ATI Corporation Level Best Grader Blade Programming manual

ATI Corporation
New Holland, PA 17557
1-800-342-0905
www.levelbestgrading.com
OPERATORS & PARTS MANUAL
GRADER BLADE ATTACHMENT
ASN 4109 NOVEMBER 2021
CAT.# GB-108_OM&PM 11/01/21
1
23
4
2
2
2
2

i
COPYRIGHT 2021 by
ATI Corporation
250 Earland Drive
New Holland, PA 17557 U.S.A.
DISCLAIMER
THE INFORMATION INTHIS MANUALIS PROVIDEDTO PROMOTETHE SAFE USE OF,ANDASSIST
THE OPERATOR IN ACHIEVING THE BEST PERFORMANCE FROM, PARA-LEVEL GRADING BOX
DESCRIBED HEREIN, FOR THEIR INTENDED APPLICATIONS.
USING THIS DOCUMENT
This document is expected to be used as an electronic pdf document as well as a printed document. Various
software can be used to view the document, including Adobe®Acrobat Reader DC. Other pdf viewers are
available.
As an electronic document, various links are included to help you navigate the document and find the appli-
cable information. Links may be cross references within the document or an external link to an Internet
page. Links shown in blue, such as the link to the Acrobat Reader DC software in the preceding paragraph.
For an Internet link to work, the device must be connected to the Internet in some way. Data charges may
apply.
NOTE: Most pdf viewer software provides a command for previous view. In Acrobat Reader, for instance,
the previous view on the View/Page Navigation menu. Keyboard shortcuts are also available, such
as Alt+Left Arrow and Alt+Right Arrow for Previous View and Next View, respectively.
Table of Contents
Safety Information

ii
TABLE OF CONTENTS
DISCLAIMER ...................................................................................................................................................i
USING THIS DOCUMENT..............................................................................................................................i
TABLE OF CONTENTS..................................................................................................................................ii
Operation Section .....................................................................................................................................iii
LIST OF ILLUSTRATIONS ...........................................................................................................................iii
Parts Section .............................................................................................................................................iv
WARRANTY....................................................................................................................................................v
SAFETY INFORMATION ..............................................................................................................................vi
Safety Precaution Definitions ...................................................................................................................vi
SYSTEMS FEATURES AND BASIC OPERATION ...................................................................................1.1
Purpose ...................................................................................................................................................1.1
Hydraulics...............................................................................................................................................1.2
Level Best HMR (Optional) ...................................................................................................................1.3
Level Best Joystick (Optional) ...............................................................................................................1.4
Vacuum Cup............................................................................................................................................1.5
Loader Joystick Functions ......................................................................................................................1.6
Equipment Setup................................................................................................................................... 1.11
Operating the Grader Blade .................................................................................................................. 1.11
TROUBLESHOOTING...............................................................................................................................1.13
Specifications........................................................................................................................................1.14
SPECIFICATIONS AND MAINTENANCE .............................................................................................. 1.14
Maintenance..........................................................................................................................................1.15
Service ..................................................................................................................................................1.15
Lubrication Instructions........................................................................................................................1.17
SERVICE RECORD....................................................................................................................................1.19
PART ILLUSTRATIONS ..............................................................................................................................2.1
SERIAL NUMBER INFORMATION ...........................................................................................................2.2
WHERE TO GET PARTS AND SERVICE...................................................................................................2.2
HOW TO ORDER PARTS ............................................................................................................................2.2
LIST OF PARTS ILLUSTRATIONS.............................................................................................................2.3
INDEX ...........................................................................................................................................................3.1

iii
Figure 1-1. Harness Connections..............................................................................................................1.1
Figure 1-2. Hydraulic Valve (Danfoss MVB10).......................................................................................1.2
Figure 1-3. Side View Valve Cable Connection........................................................................................1.2
Figure 1-4. Hydraulic Hose Connections to Skid Steer............................................................................1.2
Figure 1-5. HMR Controls........................................................................................................................1.3
Figure 1-6. HMR Face View.....................................................................................................................1.3
Figure 1-7. Joystick Assembly..................................................................................................................1.4
Figure 1-8. Vacuum Cup ...........................................................................................................................1.5
Figure 1-9. Cat D-Series Joystick Functions ............................................................................................1.6
Figure 1-10. Bobcat Joystick Functions......................................................................................................1.6
Figure 1-11. Case Joystick Functions .........................................................................................................1.7
Figure 1-12. New Holland Joystick Functions............................................................................................1.7
Figure 1-13. Kubota SSV65 & 75 Joystick Functions................................................................................1.8
Figure 1-14. Kubota SVL 95 S6699 Multifunction Controller Kit.............................................................1.8
Figure 1-15. John Deere G-Series Joystick Functions................................................................................1.9
Figure 1-16. Takeuchi Joystick Functions ..................................................................................................1.9
Figure 1-17. JCB/Volvo Joystick Functions .............................................................................................1.10
Figure 1-18. Mustang/Gehl Joystick Functions ........................................................................................1.10
Figure 1-19. GB-108 on a Loader. ............................................................................................................1.12
Figure 1-20. GB-108 Tie-Downs ..............................................................................................................1.15
Figure 1-21. Wear Ring, Shims and Wear Pads. .......................................................................................1.16
Figure 1-22. Wear Pad Maintenance.........................................................................................................1.17
Figure 1-23. Lube and Maintenance. ........................................................................................................1.18
LIST OF ILLUSTRATIONS
OPERATION SECTION

iv
Figure 2-1. Main Frame, A-Frame and Related Parts...............................................................................2.4
Figure 2-2. Carriage, Moldboard, Blade and Related Parts ......................................................................2.6
Figure 2-3. Wheel Frame, Caster Fork and Related Parts ........................................................................2.8
Figure 2-4. Valve Assembly & Related Parts..........................................................................................2.10
Figure 2-5. Lift Cylinders & Related Parts.............................................................................................2.12
Figure 2-6. Lift Cylinder Hydraulics ......................................................................................................2.14
Figure 2-7. Angle Cylinders, Hydraulics & Related Parts......................................................................2.16
Figure 2-8. Side Shift Cylinders, Hydraulics & Related Parts................................................................2.18
Figure 2-9. Valve Module and Related Harnessing ................................................................................2.20
Figure 2-10. Joystick, Harness & Related Parts........................................................................................2.22
Figure 2-11. Joystick, Harness & Related Parts (Rental) .........................................................................2.24
Figure 2-12. HMR, Harness & Related Parts............................................................................................2.26
Figure 2-13. Optional Equipment .............................................................................................................2.28
Figure 2-14. Decals...................................................................................................................................2.30
Figure 2-15. Go! Box, Laser Receiver 360°, Cables - Trimble Earthworks Go!......................................2.32
Figure 2-16. Topcon 3DMC W/Display on Attachment ...........................................................................2.34
Figure 2-17. Topcon 3DMC W/Display in Cab........................................................................................2.36
Figure 2-18. Leica 3D ...............................................................................................................................2.38
LIST OF ILLUSTRATIONS
PARTS SECTION

v
WARRANTY
This Level Best Grading System is designed and manufactured to high standards. ATI Corporation, there-
fore, guarantees this Level Best product to be free from defect in workmanship and materials for three (3)
years from purchase date. If the machine is to be used for rental purposes the warranty is limited to ninety
(90) days.
Components supplied by outside vendors (e.g. cylinders, hydraulic valves and components, elec-
tronic modules, and machine control technology systems) are warranted separately by their respective
manufacturers. The warranty periods of these components are generally one (1) year from date of purchase.
Neither Level Best nor hydraulic component manufacturers will cover normal wear or failure due to
hydraulic oil contamination from the power source. ALWAYS start with clean oil and filters prior to
installation and operation.
Misuse, abuse, misapplication, and unauthorize alterations will void this warranty.
All warranty work must be performed by an authorized Level Best dealer and authorized by ATI
Corporation. All Level Best parts suspected of failure must be returned to ATI Corporation for war-
ranty analysis prior to any credit being issued.

vi
This manual is furnished to you, the owner/opera-
tor, as a guide to get the greatest benefit from your
Grading Attachment. ATI Corporation wants you
to be able to get the most use out of your Grading
Attachment through safe and efficient operation.
Before attempting to operate the Grading
Attachment, carefully read all sections of this
manual. Be sure that you thoroughly understand all
of the safety information and operating procedures.
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:
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation or
practice which, if not avoided, could result in
death or serious injury.
Indicates a potentially hazardous situation or
practice which, if not avoided, will result in
damage to equipment and/or minor injury.
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 leaving
the operator’s seat or whenever the machine is
not moving.
SAFETY INFORMATION
• Always allow for clearance under the cutting
edge of the machine when tuning the system
or when switching to automatic control.
Insufficient clearance could cause the machine
to lift itself off the ground as its cutting edge
attempts to achieve the programmed slope.
• Never adjust the position of the Laser Receiver
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.
• Install all safety panels and guards before
operating your equipment.
• Stay clear of all moving parts when the
machine is in operation.
• Keep all people clear of the machine when it is
running.
• 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.
NOTE: References made to left, right, front, and
rear are those directions viewed from be-
hind the power unit and grading box.
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.
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.

1.1
SYSTEMS FEATURES AND BASIC OPERATION
PURPOSE
The Level Best Grader Blade (GB-108) is a cost-
efficient method for fine grading. This manual is
for compact track loaders with Level Best Grader
Blade systems.
Power and Controlling the Grader Blade 108
Digital, 12 Pin
CAN, 4 Pin
Main Frame
Skid Steer Loader
14 Pin Connector
Figure 1-1. Harness Connections
Every attachment needs a Level Best sourced har-
ness to attach a skid-loader’s 14-pin to the Grader’s
12 pin in Figure 1-1.
This connection provides 12-volt power and full
or partial manual control depending on skid-loader
manufacturer.
NOTE: Each 14-pin harness is brand and model-
specific.
The Level Best Grader harness is interchangeable
with the PD series harness except for John Deere
applications. (See Figures 1-7 through 1-15 page
1.6.)
System Features

1.2
HYDRAULICS
Danfoss MVB10 Hydraulic Valve
The hydraulic valve is setup at the factory and
should not need any adjustments. If there are any
changes required, they should be done by an autho-
rized factory technician.
NOTE: The hydraulics system of any Level Best
product is highly complicated and sensi-
tive. DO NOT be tempted to make ad-
justments yourself. Any unauthorized
adjustments or tampering WILL void the
warranty.
Check Valve
DO NOT REMOVE
Hydraulic
Valve
Figure 1-2. Hydraulic Valve (Danfoss MVB10).
NOTE: DO NOT REMOVE THE CHECK VALVE.
REMOVAL OR TAMPERING WILL VOID
THE WARRANTY ON ALL HYDRAULIC
COMPONENTS.
Left
Lower
Right
Lower
Right
Raise
Left
Raise
Rotate
Left
Rotate
Right
SS
Right
SS
Left
Figure 1-3. Side View Valve Cable Connection
Hydraulic Hose Connections
Pressure Hose
Return/Tank Hose
CONNECT FIRST
Figure 1-4. Hydraulic Hose Connections to Skid Steer
The return line must be connected before the
pressure line. Pressurizing the valve without an
outlet will damage the valve and void the valve
warranty.
NOTE: Check the manufacture of your loader for
the correct hose connections.
SYSTEMS FEATURES AND BASIC OPERATION

1.3
LEVEL BEST HMR (OPTIONAL)
This cab mounted control option Figure 1-5 needs
a Level Best PN 000-200-513 harness to power and
communicate with the attachment control module
through the 4-pin Deutsch connector shown in
Figure 1-1.
This device will be popular for any machine guid-
ance system interaction, especially those that need
individual auto/manual. Also, it will be a great
option for skid loaders with limited buttons for
manual control. (E.g. John Deere).
The device adds manual control for rotation and
side shift. Manual lift control will still be through
in cab joysticks.
The device adds the maximum amount of machine
guidance interface with individual and combined
auto/manual buttons, as well as a rotary knob for
individual or combined increment/decrement.
4
1
3
3
2
2
Figure 1-5. HMR Controls
Increment/Decrement Controls
1. Rotating the knob to the right (CW) will
increment, rotating to the left (CCW) will
decrement, as shown.
INCREMENT/DECREMENT ROTARY DIAL COLOR
Blue Both Left & Right
Red Right
Green Left
In order to tell if you are incrementing or
decrementing for right, left, or combined you
need to take notice of the backlight color of
the rotary dial. The color code is blue for
both, red for right, and green for left. To
change color, press the face of the rotary
where the Level Best logo is, it is a button.
Rotation for manual control.
2. Rotation for manual control. Backlighting
will change from red to green when pressed.
3. Side shift for manual control. Backlighting
will change from red to green when pressed.
4. The three auto/manual buttons have back
lighting. Green means automatics are
engaged and Red means the machine is run-
ning in manual
Both Left & RightLeft RightBoth Left & RightLeft Right
Figure 1-6. HMR Face View
SYSTEMS FEATURES AND BASIC OPERATION

1.4
SYSTEMS FEATURES AND BASIC OPERATION
LEVEL BEST JOYSTICK (OPTIONAL)
32108
Decrement
Increment
Rotation
SideShift
Left
SideShift
Right
Dual
Raise
Top View
Dual
Lower
Auto/Manual
Right
Raise/Lower
Left
Raise/Lower
Decrement
Decrement
Increment
Increment
Rotation
Prior Version [NLA]
NOTE: Prior versions of the GB Joystick contain a roller to actuate
the rotation feature of the Grader Blade. This version and
firmware has been discontinued; if any parts or replace-
ments are needed, please contact ATI Corporation.
Figure 1-7. Joystick Assembly
This cab mounted control needs a Level Best PN
000-200-513 harness to power and communicate
with the grader’s ECM through the 4 pin Deutsch
connector shown in Figure 1-1.
The device gives maximum manual control with
individual and dual raise/lower control as well as
side shift and rotation controls.
The device has machine guidance interface with
an auto/manual button and increment/decrements
buttons.
This joystick will be useful for skid loaders that
provide few or no in cab buttons limiting manual
control.

1.5
SYSTEMS FEATURES AND BASIC OPERATION
Since aging and water reduce the capacity of the
rubber pad, it should be replaced at least once every
2 years or whenever damage is discovered.
If the cup does not function normally, the cup face
may be dirty or damaged, or the pump may require
service. First clean the cup face as directed.
Cleaning
1. Remove the air filter from the cup face.
2. Use a clean sponge or lint-free cloth to apply
soapy water or another mild cleanser to cup
face.
To prevent liquid from contaminating the pump,
hold the cup face-down or cover the suction hole
in the filter recess while using any liquid.
3. Wipe all residue from the cup face.
4. Allow the cup to dry and reinstall the air filter.
NOTE: You can order replacement filters from
Wood’s Powr-Grip stock # 90501 (10-pack)
https://www.wpg.com/catalog/90501
Storage
Store in a clean, dry location out of direct sunlight.
Protect the cup face from damage using the pad
cover (when supplied) or another appropriate
means.
32108
Plunger
Release Tab
Release Tab
Figure 1-8. Vacuum Cup
VACUUM CUP
WARNING: This product can expose you to
chemicals including diethylhexyl
phthalate (DEHP), which is known
to the State of California to cause
cancer and birth defects or other
reproductive harm.
For more information go to
www.P65Warnings.ca.gov.
Installation
1. Clean the mounting surface and, if needed,
the face of the vacuum cup (see cleaning).
2. Position the cup on the mounting surface so
the plunger is accessible and visible to the
operator.
3. Pump the plunger until the cup attaches
completely. When the red line on the plunger
is hidden, the cup is ready for use.
4. Check the plunger frequently to make sure
the cup remains securely attached. If the red
line appears, pump the plunger until the red
line is hidden again.
Release
1. Grasp and hold the joystick and cup assem-
bly.
2. Pull one of the release tabs until the cup
disengages completely.
Remove the cup when not in use. If the cup
remains attached to a hot surface (e.g,. in direct
sunlight) for an extended period, the rubber pad
could bond to the mounting surface, resulting
in damage to the surface or to the pad when it is
removed.
Maintenance Service
Regularly make sure the vacuum cup’s air filter is
in place. If not, discontinue use until the filter is
replaced.

1.6
SYSTEMS FEATURES AND BASIC OPERATION
LOADER JOYSTICK FUNCTIONS
Pin Level Best Function
F Left Raise
E Left Lower
D Right Raise
C Right Lower
A Combo
A & C Rotate Right
A & E Rotate Left
A & D Side Shift Right
A & F Side Shift Left
J Key Power
B Ground
P
N
M
L
K
ACC
Skid Steer Connection
J
H
G
F
E
D
A
C
B
F
E
A
Left Right
D
C
Harness Part Number 000-200-390
NOTE: Right joystick upgrade may be
required (CAT part no: 273-9104)
Figure 1-9. Cat D-Series Joystick Functions
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Pin Level Best Function
E Left Raise
F Left Lower
G Right Raise
H Right Lower
C Combo
C & H Rotate Right
C & F Rotate Left
C & G Side Shift Right
C & E Side Shift Left
K Key Power
B Ground
Left Right
G
H
E
F
C
Harness Part Number 000-200-468
NOTE: Requires Bobcat 14-Pin
Connector Kit (P/N 6733136)
Skid Steer Connection
Figure 1-10. Bobcat Joystick Functions

1.7
SYSTEMS FEATURES AND BASIC OPERATION
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Pin Level Best Function
D Left Raise
C Left Lower
E Right Raise
F Right Lower
J Combo
J & F Rotate Right
J & C Rotate Left
J & E Side Shift Right
J & D Side Shift Left
K Key Power
B Ground
RightLeft
D
C
12
3
J
NOTE: Must be “Level 300” or higher
Joystick Configuration
E
F
Skid Steer Connection
Harness Part Number 000-200-396
Figure 1-11. Case Joystick Functions
231
1
23
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Pin Level Best Function
D Left Raise
C Left Lower
E Right Raise
F Right Lower
J Combo
J & F Rotate Right
J & C Rotate Left
J & E Side Shift Right
J & D Side Shift Left
K Key Power
B Ground
RightLeft NOTE: Must be “Level 300” or higher
Joystick Configuration
Skid Steer Connection
Harness Part Number 000-200-396
D
C
J
E
F
Figure 1-12. New Holland Joystick Functions

1.8
SYSTEMS FEATURES AND BASIC OPERATION
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Pin Level Best Function
H Left Raise
G Left Lower
E Right Raise
F Right Lower
J Combo
J & F Rotate Right
J & G Rotate Left
J & E Side Shift Right
J & H Side Shift Left
K Key Power
B Ground
G
H
Left Right
J
EF
Skid Steer Connection
Harness Part Number 000-200-395
Figure 1-13. Kubota SSV65 & 75 Joystick Functions
P
O
W
E
R
F
E
G
H
J
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Skid Steer Connection
Harness Part Number 000-200-395
Pin Level Best Function
H Left Raise
G Left Lower
E Right Raise
F Right Lower
J Combo
J & F Rotate Right
J & G Rotate Left
J & E Side Shift Right
J & H Side Shift Left
K Key Power
B Ground
Figure 1-14. Kubota SVL 95 S6699 Multifunction Controller
Kit

1.9
SYSTEMS FEATURES AND BASIC OPERATION
P
N
M
L
K
J
H
G
F
E
D
A
C
B
Pin Level Best Function
E Left Raise
D Left Lower
G Right Raise
C Right Lower
F Combo
F & C Rotate Right
F & D Rotate Left
F & G Side Shift Right
F & E Side Shift Left
K Key Power
A Ground
E
D
Left Right
G
F
C
Skid Steer Connection
Instrument Panel
Harness Part Number 000-200-516
NOTE: Confirm power @ Pin K
ACC
Figure 1-15. John Deere G-Series Joystick Functions
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Pin Level Best Function
C Left Raise
D Left Lower
E Right Raise
F Right Lower
J Combo
J & F Rotate Right
J & D Rotate Left
J & E Side Shift Right
J & C Side Shift Left
K Key Power
B Ground
F
E
J
Left Right
D
C
Skid Steer Connection
Harness Part Number 000-200-397
Figure 1-16. Takeuchi Joystick Functions

1.10
SYSTEMS FEATURES AND BASIC OPERATION
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Pin Level Best Function
C Left Raise
D Left Lower
E Right Raise
F Right Lower
G Combo
G & F Rotate Right
G & D Rotate Left
G & E Side Shift Right
G & C Side Shift Left
K Key Power
B Ground
Left Right
G
C
D
E
F
Skid Steer Connection
Harness Part Number 000-200-447
Figure 1-17. JCB/Volvo Joystick Functions
123
123
P
N
M
L
K
ACC
J
H
G
F
E
D
A
C
B
Pin Level Best Function
C Left Raise
D Left Lower
E Right Raise
F Right Lower
A Combo
A & F Rotate Right
A & D Rotate Left
A & E Side Shift Right
A & C Side Shift Left
K Key Power
B Ground
Left
E
F
D
C
A
Harness Part Number 000-200-515
Skid Steer Connection
NOTE: Electric Attachment Control
Kit (P/N 50840097)
Figure 1-18. Mustang/Gehl Joystick Functions

1.11
SYSTEMS FEATURES AND BASIC OPERATION
EQUIPMENT SETUP
Some of the following setup procedures may
already be completed. However, it is recommended
that the operator be familiar with the various
system components and how they interconnect.
1. The Grader Blade should be positioned on a
level area for attaching to the loader. Start
the loader, drive up to the attachment plate
and secure per the loader manufacturer’s
directions. The Level Best quick-attach plate
is designed to be universal.
NOTE: If the loader’s pins do not fit securely into
the rectangular holes at the base of the at-
tachment plate, these holes can be notched
larger to accept the pins.
2. After installation, ensure that the Grader
Blade is level. The loader arms must be
completely lowered against the stops. Adjust
the bucket cylinders so the tires of the Grader
Blade are on the ground.
Verify that the Grader Blade is level by
observing that the cutting edge is evenly
horizontal to the ground. Turn the loader
engine OFF when connected.
NOTE: Most loaders have the ability to reverse
the hydraulic flow to the quick couplers.
Care must be taken that the flow is always
engaged the correct direction. (Refer to
Figure 1-4.)
3. Connect the Grader Blade’s hydraulic hoses
with quick couplers to the auxiliary hydraulic
ports of the loader. The Grader Blade’s
hydraulic manifold is marked “P” and “T”
where the pressure and return (tank) hoses
connect.
NOTE: “P” means pressure (supply) and “T”
means tank (return). Refer to the loader
Owner’s Manual for identifying the “P”
and “T” Auxiliary Hydraulic Ports.
4. Connect the auxiliary electrical connections
to the loader’s 14-pin connector on the loader
boom. Connect the other end of the specific
loader harness to the bulkhead on the attach-
ment.
NOTE: For button layouts of the various brand
loaders see pages 1.6 - 1.10.
If no 14-pin connector is present on your
loader, contact your Level Best representa-
tive for further information.
5. When utilizing machine control on the Grader
Blade you will need to install either a Level
Best Joystick or HMR input device. Install
these devices via the cable provided. Plug
the cable into the bulkhead on the attachment.
(Extensions are available via Level Best.)
6. If applicable, install machine control mast
poles and/or sensors (see page 2.28).
7. Bench and calibrate your machine control
system per the manufacturer’s recommenda-
tions.
Cables must be securely fastened and pinch/
rubpoints eliminated. Do not fasten to hydraulic
lines which may operate at high temperatures.
Ensure sufficient cable length to allow move-
ment of the machine.
OPERATING THE GRADER BLADE
After the Grader Blade is connected and the
Automatic Control System is calibrated, operation
can begin.
1. When seated in the Operator’s seat, start the
loader. Turn on the auxiliary hydraulics to
continuous flow. Confirm you have hydrau-
lic flow by moving the blade via the joystick
buttons. (see Figure 1-9 thru Figure 1-18)
NOTE: If you are not using any machine control
you are now ready to operate! If using ma-
chine control proceed to the next steps.
2. Toggle the Machine Control System to
‘Automatic’ mode. Drive the machine
forward. The Automatic Machine Control
System will keep the cutting edge on the
desired plane as you move about the jobsite.

1.12
SYSTEMS FEATURES AND BASIC OPERATION
Figure 1-19. GB-108 on a Loader.
NOTE: In some situations, the Automatic Control
System may require a cut deeper than the
machine can handle. The machine may
lose traction, stall the engine, or the wheel
frame will be lifted off the ground to the
maximum stroke of the cylinder as the
cutting edge tries to reach finished grade.
If this occurs, set the system to manual
control, and use the joysticks to raise the
cutting edge until the machine can move
the material. Make multiple passes to cut
the area closer to finished grade and then
go back to automatic control. This allows
the high spots to be gradually removed.
Always have system in Manual setting when not
operating the loader.
3. After several passes with the Grader Blade,
stop and turn off the loader. Place the base
of the measuring pole on the graded area and
check grade elevation.
4. After a rough grade is achieved, the dead-
band (Accuracy) may be changed to a
narrower setting as required to meet the job
tolerance requirements. With a tighter dead-
band, the speed of the loader needs to be
decreased for optimum finish.