Porter-Cable 557 Instruction Manual page 9

FINE ADJUSTMENT (FIG. 5)
The "quick set" depth adjustment is adjusted at
the factory to produce joints with nominal
clearance (biscuit to groove). A fine adjustment is
provided allowing you to reduce or increase the
clearance as desired. To adjust:
1. Use an 7/16" wrench to loosen locknut (P).
2. Rotate fine adjustment knob (F), to desired
position (rotate knob clockwise to reduce
depth of cut, rotate knob counter-clockwise
to increase depth of cut).
3. While holding adjustment knob in desired
position, tighten locknut firmly.
ADJUSTABLE FENCE
Model 557 is equipped with an integral, adjustable fence which:
• provides micro-height adjustment. The distance scale includes indexes to top of
cut, to center of cut, and to bottom of cut.
• tilts 0° through 135°, with an adjustable stop at 90°.
• does not have to be removed to make "flush" cuts.
HEIGHT ADJUSTMENT (FIG. 6, 7)
1. Loosen locking knob (J), and rotate knob (A) to position the fence as desired,
(rotate knob clockwise to raise fence, rotate knob counterclockwise to lower
fence).
2. The depth scale (I), indicates the distance from the top edge of the workpiece to
the blade: NOTE: The bottom line on scale (I) begins at 1/4" (6.4 mm) and all lines
are in 1/16" (1.6 mm) increments.
• The line across the center of the index block (Q) indicates the distance to the
center of the blade.
• The top edge of the index block (Q) indicates the distance to the bottom of
the blade.
• The bottom edge of the index block (Q) indicates the distance to the top of
the blade.
• The width of the index block (Q) is equal to the thickness of the blade.
3. Once fence is in desired position, tighten knob (J).
A
J
FIG. 5
Q
FIG. 6
9 9
P
F
I
FIG. 7