
12 13
Operation
Out of Beam Indication. The receiver has an Out Of Beam (OOB) indication
that can be turned on or off. When it is on, the LED grade display will indicate if
the receiver has moved beyond the vertical laser reception range. A sequence
of LED's will indicate which direction to move the blade or cutting edge to pick
up the laser beam. The sequence will indicate to move the edge down if it is
raised above the beam or to move the edge up if it is lowered below the beam.
The sequence will stop as soon as a laser signal is received. Otherwise it will
shut off after two minutes.
Low Battery Warning. The receiver has a low battery warning
LED combination that is used when batteries are installed.
During normal operation with good batteries, the LED's are
off. When the batteries become low, the LED's will begin
to flash as a warning. The unit will operate as normal, with approximately 90
minutes of battery life remaining.
When the batteries are too low for proper operation, the LED's will be on
continuously and the four corner grade display LED's will flash. The unit will no
longer receive laser signals and the batteries must be replaced (or recharged
if using rechargeable batteries).
The warning does not operate when the receiver is connected to machine
power via a power cable.
The factory default setting is Out of Beam Indication on. To change the indication
setting, press the two outside switches (Blade Tilt and Display Brightness) at the
same time. The LED display will show a sequence inward toward on-grade when
the indication is on or outward from on-grade to confirm the indication is off.
Sequence to
lower implement
Sequence to
raise implement
Out of Beam Indication ON
Installation - General
Set up the laser in a convenient, safe location. Please refer to your laser
operator's manual. Ensure the laser is on a stable tripod. On windy, gusty days
it may be advisable to tie down or weigh down the tripod to make the laser
beam more stable.
Operating distances are dependent upon the rotating laser power. The receiver
can pick up the beam from all directions (360°), but still requires a clear line of
sight between the laser and receiver.
If your laser has selectable rotation speeds, select a high rotation speed. The
receiver can process speeds up to 1200 RPM.
To mount the receiver on a mast, turn both the top and bottom knobs
counterclockwise until the mounting clamps in back open enough to fit around
the mounting mast. Place the receiver on the mast. The receiver will mount
to round tubing that has a 1.66" to 2.00" outside diameter (42 to 50 mm) or to
1-1/2" (38 mm) square tubing. Turn the knobs clockwise to tighten. Loosen the
two clamps to remove the receiver from the mast.
WARNING: Follow all safety precautions per the machines operator's
manual and follow all excavation and trench safety requirements
and practices.
Typical dozer
installation
Typical excavator
installation
The blade tilt and plumb indications are measured
inside the receiver. The blade tilt indicates side-to-
side position. Plumb indicates front-to-back position.
Masts and receivers must be properly aligned to the
machinery for accurate indications.
Assure dozer masts are aligned vertical both front-
to-back and side-to-side with the blade when the
blade is in its normal operating position.
For excavation, typically the mast points towards
the bucket teeth. Additional installation details can
be found on page 15.
Plumb axis
rotation
Blade tilt
axis rotation
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