscillation mode
The sander can be used with sanding drum in fixed
position or in oscillation mode. The top dial (Figure 9‐
1, E) activates oscillation mode.
NOTE: If changing from oscillation mode to fixed
mode, allow drum to center itself over conveyor
before turning off oscillation mode.
9.3 Basic Operating Procedure
1. Establish depth of cut.
2. Start dust collection system.
3. Start sanding drum.
4. Start oscillation and select speed.
5. Start conveyor and select feed rate.
6. Feed stock through machine.
To feed stock through the sander, rest and hold board
to be sanded on conveyor belt, allowing conveyor
belt to carry board into drum. Once stock is halfway
through, reposition yourself to outfeed side of
machine to receive and control board as it exits.
Board will be forced down against
conveyor table as it begins feeding, causing pinching
hazard. Keep fingers away.
Do not open drum hood until
drum comes to a complete stop.
9.4 Setting depth of cut
Adjusting the drum sander for proper contact
between abrasive and stock determines the depth of
cut. The depth of cut is controlled by the height
adjustment handle.
It may take experimentation to determine proper
depth of cut, given the variables of abrasive grit, type
of wood and feed rate. For best results, use scrap
wood to practice sanding and to develop skill and
familiarity with the machine before doing finish work.
A combination of several variables will determine
proper depth of cut to use, including the following:
1. Abrasive type and grit size.
2. Width of piece being processed.
3. Hardness of piece.
4. Feed rate of conveyor belt.
NOTE: The use of a carrier or backer board (not
provided), is recommended for cuts 1,5mm or less.
This is a flat board, usually of wood or MDF, slightly
larger than the workpiece and of even thickness,
placed beneath the workpiece as it is fed through the
sander. The workpiece may be attached to the carrier
with rubber cement, carpenter's tape or some other
easily removable adhesive. However, some operators
use a rubber or textured surface on the carrier to
help stabilize the workpiece by simple friction.
9.5 Establishing drum height
A good rule of thumb when sanding with grits finer
than 80:
1. To establish drum height, position stock under
the drum. Do NOT start drum.
2. Lower drum to the stock thickness, making sure
drum can still be rotated by hand while just
contacting stock.
contact with stock.
3. Without changing drum height, turn on conveyor
and run the stock out from under the drum. Start
sanding drum and sand stock at that same
position.
4. With the drum operating, feed stock under the
drum from the infeed side and against the
rotation of the drum. Always maintain control of
the stock to avoid kickback and/or slippage.
For sanding with grits coarser than 80, you can lower
the drum slightly.
Always maintain control of stock. Through practice
you will learn the proper depth of cut considering the
variables above.
9.6 Selecting SandSmart™ feed rates
A faster feed rate allows faster sanding but fewer
revolutions of the drum per inch of sanding. A slower
feed rate provides more revolutions of the drum per
inch of sanding to allow a greater depth of cut and
smooth sanding.
Begin experimenting with the feed rate set at about
50% of maximum. The best feed rate will depend on a
number of factors, including type of stock, grit and
depth of cut used, and whether the stock is fed
directly in line with the conveyor table or at an angle.
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Do not start drum while in