Porter-Cable 3700L Instruction Manual page 15

NOTE: The "ON-OFF" switch for the laser beam is located on the handle at (A) Fig. B1.
NOTE: The laser beam is powered by 3 AA batteries (not supplied), located at (B) Fig. B1. Use a Phillips screwdriver
to remove the cover screw and insert the batteries.
B
A
TO CHECK FOR ROTATIONAL ALIGNMENT
The rotation of the lines is set parallel at the factory and permanently secured. No user adjustment is available for the
rotational alignment. Never twist the brass hex nuts in Fig. E.
TO CHECK FOR VERTICAL ALIGNMENT
1. The vertical alignment is set correctly when the lines do not move horizontally (sideways) as the saw head is raised and
lowered. If vertical alignment is correct, go to "TO SET LEFT AND RIGHT KERF ADJUSTMENT".
2. To adjust, turn the left and right kerf adjustment screws one half turn clockwise. Take off the laser unit cover by removing
the phillips screw on either side of the cover. (Fig. A).
3. Use the 1/8" hex wrench to turn the left or right vertical alignment set screws. If, as the saw head goes from a raised to
a lowered position, the laser line moves horizontally away from the blade, turn the vertical alignment set screw clockwise
to correct. If the laser line moves horizontally towards the blade, turn the vertical alignment set screw counter-clockwise.
(Fig. F)
4. Reinstall the cover removed in STEP 1, and continue to "TO SET LEFT AND RIGHT KERF ADJUSTMENT".
Fig. B1
Fig. D
Fig. F
L
A
Fig. B2
VERTICAL
ALIGNMENT
SET SCREWS
BRASS
HEX
NUT
15
PARTIAL
CUT
Fig. C
Fig. E
Fig. G