EEWB332A
MOTORIZED WHEEL BALANCER
FOR:
PASSENGER CAR & LIGHT TRUCK WHEELS
OPERATION INSTRUCTIONS
Step-by-step how
to use instructions
Safety Information
For your safety, read this manual thoroughly
before operating the Model EEWB332A Wheel Balancer
The Model EEWB332A Wheel Balancer is intended for use by properly trained automotive technicians. The safety messages presented in this section and throughout
the manual are reminders to the operator to exercise extreme caution when servicing
tires with these products.
There are many variations in procedures, techniques, tools, and parts for balancing
tires, as well as the skill of the individual doing the work. Because of the vast number
of wheel and tire applications and potential uses of the product, the manufacturer cannot possibly anticipate or provide advice or safety messages to cover every situation.
It is the automotive technician’s responsibility to be knowledgeable of the wheels and
tires being serviced. It is essential to use proper service methods in an appropriate
and acceptable manner that does not endanger your safety, the safety of others in the
work area or the equipment or vehicle being serviced.
It is assumed that, prior to using the Model EEWB332A Wheel Balancer, the operator
has a thorough understanding of the wheels and tires being serviced. In addition, it is
assumed he has a thorough knowledge of the operation and safety features of the rack,
lift, or floor jack being utilized, and has the proper hand and power tools necessary to
service the vehicle in a safe manner.
Before using the Model EEWB332A Wheel Balancer, always refer to and follow the
safety messages and service procedures provided by the manufacturers of the equipment being used and the vehicle being serviced.
IMPORTANT !! SAVE THESE INSTRUCTIONS -- DO NOT DISCARD !!
Model EEWB332A Operators Manual
IMPORTANT SAFETY INSTRUCTIONS
When using this equipment, basic safety precautions should always be followed, including the following:
1. Read all instructions.
2. Do not operate equipment with a damaged power cord or if the equipment has been
damaged - until it has been examined by a qualified authorized service technician.
3. If an extension cord is used, a cord with a current rating equal to or more than that
of the machine 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.
4. 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.
5. To reduce the risk of fire, do not operate equipment in the vicinity of open containers of flammable liquids (gasoline).
6. Keep hair, loose fitting clothing, fingers and all parts of the body away from moving parts.
7. Adequate ventilation should be provided when working on operating internal combustion engines.
8. To reduce the risk of electric shock, do not use on wet surfaces or expose to rain.
9. Do not hammer on or hit any part of the control panel with weight pliers.
10.Do not allow unauthorized personnel to operate the equipment.
11. Do not disable the hood safety interlock system or bypass the intended operation.
12.Use only as described in this manual. Use only manufacturer’s recommended attachments.
13.Always securely tighten the wing nut before Spinning the shaft.
14.ALWAYS WEAR Safety Glasses. Everyday eyeglasses only have impact resistant lenses, they are NOT safety glasses.
15.Balancer is for indoor use only.
SAVE THESE INSTRUCTIONS
Page 4
Model EEWB332A Operators Manual
TABLE OF CONTENTS
SAFETY INFORMATION...................................................................................................3
1.0 INTRODUCTION.........................................................................................................6
1.1 SAFETY NOTICE........................................................................................................6
1.2 BALANCER APPLICATION.........................................................................................6
1.3 EEWB332A SPECIFICATIONS..................................................................................7
1.4 FEATURES..................................................................................................................7
1.5 STANDARD ACCESSORIES......................................................................................8
1.6 OPTIONAL ACCESSORIES........................................................................................8
1.7 DIMENSIONS OF THE MACHINE..............................................................................9
1.8 REQUIRED INSTALLATION AREA.............................................................................9
1.9 INSTALLATION INSTRUCTIONS...............................................................................9
2.0 BALANCER INSTALLATION.......................................................................................9
2.2 ELECTRIC INSTALLATION.......................................................................................10
2.3 MONITOR FRAME INSTALLATION.........................................................................10
2.4 INSTALLATION OF THE HOOD GUARD................................................................. 11
3.0 TERMINOLOGY........................................................................................................13
4.0 OPERATION OF THE BALANCER...........................................................................14
4.1 CHECK LIST - INSPECTION...................................................................................14
4.2 WHEEL MOUNTING................................................................................................14
4.2.1 STANDARD WHEELS (BACK CONE MOUNT)....................................................14
4.2.2 CENTERING LIGHT-TRUCK WHEELS ................................................................15
4.2.3 WHEEL MOUNTING REQUIRING SPECIAL TOOLING.......................................15
4.3 MODE SELECTION..................................................................................................16
4.3.1 WEIGHT PLACEMENT MODES...........................................................................16
4.3.2 SELECTING THE ALU TYPES.............................................................................17
4.4 SELECTING OPERATOR PREFERENCES...........................................................18
4.4.2 OUNCE/GRAMS CONVERSION..........................................................................18
4.4.3 RIM DIAMETER IN MILLIMETERS........................................................................18
4.5 ENTER RIM PARAMETERS ..................................................................................18
4.6 CORRECTION OF THE IMBALANCE......................................................................20
6.0 SPOKE BALANCING MODE....................................................................................22
6.1 SPLIT WEIGHT MODE (SWM).................................................................................22
7.0 USER CALIBRATION................................................................................................23
8.0 USER FUNCTIONS..................................................................................................24
8.30 WEIGHT UNIT TOGGLE MODE............................................................................25
8.40 DIMENSION UNIT TOGGLE MODE......................................................................25
9.0 OPTIMIZATION/WEIGHT MINIMIZATION................................................................26
10.0 TROUBLE SHOOTING.........................................................................................34
10.1 SYSTEM MESSAGES...........................................................................................35
10.1.1 C CODES............................................................................................................35
10.1.2 E-CODES............................................................................................................37
10.1.4 H CODES - WARNING........................................................................................39
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Model EEWB332A Operators Manual
1.0 INTRODUCTION
Congratulations on purchasing the EEWB332A motorized wheel balancer. This wheel balancer is
designed for ease of operation, accuracy, reliability and speed. With a minimum of maintenance and
care your wheel balancer will provide many years of trouble-free operation.
Instructions on use, maintenance and operational requirements of the machine are covered in this
manual.
STORE THIS MANUAL IN A SAFE PLACE FOR FUTURE REFERENCE.
READ THIS MANUAL THOROUGHLY BEFORE USING THE MACHINE.
1.1 SAFETY NOTICE
This manual is a part of the balancer product.
Read carefully all warnings and instructions of this manual since they provide important information
concerning safety and maintenance.
1.2 BALANCER APPLICATION
The Snap-on wheel balancer model EEWB332A is intended to be used as equipment to balance car
and light truck wheels within the following range:
Maximum wheel diameter : Maximum wheel width
:
Maximum wheel weight
:
42” (1067mm)
20” (508mm)
154 lbs / 69.8 kg
This equipment is to be only used in the application for which it is specifically designed.
Any other use shall be considered as improper and abusive.
The manufacturer shall not be considered liable for possible damages caused by improper, wrong, or
abusive use of this equipment.
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Model EEWB332A Operators Manual
1.3 EEWB332A SPECIFICATIONS
1.4 FEATURES
Motorized digital wheel balancer for car, light truck
wheels.
ACCURACY
• Weight placement accuracy is ± .7°
• Weight imbalance accuracy to 2.8 grams.
• Self test check with every power up cycle.
• Fast operator calibration.
• Pre-programmed Error Codes indicate procedural
errors or safety concerns.
Weight Imbalance Accuracy
.10 oz. / 2.8 grams
Weight Placement Resolution
± .7 degrees
Weight Imbalance Resolution:
Roundoff Mode .25 oz. / 5 grams
Non-Roundoff Mode .05 oz. / 1 gram
Max. Shaft Weight Capacity 154 lbs / 69.8 kg
Max.Tire Diameter 42” / 1067 mm
Rim Width Capacity 3”-20” / 76 mm - 508 mm
Rim Diameter Capacity 8”-30” / 152 mm-762 mm
Balancing Cycle Time. 6-8 seconds
Shaft Speed at calculation
200 RPM
Electrical
115vac, 1ph, 60Hz, 10A
Required Work Area
100” x 67” (2540 x1702 mm)
Shipping Weight, complete
366 lbs (166 kg)
Shipping Dimensions
62” x 64” x 44”
Machine Dimensions
(HxWxD) 70” x 59” x 45”
Actual Weight with Accessories
325 lbs / 147.4 kg
Operating Temperature Range
32-122F / 0-50C
SPEED and DURABILITY
• Automatic distance and diameter entry. Simply
touch the SAPE arm to the wheel, the distance and
diameter parameters are automatically entered.
Width is automatically entered using a Sonar sonic
transducer.
• Quick clamp speed nut reduces wheel mounting
time.
• Captured back spring eliminates having to handle
the backing spring.
• Quick cycle time of 6 to 8 seconds
• Automatic recalculation if weight positions are changed. No need for re-spinning the wheel.
• Common 40 mm diameter mounting shaft.
• Weight pocket storage tray.
• Easy-to-Read Data display.
• Easy weight tray access.
SOFTWARE VERSATILITY
• Both dual weight Dynamic and single weight Static
capability.
• Match Balance program for reducing weight required.
• Built-in spin counter for monitoring balancer productivity.
• Service code access to all Balancer electronic
functions for fast, easy diagnosis.
• Operator selectable round-off mode.
• 5 Aluminum Modes
• 2 Alu-S modes
• Hidden Weight (Spoke) mode
• Ounce / Gram toggle from front panel
• Multiple operator feature allows several operators
to recall wheel parameters.
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Model EEWB332A Operators Manual
1.5 STANDARD ACCESSORIES
Standard accessories ( Figures 1, 2, and 3,) included
with the EEWB332Aare:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
EAM0003J69A EAM0005D25A EAM0005D24A EAM0005D23A EAC0058D07A EAC0058D08A
EAA0263G66A EAM0005D40A EAM0021D90A EAA0247G21A EAC0060G02A EAM0006G01A WWPR13A
EAM0005D34A
EAC0058D15A Cone, 87-137 mm / 3.4”-5.4”
Cone, 96-114 mm / 3.8”-4.5”
Cone, 71-99mm /2.8”-3.9”
Cone, 40-76mm / 1.6” -3.0”
Cup -Pressure
Disk -Pressure
Quick Nut
Weight -Calibration
Standard 40mm Stub Shaft
Caliper -Rim Width
Flange -Cover, Hook
Pin -Accessory
Weight Pliers
Fastening Rod
Soft Protector Ring
Figure 2 - Rim width gauge
Weight Pliers (Figure 3).
Versatile weight hammer/plier. In addition to hammering on weight and used weight removal, the hammer/
plier can be used to reshape worn weight clips and trim
weight to size.
Figure 3 - Plier
1.6 OPTIONAL ACCESSORIES
EEWB3-1A Car, SUV and Lt Truck Pin Plate Set
EEWB3-4 9-pc Collet Set
EAK0309J20A Stand
EEWB3-5 Spacer
EEWB3-75
Truck Step Cone Kit
Figure 1
EEWB3-6 Motorhome and truck Pin Plate Set
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Model EEWB332A Operators Manual
PRE-INSTALLATION CONSIDERATIONS
1.7 DIMENSIONS OF THE MACHINE
67”
62”
36”
Figure 5 - Recommended Work Area
1.9 INSTALLATION INSTRUCTIONS
Figure 4 - Actual Footprint Dimensions.
1.8 REQUIRED INSTALLATION AREA
Make sure that from the operating position the user
can see all of the machine and the surrounding area.
The operator should prevent non authorized persons
and/or objects from entering the area which may create
potential hazards.
The machine should be installed on a stable level floor.
Do not install the machine on a uneven floor.
If the balancer is to be installed on a raised floor, the
floor must have a capacity of at least 110lbs per sq ft.
(5000 N/m² - 500 kg/m²).
It is not required to secure the machine to the floor.
Install the machine in a dry, covered area.
The installation of the machine requires a working area
of at least 100” x 67” (2540mm x 1702 mm) (Figure 5).
CAUTION! CAREFULLY REMOVE THE BALANCER
FROM THE PALLET.
Remove the hardware that secures the machine
to the pallet and slide the balancer onto the floor
where it is to be installed.
THE UNIT IS HEAVY AND THE WEIGHT IS NOT
EVENLY DISTRIBUTED.
DO NOT LIFT THE BALANCER BY THE SHAFT.
DROPPING THE UNIT MAY CAUSE PERSONAL
INJURY OR EQUIPMENT DAMAGE.
2.0 BALANCER INSTALLATION
Mounting the Shaft Adapter
IMPORTANT!
CHECK THAT THE SURFACES ARE PERFECTLY
CLEAN AND NOT DAMAGED. AN INCORRECT
MOUNTING MAY RESULT IN SIGNIFICANT IMBALANCE.
A. Mount the threaded shaft onto the arbor of the
balancer. Tighten firmly using supplied rod. (Figure 6).
NOTE: Do not install the balancer below grade level
or in a pit.
Figure 6
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Model EEWB332A Operators Manual
B. Install the accessory pins (Figure 7). Tighten firmly.
2.3 MONITOR FRAME INSTALLATION
INSTRUCTIONS
The monitor tower for the EEWB332A is
shipped inverted so to facilitate shipping ease
and to avoid damage. Follow these instructions for the proper installation procedures.
MONITOR TOWER INSTALLATION:
The Monitor Tower is shipped un-assembled
to avoid damage.
1. Remove 3 bolts (2 holding monitor tower)
See Figure 8.
Figure 7
C. Place cones and other accessories onto the accessory pins.
2.2 ELECTRIC INSTALLATION
ANY ELECTRICAL WIRING MUST BE PERFORMED BY LICENSED PERSONNEL.
ALL SERVICE MUST BE PERFORMED BY AN
AUTHORIZED SERVICE TECHNICIAN.
Check on the plate of the machine that the electrical
specifica­tions of the power source are the same as
the machine. The machine uses 115VAC, 60Hz, 1Ph,
6.0 Ampere.
NOTE:
Any electrical outlet installation must be verified
by a licensed electrician before connecting the
balancer.
NOTE:
This machine performs a self-test routine on startup. There will be a delay of several seconds before
the display is activated.
Page 10
Figure 8
Model EEWB332A Operators Manual
2. Rotate tower 180º clockwise and reinstall
the 3 bolts, see Figure 9.
Figure 9
2.4 INSTALLATION OF THE HOOD
GUARD
1. Slide the wheel guard onto the pivot
tube and raise it until the fastening holes
of wheel guard and wheel guard arbor
align. See Figure 10
2. Insert two 3/8” bolts with washers into
the holes, install the hexagon nuts and
washers and tighten.
Figure 10
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Model EEWB332A Operators Manual
3. Connect the plug of the cable with the
connector of the machine which is projecting out of the opening in the balancer
cabinet. See Figure 11.
Figure 11
4. Place the harness loosely inside the
machine through the hole in the machine
cabinet. See Figure 12
!!IMPORTANT!!!
Machines are shipped calibrated from the
factory. Do not attempt field calibration
unless balance results deem calibration
as necessary.
Figure 12
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Model EEWB332A Operators Manual
3.0 TERMINOLOGY
Before using the wheel balancer it is suggested that
you become familiar with the terminology and features
of the machine’s components. Refer to Figures 13 and
14 for identification and location.
2
3
15
19
12
4
13
18
8
14
9
10
Figure 13
17
11
1 5
6
7
16
DISPLAY - Figure 9
1. Parameters:
• Rim Offset - Key is used to enter the rim offset position using numbers from the distance
gauge.
• Rim Diameter - Enter the rim diameter. Read
the size stated on the tire sidewall.
• Rim Width -Press this key to enter the rim width.
Use the rim width calipers for measurement.
2. Inside Weight Amount and Function Display Window Shows inside or left weight amount and various operation messages.
3. Position Indicator LEDs - Displays the location for
wheel weight placement.
4. Outside Weight Amount and Function Display
Window Shows outside or right weight amount and
various operation messages.
5. Enter Key – Stores the data.
6. Mode key – Allows the operator to enter the special functions mode. Mode indicators are shown
in the grey box below the weight amount display.
(Motorcycle /Precision Tape Weight/ Optimization)
7. Minus Key – Reduces the displayed number. Press
the enter key to store.
8. Plus Key – Increases the displayed number. Press
the enter key to store.
9. Fine mode – Displays the weight amounts in 1
gram increments or ounces in tenths of an ounce.
10. STOP Key – Interrupts the balance cycle. Stops
the wheel. Allows operator to cancel Split Mode.
11. ALu Modes - Selects each ALu mode.
Figure 14
12. Display - Easy to read, user friendly display featuring large LEDs and one button functions.
13. Weight Storage Tray - Generous storage for a variety of weight profiles and sizes as well as built in
storage pockets for the standard centering cones.
14. Accessory Storage - Four sturdy side mounted
pegs are supplied for storage of additional accessories.
15. Wheel Guard Assembly.
16. Semi-Automatic Parameter Arm - Rim distance
and diameter is automatically input with the SAPE.
The SAPE is also used in several procedures for
determining accurate rim profiles and tape weight
placement.
17. Foot Operated Shaft Lock -A foot operated shaft
lock is used to stabilize the shaft during the weight
placement process.
18. Shaft Adapter - A common 40 mm size shaft is
used. The easily removable shaft can be replaced
for service or during use of certain wheel adapters
19. Sonic Transducer - Used for detection of the rim
width.
CABINET - Figure 10
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Model EEWB332A Operators Manual
4.0 OPERATION OF THE BALANCER
4.2 WHEEL MOUNTING
WARNING: For operator safety please
read and follow the precautions outlined
on pages 1 and 2 of this manual.
NOTE: Read all instructions before proceeding with operation of the balancer.
All balancer functions are input into the main computer
through the large easy to read touch panel. Although
each wheel tire assembly differ in some ways all balancing jobs require basically the same procedure. The
order of events to take place are:
1.
2.
3.
4.
5.
6.
7.
8.
Inspection of the wheel/tire assembly
Mounting wheel onto shaft or adapter
Selection of Balancing Mode and Preferences
Entry of wheel parameters
Spinning the wheel
Applying the recommended weight
Check spin if desired
Dismounting the wheel
Nearly all standard wheels and many alloy wheels have
accurately machined center holes, and they should be
mounted with center cones. Accurate balancing depends
on accurate mounting of the wheel and correct seating
of the cone in the pilot hole. Insure that the wheel is
centered on the shaft exactly as it will be mounted to
the vehicle.
Before starting any balancing procedure it is very important that the wheel is mounted on the machine with
the proper adap­tors. An incorrect centering of the wheel
will result in considerable imbalance.
There are many types of wheels and Snap-on supplies
adaptors of good quality and durability for the large majority. However if you meet special wheels which may
require a specific adaptor, call your Snap-on distributor.
Rims may be divided into these major groups:
1. Car rims with a true center hole.
2. Car rims without a center hole.
3. Car rims with an untrue center hole.
4. Light truck rims.
5. Lug centric wheels
6. Clad wheels
The following operation instructions will follow the basic
outline above.
4.2.1 Standard Wheels (back cone mount)
4.1 CHECK LIST - INSPECTION
Mount the wheel as detailed below in Figure 15
Observe Before Balancing Wheel
1. Check for proper air pressure. If not correct, inflate
to correct pressure.
2. Check for any foreign material inside tire. If present,
remove before balancing tire.
WATER IS FOREIGN MATERIAL!
3. Remove old weights — old weights may be improper
value or in wrong location.
4. Be sure tire and wheel are free of excessive dirt,
rust and large stones. Use wire brush on back side of
wheel if necessary.
Figure 15
:
1. Mount proper cone against spring plate.
2. Mount wheel on shaft in the same manner as you
would on the car.
3. Mount pressure cup on shaft and place against
outside of wheel, follow with the Quick-nut.
4. Tighten Quick-nut securely with both hands. To
operate the Quick-nut pull the lock-unlock lever
(Figure 16). Slide the Quick-nut on the threaded
shaft. When in contact with the rim, release the
unlock lever and tighten firmly. To assist in centering the wheel properly, rotate the wheel on the
shaft while tightening the quick nut.
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Model EEWB332A Operators Manual
4.2.3 WHEEL MOUNTING REQUIRING
SPECIAL TOOLING
Clad wheels: A Clad Wheel is a wheel casting that is
balanced but the wheel face is not finished. To finish
the wheel face a plastic chromed face is bonded to
the casting.
Figure 16
!
FAILURE TO TIGHTEN WING NUT SECURELY
MAY RESULT IN SERIOUS PERSONAL INJURY.
DO NOT USE A HAMMER TO TIGHTEN THE
QUICK NUT.
TO RELEASE THE QUICK NUT, UNSCREW A
FEW TURNS TO REDUCE THE AXIAL PRESSURE, THEN PRESS THE UNLOCK LEVER AND
SLIDE AWAY FROM THE SHAFT.
5. Check that the wheel rotates true by turning the wheel
several revolutions while noting any excessive runout.
4.2.2 CENTERING LIGHT-TRUCK
WHEELS
An optional offset spacer may be required for some
light truck wheels and reverse-offset wheels that must
be moved away from the balancer mounting flange.
The extension adaptor is often used with the 5-1/4 inch
diameter light truck cone. (p/n EEWB-5)
Install the spacer on the mounting flange, then mount
the wheel, using the front cone method (Figure 17)
A clad wheel must be centered properly from the back
side of the wheel using precision collets instead of a
centering cone. A precision collet is normally a dual
sided centering device with low tapers on each side
and has a length of approximately 1.5 inches. The
benefit of a precision collet is it fits very precisely into
the tapered machining on the back side of a cast wheel
and the collet does not protrude into the wheel center.
A cone also offers precision centering, but a cone can
have a length from the long to short end of the taper
of two inches or more. A taper cone unlike a precision
collet, will intrude into the wheel center. On many clad
wheels there are plastic tabs to hold the cosmetic cover
in place. It is also necessary to use a pin plate in the
front of the wheel. The standard pressure cup may
crack the plastic cladding. A centering cone can break
off the tabs. See section 1.6 Optional Accessories for
tooling recommendations.
)
Figure 17
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Model EEWB332A Operators Manual
4.3 MODE SELECTION
The majority of balancing takes place in the default
2-plane dynamic mode which is displayed as “2 PL”
(location 1). Hammer-on clip weights will be placed
on both inside and outside of the rim edge. If required,
select an optional weight placement mode by pressing
the Mode button until the appropriate placement mode
is displayed.
A. DYNAMIC (two planes), suggested for all steel rims.
In this case the wheel weights must be clipped onto the
rim edges. This function is selected as a default and
the LEDs corresponding to the wheel weight location
are lit on (Figure 19)
4.3.1 WEIGHT PLACEMENT MODES
Before Spinning the wheel (although it may be done
afterwards) choose the appropriate balancing mode
for the wheel. To select the various placement modes
press the (9) Weight Placement button until placement
LEDs indicate desired placement position.
1
4
7
2
5
8
6
9
3
Figure 18
Figure 19
B. STATIC (single plane - Figure 20). Suggested for
narrow rims (3” or less). Use a single corrective weight
placed in the center of rim as illustrated in Figure 20.
Figure 20
WEIGHT COMBINATION MODES USING THE
WEIGHT SELECTION BUTTON
See (Figure 21). Pressing the weight selection button
(9) will toggle the LED’s to the weight default selections
as shown. Balancing using a combination of hammer-on
and adhesive weights as shown in Figure 21.
Figure 21
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Model EEWB332A Operators Manual
4.3.2 SELECTING THE ALU TYPES
Images shows the corrected weight application positions for adhesive weights and clip-on
weights.
Select the Weight Placement button
recall the required ALU P weight positions.
to
Normal weight and clip - on weight positions on the
rim flange.
Alu 1 Adhesive weights applied symmetrically to
the rim flanges with NOMINAL weight positioning.
Alu 1
Alu 1P Adhesive weights applied symmetrically
to the rim flanges; the compensation planes for
the adhesive weights are read precisely using the
gauge arm.
Alu 2 Adhesive weights - Adhesive weight on rim
flange, adhesive weight hidden in rim disc with
NOMINAL positioning.
Alu 2
Alu 2P Adhesive weights - Adhesive weight on
rim flange, adhesive weight hidden in rim disc; the
compensation planes for the adhesive weights are
read precisely using the gauge arm.
Alu 3 Clip - on weight on left rim flange, adhesive
weight hidden in rim disc. Weight positioning is
NOMINAL.
Alu 3
Alu 3P Clip - on weight on left rim flange, adhesive weight hidden in rim disc; the compensation
planes for the adhesive weight is read precisely
using the gauge arm.
Alu 4 Balance clip fitted on left rim flange, adhesive weight attached to right bead seat.
Alu 4
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Model EEWB332A Operators Manual
4.4 SELECTING OPERATOR PREFERENCES
4.5 ENTER RIM PARAMETERS
4.4.1 FINE BALANCING MODE
This balancer measures with the maximum precision
availa­ble all the time, 1g / 0.05 oz, however values
below 5g / 0.25 oz are shown as zero while in the normal operating mode. Values exceeding 5g / 0.25 oz
are rounded to the amount of the nearest commercial
wheel weight.
4.5.1 Rim Distance and Diameter (offset) - Move
the rim offset arm to the edge of the rim, touch the
pointer to the rim edge as illustrated in Figure 22
and hold steady for about a second. The beeper
will sound when the distance and diameter values
are calculated and entered. Return the arm to its
fully in and down position on the balancer. Do not
allow the measurement arm to “dangle” down in
front of the balance.
Press the FINE button to advance to the display resolution between 5g / 0.25 oz and 1g / 0.05 oz.
4.4.2 OUNCE/GRAMS CONVERSION
When the machine is first turned on it is preset to display
the imbalance in ounces.
Press the MODE button to advance to select ounces
or grams.
Select Enter to save selection.
4.4.3 RIM DIAMETER IN MILLIMETERS
The rim diameter is normally displayed in inches,
however if the value in millimeters is desired. Press
the MODE button until “PAX/mm” is NOT illuminated
to display in inches, when lit the unit displays in mm.
Figure 22
.
4.5.2 - Rim Width Measurement - Lower the hood
guard. The rim width will be automatically enter
using the sonar sonic device mounted on the hood
guard frame.
4.5.3. Measure/Enter rim width (manual) using
rim width calipers. Measure wheel where corrective clip-on weight would be applied, Figure 23b.
Press the Width entry key, Figure 23a, and enter
the measured width by pressing +/- keys until the
desired value appears in the display.
W
Figure 23a
Figure 23b
Page 18
.
Model EEWB332A Operators Manual
4.5.4 Manual Parameter Entry
In the event of automatic gauge failure, the parameter values can be input manually. See manual
entry of rim width in the previous paragraph.
Figure 24a
4.5.4.1 Manual Rim Diameter Entry - Select the
Manual Diameter button. Read the rim diameter
marked on the sidewall of the tire (Figure 24a and
24b). Press the Diameter Button (D) and enter the
measured rim diameter by selecting the +/- keys
until the desired value appears in the display.
4.5.4.2 Manual Distance Entry - Move the distance
gauge arm to touch the inner edge of the wheel
where weights are to be placed and observe the
reading on the scale of the distance gauge. See
Figure 25. Press manual Wheel Offset button
(O) followed by selecting the +/- keys until value
is displayed in the display window.
D
W
O
Figure 24b
NOTE: The parameter arm must be in the Home
rest position when the balancer is powered up.
This establishes the arm starting position.
Figure 25
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Model EEWB332A Operators Manual
4.6 CORRECTION OF THE IMBALANCE
The following weight types and application methods
are available:
• Clip-on weights: Always apply by hand
• Stick-on weights: Can be applied by hand or using the gauge head for the Alu 2P, Alu 3P or easy
weight mode.
Hand applied weights MUST be applied exactly perpendicular to the shaft (12 o’clock position). After Spinning
the wheel look at the rotation indicators for the left plane
of the wheel, Figure 26-A. As the correct Wheel Angle
Position (WAP) gets closer more indicators light up.
When all the indicators are ON, the WAP indicator will
also light up, Figure 26-B. Follow same procedure for
placing weight in the right plane.
A
B
Figure 26
Note: When the correct angle is reached, all the rotation indicators should be ON. If the wheel has been
pushed too far, only the indicators of the other half will
come ON. If this happens, the wheel must be slowly
turned in the opposite direction until the WAP position
is reached. The weight amount to be applied in that
plane is shown on the display.
Attaching a clip-on weight.
Refer to Figure 27a. Clip-on weights must always be
applied in the 12 o’clock position. The lip should rest
on the rim edge. Use the weight pliers to position it. In
STATIC mode only the left hand display is used.
Figure 27a
Attaching a stick-on weight.
ALU or STATIC weight modes only: Refer to Figure 27b.
Apply the weight on the rim in the 12 o’clock position,
always by hand.
Figure 27b
Note: With STATIC weight modes, always apply the
weight at the rim center line. If not possible, split the
weights evenly and apply on another surface of the rim
(symmetrical to the rim center line).
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Model EEWB332A Operators Manual
5.0 Alu 2P and Alu 3P (page 17) weight modes
To activate Alu 2P or Alu 3P Continue pressing the
Placement button
until the Easy Alu LED is lit.
See Figure 28b-C.
When Alu 2P or Alu 3P is selected, The gauge arm is
used to determine the desired weight location, Extend
the gauge to the inner position and wait a few seconds
for the placement to register, the placement LED will
flash during this time. See figure 28b-D. Extend the
gauge arm to the outer position and wait for the signal
to return the arm to home. Lower the hood to spin the
assembly.
Figure 28a
A
B
Use the gauge arm to position the corrective weights
as indicated by the display. Rotate the wheel until all
position LEDs are lit (Figure 28b-A). If correcting the
left plane, the right amount window will display a series
of dashes while searching for the placement location.
While moving the arm, a beep indicates when the correct application position has been reached. The weight
amount will then be displayed and flash and the WAP
indicator will lite up (Figure 28b-B). Press the foot pedal
to hold the wheel in this position. Apply the weight to
the correct point on the rim.
D
C
Figure 28b
NOTE: Clean the area where the weight will be placed
before attaching the adhesive weights. Insert an adhesive weight at the center of the gauge arm in the
amount displayed and remove the protective tape from
the adhesive strip.
Split Weight Mode or sometimes called Spoke Mode
can be invoked if desired. See chapter 6.0.
NOTE: Either left or right plane can be corrected first.
Rotate the wheel to the next position, put the stick-on
weight on the gauge arm and apply the weight for the
remaining position. After applying the balance weights
perform a Check Spin.
It is good practice to perform a check spin after applying
the weights. Spin the wheel. Having finished the Run,
if the wheel is balanced correctly, both the numerical
indicators should indicate 000. To check how much
imbalance is left: Select the FINE key. The operator
should decide if applying additional weight is required.
Results recalculation. After Spinning a wheel it is possible to enter new rim data or select another weight mode.
The results are recalculated automatically. Selecting
another weight mode such as between NORMAL, ALU
and STATIC no additional steps required either.
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Model EEWB332A Operators Manual
6.0 SPOKE BALANCING MODE
Figure 29a
When spoke wheels are balanced, the behind–the–
spokes placement mode (also called split weight
mode) allows balance weights which would have to be
fitted between two spokes according to the measured
unbalance (hence would be visible from outside) to
be placed in hidden position behind two spokes adjacent to the unbalance location. After a measuring run
the electronic unit calculates the behind–the–spokes
placement automatically and reads the relative balance
weight locations on the screen. The operating steps for
the behind–the–spokes placement mode are described
and illustrated below figure 29b
6.1 SPLIT WEIGHT MODE (SWM)
1. Select desired placement mode, ALU-2 or 3 will
both function with spoke mode. Must be behind
the wheel weight position to select.
2. Measure position one and two with the gauge arm.
3. Lower the hood to perform a balance run.
4. Place inner corrective weights. Hold wheel assembly secure with the foot brake when placing
weights.
HINT: With the hood guard open press the “Plus”
key to quick spin the tire to the next weight correction position.
Figure 29b
5. Once you have a weight amount displayed. Rotate the outer plane to the weight position indicated when all LEDs are illuminated.
6. Press the Mode key. Then press Enter.
7. The Spoke icon should illuminate as well as the
Mode LED.
8. Rotate the wheel to the first spoke or closest spoke
position with P1 on the display. Press press the
enter key for position one. Figure 29c
Figure 29c
9. Rotate the wheel to the second or next closest
spoke position with P2 on the display and press
enter. Figure 29d
10. The weight amount for correction is now divided
by two and displayed between the two spokes select.
Figure 29d
11. Place the outer corrective weighs using the SAPE
arm
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Model EEWB332A Operators Manual
7.0 USER CALIBRATION
Figure 30a
+
Figure 30b
The EEWB332A Balancer features a calibration
verification program which requires only a few minutes to complete. Perform this procedure to verify
calibration when the balancer has been moved, disturbed, or whenever accuracy is questioned. If the
calibration process fails a service technician should
be dispatched to perform a complete calibration.
A calibration run takes no longer than a regular
balance run.
Press the “MODE” key and the “FINE” key together
for 5-7 seconds. See Figure 30a. The initial display
reads “C 14”, See Figure 30b.
Figure 30c
Press ENTER once to initiate procedure. The display
shows “CAL 1” and the unit beeps. See Figure 30c.
Remove any cones or adapters from the shaft. See
Figure 30d. Lower the hood to spin the shaft. (Press
ENTER if unit does not spin automatically.
Figure 30d
When compete, the display shows “CAL 2”. Mount
the User Calibration Weight, refer to Figure 30f.
Lower the hood and spin the shaft.
The wheel will be braked.
Figure 30e
After a few seconds the display equals C ---, Figure
30g. The User Calibration was performed correctly.
Any (operator) error causes the program to exit.
Unscrew the Calibration weight from the flange and
put it back in its designated place for safe keeping.
Figure 30f
Figure 30g
Page 23
Model EEWB332A Operators Manual
8.0 USER FUNCTIONS
8.10 Data Recall
Use this function to store or recall rim data (wheel type,
diameter, width, Offset, fine mode, oz. mode and mm
mode) in or from the memory. 4 sets of wheel data (the
so-called user data) can be stored.
When it is turned ON the balancer sets the wheel data
regarding user A to the system default values and sets
the current user to user A.
Figure 31a
+
To activate:
• Press the “MODE” and the “Weight Placement”
keys simultaneously for 3 seconds. See Figure 31a.
• The function starts with the SAVE option.
• The data can be saved to the user displayed on
the right.
To clear the data (without saving):
• Select Enter when user “- -” is displayed.
To save data:
• Select + or – to scroll along User A, b, C or d.
• Select Enter to save to the selected user.
The function proceeds with the RECALL option.
The data can be recalled from memory by selecting
the appropriate user. The selected user will be the new
current user, such as User b.
No recall required (no change in user required):
• Select Enter when user “- -” is displayed.
To recall data:
• Select + or – to scroll along User A, b, C or d.
• Select Enter to recall the selected user.
• The current available wheel data will be replaced
by the recalled data such as: “b”.
8.20 Anti-slip function
On wheels with a limited weight, slip specifications
may make it impossible to perform a balance run at the
normal measuring speed.
This feature is intended to alert when wheels are not
well clamped on the shaft. There may be a false error
with very light wheels or bare rims.
This function may be disabled for a single balance run:
Hold the Enter key down while the wheel guard is
lowering.
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Model EEWB332A Operators Manual
8.30 WEIGHT UNIT TOGGLE MODE
Setting the basic weight unit: oz/grams
Select this mode to change the unit of measure of the
weight before or after carrying out a balancing operation.
• Press the “MODE” key until the weight units indicator flashes. The “oz” indicator will start flashing.
• The display will now look like Figure 31b.
• Press Return.
The weight setting status now calculates weights using
a different unit of measure (from grams to ounces or
from ounces to grams).
Figure 31b
The program returns to the main menu.
8.40 DIMENSION UNIT TOGGLE MODE
Setting the basic unit of measure for diameter and
width: inches/mm
Select this mode to change the unit of measure of the
diameter and width before or after carrying out a balancing operation.
• Press the “MODE” key until the dimensional units
indicator blinks.
The “mm” indicator will start flashing.
The display should now appear as shown in Figure 31c.
Figure 31c
Note: The operator can now select the units in steps
of 1 mm if the mm mode has been selected.
• Select return.
The state of the diameter and width dimension units
will toggle (inch to mm, or mm to inch).
Note: The unit is set to default to inches.
Offset is always measured and shown in millimeters.
The program returns to the main menu.
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Model EEWB332A Operators Manual
9.0 OPTIMIZATION/WEIGHT MINIMIZATION.
Balancing optimization program cycle
The following is a description of the balancing
optimization program cycle (code OP) and weight
minimization (code UN).
1
Balancing optimization
Figure 5-32
If after the measuring run the imbalance in the left or
right correction plane and/or the static imbalance is
more than 30 grams, perform automatic optimization
by activating the FINE+ENTER key (3+1).
• Before optimization check that the rim dimensions
have been set correctly.
You cannot correct the data later.
• Demount the tire and clamp only the rim for the
compensation run.
• Press the ENTER key (1).
The OP.1 reading appears (Fig. 5-33).
In all figures in which the valve symbol appears on the
edge of the rim, shift the tire on the rim then press
the ENTER key (1) to set the valve position (exactly
perpendicular to and above the main shaft).
• Readjust the rim so that the valve is exactly
perpendicular to and above the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
The OP.2 reading appears.
An incorrect valve position entry can be corrected
afterwards.
2
3
4
5
5-32
5-33
Weight minimization
If no optimization, but only weight minimization (i.e.
without compensation run for the rim without tire),
proceed as follows:
• Clamp the complete wheel (rim and tire).
• Press FINE (3) + ENTER key (1) if minimization is
started separately from optimization.
The OP.1 reading appears.
• Press the FINE key (3) to activate the weight
minimization program.
The Un.3 reading appears;
Run the minimization program.
• With program OP.2 the rim compensation run can
still be omitted. Go to the next step in the program
by pressing the FINE key (3).
The UN.4 reading appears.
• Continue the minimization program.
The valve position entered with OP.1 is automatically
used.
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Model EEWB332A Operators Manual
Continuing balancing optimization
(Fig. 5-34)
• START the rim compensation run, without the tire.
After the measuring run the OP.3 reading appears.
• Mount the tire and inflate correctly (see note below).
1
2
5
3
4
5-32
Note
For mounting and demounting (tire changer) and tire
turning or readjustment on the rim, always apply a
sufficient amount of tire lubricant on the tire beads and
the rim edges and shoulders. Each time the position
of the tire is changed on the rim, inflate the tire to
overpressure (approx. 3.5 bar) then deflate to correct
tire pressure.
Make sure the centering line is correctly positioned on
the tire bead.
• Clamp the wheel.
• Position the valve exactly perpendicular to and
above the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
OP.4 appears (Fig. 5-34).
• Spin the wheel (START).
The measuring run is carried out. After the measuring
run two readings are possible:
5-34
5-35
5-36
OP.5 - H1
Further optimization is not recommended, but possible.
OP.5 – I (1 Reference mark Fig. 5-35)
Continue with the OP program.
Reading OP.5 - H1
If OP.5 - H1 appears, further optimization is not
recommended, since the measurement values which
activated the optimization recommendation are below
the limit value. However, it is possible to continue
optimization for the most silent possible wheel running,
reducing imbalances below the limit value (critical
vehicle).
To continue optimization
• To continue with the OP program proceed as
specified for OP.5 – I (given below).
To abort optimization
• Press the STOP key to return to the balancing
program and balance the wheel according to the
readings ( 5.9).
5-37
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Model EEWB332A Operators Manual
1
2
5
3
Reading OP.5 – I (1 Reference mark Fig. 5-35)
• After the measuring run readjust the wheel following
the direction indicator and make a chalk mark on
the right side of the tire exactly perpendicular to and
above the main shaft.
• Readjust the tire on the rim so that the reference
mark made is aligned with the valve (use tire
changer).
• Clamp the wheel on the balancer and readjust it until
the valve is exactly perpendicular to and above the
main shaft.
• Press the ENTER key (1) to acquire the valve
position.
The OP.6 reading appears (Fig. 5-34).
• Spin the wheel (START).
After the measuring run four readings are possible:
II - OP.7
Proceed with the OP program. It is recommended that
the tire be turned over on the rim.
4
5-32
5-34
5-37
OP.7 - II
Proceed with the OP program. It is recommended to
shift the tire on the rim (manual rotation).
H0
Optimum condition has been achieved and cannot be
improved.
H2
Silent running cannot be improved.
• Press STOP (5) to exit.
However, it is possible to readjust the tire relative to
the rim to achieve significant weight minimization (i.e.:
smaller balance weights) without having an adverse
effect on silent running.
Depending on the readings, there are several
possibilities for proceeding with the program. These
possibilities are described below.
Reading II - OP.7 (Fig. 5-37)
Turn the tire over on the rim (the left display bars are
rotating).
Option 1: Turn the tire over on the rim (normal program).
• Readjust the wheel according to the left direction
indicator and make a double mark on the left side
of the tire exactly perpendicular to and above the
main shaft.
• Remove the wheel from the machine.
• Turn the tire over on the rim and readjust until the
double mark coincides with the valve.
• Clamp the wheel on the balancer and readjust it so
that the valve is exactly perpendicular to and above
the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
Page 28
Model EEWB332A Operators Manual
Reading OP.8 appears (Fig. 5-34).
• Spin the wheel (START).
If balancing optimization (silent running) has been
carried out correctly (according to the program cycle),
after the check run the machine automatically returns to
the type of weight positioning previously selected and
indicates the residual dynamic imbalance on the wheel.
• Balance the wheel according to the readings.
Both optimization and balancing are accomplished.
1
2
5
3
Message E9
Message E9 means that at least one error occurred
during the optimization cycle. Press the STOP key (5)
to exit the optimization program and repeat optimization
if necessary.
Option 2: Do not turn the tire over on the rim
• Press the FINE key (3).
The result is recalculated.
Reading OP.7 - II or H0 or H2 appears
• To go to II - OP.7 (turning over the tire) press the
FINE key (3) again.
4
5-32
Option 3: Abort optimization
• Press the STOP key (5) to exit the OP program and
return to the balancing program.
The imbalance on the wheel is shown on the readout.
• Balance the wheel according to the readings.
Reading OP.7 - II (Fig. 5-37)
Readjust the tire on the rim (the right display bars light
up permanently).
5-34
5-37
A
B
5-38
Option 1: Readjust the tire on the rim
(normal program)
• Readjust the wheel following the right direction
indicator and make a double mark on the right side
of the tire exactly perpendicular to and above the
main shaft (Fig. 5-38).
• Remove the wheel from the machine
• Readjust the tire on the rim until the double mark
coincides with the valve (Fig. 5-39).
• Clamp the wheel on the balancer and readjust so
that the valve is exactly perpendicular to and above
the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
Reading OP.8 appears (Fig. 5-34).
• Spin the wheel (START) (check run).
5-39
Page 29
Model EEWB332A Operators Manual
1
2
5
3
4
5-32
If balancing optimization (silent running) has been
carried out correctly according to the program cycle,
after the check run the machine automatically returns
to the type of weight positioning previously selected and
indicates the residual dynamic imbalance on the wheel.
• Balance the wheel according to the readings.
Both optimization and balancing are accomplished.
Message E9
Message E9 means that at least one error occurred
during the optimization cycle. Press the STOP key (5)
to exit the optimization program and repeat optimization
if necessary.
Option 2: do not adjust the tire on the rim
• Press the STOP key (5) to exit the OP program and
return to the balancing program.
The imbalance on the wheel is shown on the readout.
• Balance the wheel according to the readings.
Reading H0
• Press the STOP key (5) to exit the OP program and
return to the balancing program.
The imbalance on the wheel is shown on the readout.
• Balance the wheel according to the readings.
The optimum balancing optimization condition has been
achieved and cannot be improved.
Reading H2
Silent wheel running cannot be improved. However, it
is possible to achieve weight minimization (readings
with code UN.).
5-34
Option 1: Weight minimization
• Press the FINE key (3) to continue the program.
As a result reading is II - Un.7 or Un.7 - II
Option 2: Abort optimization
• Press the STOP key (5) to exit the OP program and
return to the balancing program.
The imbalance on the wheel is shown on the readout.
• Balance the wheel according to the readings.
5-35
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Model EEWB332A Operators Manual
Weight minimization program cycle
If the rim compensation run was omitted and the FINE
key (3) was pressed to go directly into the minimization
program (reading Un.), proceed as follows.
• Clamp the wheel.
• Position the valve exactly perpendicular to and
above the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
1
2
5
3
Reading Un.4 appears (Fig. 5-34).
• Spin the wheel (START).
The measuring run is carried out. After the measuring
run two readings are possible:
Un.5 - H1
Further minimization is not recommended, but is possible.
4
Un.5 – I (1 Reference mark Fig. 5-35)
Continue with the UN program.
5-32
5-35
5-34
Reading Un.5 - H1
If Un.5 - H1 appears, further minimization is not
recommended since the measurement values do not
exceed the limit values. However, it is possible to
continue minimization so as to achieve an improvement,
if only slight (e.g.: for critical vehicles).
To continue minimization:
• Proceed as indicated for reading Un.5 – I.
To abort minimization:
• Press the STOP key (5) to return to the balancing
program and balance the wheel according to the
readings.
5-36
Reading Un.5 – I (1 Reference mark Fig. 5-35)
• After the measuring run readjust the wheel according
to the direction indicator and make a chalk mark
(Fig. 5-36) on the right side of the tire exactly
perpendicular to and above the main shaft.
• Readjust the tire on the rim so that the mark
coincides with the valve (use the tire changer Fig.
5-37).
• Clamp the wheel on the balancer and readjust it so
that the valve is exactly perpendicular to and above
the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
Reading Un.6 appears (Fig. 5-34).
• Spin the wheel (START).
The machine performs the second measuring run
with the tire. After the measuring run three readings
are possible:
5-37
II - Un.7
Proceed with the UN program. It is recommended that
the tire be turned over on the rim.
Page 31
Model EEWB332A Operators Manual
Un.7 - II
Proceed with the UN program. It is recommended that
the tire be readjusted on the rim.
1
H0
The optimum minimization condition has been achieved
and cannot be improved.
2
5
Depending on the readings, there are several
possibilities for proceeding with the program. These
possibilities are described below.
Reading II - Un.7
Turn the tire over on the rim (the left display bars are
rotating).
3
Option 1: Turn the tire over on the rim
(normal program)
• Readjust the wheel according to the left direction
indicator and make a double mark on the left side
of the tire exactly perpendicular to and above the
main shaft (Fig. 5-36).
• Remove the wheel from the machine.
• Turn the tire over on the rim and readjust until the
double mark coincides with the valve (Fig. 5-37).
• Clamp the wheel on the balancer and readjust it so
that the valve is exactly perpendicular to and above
the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
Reading Un.8 appears (Fig. 5-34).
• Spin the wheel (START) (check run).
If weight minimization was carried out correctly
(according to the program cycle), after the check run
the machine automatically returns to the type of weight
positioning previously selected and indicates the
residual dynamic imbalance on the wheel.
• Balance the wheel according to the readings.
Both weight minimization and balancing are accomplished.
4
5-32
5-37
5-34
A
B
Message E9
Message E9 means that at least one error occurred
during the minimization cycle. Press the STOP key (5) to
exit the minimization program and repeat minimization
if necessary.
Option 2: Do not turn the tire over on the rim
• Press the FINE key (3).
The result is recalculated.
Reading Un.7 - II or H0 appears
5-38
5-39
Option 3:
• Press the STOP key (5) to exit the minimization
program and return to the balancing program
The imbalance on the wheel is shown on the readout.
• Balance the wheel according to the readings.
Page 32
Model EEWB332A Operators Manual
Reading Un.7 - II (Fig. 5-37)
Readjust tire on the rim (the right display bars light up
permanently).
1
2
5
3
4
5-32
Option 1: Readjust the tire on the rim
(normal program)
• Readjust the wheel according to the right direction
indicator and make a double mark on the right side
of the tire exactly perpendicular to and above the
main shaft (Fig. 5-38).
• Remove the wheel from the machine.
• Readjust the tire on the rim until the double mark
coincides with the valve (Fig. 5-39).
• Clamp the wheel on the balancer and readjust it so
that the valve is exactly perpendicular to and above
the main shaft.
• Press the ENTER key (1) to acquire the valve
position.
Reading Un.8 appears (Fig. 5-34).
• Spin the wheel (START) (check run).
If weight minimization was carried out correctly
(according to the program cycle), the machine
automatically returns to the type of weight positioning
previously selected and indicates the residual dynamic
imbalance on the wheel.
• Balance the wheel according to the readings.
Both weight minimization and balancing are
accomplished.
Message E9
Message E9 means that at least one error occurred
during the minimization cycle. Press the STOP key (5) to
exit the minimization program and repeat minimization
if necessary.
Option 2: Do not readjust the tire on the rim
• Press the STOP key (5) to exit the minimization
program and return to the balancing program
The imbalance on the wheel is shown on the readout.
• Balance the wheel according to the readings.
Reading H0
The optimum minimization condition has been achieved
and cannot be improved.
• Press the STOP key (5) to return to the balancing
program and continue according to the readings.
Page 33
Model EEWB332A Operators Manual
10.0 TROUBLE SHOOTING
If a problem arises with the wheel balancer, proceed in
the following order to solve the problem:
1. Rethink the last steps taken.
Did you work according to the manual?
Did the unit work as described and expected?
2. Check the unit according to the points listed in this
chapter.
3. Call Technical Support at 800-225-5786.
When switched on, nothing lights up.
1. Power switch in OFF position.
• Set power switch in ON position.
2. No power cable connected.
• Connect power cable to power outlet.
3. No mains power
• Check power supply, power system fuses
4. Unit fuse(s) blown.
• Replace unit fuse(s) ( 6.2).
If the fuse(s) has (have) recently been replaced,
• Call Technical Support at 800-225-5786. to check
the unit.
When switched on, a beep is heard for 1 second.
1. Configuration error.
• Call Technical Support at 800-225-5786.
3. Check the diameter of the spot on the rim where the
diameter has been measured.
• If not identical, proceed with step 4.
4. Calibration is required.
• Have the gauge arm calibrated.
Balancing results are unreliable.
1. The balancer may not be installed properly.
• Make sure the unit rests on its 3 feet only.
• Make sure the floor is not relaying shocks or
vibrations, for example from compressors or trucks
passing close to the unit.
2. The wheel may be mounted incorrectly.
• Check the hub, cones and adapters for play.
• Use appropriate spacers to eliminate play.
• Perform measuring unit calibration.
3. The electronics are faulty.
• Call Technical Support at 800-225-5786..
A mode or indicator is continuously shown on the
screen.
1. A power fluctuation may have occurred.
• Switch off the unit.
Wait for 20 seconds, switch on the unit.
• Call Technical Support at 800-225-5786.
Display appears to freeze or lock up.
1. The unit may be in a program, waiting for a specific
action.
• Finish the program currently in use.
• Switch off the unit.
Wait for 20 seconds, switch on the unit.
Proceed.
2. Power to the balancer may have been interrupted.
• Switch off the unit.
Wait for 20 seconds, switch on the unit.
Proceed.
• If this happens frequently, have your power system
checked. If that is okay, call technical service team.
Gauge arm inputs differ from wheel dimensions
stated on rim or tire.
1. Did you position the gauge arm correctly?
• Refer to Chapter 5.6.1.
2. Check the offset input of the gauge arm by entering
manually.
• Refer to the scale on the gauge.
• If not identical, proceed with step 4.
Page 34
Model EEWB332A Operators Manual
10.1 SYSTEM MESSAGES
The wheel balancer can show messages to the
operator. These may be error related (E-codes) or
warnings (H-codes). The codes will be described in the
following chapters.
Whenever a code appears:
• Make a note of it;
• Look up the code in the list. If the code is not
described, call service team;
• Perform the steps described.
In special cases, or if the need arises, some operating modes or states can be changed by entering the
appropriate codes (C Codes).
Example for code C0 (Fig. 7-1)
Press and hold down together the “MODE” (7)
and “FINE” (8) keys for 7 seconds.
The C codes selection condition appears (Fig. 7-2).
•
Press one of the “+” (4) or “-” (6) keys until the
readout shows the desired code number (e.g.: C
0).
•
Press the ENTER key (5) to acquire the selection.
The right number readout shows the current state, e.
g.: “0” which in this case means switched off.
If the desired state is already on the readout:
Press the STOP key (10, Fig. 7-1) once to return
to C codes selection (Fig. 7-2), and a second
time to definitively exit and return to the operating
mode.
If the desired state is not that shown by the readout,
but needs selecting, proceed as follows:
•
Note: Code C4, Compensation of the clamping
means, cannot be transferred to the
permanent memory.
Below are the change codes available and the relative selections possible.
Code C0
Setting operating modes preset by the factory:
Press one of the “+” or “-” keys until the right
readout shows the desired condition (e.g.: “0”).
Note: The selection is permanently acquired.
Code C4
Compensation of residual unbalance, if any, in the
clamping means.
High precision measurement.
Every time the clamping means are substituted, compensation must be deleted or carried out again with
the new means fitted.
Resetting the operating state to 0 cancels the clamping means compensation.
The compensation is also cancelled following:
- Balancer calibration or recalibration,
- Unbalance optimization,
- Balancer switch off.
•
Select Code C4
•
Select one of the following options:
0=
Carry out compensation
1=
Compensation completed
0=
Switch off compensation again after the measuring run.
Now two options are possible:
Option 1
• Press the ENTER key to acquire the selection.
•
Press the STOP key twice consecutively.
• Select one of the following options:
0* = No action
1=
Set the default values
(state 1 appears briefly)
Selecting and changing a code.
•
•
• Select Code C0
10.1.1C CODES
•
Option 2
Cancel selection of code C just set and return directly
to the operating mode:
Press the STOP key to return to the operating
mode.
The operating mode change is complete and is saved
until a new setting is entered. When the machine is
switched off the settings are not deleted, and at each
subsequent start up they appear as previously set up
until changed again.
Page 35
Note: The present operating mode cannot be
transferred to the permanent memory.
Model EEWB332A Operators Manual
Code C7
Volume of audible signal
Scale of volume 0 to 100 (low – high),
Normally set to 50*
Code C12
Measuring spin counter.
Example: 222,123 measuring runs completed:
• Select Code C12
Example: Adjusting the volume to 60
• Select Code C7
• Set the desired value
•Press ENTER
• Select one of the following options:
1 = Total number of measuring runs completed
Note: The selection is permanently acquired.
Code C8
Selecting the limit (threshold) value for suppression
of minor unbalance readings in grams, or ounces.
The unit of measurement (g or oz) depends on the
setting (- 5.4.3).
Grams:
2 = Total number of measuring runs where balancing was successfully completed, indicated by
OK
3 = Total number of optimizations or minimizations
4 = Total number of measuring runs in Service
mode
5 = Total number measuring runs since last calibration
Every measuring run completed is saved. Maximum
count is 999,999 measuring runs. Once this number
is reached, the counter is reset to zero. The information is primarily useful for statistical purposes, for
example, to monitor the endurance of faulty parts, or
monthly (yearly) use of the machine, etc. The measuring runs performed while the machine is switched
on are transferred to the permanent memory and
added when it is switched off.
Range 3.50 to 20.0 g
Factory-adjusted to 5.0* g
Select another limit, e. g.: 5.50 g
• Select Code C8
• Set the value 5.50
•Press ENTER
Ounces:
Range 0.12 to 0.71 oz
Note: The total counter (option 1) cannot be deleted.
Factory-adjusted to 0.18* oz
Code C14
Select another limit, e. g.: 0.50 oz
• Select Code C8
• Set the value 0.50
•Press ENTER
Note: The selection is permanently acquired.
See page 21
Code C19
Viewing WeightMiser™ cumulated counters (consult
the relative document).
Code C9
Managing WeightMiser™ features
Code C11
Main shaft stop position.
The positioning brake stops the main shaft close to
the correction position by initiating pulsing braking.
The positioning brake is activated after switch on and
after a measuring run has been carried out and found
an unbalance greater than the limit value.
• Select Code C11
• Select one of the following options:
0 = No positioning brake after measuring run.
1*= Positioning brake after measuring run for left
plane.
2 = Position brake after measuring run for right plane.
Code C20
Viewing the WM™ partial counters (consult the relative document).
Code C21
This code provides information about the program
version and the balancer model name
-
Go into code C21.
Information about the software version appears.
-
Press the “-” key to view the Kernel version.
The information is visible for as long as the key is
pressed.
-
Note: The selection is permanently acquired.
Press the “+” key or the “FINE” key to view the
balancer model.
Note: The information is visible for as long as the
key is pressed.
Page 36
Model EEWB332A Operators Manual
10.1.2 E-CODES
Code C28
Displays the error codes saved by the balancer (a
maximum of 10) and clears the error memory.
The last 10 different error codes are saved in the
error memory so that they can be called up and
consulted by the wheel balancer operator for remote
diagnosis of malfunctions.
The most recent error code is saved in memory
location 1. Previous error codes are gradually shifted
down the memory list.
- Go into code C28.
REVIEWING THE ERROR COUNTERS
-
Press and release the “+” or “-” key to scroll
through the list of errors.
Note: When the key is pressed the number of the
error in the list is shown, whilst when the
key is released the corresponding code
appears.
-
Press the MODE key to make the error number
appear again (on the left) and the total number
of times that error was repeated since the last
time the memory was cleared (on the right).
ZEROING THE ERROR COUNTERS
-Press ENTER.
-
Make the selection.
0* = Do not clear the error memory
1 = Clear the error memory
-Press ENTER.
When the E-code is displayed, a low beep is generated.
Whenever a code appears:
•
Write it down
•
Look up the code in the list. If the code is not
described, call service.
•
Perform the steps described.
The setup of this chapter is:
Code
Description
•
Step(s) to be performed.
Some error messages are displayed for approx. 3
seconds on the display of the right side.
•
To clear the error code immediately (e.g.:
open the wheel guard) or press the STOP key.
E 9 (-7.1.3)
E10
Gauge arm removed from idle position during wheel
spin.
•
Bring gauge arm to the idle position (fully in
and down).
•
Re-spin the wheel without touching the
gauge arm.
•
If the error appears again, have the gauge
arm calibrated (by the service department).
Display clears after several seconds.
Page 37
Model EEWB332A Operators Manual
E11
During ignition the gauge arm is not in the idle position.
•
Move the gauge arm back carefully to the
idle position.
The error should disappear within a few seconds.
•
If the error appears again, contact the service
department.
Note: By pressing STOP you can continue to use
the machine but all the wheel data must be inserted
manually ( 5.6.3).
E 14 ( 7.1.3)
E 21 ( 7.1.3)
E22
Speed low
The rotation speed of the wheel has not reached the
minimum limit needed to enable balancing.
•
Check that the brake (pedal) or wheel is not
accidentally blocked.
•
Check that something is not braking or obstructing the wheel.
•
Check the power supply.
•
Fit the wheel correctly.
•Contact Technical Support at 800-225-5786.
E 23 ( 7.1.3)
E24
Velocity fluctuations
If the speed of the wheel to keep to the need to compensate.
• Check that the wheel is not obstructed or impeded
by something.
• Check the power supply.
• Fit the wheel properly.
• Call Technical Support at 800-225-5786.
E25
Reverse error.
The shaft is rotating at a certain speed but in the
wrong direction.
•
Apply the brake.
•Contact Technical Support at 800-225-5786.
The display clears when rotation stops.
E27
Slipping registered.
The wheel slips on the shaft.
•
Fit the wheel correctly.
E28
Speed limit reached.
•
Contact Technical Support at 800-225-5786.
E50
Manufacturer’s calibration incomplete
•Contact Technical Support at 800-225-5786.
E51
Calibration failed
•
Switch unit off, wait for 20 seconds.
•
Switch unit on.
•
Retry calibration, or:
•
Contact Technical Support at 800-225-5786
E52
The calibration weight is on the opposite side to the
calibration carried out by the manufacturer.
•
Fit the User Calibration Weight correctly on
the left side of the flange. Repeat Calibration.
•
Contact Technical Support at 800-225-5786
E82
Fault during self-test at start-up.
•
Switch unit off, wait for 20 seconds.
•
Switch unit on.
E92
During the second attempt the gauge arm for distance
and rim diameter was still not in the home position.
Both gauge arms are rendered inoperative.
•
Wait 5 seconds, or press the STOP key to
continue.
E500
E501
E502
E503
E26
No acceleration.
No shaft acceleration has been registered.
•Contact Technical Support at 800-225-5786
Page 38
Model EEWB332A Operators Manual
10.1.4 H CODES - WARNING
H0
Wheel silent running cannot be improved with balancing
optimization.
H1
Further optimization is not recommended but is
possible.
H2
Weight minimisation is recommended, further
optimization does not bring improvements.
H22
Unclamping is disabled.
A clamping device is fitted on the balancer where the
tie rod holds the device on the main shaft (e.g. USV
or SCA); unintentional unclamping could damage the
tie rod.
H33
The SONAR doesn’t work.
H90
Wheel acceleration was too slow, or braking was too
weak after a measuring run.
If the main shaft does not reach the required speed,
check that the brake is not activated or the weight of
the wheel is too great. In this case:
Release the brake.
Make sure that the shaft with the wheel clamped on it
can rotate freely.
Turn the wheel by hand, then run the START.
If the error cannot be eliminated, call the service team.
H91
Speed variations during measuring run. The brake
may be ON.
Release the brake.
Make sure that the shaft with the wheel clamped on it
can rotate freely.
Repeat the run.
11.0
H34
Sonar can’t read: hood too fast.
!!WARNING!!
H35
Sonar measure data out of range.
H80
Recalibration was not set up. As a result, it cannot be
performed by the operator.
Press the STOP key to clear the message.
Call the service team for machine calibration.
H82
The self-test was disturbed (e.g.: by turning the wheel).
The message is displayed for 3 seconds, then the
measurement is repeated (max. 10 times) or aborted
by pressing the STOP key.
BEFORE ANY MAINTENANCE OR REPAIRS
ARE ATTEMPTED THE MACHINE MUST BE
DISCONNECTED FROM THE ELECTRIC
SUPPLY.
This balancer does not require any special maintenance
but the following precautions are required:
Periodically was all plastic parts with a glass cleaner,
wipe with a dry cloth.
Clean all adapters regularly with a non flammable liquid
detergent. Lubricate with a thin layer of oil.
Periodically perform a routine calibration as outlined on
pages 21 of this manual..
Page 39
Model EEWB332A Operators Manual
NOTES:
Page 40
Model EEWB332A Operators Manual
NOTES:
Page 41
WARRANTY/SERVICE AND REPAIR
Snap-on® Tools Limited Two (2) Year Warranty
Snap-on Tools Company (the “Seller”) warrants only to original purchasers who use the Equipment in their business
that under normal use, care and service, the Equipment (except as otherwise provided herein) shall be free from
defects in material and workmanship for two years from the date of original invoice. Seller does not provide any
warranty for accessories used with the Equipment that are not manufactured by Seller.
SELLER’S OBLIGATIONS UNDER THIS WARRANTY ARE LIMITED SOLELY TO THE REPAIR OR, AT SELLER’S OPTION, REPLACEMENT OF EQUIPMENT OR PARTS WHICH TO SELLER’S SATISFACTION ARE DETERMINED TO BE DEFECTIVE AND WHICH ARE NECESSARY, IN SELLER’S JUDGMENT, TO RETURN THIS
EQUIPMENT TO GOOD OPERATING CONDITION. NO OTHER WARRANTIES, EXPRESS OR IMPLIED OR
STATUTORY, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY AND ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED.
SELLER SHALL NOT BE LIABLE FOR ANY INCIDENTAL, SPECIAL OR CONSEQUENTIAL COSTS OR DAMAGES INCURRED BY PURCHASERS OR OTHERS (including, without limitations, lost profits, revenues, and anticipated sales, business opportunities or goodwill, or interruption of business and any other injury or damage).
This warranty does not cover (and separate charges for parts, labor and related expenses shall apply to) any
damage to, malfunctioning, in-operability or improper operation of the Equipment caused by, resulting from or
attributable to (A) abuse, misuse or tampering; (B) alteration, modification or adjustment of the Equipment by
other than Seller’s authorized representatives; (C) installation, repair or maintenance (other than specified operator
maintenance) of the Equipment or related equipment, attachments, peripherals or optional features by other than
Seller’s authorized representatives; (D) improper or negligent use, application, operation, care, cleaning, storage
or handling; (E) fire, water, wind, lightning or other natural causes; (F) adverse environmental conditions, including,
without limitation, excessive heat, moisture, corrosive elements, dust or other air contaminants, radio frequency
interference, electric power failure, power line voltages beyond those specified for the Equipment, unusual physical,
electrical or electromagnetic stress and/or any other condition outside of Seller’s environmental specifications; (G)
use of the Equipment in combination or connection with other equipment, attachments, supplies or consumables
not manufactured or supplied by Seller; or (H) failure to comply with any applicable federal, state or local regulation,
requirement or specification governing the equipment and related supplies or consumables.
Repairs or replacements qualifying under this Warranty will be performed on regular business days during Seller’s
normal working hours within a reasonable time following purchaser’s request. All requests for Warranty service
must be made during the stated Warranty period. Proof of purchase date is required to make a Warranty request.
This Warranty is nontransferable.
Notice: The information contained in this document is subject to change without notice. Snap-on makes no warranty
with regard to this material. Snap-on shall not be liable for errors contained herein or for incidental consequential
damages in connection with furnishings, performance, or use of this material.
This document contains proprietary information which is protected by copyright and patents. All rights are reserved.
No part of this document may be photocopied, reproduced, or translated without prior written consent of Snap-on.
Snap-on Equipment, 309 Exchange Ave. Conway, Arkansas 72032
Customer Service and Technical Support Line 800-225-5786
Assembled in USA. Snap-on and Wrench “S” are trademarks of Snap-on Incorporated.
©Snap-on Incorporated 2014. All Rights Reserved.
Printed in United States. Snap-on, 2801 80th St., Kenosha, WI 53143 www.snapon.com
Form ZEEWB332A REV D.. 11.12.2014.. wdc
All Rights Reserved