Porter-Cable 3700L Instruction Manual page 16

TO SET THE LEFT AND RIGHT KERF ADJUSTMENT
1. Use the 1/8" hex wrench to turn the left or right kerf
adjustment screws and set the laser lines to either side
of the test cut (Fig. G). To adjust the left line, turn the
left kerf adjustment screw counter-clockwise to move
the line toward the blade and clockwise to move the
line away from the blade. To adjust the right line turn the
right kerf adjustment screw counter-clockwise to move
the line toward the blade and clockwise to move the line
away from the blade. (Fig. H)
Observe the CAUTION label (L) Fig. H.
2. Remove the padlock and use the saw normally.
TwinLaser™ MAINTENANCE
For best laser performance, perform the following maintenance regularly:
Disconnect the machine from the power
source!
1. Carefully clean sawdust from each laser lens (A) Fig. J
with a cotton swab (B). Do not use solvents of any kind
since they may damage the lens. Avoid touching sharp
points of the saw blade with your hands or fingers.
Dust build-up can block the laser and prevent it from
accurately indicating the line-of-cut.
2. Remove the blade from the saw and clean pitch build-
up from the blade (Fig. K) Pitch build-up can block the
laser and prevent it from accurately indicating the line-
of-cut.
ADJUSTING LOWER BLADE GUARD
After an extended period of use, the movable lower blade
guard (A) Fig. 32 may not operate smoothly when the
cuttinghead is lowered. You can correct this by adjusting
the nut (B) until the lower blade guard (A) moves freely
Do not over-tighten the nut as this can
make the guard hard to move.
MACHINE USE
TYPICAL OPERATIONS AND HELPFUL HINTS
1. Before cutting, make certain the cutting arm and table
are at their correct settings and firmly locked in place.
2. Place the workpiece on the table and hold or clamp
it firmly against the fence. Fig. 33 illustrates the work
clamp (A). The clamp (A) can also be used on the right
side of the machine.
3. If the position or size of the workpiece
causes your hand to be in the "Hazard Zone", use
the work clamp to secure the workpiece. Keep your
hands out of the "Hazard Zone".
4. For best results, cut at a slow, even cutting rate.
5. Never attempt freehand cutting (wood that is not held
firmly against the fence and table).
LEFT LASER
ADJUSTMENT
SCREW
A
B
.
16 16
L
Fig. H
Fig. J Fig. K
A
B
Fig. 32
A
Fig. 33
RIGHT LASER
ADJUSTMENT
SCREW