9
Plumb and Layout Setups • L4+
90
º
Fixed
beam
Rotating
beam
When the L4+ is in
vertical mode as
shown above, it is
capable of projecting a
vertical plane of rotating
laser light and a
simultaneous fixed beam
at 90
º
to the rotating plane.
Please refer to page 13 "vertical & line layout setup" for complete instructions
on aligning the vertical plane of light. The 90
º
beam provides a convenient
way to define right angle intersections for interior layout.
To transfer a point from floor to ceiling,
the accessory P1 plumb plate is used.
• Set the P1 over the point
• Set the L4+ on the P1
• Level the L4+ circular vial
• Switch the laser on
• A plumb beam is projected from the
top of the L4+, directly over the point.
Point to transfer
P1 plumb plate
Hole to center
P1 over point
Plumb beam
Vertical and Layout Setup • L4
Attach the laser to the W1 wall/vertical mount, adjusting the flat edge of the
base, where the laser mounts, to the red L4 "vert" mark. Remove the
receiver from the rod clamp, turn it on and set it on a far point. With the
beam window facing the laser, use the beam center notch for alignment.
Return to the laser/mount assembly and set the edge of the mount that is just
below the laser's beam exit slot over a near point. Note that the surface the
W1 is resting on should be reasonably level. Rough align the assembly by
holding the edge on the near point and sliding the base of the assembly until
the receiver's audio tone begins. Use the Y-axis leveling screw (now at the
bottom of the laser) to rough center the vertical vial (visible through the small
window now at the top of the laser).
The X-axis leveling knob (now near the top of the laser) is used as a fine
mechanical line control to center the beam plane on the receiver. The
receiver's audio tone will become constant when the beam is centered on the
receiver. Make a final adjustment of the vertical axis vial after the alignment
is done and re-align to the receiver if necessary. Note that the laser is
completely manual when in the
vertical mode and you will have to
check the bubble from time to
time to insure accuracy. Draw a
line along the edge of the W1 to
allow you to verify that the mount
has not been moved.
The W1 can also be tripod
mounted for vertical setups.
• Check the vertical vial and
your benchmarks regularly to
be sure your work will be
accurate. The L4 and L4+ have
been engineered to perform
vertical alignment up to two
stories high.
8
Shown on optional W1 mount.
See Page 12 for accessories.
