Verifying Drum Alignment; Tension Roller Adjustment; Storage Cabinet - Powermatic PM2244 Manual De Instrucciones De Operación Y Piezas

7.4.1 Verifying drum alignment

Note: This is an operational test. Perform this
procedure only after you have become familiar with
sander operation.
When sanding boards wider than the drum, table
alignment is critical and table must be adjusted
exactly level to slightly lower on the outboard end.
This will prevent any ridges from developing in the
stock. Always check this on a piece of scrap wood,
as follows, before sanding the work piece.
1. Run a piece of scrap wood approximately 6"
wide by 30" to 40" long through the sander
sideways so that end of board extends past
outboard side of drum.
2. Without changing drum height, rotate board
180° and sand the same side.
3. If a ridge is visible where the drum overlaps,
lower table at outboard end slightly by turning
dial (B, Figure 13).
4. Repeat this process until the ridge is eliminated
and entire board is sanded.
TIP: Place a mark on adjustment dial to keep track
of how much dial rotation is needed to change drum
alignment for wider (over 22") sanding. When
sanding narrow stock (less than 22") turn dial
opposite direction the same amount as the initial
wide sanding so that drum is again parallel.

7.5 Tension roller adjustment

The infeed and outfeed rollers are tensioned to
provide downward pressure on the workpiece to
prevent slippage on the feed conveyor. Tension
rollers have been set by the manufacturer, but
should be inspected and may require adjustment as
the sander receives use.
Improperly adjusted tension
rollers (i.e. those set too high, rendering them
non-functional) could allow kickback of pieces
being sanded.
You can increase or decrease tension roller
pressure by turning the screws on the tension roller
brackets (Figure 14).
Too much tension roller pressure can result in a
"snipe" mark, which is a visible line running across
the width of the board and located approximately 2-
3/8" from end of board.
If snipe occurs on the leading end of board, adjust
outfeed tension roller. If the snipe occurs on trailing
end of board, adjust infeed tension roller.

7.6 Storage cabinet

Open cabinet by pulling latch outward and rotating
left, as shown in Figure 15.
11
Figure 14
Figure 15