ATI Technologies Lawn Mower - Manual (Page 18)

SYSTEMS FEATURES AND BASIC OPERATION
7. Align the plane of laser light.
a. Align the bottom of a Grade Rod to the
mark on the far grade stake.
b. Check the Rod Eye Receiver.
• If the Rod Eye Receiver indicates
“On Grade,” the plane of laser light is
aligned at the correct slope.
• If the Rod Eye Receiver indicates the
plane of laser light is too high or too
low, have a second person rotate the
Rotating Laser on the tripod in small
steps until the Rod Eye Receiver indi­
cates “On Grade.”
NOTE: If it was necessary to rotate the Rotating
Laser a significant amount at the far stake,
then the original reading at the near stake
may be out of tolerance. Check the set­
ting again and make minor adjustments as
required.
8. Bench the machine.
NOTE: If needed, check the elevations on both the
plane of laser light and the grade stake
elevations by setting the bottom of the
Grade Rod at any stake’s grade mark and
checking the Rod Eye Receiver for the “On
Grade” indication.
benching and operating
Before benching, the plane of laser light must be
set at its proper slope. Benching is the process of
setting the relationship between the Laser Sensor
and the Rotating Laser or benchmark. Failure to
properly bench the system before grading will
result in an unacceptable grade.
The goal is to have the Laser Grading Box approxi­
mately 1/2 full during operation. If, during rough
grading, a lot of material needs to be removed
from a site, the Laser Sensor should be set several
inches higher than finished grade. As material is
removed, the Laser Sensor can be lowered and the
site regraded. This may need to be repeated several
times until finished grade is achieved.
Benching
1. Move the machine to an area which is close
to finish grade or, using the manual controls
on the control system, grade a small area
close to finish grade.
NOTE: Finish grade can be checked several times
during the grade process to “zero” in on
final grade.
2. If equipped, set the automatic control system
to manual.
3. Turn the Laser Sensor and Rotating Laser
ON.
4. If equipped, set the deadband tolerance to
the minimum possible.
NOTE: Use narrow deadbandfor benching.
5. Adjust the height of the Laser Sensor until it
is “On Grade”. For:
Telescoping Masts, loosen the locking knob
on the mast and raise or lower the Laser
Sensor. Tighten the locking knob when
correct.
Non-Telescoping Masts, loosen the mount­
ing knob for the Laser Sensor and raise
or lower the Laser Sensor. Tighten the
mounting knob when correct.
NOTE: Most materials graded must later be
compacted. To compensate for the com­
pacting distance, lower the Laser Sensor.
This raises the cutting edge by the same
distance. The distance the Laser Sensor is
lowered depends on the material.
Benching with a Rod Eye
To bench the Laser Sensor follow the process listed
below:
1. Turn on the Rotating Laser. Attach a Rod
Eye to a measuring pole and turn on. Set the
base of the measuring pole on the benchmark
and adjust the measuring pole so the Rod
Eye emits a solid “On Grade” tone (com­
pensate for slab thickness and compaction if
needed).
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