Hunter GSP9720JLR User manual

OPERATION INSTRUCTIONS Form 5827-T, 09-09
Supersedes Form 5827-T, PRELIMINARY, 12-08
GSP9700 Series
Wheel Balancer (GSP9720JLR)
Road Force Measurement
®
System
With SmartWeight®Balancing Technology
Software Version 3.0
© Copyright 2008-2009 Hunter Engineering Company

OWNER INFORMATION
Model Number____________________________________________________________________
Software Version Number __________________________________________________________
Serial Number ____________________________________________________________________
Date Installed ____________________________________________________________________
Service and Parts Representative_____________________________________________________
Phone Number ___________________________________________________________________
Sales Representative ______________________________________________________________
Phone Number ___________________________________________________________________
Concept and Procedure Training Checklist
Trained Declined
Safety Precautions 
Quick-Thread®
AutoClamp (optional)
Autostart
Servo-Stop
Maintenance & Calibration 
Cleaning, Lubrication, and Maintenance of Adaptors, Hub, and Shaft
Calibrating the Balancer
Calibrating the Load Roller and Dataset Arms
Calibrating the Inflation Station
Mounting the Wheel/Tire Assembly 
Verifying Mounting Repeatability with Centering Check Feature
Cone Mounting
Pressure Ring and Spacers
Flange Plate and Cone Mounting
Wheel Balancing 
SmartWeight®
Standard
Mixed Weights
Adhesive Weights with Auto Dataset Arms
Split Spoke®
RimScan
Patch Balancing with Auto Dataset Arms (optional)
TPMS

Do’s and Don’ts of Wheel Balancing 
Road Force®Measurement and Forcematching®
Adjusting P/SUV/LT Limits 
Assembly Measurements
Applying Previous Wheel Measurements
Applying Previous Tire Measurements
Wheel Measurement with Dataset Arms
Tire Installed
Bare Rim
Road Force®Measurement First Harmonic Diagnosis Screen 
“Current Runout and Force Variation”
“Diagnosis Explanation” and “Details” Screens 
Match Codes
MatchMaker Procedure Explained
Do’s and Don’ts of Road Force®Measurement 
Individuals and Date Trained:
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
___________________________________ ___________________________________
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CONTENTS
1. GETTING STARTED....................................................................................... 1
1.1 Introduction............................................................................................................. 1
1.2 For Your Safety ...................................................................................................... 1
Hazard Definitions.................................................................................................. 1
IMPORTANT SAFETY INSTRUCTIONS............................................................... 2
Electrical................................................................................................................. 3
Decal Information and Placement.......................................................................... 3
Specific Precautions/Power Source....................................................................... 5
Specific Precautions/BDC Laser Indicator............................................................. 5
Specific Precautions/HammerHead™ TDC Laser Indicator (Optional)................. 6
Turning Power ON/OFF ......................................................................................... 6
Equipment Installation and Service ....................................................................... 7
Equipment Specifications....................................................................................... 7
Safety Summary .................................................................................................... 8
1.3 GSP9720JLR Components .................................................................................... 8
Standard Accessories ............................................................................................ 9
JLR Wheel Mounting Kit ........................................................................................ 9
1.4 Operating the Console ......................................................................................... 10
Using Softkeys ..................................................................................................... 10
Using Control Knob.............................................................................................. 11
Primary Balancing Display ................................................................................... 12
Resetting the Program ......................................................................................... 12
2. INTRODUCTION TO BALANCING............................................................... 13
2.1 Balance Forces..................................................................................................... 13
Balancing Theory - Static Imbalance ................................................................... 13
Balancing Theory - Couple Imbalance................................................................. 14
2.2 SmartWeight®Balancing Technology .................................................................. 15
Static and Dynamic Imbalance Sensitivity ........................................................... 15
2.3 SmartWeight®Balancing Technology Dynamic Weight Planes........................... 16
2.4 Using SmartWeight®Balancing Technology ........................................................ 16
2.5 SmartWeight Forces and Limits Feature.............................................................. 18
2.6 Weightsaver® Wheel Balancing Feature ............................................................. 18
2.7 SmartWeight Odometer........................................................................................ 19
Show Savings Summary...................................................................................... 20
3. BALANCING PROCEDURES....................................................................... 23
3.1 Mounting the Wheel Using Wheel Lift (Optional) ................................................. 23
Raising the Wheel Assembly ............................................................................... 23
Lowering the Wheel Assembly............................................................................. 24
3.2 Mounting the Wheel on the Balancer Spindle ...................................................... 25
Installing the Wheel.............................................................................................. 25
Installing the Wheel Using Quick-Thread® Wheel Clamping .............................. 25
3.3 Quick-Thread® Wheel Clamping.......................................................................... 26
3.4 CenteringCheck® Wheel Centering Feature ........................................................ 27
Mounting Error Detection Features...................................................................... 30
Front/Back Cone Mounting .................................................................................. 30
Using Plastic Wheel Mounting Washer................................................................ 31
Cone/Flange Plate Mounting ............................................................................... 33
Expandable Collet Mounting................................................................................ 34
Using the Pressure Ring and Spacers................................................................. 34
GSP9720JLR Wheel Balancer Operation Instructions CONTENTS
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3.5 Hood Autostart Feature ........................................................................................ 35
3.6 Loose Hub Detect Feature ................................................................................... 35
3.7 The Logo Screen .................................................................................................. 36
3.8 Recall Specifications Screen................................................................................ 36
3.9 TSB Screen .......................................................................................................... 37
3.10 Vehicle Specifications Screen ............................................................................ 38
Updating Specifications ....................................................................................... 38
3.11 Motor Drive/Servo-Stop...................................................................................... 43
3.12 Spindle-Lok® Feature ........................................................................................ 43
3.13 Balance Primary Screen..................................................................................... 43
3.14 Spin Tracker Feature.......................................................................................... 44
Methods of Saving Spin Data .............................................................................. 44
Storing Measurements......................................................................................... 45
Print Summary ..................................................................................................... 46
3.15 Balance Modes................................................................................................... 46
SmartWeight® Balancing Technology ................................................................. 47
Dynamic Balancing – Traditional Balancing Mode .............................................. 47
Static Balancing – Traditional Balancing Mode ................................................... 48
3.16 Balancing Procedures for Specific Weight Types and Placement ..................... 49
AUTO MODE Balancing Procedure..................................................................... 50
STANDARD Balancing Procedure Using Clip-On Weights ................................. 50
MIXED WEIGHTS Balancing Procedure Using a Combination of Clip-On &
Adhesive Weights ................................................................................................ 52
ADHESIVE WEIGHTS Balancing Procedure Using Adhesive Weights .............. 55
PATCH BALANCE® Procedure........................................................................... 57
3.17 Automatic Dataset® Arms Operation ................................................................. 59
Automatic Weight Position Measurement............................................................ 59
Manual Weight Position Measurement ................................................................ 59
Measuring Dimensions for Standard Clip-on Weight Balancing.......................... 60
Measuring Dimensions for Mixed Weights (Clip-on/Adhesive) Balance.............. 60
Measuring Dimensions for Adhesive Weights Balancing .................................... 61
Rim Runout Measurements ................................................................................. 63
3.18 Blinding and Rounding ....................................................................................... 66
3.19 Split Weight® Feature ........................................................................................ 66
Split Weight® Operation ...................................................................................... 66
Correcting Large Imbalances............................................................................... 67
3.20 Split Spoke® Feature ......................................................................................... 67
Hiding Adhesive Weight Behind Spoke ............................................................... 68
Re-entering Similar Wheel after Split Spoke® is Enabled................................... 69
Placing Hidden Weight Inside of Hollow Spokes ................................................. 70
3.21 RimScan™ Wheel Profile Scanner .................................................................... 72
Setting Dimensions with RimScan™ ................................................................... 72
Real-Time Predictions with RimScan and SmartWeight®.................................... 75
3.22 BDC Laser Adhesive Weight Locator................................................................. 75
3.23 Optional HammerHead™TDC Laser Adhesive Weight Locator......................... 76
Specific Precautions / HammerHead™ TDC Laser System................................ 78
3.24 TPMSpecs TM Feature ........................................................................................ 78
4. ROAD FORCE®MEASUREMENT PROCEDURES ..................................... 81
4.1 Load Roller Operation .......................................................................................... 81
4.2 Inflation Station..................................................................................................... 82
4.3 Forcematching® ................................................................................................... 83
Road Force and Runout Limits Enabled Diagnosis Mode................................... 83
Forcematch® Procedures .................................................................................... 84
Forcematching Using Previous Bare Rim Measurement..................................... 85
Forcematching Using Previous Road Force® Measurement .............................. 86
Using ForceMatch Codes Feature....................................................................... 86
Dial Indicator Gauges Feature ............................................................................. 87
Lateral/Radial Rim High Spot Indicators Feature ................................................ 87
Details/Diagnosis Explanation Key ...................................................................... 87
Encountering Forcematch® Prediction Errors ..................................................... 88
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CONTENTS GSP9720JLR Wheel Balancer Operation Instructions

Do’s and Don’ts of Road Force® Measurement.................................................. 88
4.4 QuickMatch® Tire and Wheel Mounting .............................................................. 89
Road Force Audit Mode ....................................................................................... 89
QuickMatch® Procedures .................................................................................... 90
QuickMatch® Using Previous Bare Rim Measurement....................................... 90
QuickMatch® Using Previous Loaded Runout Measurement ............................. 91
Dial Indicator Gauges Feature ............................................................................. 91
Lateral/Radial Rim High Spot Indicators Feature ................................................ 92
Encountering Forcematching® or QuickMatching® Prediction Errors ................ 93
Do’s and Don’ts of Loaded Runout Measurement............................................... 93
4.5 TranzSaver™ ....................................................................................................... 94
4.6 StraightTrak® LFM (Lateral Force Measurement) ............................................... 95
Disabling StraightTrak®....................................................................................... 98
Vehicle Plan View ................................................................................................ 98
Net Tire Pull Arrow............................................................................................... 98
Road Force® Arrows ........................................................................................... 99
Changing Tag Numbers....................................................................................... 99
Show Least Pull ................................................................................................. 100
Show Least Vibration ......................................................................................... 100
Show Alternate Placements............................................................................... 100
Show Details ...................................................................................................... 101
Printout............................................................................................................... 101
Inflation Pressure ............................................................................................... 102
4.7 Diagnosis Explanation Screen (Limits Disabled) ............................................... 102
4.8 Diagnosis Explanation Screen (Limits Enabled) ................................................ 102
4.9 Details Screen .................................................................................................... 103
Tire and Rim Road Force® and Runout ............................................................ 103
4.10 Printouts ........................................................................................................... 105
4.11 Harmonics & T.I.R. Data/Plots ......................................................................... 106
Assembly Data Plots Screen ............................................................................. 106
Tire Data Plots Screen....................................................................................... 107
Rim Data Plots Screen....................................................................................... 108
4.12 Statistics ........................................................................................................... 108
Show Statistics................................................................................................... 108
5. EQUIPMENT INFORMATION..................................................................... 111
5.1 Software Identification ........................................................................................ 111
5.2 Program Cartridge and Security Key Removal and Installation......................... 111
5.3 Balancer Set Up ................................................................................................. 112
Display Language .............................................................................................. 113
Print Language................................................................................................... 113
Printer................................................................................................................. 113
Printout Paper Size Selection ............................................................................ 113
QuickMatch ........................................................................................................ 113
Use Runout & Road Force Limits ...................................................................... 113
Hood Autostart Feature...................................................................................... 113
Servo-Stop ......................................................................................................... 113
Balance Checkspin ............................................................................................ 113
Weight Units....................................................................................................... 113
Inflation Station Units ......................................................................................... 113
Runout Units ...................................................................................................... 113
Road Force Units ............................................................................................... 113
5.4 Service Mode Setup and Features..................................................................... 114
Set Date and Time ............................................................................................. 114
Prompted Inflation Station.................................................................................. 114
Prompted Centering Checks.............................................................................. 114
Runout & Road Force® Limits ........................................................................... 114
Balance Limits.................................................................................................... 116
Main Selections.................................................................................................. 116
Non-SmartWeight Options ................................................................................. 117
SmartWeight® Options - Setting Up the Force Limits ....................................... 117
GSP9720JLR Wheel Balancer Operation Instructions CONTENTS
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Prompt for Wheel Assembly ID.......................................................................... 117
Spindle Type ...................................................................................................... 118
Load Roller Type................................................................................................ 118
HammerHead™ ................................................................................................. 118
Road Force Audit Mode ..................................................................................... 118
6. CALIBRATION AND MAINTENANCE ....................................................... 119
6.1 Calibration Procedures....................................................................................... 119
Quick Calibration Check Procedure................................................................... 119
Calibration Menu................................................................................................ 120
Calibration Menu (Service Mode Enabled) ........................................................ 127
6.2 Diagnostic Procedures ....................................................................................... 129
Force Sensors.................................................................................................... 129
Spindle Encoder................................................................................................. 130
Keys and Switches............................................................................................. 130
Data Acquisition Circuits .................................................................................... 130
Dataset Arm Sensors......................................................................................... 130
Loaded Runout Sensor ...................................................................................... 130
Lateral Force Sensor ......................................................................................... 130
6.3 Diagnostic Procedures (Service Mode Enabled) ............................................... 130
Loaded Runout Air Components (Service Mode Only) ..................................... 130
Motor Drive (Service Mode Only)....................................................................... 130
6.4 Cleaning the Console ......................................................................................... 130
6.5 Maintenance ....................................................................................................... 131
Spindle Hub Face and Shaft .............................................................................. 131
BDC Laser Adhesive Weight Locator Maintenance or Service ......................... 131
Optional HammerHead™ TDC Laser Clip-On Weight Locator Maintenance or
Service ............................................................................................................... 131
6.6 Mounting Cone Maintenance ............................................................................. 132
7. THEORY OF OPERATION ......................................................................... 133
7.1 Harmonic Vibrations ........................................................................................... 133
7.2 Road Force® and Runout Measurement ........................................................... 135
Force Variation................................................................................................... 135
7.3 Radial Force Variation (RFV) ............................................................................. 136
What is Road Force Measurement™? .............................................................. 137
7.4 Radial Force Variation vs. Unloaded Run Out ................................................... 139
7.5 Road Force® Vibration Placed into Perspective ................................................ 139
7.6 StraightTrak® Lateral Force Measurement System........................................... 140
StraightTrak® Lateral Force Measurement ....................................................... 140
Theory ................................................................................................................ 141
8. GLOSSARY ................................................................................................ 145
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CONTENTS GSP9720JLR Wheel Balancer Operation Instructions

1. GETTING STARTED
1.1 Introduction
This manual provides operation instructions and information required to operate the
GSP9720JLR Balancer. Read and become familiar with the contents of this manual
prior to operating the GSP9720JLR.
The owner of the GSP9720JLR is solely responsible for arranging technical training.
The GSP9720JLR is to be operated only by qualified trained technicians. Maintaining
records of personnel trained is solely the responsibility of the owner and
management.
This manual assumes the technician has already been trained in basic balancing
procedures.
References
This manual assumes that you are already familiar with the basics of tire balancing.
The first section provides the basic information needed to operate the GSP9720JLR.
The following sections contain detailed information about equipment operation and
procedures. “Italics” are used to refer to specific parts of this manual that provide
additional information or explanation. For example, refer to “GSP9720JLR
Components,” page 8. These references should be read for additional information to
the instructions being presented.
1.2 For Your Safety
Hazard Definitions
Watch for these symbols:
CAUTION: Hazards or unsafe practices, which could result in minor
personal injury or product or property damage.
WARNING: Hazards or unsafe practices, which could result in
severe personal injury or death.
DANGER: Immediate hazards, which will result in severe personal
injury or death.
These symbols identify situations that could be detrimental to your safety and/or
cause equipment damage.
GSP9720JLR Wheel Balancer Operation Instructions Getting Started
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IMPORTANT SAFETY INSTRUCTIONS
Read all instructions before operating the GSP9720JLR. Read and follow the instructions and warnings
provided in the service, operation and specification documents of the products with which this
GSP9720JLR is used (i.e., automobile manufacturers, tire manufacturers etc.).
Do not operate equipment with a damaged cord or equipment that has been dropped or damaged until a
Hunter Service Representative has examined it.
Always unplug equipment from electrical outlet when not in use. Never use the cord to pull the plug from
the outlet. Grasp plug and pull to disconnect.
If an extension cord is necessary, a cord with a current rating equal to or more than that of the equipment
should be used. Cords rated for less current than the equipment may overheat. Care should be taken to
arrange the cord so that it will not be tripped over or pulled.
Verify that the electrical supply circuit and the receptacle are properly grounded.
To reduce the risk of electrical shock, do not use on wet surfaces or expose to rain.
Verify the appropriate electrical supply circuit is the same voltage and amperage ratings as marked on the
balancer before operating.
WARNING: DO NOT ALTER THE ELECTRICAL PLUG. Plugging the electrical plug
into an unsuitable supply circuit will damage the equipment and may
result in personal injury.
To reduce the risk of fire, do not operate equipment near open containers of flammable liquids (gasoline).
Read and follow all caution and warning labels affixed to your equipment and tools. Misuse of this
equipment can cause personal injury and shorten the life of the balancer.
Keep all instructions permanently with the unit.
Keep all decals, labels, and notices clean and visible.
To prevent accidents and/or damage to the balancer, use only Hunter Road Force / GSP9700 Series
Road Force Measurement System recommended accessories.
Use equipment only as described in this manual.
Never stand on the balancer.
Wear non-slip safety footwear when operating the balancer.
Keep hair, loose clothing, neckties, jewelry, fingers, and all parts of body away from all moving parts.
Do not place any tools, weights, or other objects on the safety hood while operating the balancer.
ALWAYS WEAR OSHA APPROVED SAFETY GLASSES. Eyeglasses that have only impact resistant
lenses are NOT safety glasses.
Keep the safety hood and its safety interlock system in good working order.
Verify that the wheel is mounted properly and that the wing nut is firmly tightened before spinning the
wheel.
The safety hood must be closed before pressing the green “START” key, located on the right front corner
of the console, to spin the wheel.
Hood Autostart will cause the balancer shaft to spin automatically upon hood closure. For the next
Autostart, the safety hood has to be lifted to the full up position and then closed.
Raise safety hood only after wheel has come to a complete stop. If safety hood is raised before the spin
is completed, the weight values will not be displayed.
Do not let cord hang over any edge or contact fan blades or hot manifolds.
The red “STOP” key, located on the right front corner of the LCD assembly, can be used for emergency
stops.
DANGER: Never reach under the hood while the balancer is performing a runout
measurement or balance spin.
SAVE THESE INSTRUCTIONS
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Getting Started GSP9720JLR Wheel Balancer Operation Instructions

Electrical
The GSP9720JLR is manufactured to operate at a specific voltage and amperage
rating.
Make sure that the appropriate electrical supply circuit is of the same voltage and
amperage ratings as marked on the balancer.
WARNING: DO NOT ALTER THE ELECTRICAL PLUG. Plugging the
electrical plug into an unsuitable supply circuit will
damage the equipment.
Make sure that the electrical supply circuit and the appropriate receptacle is installed
with proper grounding.
To prevent the possibility of electrical shock injury or damage to the equipment when
servicing the balancer, power must be disconnected by removing the power cord
from the electrical power outlet.
After servicing, be sure the balancer ON/OFF switch is in the “O” (off) position before
plugging the power cord into the electrical power outlet.
This device is rated as Class A for radiated emissions.
In the event of radio interference, the display read out may flicker - this is normal.
Decal Information and Placement
Right Side View
Decal 128-964-2 gives the maximum wheel diameter and maximum wheel weight for
the GSP9720JLR.
Decal 128-605-2-00 cautions the user that spindle rotation may occur with foot pedal
depression and to keep clear of clamping components during Quick-Thread® shaft
rotation.
Decal 128-116-2 warns the user not to view the laser light with optical instruments.
Decal 128-1117-2 shows the FDA performance standards compliance.
GSP9720JLR Wheel Balancer Operation Instructions Getting Started
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Left Side View
Decal 128-391-2-00 cautions that the unit may automatically start upon closing of the
hood when hood Autostart is enabled.
Decal 128-229-2 and decal 128-905-2 work in conjunction to caution the user to not
remove the screw because of the risk of electrical shock.
Back View
Decal 128-381-2 warns the user not to remove the cover of the GSP9720JLR
because of the risk of electrical shock and not to use below garage floor level.
Decal 128-229-2 and decal 128-905-2 work in conjunction to caution the user to not
remove the screw because of the risk of electrical shock.
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Getting Started GSP9720JLR Wheel Balancer Operation Instructions

Specific Precautions/Power Source
The GSP9720JLR is intended to operate from a power source that will apply 230VAC
+10% / -15%, 1 phase, 10 amp 50/60 Hz, power cable includes NEMA 20 amp plug,
L6-20P, between the supply conductors of the power cord. The power cord supplied
utilizes a twist lock connector, NEMA L6-20P. This machine must be connected to a
20 amp branch circuit. Please refer all power source issues to a certified electrician.
Refer to “Installation Instructions for Road Force / GSP9720 Series Balancers,” Form
5487-T.
CAUTION: A protective ground connection, through the grounding
conductor in the power cord, is essential for safe operation.
Use only a power cord that is in good condition.
NOTE: For information on converting from single phase NEMA
L6-20P plug to thee phase NEMA L15-20P plug refer to
Form 5350T, “NEMA L6-20P to NEMA L15-20P Power Plug
Conversion Instructions.”
Specific Precautions/BDC Laser Indicator
The BDC (Bottom Dead Center) Laser Indicator is a class 1M laser designed to aid in
applying adhesive weights. The laser is not a field serviceable or adjustable part.
Use caution in regard to reflective materials around the laser and never look into the
laser beam
GSP9720JLR Wheel Balancer Operation Instructions Getting Started
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Specific Precautions/HammerHead™ TDC Laser Indicator (Optional)
The TDC (Top Dead Center) Laser Indicator is a class 2M laser designed to aid in
applying clip-on weights. The laser is not a field serviceable or adjustable part.
Use caution in regard to reflective materials around the laser and never look into the
laser beam.
Turning Power ON/OFF
The ON/OFF switch is located on the back of the balancer cabinet. To turn the
balancer “ON,” press the “I” side of the ON/OFF switch. To turn the balancer “OFF,”
press the “O” side of the ON/OFF switch.
The system requires about twenty two seconds to “boot up.”
After the GSP9720JLR performs a self-check, the “Logo” screen will appear
indicating the unit is ready for use.
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Getting Started GSP9720JLR Wheel Balancer Operation Instructions

Equipment Installation and Service
A factory-authorized representative should perform installation.
This equipment contains no user serviceable parts. All repairs must be referred to a
qualified Hunter Service Representative.
NOTE: To replace program cartridge, refer to “Program Cartridge
and Security Key Removal and Installation,” page 111.
Equipment Specifications
Electrical
Voltage: 230VAC +10% / -15%, 1 phase, 50/60 Hz, power cable
includes NEMA 20 amp plug, L6-20P
Amperage: 10 amperes
Wattage: 3450 watts (peak)
Air
Air Pressure Requirements: 100-175 PSI (6.9-12.0 bar)
Approximate Air Consumption: 4 CFM (110 Liters/Minute)
Atmospherics
Temperature: +32qF to +122qF (0qC to +50qC)
Relative Humidity: Up to 95% Non-condensing
Altitude: Up to 6000 ft. (1829 m)
Sound Pressure Level
Equivalent continuous A-weighted sound pressure at operator’s position
does not exceed 70 dB (A).
GSP9720JLR Wheel Balancer Operation Instructions Getting Started
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Safety Summary
Explanation of Symbols
These symbols may appear on the equipment.
Alternating current.
Earth ground terminal.
Protective conductor terminal.
l ON (supply) condition.
OFF (supply) condition.
Risk of electrical shock.
Stand-by switch.
Not intended for connection to public telecommunications network.
1.3 GSP9720JLR Components
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Getting Started GSP9720JLR Wheel Balancer Operation Instructions

Standard Accessories
A. 106-82-2 Sleeve, Scratch Guard for Small Cup F. 221-589-2 Weight Hammer/Pliers
B. 175-353-1 Polymer Cup (4.5” O.D.) G. 20-1650-1 Rim Tags
C. 76-433-1 Quick Take-Up Wing Nut with Handles H. 221-659-2 Adhesive Weight Scraper
D. 221-658-2 Hammer Head Protectors (4) I. 223-68-1 Pressure Ring
E. 46-320-2 Spacer J. 65-72-2 Calibration Weight
For optional accessories, refer to Wheel Balancer Brochure, Form 3203-T.
JLR Wheel Mounting Kit
AB C
A. 192-152-2 Standard Cone
B. 192-156-2 JLR Cone
C. 20-1839-1 Kit, Universal Flange Plate
For optional accessories, refer to Wheel Balancer Brochure, Form 3203-T.
GSP9720JLR Wheel Balancer Operation Instructions Getting Started
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1.4 Operating the Console
Using Softkeys
The “softkeys,” located on the LCD support console directly beneath the LCD,
provide operator control of the balancer. The keys are identified as:
K1 Key Menu Shift Key
K2 Key Start Key
K3 Key Stop Key
K4 Key Reset Key
The four menu labels that appear at the bottom of each video screen are referred to
as the “softkey labels.” Each label indicates the action that the program takes when
the corresponding K1, K2, K3, or K4 key is pressed.
The display between the “K2” and “K3” labels indicates how many rows of labels are
available. Most screens have only one or two rows, however more rows are possible.
The green box indicates the row that is currently displayed.
The menu row is changed by pressing the menu shift key, . When this key is
pressed, the menu labels change to the next row down. If the last row is currently
displayed, the menu labels change to the first row.
Throughout this manual, the statement press “nnnnnnn” means press the softkey
with the label “nnnnnnn.” If the required label is not on the current menu, press
to change rows until the desired label is displayed.
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Getting Started GSP9720JLR Wheel Balancer Operation Instructions

Using Control Knob
The control knob is located to the right of the softkeys. The control knob accesses the
on-screen switches and manually inputs data. The available on-screen switches are
dependent upon the setup configuration of the balancer.
Pushing in on the control knob cycles through the available on-screen switches on the
current primary screen. Rotating the control knob clockwise or counter-clockwise
changes the setting for the selected on-screen switch.
For example, in the “Balance” primary screen, pushing in on the control knob will cycle
through the grams to ounces, the static and dynamic, and the SmartWeight/Standard
balance screen switches. After selecting an on-screen switch, the setting may be
selected by rotating the control knob. The “selected” switch is the one showing the
hand.
GSP9720JLR Wheel Balancer Operation Instructions Getting Started
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Primary Balancing Display
The control knob can also be used to switch between SmartWeight and traditional
balancing, as long as both traditional and SmartWeight modes are enabled in setup.
Press the knob until the SmartWeight is highlighted or the hand appears on the
static/dynamic switch. Next, press and hold the control knob until the opposite
balance mode icon appears.
NOTE: If SmartWeight mode is enabled, the balancer will always
return to SmartWeight balancing upon dimension entry or a
reset.
Resetting the Program
The wheel balancing program may be reset at anytime by using the key, located
on the LCD support console directly beneath the LCD. To reset the balancer, press
the reset key twice within a four-second period without pressing any other keys in-
between. This prevents a single accidental keystroke from resetting the system.
When the balancer is reset, the information collected for the wheel balance in
progress is erased and the display returns to the “Logo” screen.
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Getting Started GSP9720JLR Wheel Balancer Operation Instructions