Porter-Cable 557 Instruction Manual page 11

3. Depress and hold the spindle lock pin (G) on the top of the gear case while
rotating the blade by hand until the spindle lock engages.
4. Continue to depress the spindle lock pin (G) while loosening (counterclockwise)
the blade retaining screw (X) using the hex wrench provided.
U
FIG. 12
5. Remove the blade.
6. Before installing new blade ensure clamp washer (W) is installed as shown in
Figure 15 and blade teeth are pointed in the direction of the rotation arrow as
shown in Figure 16. Reinstall the blade by reversing the steps 2–4.
IMPORTANT: Always check the fine depth adjustment when replacing the blade.
Adjust if necessary. (See Fine Adjustment section).
FIG. 15
TO USE 2" (50.8 MM) BLADE (FIG. 12–15, 17–21)
1. Turn off and unplug the plate joiner.
2. Loosen the four screws (U) from the bottom of the blade cover (V) and then slide
and lift the blade cover from the unit. (Fig. 12)
3. Depress and hold the spindle lock pin (G) on the top of the gear case while
rotating the blade by hand until the spindle lock engages. (Fig. 13)
V
FIG. 13
X
FIG. 14
W
FIG. 16
11 11
G