Porter-Cable 557 Instruction Manual page 11

900016 - 10-31-01.qxd
11. Reposition blade cover plate to tool, and secure in place with the four
retaining screws (removed in step 1).
WARNING: Do not operate tool without blade cover installed.
ALIGNMENT PLATE
When joining narrow material, it will be necessary to install the alignment
plate (A) Fig. 15, (furnished with tool). The alignment plate provides added
support for narrow material, and has index marks to aid in centering the cut
in the narrow material. Index marks are provided for 1
material. Install alignment plate as follows:
CAUTION: Disconnect tool from power source.
1. Align alignment plate with fence (see Fig. 15).
2. Slide alignment plate onto fence until it is seated (see Fig. 16).
A
NOTE: When alignment plate is installed: increase tool depth setting
by 5 " (to allow for thickness of the alignment plate).
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32
3. To remove alignment plate: lift lightly on the alignment plate and slide off
fence.
"DOUBLE" BISCUITS
The alignment plate may also be used as a spacer to produce a groove that
is wide enough to accept two biscuits. After cutting a groove (or a group of
grooves), in the normal fashion: install the alignment plate and repeat the
cuts. This will double the width of each groove so that two biscuits can be
installed in each groove.
DUST PORT
The tool is equipped with a dust port (A) Fig. 17. A large volume of sawdust
and chips will be exhausted from this port during tool operation. A directional
dust nozzle and a dust bag are furnished with the tool. A standard 1" vacuum
hose can also be connected to the dust port to facilitate dust collection.
CAUTION: Do not operate the tool without a directional nozzle, or a dust
bag, or a vacuum hose attached to the dust port.
Directional Dust Nozzle
The directional nozzle pushes onto the dust port (see Fig. 17). The nozzle can
be rotated 360° to direct the dust and chips away from the operator.
2/12/02 2:38 PM Page 11
ASSEMBLY
(For Narrow Stock)
Fig. 15
11
1
" wide, and 2" wide
/
2
Fig. 16