Porter-Cable 557 Instruction Manual page 16

4. Clamp a straight edge guide to the workpiece 3/8" (9.5 mm) back from the joint
centerline (as marked in Step 2). Clamp workpiece securely (see Fig. 32).
5. Set tilt fence to 0° position (see Angle Adjustment Section section).
6. Position tool to workpiece with bottom of base against straight edge and guide
notch (FF) Fig. 33, aligned with a groove centerline. Apply pressure to auxiliary
handle (B) Fig. 33 to hold tool firmly in place.
B
FIG. 33
7. Hold tool firmly as shown in Fig. 29. Squeeze trigger switch to start tool.
8. At a slow, steady pace, push tool forward in base as far as depth stop allows.
9. Release trigger switch to stop tool and remove tool from work.
10. Repeat steps 5 through 8 until all the grooves in workpiece (HH) are completed.
11. Follow steps 3 through 10 of Corner Joints section to complete required
grooves in workpiece (II) Fig. 31.
NOTE: Assemble all joints and verify alignments before applying glue (see Fig. 33).
BUTT JOINTS
Tool adjustment and operation for producing butt joints (see Fig. 27D) are the same
as for Corner Joints.
MITER JOINTS (FIG. 35–37)
1. Layout groove positions
described in Positioning Grooves
section.
2. Set depth adjustment turret to
desired biscuit (or other accessory)
size.
3. Set the tilt fence to desired angle
(see Angle Adjustment section).
4. Set fence height
to desired height (see Height
Adjustment section).
5. Clamp workpiece securely.
6. Position tool to workpiece utilizing
either guide notch (FF) or (GG) to
align tool with a groove centerline.
Apply pressure to auxiliary handle
(B) to hold tool firmly in place.
7. Hold tool firmly as shown in
Figure 36,and squeeze trigger
switch to start tool.
8. At a slow, steady pace, push tool forward in base as far as depth stop allows.
9. Release trigger switch to stop tool and remove tool from work.
10. Repeat Steps 6 through 8 until all the grooves for this joint are completed.
NOTE: Assemble all joints and verify alignments before applying glue (see Fig. 37).
FF
FIG. 34
as
adjustment
GG
FIG. 35
16 16
B
FF