Belt Adjustment; Dro Calibration And Operation - Powermatic PM2000B Operating Instructions And Parts Manual

8.8 Table to Blade Alignment
See Figures 8-10 and 8-11.
The table has been squared to the blade by the
manufacturer and no adjustment should be needed
now. If cuts become inaccurate, check table/blade
squareness and correct if necessary.
1. Disconnect saw from power source.
2. Raise blade to maximum height.
3. Mark one tooth (A, Figure 8-10) with a grease
pencil and position the tooth slightly above top
edge of table at the front.
4. Raise miter gauge slightly out of its slot to serve
as a shoulder. Using a sliding square (B)
against the side of the bar, slide the scale over
until it touches the tip of the blade, and lock
scale in position.
Figure 8-10
Figure 8-11
5. Rotate marked tooth (A) so that it is slightly
above table top at the rear, using the square as
before to verify that distance to blade is
identical. See Figure 8-11. If the two distances
are not the same, make a careful note of the
difference.
6. Loosen table screws (item #24, sect. 14.1.1),
and nudge table according to the distance you
noted.
7. Retighten screws firmly.
8. Verify alignment, angle pointer setting, fence
setting, etc. Make any needed adjustments.

8.9 Belt Adjustment

8.9.1 Belt Tension
See Figure 8-12.
Drive belt tension should be inspected after the first
few days of operation, as a belt may stretch slightly
during initial use; also inspect it periodically
thereafter.
To tighten belt:
1. Disconnect machine from power source.
2. Loosen screw (C, Figure 8-12) with 17mm
wrench.
3. Slightly loosen nut (D) with 1-1/4" (or
adjustable) wrench.
4. Push motor to the right and tighten screw (C) to
tension belt. Retighten nut (D). Verify proper
tension by pushing on belt midway between
pulleys; deflection should be about 1/2-inch.
If belt shows signs of wear, fraying, cracks, etc. it
should be replaced, as follows.
8.9.2 Belt Replacement
See Figure 8-12.
1. Lower trunnion completely.
2. Loosen screw (C) with 17mm wrench.
3. Slightly loosen nut (D) with 1-1/4" (or
adjustable) wrench.
4. Pivot motor to the left to release tension.
5. Replace belt.
6. Push motor to the right and tighten screw (C) to
tension new belt. Retighten nut (D). Verify
proper tension by pushing on belt midway
between pulleys; deflection should be about
1/2-inch.

8.10 DRO Calibration and Operation

When the 0° and 45° blade tilt stops have been
verified to be correct, the DRO (digital readout) can
be calibrated to match the settings.
20
Figure 8-12