ATI Technologies Lawn Mower Lawn Mower User Guide

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COPYRIGHT 2007 by  
ATI Corporation  
New Holland, PA 17557 U.S.A.  
DISCLAIMER  
THE INFORMATION IN THIS MANUAL IS PROVIDED TO PROMOTE THE SAFE USE OF, AND  
ASSIST THE OPERATOR IN ACHIEVING THE BEST PERFORMANCE FROM, THE PRODUCTS  
DESCRIBED HEREIN WHEN USED FOR THE INTENDED APPLICATION.  
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MODELS  
Part Model  
Number Number  
Description  
315-067-000  
315-068-000  
315-069-000  
PL72  
PL84  
PL96  
Box, Grader, Para-Level, Single, 6', Cylinder Only  
Box, Grader, Para-Level, Single, 7', Cylinder Only  
Box, Grader, Para-Level, Single, 8', Cylinder Only  
000-166-407  
000-166-448  
Kit, Hydraulic, Single MEI/Mikrofyn, Includes Valve Assembly, Hoses, Fittings  
and Solenoid Cable  
Kit, Hydraulic, Single Topcon, Includes System Five Remote, Power and  
Solenoid Cable (does not include Sensor Cable)  
000-166-483  
000-200-149  
Kit, Hydraulic, Single Trimble, Includes Valve Assembly, Hoses, and Fittings  
Kit, Cables, Topcon System Five, Includes Sensor/Solenoid Cable and Power/  
Remote Cable  
000-200-148  
315-575-000  
Kit, Cables, Trimble, Includes Junction Box with Solenoid Cable and Remote,  
Sensor Cable and Power Cable  
Tractor Hitch  
NOTE: Optional accessories, Scarifier Assembly, installation and parts manual can be obtained from ATI  
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TAbLE Of CONTENTS  
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SAfETY INfORMATION  
This manual is furnished to you, the owner/opera-  
• Always allow for clearance under the cutting  
edge of the machine when tuning the system  
or when switching to automatic control.  
tor, as a guide to get the greatest benefit from your  
Grading Box. ATI Corporation wants you to be  
able to get the most use out of your Grading Box  
through safe and efficient operation.  
Insufficient clearance could cause the machine  
to lift itself off the ground as its cutting edge  
attempts to achieve the programmed slope.  
Before attemptꢀng to operate the Gradꢀng Box,  
carefully read all sections of this manual. Be sure  
that you thoroughly understand all of the safety  
information and operating procedures.  
• Never adjust the position of the Laser Sensor  
when the system is in automatic control.  
• Never perform service work on your machine  
or the automatic control system when the  
system is in automatic control.  
SAfETY PRECAUTION DEfINITIONS  
Dangers, Warnings, Cautions, and Notes are  
strategically placed throughout this manual to fur-  
ther emphasize the importance of personal safety,  
qualifications of operating personnel, and proper  
use of the grading box in its intended application.  
These precautions supplement and/or complement  
the safety information decals affixed to the unit and  
include headings that are defined as follows:  
• Install all safety panels and guards before  
operatꢀng your equꢀpment.  
• Stay clear of all moving parts when the  
machine is in operation.  
• Keep all people clear of the machine when it is  
runnꢀng.  
• Keep feet and other body parts from under the  
cutting edges of the machine at all times.  
• Read and comply with all safety recommenda-  
tions of your Tractor/Skid Steer manufacturer,  
as outlined in its operator and service manuals.  
Indicates an imminently hazardous situation  
which, if not avoided, will result in death or  
serious injury.  
NOTE: References made to left, right, front, and  
rear are those directions viewed from be-  
hind the power unit and grading box.  
Indicates a potentially hazardous situation or  
practice which, if not avoided, could result in  
death or serious injury.  
NOTE: Some equipment depicted in illustrations  
may not reflect exact production model  
configurations.  
NOTE: All safety, operating, and servicing infor-  
mation reflects current production models  
at the time of publication of this manual.  
Indicates a potentially hazardous situation or  
practice which, if not avoided, will result in  
damage to equipment and/or minor injury.  
NOTE: ATI Corporation reserves the right to  
discontinue models at any time, change  
specifications, and improve design without  
notice and without incurring obligation on  
goods previously purchased and to discon-  
tinue supplying any part listed, when the  
demand does not warrant production.  
NOTE: Indicates an operating procedure, practice.  
etc., or portion thereof, which is essential  
to highlight.  
• Always use caution and safe operating prac-  
tices when operating this equipment.  
• Always set the Automatic/Manual Switch on  
the Control Panel to MANUAL before leavꢀng  
the operator’s seat or whenever the machine is  
not movꢀng.  
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WARRANTY  
This Laser Grading Box is designed and manufac-  
Laser Controls, Vendored Components and Control  
Valve Parts are warranted separately by their  
respective manufacturers.  
tured to high quality standards. ATI Corporation,  
therefore, guarantees this Laser Grading Box to be  
free from defect in workmanship and materials for  
one (1) year from purchase date. If the machine is  
used for rental purposes, the warranty is limited to  
ninety (90) days.  
Does not cover normal wear or failure due to  
hydraulꢀc oꢀl contamꢀnatꢀon.  
Misuse, abuse, misapplication, and unauthorized  
alterations will void this warranty.  
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LIST Of ILLUSTRATIONS  
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NOTES  
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SYSTEMS fEATURES AND bASIC OPERATION  
NOTE: It is the responsibility of the dealer or  
owner to select, install, and properly oper-  
ate an automatic control system on this  
Laser Grading Box within the guidelines of  
this manual.  
PURPOSE  
The Level Best Laser Grading Box is a cost-effi-  
cient method for fine grading. Various capacities  
sized to fit the skid steer or tractor with a choice of  
automatic control systems are available.  
Laser-guided depth control provides unmatched  
measurement of plane from a single Rotating Laser.  
Grade information from a Rotating Laser is pro-  
cessed and automatically directs the grading box’s  
hydraulics to maintain the elevation of the cutting  
edge.  
The Laser Grading Box is intended to operate with  
an automatic control system providing accurate  
grade control. If desired, the Laser Grading Box  
can be operated wꢀthout an automatꢀc control  
system in one of two ways:  
Without any Valve/Manifold - The cylinder can  
be connected directly to the tractor or skid  
steer and the Laser Grading Box operated  
using the tractor or skid steer valve. Flow to  
the hydraulic cylinder is restricted to improve  
control. However, movement of the cuttꢀng  
edge can be coarse.  
Most automatic control systems can operate auto-  
matꢀcally or manually.  
• In manual control, the operator watches an  
indicator on the Laser Sensor or Control Panel  
and uses the controls to keep the box “On  
Grade”.  
• In automatꢀc control, the automatꢀc control  
With the Valve and No Control System - A  
switch can be installed to operate the electric  
valve from the tractor or skid steer, providing  
fine control of cylinder movement. However,  
raising and lowering of the cutting edge is  
dependant upon operator attentiveness and  
accuracy.  
system controls the box’s hydraulic cylinder to  
keep the box “On Grade”.  
COMPONENTS  
The control system consists of 4 components:  
Rotating Laser – Provides a reference Plane of  
Laser Light over the job site (refer to Figure 1).  
Light plane may be level or set at an angle to  
match the slope of the ground.  
For the most accurate control and ease of operation,  
an automatic control system is used and recom-  
mended. This manual is for a skid steer or tractor-  
mounted, single cylinder Para-Level Laser Grading  
Box with customer-supplied laser controls.  
Laser Sensor – Mounted at a specific height on a  
mast on the Laser Grading Box, it determines  
the difference in depth based on the Plane of  
Laser Light.  
Figure 1. Plane of Laser Light with Components of the Automatic Control System  
1
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SYSTEMS fEATURES AND bASIC OPERATION  
Control Panel – Contains the logic of the auto-  
matic control system, processing data from  
the Laser Sensor and, if equipped, switches  
controlled by the operator.  
Use of any laser on a worksite is controlled by  
OSHA regulations found at 29 CfR 1926.54.  
be familiar with these regulations before using  
any laser beacon used in conjunction with this  
system. Review and understand all literature  
provided with the Laser System before operat-  
ing.  
Valve Assembly – Wired to the Control Panel,  
the valve meters hydraulic oil to the hydraulic  
cylꢀnder for depth control.  
Control Panel  
The complexity of the Control Panel varies from  
system to system. Refer to the specific brand of  
system for specific details.  
Laser protection devices must be provided  
to all workers in the area if the laser system  
exceeds five (5) milliwatts. Refer to the literature  
provided with the system to determine the  
power output. If unsure of the strength of the  
laser system, anti-laser eye protection should be  
provided to all workers.  
Rotating Laser  
The Rotating Laser is the unit that creates the plane  
of laser light detected by the Laser Sensor. Most  
Rotating Lasers transmit a focused plane of laser  
light approximately 1000 ft. (300 meters). They  
are available in single grade, dual grade, and steep  
slope versions. They can be quickly and easily  
aligned to job site requirements without compli-  
cated calculation of angles.  
Laser Sensor  
The Laser Sensor detects the laser light generated  
by Rotating Lasers. The Laser Sensor sends to the  
Control Panel the location of the plane of laser  
light. The Control Panel then has the valve assem-  
bly drive the Grading Box's hydraulics accordingly.  
A dual slope Rotating Laser can be configured  
for level, single slope, or dual slope applications.  
Sꢀmply enter the requꢀred percent of grade and  
align the Rotating Laser to the axis (direction) to be  
graded.  
The Laser Sensor is mounted on the mast pole  
dꢀrectly above the cuttꢀng edge of the box.  
• Percent of Grade. The change ꢀn elevatꢀon for  
Cables  
every 100 feet (30 meters) graded.  
Cables connect the various components together  
into a system. A single cable is provided with  
“open” wires at one end for attachment to the  
automatic control system or an electric switch. The  
other end has a 3-pin connector that mates with the  
hydraulꢀc valve connector.  
• Slope. The change ꢀn elevatꢀon per foot  
(meter).  
Never look directly into a laser light or serious  
injury to the eye may occur. In general, inciden-  
tal exposure of the laser to the eye will not do  
damage. However, avoid looking into the beam  
whenever possible. Use a target for viewing the  
laser spot.  
All cables must be secured with adequate cable  
length to avoid pinching, stretching and tight  
bending. Do not clamp cables to pipes or hoses  
that may generate high heat.  
2
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SYSTEMS fEATURES AND bASIC OPERATION  
Figure 2. Valve Connection Details  
Hydraulic Valve  
EqUIPMENT SET-UP  
The hydraulic valve is mounted on the frame of the  
Laser Grading Box. It is an electrically-actuated  
double-acting, single-section valve. Hoses and  
quick-couplers to attach it the tractor’s auxiliary  
hydraulics are included with the hydraulic kit.  
Skid Steer Grading Box  
1. Provꢀde power to the Control Panel from the  
skid steer's electrical system. Usually this  
involves a direct hookup to the battery.  
2. The Laser Grading Box should be positioned  
on a level area for attaching to the skid steer.  
Start the skid steer and drive up to the attach-  
ment plate and secure per the manufacturer’s  
directions. The Level Best quick-attach plate  
is designed to be universal.  
An electrical cable is also provided. One end of the  
cable has a 3-pin connector for the valve. The other  
is open and can be attached to the Control Panel of  
the automatic control system as required. Refer to  
Figure 2 for wiring details of the cable and conduc-  
tor functions.  
The valve accepts a 12 VDC proportional current  
signal from the Control Panel.  
NOTE: If the skid steers pins do not fit securely  
into the rectangular holes at the base of  
the attachment plate, these holes can be  
notched larger to accept the pins.  
If you requꢀre a proportꢀonal tꢀme or 24 volt valve,  
contact ATI Corporatꢀon.  
Figure 3. Components of the Automatic Control System on a Skid Steer  
3
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SYSTEMS fEATURES AND bASIC OPERATION  
3. After installation, ensure that the Laser  
Grading Box is level. The loader arms must  
Cables must be securely fastened and pinch/rub-  
points eliminated. Do not fasten to hydraulic  
lines which may operate at high temperatures.  
Ensure sufficient cable length to allow move-  
ment of the machine.  
be completely lowered and the bucket cylin-  
ders set so the tires of the Laser Grading Box  
are on the ground.  
Verify that the Laser Grading Box is level by  
observing that the main frame is horizontal  
to the ground. Turn the skid steer engine  
OFF when connected.  
7. Connect the various cables to the control  
system components.  
4. Mount the Control Panel on the bracket  
8. If possible, set the automatic control system  
to manual mode to prevent unꢀntended  
movement of the Laser Grading Box.  
attached to the hydraulꢀc valve.  
Always have system in Manual setting when not  
operating the skid steer.  
Tractor Grading box  
1. Provꢀde power to the Control Panel from  
the tractor's electrical system. Usually this  
involves a direct hookup to the battery.  
2. The Laser Grading Box should be positioned  
on a level area for attachꢀng to the tractor.  
Start the tractor and back up to the Laser  
Gradꢀng Box. Attach the unꢀt wꢀth the hꢀtch  
pins supplied.  
Fꢀgure 4. Control Panel Mountꢀng  
5. Connect the Laser Grading Box’s hydraulic  
hoses with quick couplers to the auxiliary  
hydraulic ports of the skid steer. The Laser  
Grading Box’s hydraulic manifold is marked  
“P” and “T” where the pressure and return  
(tank) hoses connect.  
3. After installation, ensure that the Grading  
Box is level. Set the pitch of the Laser  
Grading Box by adjusting the top and lower  
links.  
Verify that the Laser Grading Box is level by  
observing that the main frame is horizontal  
to the ground. Turn the tractor engꢀne OFF  
when connected.  
NOTE: “P” means pressure (supply) and “T”  
means tank (return). Refer to the skid steer  
Owners Manual for identifying the “P”  
and “T” Auxiliary Hydraulic Ports.  
4. Mount the Control Panel on the rꢀght rear  
fender of the tractor or other easily acces-  
sible location.  
6. Insert the mast pole in the holder until it rests  
at the bottom of the tube. Tꢀghten the tee  
handle to secure the mast. Clamp the Laser  
Sensor near the top of the mast so it is higher  
than any local obstruction including the skid  
steer cab or fall protection devices. (Refer to  
Figure 3).  
5. Connect the Laser Grading Box’s hydraulic  
hoses with quick couplers to the tractor  
quick couplers. The Laser Grading Box’s  
hydraulic manifold is marked “P” and “T”  
where the pressure and return (tank) hoses  
connect.  
4
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SYSTEMS fEATURES AND bASIC OPERATION  
Figure 5. Components of the Automatic Control System on a Tractor  
NOTE: “P” means pressure (supply) and “T”  
means tank (return). Refer to the tractor  
Owners Manual for identifying the “P”  
and “T” Auxiliary Hydraulic Ports.  
JOb SITE SET-UP  
The following are guidelines for setting up a  
Rotating Laser for both level job sites and sloped  
job sites:  
6. Insert the mast pole in the holder until it  
rests at the bottom of the tube. Tighten the  
tee handle to secure the mast. Clamp the  
Laser Sensor near the top of the mast so it is  
higher than any local obstruction including  
the tractor cab or fall protection devices.  
(Refer to Figure 5).  
• Choose a location for the Rotating Laser where  
obstructions, such as trees and buildings, can  
not block the plane of laser light. The Laser  
Sensor needs to be able to sense the plane of  
laser light at all times.  
• Whenever possible, set up the Rotating Laser  
and the Laser Sensor at a height above the  
machine’s cab. This prevents the cab or roll-  
over structure from blocking the plane of laser  
light as the machine moves around the job  
sites.  
Cables must be securely fastened and pinch/rub-  
points eliminated. Do not fasten to hydraulic  
lines which may operate at high temperatures.  
Ensure sufficient cable length to allow move-  
ment of the machine.  
• Be sure the Rotating Laser and Laser Sensor  
are operating in compatible modes with a head  
speed that is recognized by the other device.  
7. Connect the various cables to the control  
system components.  
8. If possible, set the automatic control system  
to manual mode to prevent unꢀntended  
movement of the Laser Grading Box.  
Always have system in Manual setting when not  
operating the tractor.  
5
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SYSTEMS fEATURES AND bASIC OPERATION  
Set-Up for Level Grading  
If the job site is to be level, the set-up of the  
Rotating Laser is simple. Since no slope is required  
in either axis, the Rotating Laser does not need to  
be aligned. The Rotating Laser will provide a level  
plane of laser light in all directions.  
1. Locate the Rotating Laser following the  
guidelines above.  
2. Apply power to the Rotating Laser. Level the  
Rotating Laser (some Rotating Lasers will  
automatically level, others will need manual  
adjustment).  
Figure 6. Method One: Align Rotating Laser with Grade  
Stakes  
4. Set the counter on the Rotating Laser for  
both axis to 0.0000% (If needed, see the  
Rotating Laser Operation Manual).  
3. Set the counters for both axis at 0.000% (If  
needed, see the Rotating Laser Operation  
Manual).  
5. Roughly align one of the axis to the grade  
stakes by sighting over the top of the  
Rotating Laser (Refer to Figure 7).  
4. Bench the machine. See the “Benching and  
Operating” procedure in this section.  
Set-Up for Sloped Grading  
If the job site is to be graded for a single or dual  
slope, the Rotating Laser requires its axis to be  
aligned for the job site. The Rotating Laser will  
then provide a plane of laser light at the required  
slope(s).  
The following procedures are for two typical  
examples of job sites requiring sloped grades.  
Remember, each job site is unique, so consider the  
following methods as guidelines and not as the only  
methods possible.  
Fꢀgure 7. Sight Over Rotating Laser  
6. Align the plane of laser light.  
a. Set a grade rod wꢀth Rod Eye Receꢀver  
on the far grade stake and adjust the rod  
until the Rod Eye Receiver indicates “On  
Grade.”  
Method One:  
1. Set a minimum of two grade stakes exactly  
in line with one of the axis to be graded  
(Refer to Figure 6).  
b. On the axis not aligned with the stakes,  
enter on the Rotating Laser: 5.000%.  
Allow the Rotating Laser to level itself to  
this new position, if needed.  
2. Place the Rotating Laser in line with the two  
grade stakes.  
3. Switch on the Rotating Laser. Level the  
Rotating Laser (some Rotating Lasers will  
automatically level, others will need manual  
adjustment).  
c. Check the Rod Eye Receiver again.  
• If the Rod Eye Receiver indicates  
“On Grade”, the plane of laser light is  
alꢀgned correctly.  
6
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SYSTEMS fEATURES AND bASIC OPERATION  
• 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.”  
4. Roughly align one of the axis to the grade  
stakes by sighting over the top of the  
Rotating Laser (Refer to Figure 7).  
5. Set both the counters on the Rotating Laser  
to the requꢀred percent of grade (If needed,  
see the Rotating Laser Operation Manual).  
7. Enter on the Rotating Laser the required  
percent of grade for each axis and allow the  
Rotating Laser to level itself again.  
8. Bench the machine. See the “Benching and  
Operating Your Machine” procedure in this  
section.  
Method Two:  
NOTE: This procedure requires that the elevations  
of the grade stakes are correct and aligned  
to the slope or percent of grade required.  
1. Set a minimum of two surveyed grade  
stakes. The stakes must have elevation  
ꢀnformatꢀon.  
2. Place the Rotating Laser a few feet (meters)  
behind the first grade stake and in line with  
one of the far grade stakes (it is not critical  
to align the Rotating Laser exactly). (Refer  
to Figure 9.)  
Figure 9. Method Two: Align Rotating Laser with Grade  
Stakes  
NOTE: The Grade Rod must be held plumb for  
each of the readings taken in the following  
steps.  
NOTE: Follow the guidelines at the beginning  
of this section when placing the Rotating  
Laser.  
6.  
Establish the H.I. (height of the instrument)  
for the plane of laser light.  
3. Switch on the Rotating Laser. Level the  
Rotating Laser.  
a. Alꢀgn the bottom of the Grade Rod to the  
mark on the near grade stake.  
b. Adjust the Rod Eye Receiver up and down  
until it indicates “On Grade.”  
c. Adjust the Rod Eye Receiver for any cut  
or fill amount indicated by the grade stake.  
• If the grade stake shows a cut, extend  
the Grade Rod and Rod Eye by the  
amount shown as a cut.  
• If the grade stake shows a fill, lower the  
Rod Eye by the amount shown as fill.  
Figure 8. Grade Stake with Elevation Mark  
7
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SYSTEMS fEATURES AND bASIC OPERATION  
benching  
7. Align the plane of laser light.  
a. Alꢀgn the bottom of a Grade Rod to the  
1. Move the machine to an area which is close  
mark on the far grade stake.  
to finish grade or, using the manual controls  
on the control system, grade a small area  
close to finish grade.  
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.  
NOTE: Finish grade can be checked several times  
during the grade process to “zero” in on  
final grade.  
• 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.”  
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: 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.  
NOTE: Use narrow deadband for 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.  
8. Bench the machꢀne.  
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 stakes grade mark and  
checking the Rod Eye Receiver for the “On  
Grade” indication.  
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 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.  
benching with a Rod Eye  
To bench the Laser Sensor follow the process listed  
below:  
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.  
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).  
8
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SYSTEMS fEATURES AND bASIC OPERATION  
2. Find an area to be graded that is close to  
specified grade. Start the skid steer or tractor,  
engage the auxiliary hydraulics and move  
the unit to that location. Manually raise or  
lower the Laser Grading Box’s cutting edge  
until it is even with the bottom of the mea-  
suring pole when the Rod Eye is emitting the  
“On Grade” tone or resting on the ground if  
already at grade.  
• In some situations, the automatic control  
system may require a cut deeper than the  
machꢀne can handle. The machꢀne may  
lose traction, stall the engine, or the wheel  
frame wꢀll be lꢀfted off the ground to the  
maximum stroke of the cylinder as the  
cutting edge tries to reach finished grade.  
If this occurs, set the Auto/Manual Switch  
to MANUAL and use the Raise/Lower  
Switch to raise the cutting edge until the  
machine can push the material. Make  
multiple passes to cut the area to closer to  
finished grade and then go back to AUTO  
control. This allows the high spots to be  
gradually removed.  
3. Making sure the automatic control system is  
set to manual and the deadband tolerance is  
at its minimum, move the Laser Sensor to a  
height on the mast pole where it indicates the  
beam is in the “On Grade” position and is  
unobstructed by any object.  
Operation  
NOTE: In rough grading situations, the automatic  
control system can usually operate as an  
“Indicate Only” system and the machine  
controlled manually. After the area is rough  
graded, return to automatic control.  
After the Laser Grading Box is connected and the  
automatic control system is calibrated, operation  
can begꢀn.  
The operational goal is to drive over the area to  
be graded with the box 1/2 full of material and the  
Control Panel’s Green Light always illuminated.  
4. After several passes with the Laser Grading  
Box, stop and turn off the skid steer or trac-  
tor. Place the base of the measuring pole on  
the graded area check grade elevation.  
1. When seated in the Operator’s seat, start the  
skid steer or tractor and set the automatic  
control system to operating in automatic  
mode.  
5. After a rough grade is achieved, reduce the  
deadband tolerance to meet the job tolerance  
requirements. With a tighter deadband, the  
speed of the skid steer or tractor must be  
decreased for optimum finish.  
2. If equipped, set the deadband tolerance to a  
large value.  
NOTE: Most materials graded must later be com-  
pacted. To compensate for the compact-  
ing distance, lower the Laser Sensor. This  
raises the boxs cutting edge by the same  
distance. The distance the Laser Sensor is  
lowered will depend on the material.  
3. Drive the machine forward or reverse (The  
Para-Level Grading Box has front and rear  
cutting edges). The automatic control system  
constantly senses the plane of laser light  
to maꢀntaꢀn the cuttꢀng edge of the box at  
the requꢀred elevatꢀon. Note the followꢀng  
during operation:  
9
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TROUbLESHOOTING  
SyMPtoM  
PoteNtial CauSe  
ReMeDy  
Apply power.  
Laser Grading Box does not raise Control Panel not turned on.  
or lower.  
No hydraulic flow to Laser Grad- Ensure hydraulic control handle  
ing Box.  
of skid steer or tractor is in  
correct position.  
Ensure auxiliary hydraulics are  
ON or in continuous flow  
mode.  
Cables not connected correctly.  
Refer to the automatic control  
system documentation.  
Move directional valve spool  
manually using the overrides  
on the end of the directional  
valve.  
be sure to stay clear of any  
moving parts of the Laser  
Grading box.  
If the Laser Grading Box  
moves, refer to Electrical  
problems. If the Laser Grading  
Box does not move, refer to  
Hydraulic problems.  
Electrical Problems  
Hydraulic problems.  
Refer to the automatic control  
system documentation.  
Confirm hydraulic flow through  
the manifold and returning to  
the power source through the  
“T” hose.  
Contact ATI Corporation for help  
troubleshooting the hydraulic  
manifold.  
Laser Grading Box moves in  
opposite direction.  
Hydraulic flow reversed.  
Confirm the pressure is going in  
the “P” port.  
Verify control handle is moving in  
desired direction.  
10  
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TROUbLESHOOTING  
SyMPtoM  
PoteNtial CauSe  
ReMeDy  
Box has trouble staying on grade. Rotating Laser out of range.  
Ensure Laser Sensor is within  
specified operating range of  
Rotating Laser.  
Laser beam being reflected.  
Ensure Rotating Laser’s light is  
not reflecting off other surfaces  
(windows, windshields, mir-  
rors, etc.) causing multiple  
readings by the Laser Sensor.  
Multiple laser beams.  
Ensure that there are no other  
lasers operating on the job site  
or nearby.  
Laser deadband set too narrow.  
Ensure the deadband tolerance is  
set for rough grading.  
Travel speed is too fast for grade  
tolerance.  
Slow down.  
Hydraulic response too quick.  
Decrease the Gain Selection  
Switch setting.  
Hydraulic flow reversed.  
Confirm the pressure is going in  
the “P” port.  
11  
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SPECIfICATIONS AND MAINTENANCE  
SPECIfICATIONS  
Dimensions  
Model  
Pl72  
Pl84  
Pl96  
72 in.  
84 in.  
96 in.  
Box Width  
(183 cm)  
74.8 in.  
(190 cm)  
(213 cm)  
86.8 in.  
(220 cm)  
(244 cm)  
98.8 in.  
(251 cm)  
Overall Width  
Total Length  
66 in. (168 cm)  
11.5 ft3  
(0.33 m3)  
7.0 ft3  
(0.20 m3)  
1530 lbs.  
(694 kg)  
13.4 ft3  
(0.38 m3)  
8.0 ft3  
(0.23 m3)  
1590 lbs.  
(721 kg)  
15.3 ft3  
(0.43 m3)  
9.0 ft3  
(0.25 m3)  
1650 lbs.  
(739 kg)  
Box Capacity, Front  
Box Capacity, Rear  
Weight  
12  
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SPECIfICATIONS AND MAINTENANCE  
Calibration  
MAINTENANCE  
Perform periodic calibration checks of the Rotating  
Laser System as outlined in its Operation Manual  
to ensure accurate performance.  
The rugged and durable automatic control system  
is built to last, but as with all equipment, a few  
minutes of routine care, maintenance, and cleaning  
can extend the life of the system.  
SERVICE  
Storage and Transport  
If the automatic control system is not functioning  
properly, the first step is to determine the problem  
component. Use the Troubleshooting Chart to  
determine possible causes and remedies.  
Most often the Laser Grading Box and its hydraulic  
controls remain on the machine. However, the  
Control Panel, Laser Sensor, Coiled Sensor Cable  
and Solenoid Cable should be stored in a safe,  
protected place when not in use. Protect the cable  
connections by installing any covers supplied.  
Cables and Hoses  
The automatic control system is a highly sophis-  
ticated electronic system. Do not attempt repairs  
to the components. Contact your local dealer if  
you have any problems.  
Check all cables and hoses regularly for signs of  
wear and damage. Keep cable connections clean  
and free from dirt and corrosion. If a cable has been  
damaged, do not attempt to repaꢀr. Incorrect or poor  
connections can cause damage to your automatic  
control system.  
When applicable, check the hydraulic hoses. Look  
for areas where the hoses could rub against each  
other or another object as they expand and contract  
under pressure. Check the hydraulic fittings for  
tightness.  
Machine  
Check areas that affect the Automatic Control  
system function and accuracy, such as looseness or  
play in the cylinders or wear on the box’s cutting  
edge. Looseness in the connection to the tractor/  
skid steer, such as in the adaptor plate/3-point hitch,  
will cause inaccurate depth positioning.  
Also check the tractor/skid steer routinely for wear  
to its components, such as loader pins and 3-point  
linkage, ensuring it is operating properly.  
13  
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SPECIfICATIONS AND MAINTENANCE  
Fꢀgure 10. Lube and Maꢀntenance Chart  
14  
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REGISTRATION CARD  
by buying this product, you, the purchaser of this product, agree to the following:  
To the fullest extent permitted by law, the purchaser of this product shall indemnify and hold harmless ATI  
Corporation and its authorized dealer from and against claims, damages, losses and expenses, including  
but not limited to attorney’s fees, arising out of or resulting from the use of the product, provided that such  
claim, damage, loss or expense is attributable to bodily injury, sickness, disease or death, or to injury to or  
destruction of tangible property, but only to the extent caused by the negligent acts or omissions (Including  
but not limited to misuse or alteration of the product) of the purchaser, anyone directly or indirectly  
employed by the purchaser or anyone for whose acts the purchaser may be liable, regardless of whether or  
not such claim, damage, loss or expense is caused in part by a party indemnified hereunder.  
In claims against any person or entity indemnified under this agreement by an employee of the purchaser,  
anyone directly or indirectly employed by the purchaser or anyone for whose acts the purchaser may be  
liable, the indemnification obligations shall not be limited by a limitation on amount or type of damages,  
compensation or benefits payable by or for the purchaser under worker’s compensation acts, disability  
benefit acts or other employee benefit acts.  
CuStoMeR CoPy  
Dealer ____________________________________Date Installed ________________________  
Grading Box Model # ________________________Serial # _____________________________  
Control Panel Model # _______________________Serial # _____________________________  
Laser Sensor Model # ________________________Serial # _____________________________  
Dealer Name ___________________________________________________________________  
Street _________________________________________________________________________  
City, State, Zip _________________________________________________________________  
Telephone _________________________________Fax_________________________________  
Signature ______________________________________________________________________  
DETACH AND MAIL TO ATI CORPORATION • 250 EARLAND DRIVE • NEW HOLLAND, PA 17557  
or FAX to (717) 354-2162  
MaNuFaCtuReR’S CoPy  
Dealer ____________________________________Date Installed ________________________  
Grading Box Model # ________________________Serial # _____________________________  
Control Panel Model # _______________________Serial # _____________________________  
Laser Sensor Model # ________________________Serial # _____________________________  
Customer Name ________________________________________________________________  
Street _________________________________________________________________________  
City, State, Zip _________________________________________________________________  
Telephone _________________________________ Fax_________________________________  
Signature _____________________________________________________________________  
15  
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