Porter-Cable 557 Instruction Manual page 10

BLADES
(2" and 4")
Model 557 is shipped with a 4" diameter blade installed. This blade is used for all
operations except for the "FF" biscuit. To install the 2" blade for the "FF" biscuit:
Handle blades carefully. They are extremely sharp.
To reduce the risk of injury, turn unit off and disconnect it from power
source before installing and removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
A
Fig. 10
1. Loosen four blade cover retaining screws (A) Fig. 10, and remove blade
cover.
2. Depress and hold spindle lock button
(B) Fig. 11 while rotating blade by hand
until spindle lock engages.
3. Continue to hold spindle lock button
while using the
(furnished with tool), to remove blade
retaining bolt and flange, (by rotating
counter-clockwise).
4. Remove blade and store for future use.
5. Place 2" diameter blade onto blade
mounting flange. Orient with teeth
facing in same direction as directional arrow cast in housing (Fig. 14).
6. Position blade retaining flange (flat side out) to spindle, insert blade bolt,
and rotate clockwise until hand-tight.
7. Depress and hold spindle lock button (B) Fig. 11, while rotating blade by
hand until spindle lock engages.
8. Continue to hold spindle lock button while using the hex wrench (furnished
with tool), to tighten blade retaining bolt securely, (by rotating clockwise).
9. Rotate the "quick set" depth adjusting turret (A) Fig. 12, to the "FF" position.
Fig. 13
Fig. 11
5 / " hex wrench
32
A
Fig. 14
10
B
A
Fig. 12
A