Powermatic 511 - Manual (Page 16)

16
Alignment
If the saw ever needs realignment, it should be
performed in the following order:
1. Align rollers.
2. Align guides perpendicular to rollers.
3. Align blade parallel to guides.
To ensure accuracy over the full movement of
the saw, construct a test square as follows,
(Figure 17):
Use a 6-foot metal ruler and two 4-foot metal
rulers (using the 3-, 4-, and 5-ft. measurements
ensures squareness). Drill holes and attach the
rulers with pop rivets or small nuts and bolts.
The 6-foot ruler is used to check squareness of
the rollers. The 4-foot ruler is used to check
squareness of the guide tubes.
Step 1: Align Rollers
The two outermost rollers are fixed, so adjust all
other rollers to them. Place the 6-foot edge of
the square across the rollers to check for
alignment. The edge of the square should touch
all rollers. If it does not, adjust as follows:
1. Clamp the straightedge to the top of the
outermost rollers and flat to the frame.
Position the clamps above the outermost
rollers.
2. Turn each roller to ensure it does not jam or
have excessive clearance from the
straightedge. If this occurs, loosen the roller
nut, shown in Figure 18.
3. The adjustable rollers have an eccentric
hub. Turning the roller when the roller nut is
loose changes the position of the roller.
Turn the roller until it touches the
straightedge, making sure the straightedge
does not bend. NOTE: The roller panel may
have to be loosened in order to turn the
roller. See Figure 18.
4. When the roller is positioned, tighten the
roller nut. NOTE: If a fixed roller has been
replaced, the above procedure should be
repeated.
5. Leave the test square clamped to the rollers
for the next step.
Figure 17
Figure 18