Galaxy GB1200 User manual

WHEEL BALANCER
ITEM NO: GB1200
GALAXY AUTO SERVICE EQUIPMENT CO. LTD.
www.galaxyauto.biz

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1. INTRODUCTION
Thank you for your purchasing the computer wheel balancer.
1.1 Function
Unbalance wheel results in steering wheel joggling, reduces adhesion force of vehicle,
makes the wheels jump and damages tires, shock absorbers and steering parts. This
influences riding comfort and controlling stability and increases oil wear, so that directly
influences on vehicle’s economical efficiency index. Balancing tire will avoid its
disadvantageous effects and loss.
1.2 Performance and Features
-Automatic pneumatic brake system, manual brake position.
-It is easy to lift large sized tire with pneumatic lift.
-This machine adopts imported computer parts, it has world-advanced electric drive system,
and its life can be up to ten years.
-High strength protective cover (optional), it accords with national safety operating
procedure.
-Under the emergent circumstances, press the key STOP to stop rotating the wheel.
-Having automatic dynamic and static balancing detecting functions.
-Having the functions that balancing three kinds of aluminum alloy rim.
-Balancing precision is up to ±1g, balancing time is very short.
-Having self-calibration and automatic diagnostic functions
1.3 Technical data
Fit for model 1200 downwards
Rim width 1.5″-20″(38.1-508mm)
Rim diameter 13″-24″(330.2-609.6mm)
Maximum wheel diameter 1300mm
Maximum wheel weight 150Kg
Power supply 380V or 220V(optional)
Noise ≤65dB
Temperature 0℃-45℃
Floor space 3000×2500mm
Net weight 240Kg
-The Max. Weight of wheel can’t exceed 95kg when using 220v motor.
-If exceed 95kg, the motor will damage or burn.
2. Transportation and Installation
2.1 Wheel balancer transportation and Installation
-Only lift the balancer’s chassis, under any circumstances, do not lift balancer by the main
shaft. Pay attention to carry lightly.
-The machine can be installed on any firm and level ground and there is enough space
around (not less than 500mm). There are screw holes on the chassis of the machine, fix the
machine into the concrete floor with expansion bolts. And fixing it unstably will produce
measurement error.
2.2 Main shaft installation
Before installing, clean up the centre hole of main shaft and connecting piece using alcohol
or gasoline, tighten the screw mandrel tightly on the main shaft with spanner.

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2.3 Warning
-Ii is recommended that regulated power supply is adopted in the unstable power zone.
-Please read the operation manual carefully before using the machine. If in doubt, do not use
the machine and contact its manufacturer.
-Do not remove or replace parts of the machine, otherwise influence normal work of the
machine.
-Do not use strong jet of compressed air for cleaning.
-Clean the plastic panel and plastic frame with abstergent termly.
-Do not wear neckcloth and loose clothing with long fair; when the tire rotates, operator
should stand on both sides of the machine, and non-operator cannot stand nearby.
-Do not exceed the using range of the machine during the operation process.
-All the electric appliances are installed by professional electrician.
-It is required that the machine is connected with the ground wire. When maintaining the
machine, power supply should be turned off.
-Working environment: temperature 0-50 , in a dry and well airiness area.℃
3. CONTROL PANEL GRAPHICS:
Display unbalancing value inside the wheel edgeⅠ
Display unbalancing value outside the wheel edgeⅡ
Display unbalancing position inside the wheel edgeⅢ
Display unbalancing position outside the wheel edgeⅣ
Display balancing modesⅤ
Indicator for selected small sized and large sized tireⅥ
balance

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A—Function key for manual input the distance between
wheel and balancer
B (L)—Function key for manual input of rim width
D—Function key for manual input of rim diameter
Select small sized and large sized tire balance
RESET and ADJUSTMENT key
STOPkey
Selected key of balancing mode
START key
＜5g high accuracy balancing key (car)
＜5g high accuracy balancing key (truck)
Caution: Only press the keys with hands, and do not press the keys using clamp and any
other sharp things.
4. WHEEL BALANCING OPERATION PROCESS
4.1 Electrical connection
Open the power switch, and then display the memory logo on the panel, display “-A-”, “8.0”
in a few seconds; it proves that the machine is normal.
4.2 Wheel mounting
Preparation before testing: check and clean away dust and clay on the tire, metals and
stones in the tire; check whether tire pressure accords with the regular value; check whether
the locating surface of rim and mounting hole have deformed, and check if there are any
sundries inside the tire; remove old balancing weights.

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4.2.1 Tire mounting
①Fix the screw mandrel on the main shaft.
②Install the tire tested on the main shaft beside the
adapter.
③Select the proper cone to fit over on the main
shaft.
④Tighten with lock washer nut.
4.2.2 Tire mounting with special flange
①Install the flange on the adapter, tighten it with
bolt.
②Fix the screw mandrel on the main shaft.
③Select the proper cone to fit over on the main
shaft.
④Tighten with lock washer nut.
Caution: 1. When fasten the large sized tire, rotate the tire 180°, fasten it again to make sure
the centre of tire positions are accurate.
2. Inner plane of special flange must accord with adapter.
4.3 Dimension input

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First input dimension “A”Ⅰ
●Measure the distance value “A” from on
the inside of rim to the machine body with
the distance finding ruler of machine itself.
Press 〖△〗, the value increases.
Press 〖▽〗, the value reduces.
Until display the value “A” that is
measured.
Then input dimension “L” (B)Ⅱ
●Measure the width value “L” (B) of rim with
width flange
Press 〖△〗, the value increases.
Press 〖▽〗, the value reduces.
Until display the value “L” (B) that is
measured.
Then input dimension “D”Ⅲ
●Find the nominal diameter value “D” on the
tire.
Press 〖△〗, the value increases.
Press 〖▽〗, the value reduces.
Until display the value “D” that is
measured.
4.4 Balancing modes
According to wheel material and rim structure, select different balancing modes and the
position of balancing weight is also placed differently. Continuously press the key F, select
balancing modes based on the state of balancing mode indicator LEDs. When the machine is
switched on every time, the system can enter automatically dynamic balancing mode, and
need not select.
Dynamic balancing—Balance steel or aluminum alloy
rim by clipping the wheel weights onto the rim edges.
Static balancing—STATIC correction is required for
motorcycle wheels or when it is impossible to place the
weights on both sides of the rim. The adhesive position of
wheel weights as shown in left Figure.

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ALU1—Balance alloy rim by placing the adhesive weights
onto the rim shoulders. The adhesive position of wheel
weights as shown in left Figure.
ALU2—Balance alloy rim by placing the adhesive weights
that are hidden on the outside. The adhesive position of
wheel weights as shown in left Figure.
ALU3—Balance alloy rim by clipped the wheel weights on
the inside and placing the adhesive weights on the outside
(the position of wheel weights on the outside as shown in
ALU2’s figure). The adhesive position of wheel weights as
shown in left Figure.
4.5 Balancing wheels
Giving an example as follows:
1.PressstartupkeySTART,automaticbrakeis
displayed in 8 seconds, show in Fig.1
40 is unbalancing value inside the tire.
10 is unbalancing value outside the tire.
2. Rotate the tire slowly, when all the inner
indicator LEDs light, shown in Fig.2, place 40g
lead block at twelve o’clock position on the
inside of rim. Continue to rotate the tire until a
zero (0) appears in the inner LEDs window, as
Fig.3 shown.
3. Rotate the tire slowly, when all the outer
indicator LEDs light, shown in Fig.4, place 10g
lead block at twelve o’clock position on the
outside of rim.
4. Continue to rotate the tire again until a zero
(0) appears in the outer LEDs window. After
balancing ends, demount the tire. If testing the
tire again, do not turn off power supply.
Caution: 1. when the single-phase power is turned on, rotate the tire by hand to extend the
motor life.

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2. Check whether input dimension is wrong, press the key R to automatically defect
the value A, L, D.
3. Check whether balancing modes accord with the tire structure. (See detailed 4.4
balancing modes)
4. Check whether the lock washer nut is tightened.
5. When dismount the tire, care is taken to carry the tire lightly and do not impact the
main shaft.
6. When balancing using balancing block with clamp, nail lightly with balance weight
on the tire edge. After balancing ends, knock it on the floor and do not knock hard
on the main shaft to avoid damaging the sensor.
5. MAINTENANCE
5.1 Self-calibration
Self-calibration is completed in the factory. When using the machine many years later and
replace the parts of machine or doubt that balancing error is much greater, self-calibrate over
again. Select a medium-sized tire (13 inches or 14 inches), install it on the main shaft, input
the value A, L, D of this tire.
Caution: Select the better tire to self-calibrate, input the correct dimension, or else result in
calibrating inaccurately.
5.1.1 Self-calibrating with a tire balanced
1. First press the keys R & START, the display board
displays “CAL”--“CAL”. Indicator LEDs blink; release the keys
after indicator LEDs go out.
2. Then press the key START, the wheel rotates and
automatically brakes, the display board displays “ADD”--“100”,
place 100g balancing weight at any position on the outside of
the wheel and the rim edge .
3. Then press the key START, the wheel rotates and
automatically brakes, the display board displays “END”--“CAL”,
which indicates that self-calibration ends.
4. Press the key START again, if displaying “00”--“100” (±4g)
and outer indicator LEDs blink, 100g balancing weight should
be beneath the main shaft (allow having ±4° error), which
indicates that self-calibration succeeds.
Judging self-calibration accuracy
1. Display numerical value accurately (allow having ±4° error).
2. Display phase position accurately (outer indicator LEDs blink,100g balancing weight is
beneath the main shaft and allow having ±4° error).
5.1.2 Self-calibrating with a tire unbalanced

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1. Repeat the operation 5.1.1, 100g lead block is not beneath the main shaft, the value
displayed has error.
2. Remove 100g lead block, balance the wheel (see chapter 4.5), until a zero (0) appears
in the inner and outer LEDs window.
3. Repeat the operation 5.1.1 again, if displaying “00”--“100” (±4g) and outer indicator
LEDs blink, 100g balancing weight should be beneath the main shaft (allow having ±4° error),
which indicators that self-calibration succeeds.
5.1.3 Self-calibration trouble shooting
Troubles Reasons Solutions
Display Err, -8- 1. Do not place 100g
lead block.
2. Lead wire of pressure
sensor breaks.
3. Mainboard goes
wrong.
1. Place 100g lead
block.
2. Check and connect.
3. Replace mainboard.
Error is much greater
after self-calibrating.
1. May be error of tire
itself is much greater.
2. Three memory
parameters confuse.
1. Replace a balanced
standard tire.
2. Adjust three memory
parameters and
self-calibrate.
The value 100g that is
displayed is inaccurate,
the position of lead block
is not beneath the main
shaft, and the tire can be
balanced with many lead
blocks.
1. The tire is not
standard or there are
sundries in the tire
2. Memory values dis
and SFA do not adjust
well.
3. The value that is
display is inaccurate.
1. Replace a standard
tire.
2.1 If the displayed
value is high, reduce the
value dis.
2.2 If the displayed
value is low, increase
the value dis.
2.3 When lead block is
away from the operator,
increase the value SFA.
2.4 When lead block is
back from the operator,
reduce the value SFA.
3. Shoot according to
trouble shooting.
If do not resolve by the above methods, please contact the manufacturer.
Caution: After replacing mainboard, power panel, phase position and pressure position,
self-calibration must be carried out over again. When replace mainboard, setup its
parameters according to original parameters, the method sees 5.2. And
self-calibrate over again after modifying.
5.2 Correcting memory data
Because incorrect operations and other reasons result in losing memory parameters, adjust
as follows and make the computer return normal work. Correct parameter setup can
guarantee its balancing precision.
Trouble: After self-calibrating, the phase position is inaccurate or the error is too greater.

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Correcting method as follows:
1. First press the keys R & START, the display board
displays “CAL”--“CAL”. Indicator LEDs of phase position
blink, release the keys after indicator LEDs go out.
Left Window Right Window
Fig.1
2. Continuously press the keys , and F of distance▽△
dimension A, shown in Fig.2, if the value displayed is not
correct, press the keys and of width dimension L△▽ to
adjust.
Fig.2 Standard Memory
Correcting the degree of accuracy of value
3. Press the key of distance dimension A, as Fig.3△
shown, which is that adjusting static balancing parameters.
When offset data are too many, adjust to shown in Fig.3.
Fig.3 Standard Memory
Correcting value 100g of inner of static balancing
4. Then press the key , as Fig.4 shown, if the value△
displayed is not correct, press the keys and of△▽
width dimension L and adjust.
Fig.4 Standard Memory
Correcting the error of degree
5. Return by pressing the key of distance dimension A.△
6. After correcting, self-calibrate again, see 5.1, or else correct ineffectively.
5.3 Trouble shooting
Troubles Reasons Solutions
Do not display after starting. 1. Check outer circuit.
2. Check whether the
switch is damaged.
3. Main board and
power panel are
damaged.
1. Check it with multimeter.
2. Replace it.
3. Replace it.
Display after starting but do
not work and buzz, display
Err1.
Capacitor of motor did
not work.
Replace a 20UF/400V
capacitor.
1. Display Err1 and do not 1. Starting delay is 1. Replace delay or power

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rotate.
2. Display Err1 and rotate.
damaged.
2. Phase position
generator goes wrong
and main board is
damaged.
3. Power supply voltage
is much lower.
panel.
2. Adjust photoelectric tube
shelf, replace main board.
3. Boost voltage.
Display Err2 and rotate. 1. Do not install the
wheel.
2. Only install rim but not
tire.
3. Temperature indoors
is much lower, wheel
inertia is not good.
1. Install wheel.
2. Install tire.
3. Make sure that temperature
indoors is more than 5 .℃
Display Err3 Unbalance amount of
wheel is much greater.
Replace wheel or self-calibrate
over again.
Display Err4 1. If reversal, phase
position is connected
incorrectly.
2. If corotation, the
position of sensor goes
wrong.
1. Change the phase sequence
of three phases.
2. Adjust the position again or
replace it.
Display Err7 1. Memory is damaged.
2. Signal loses.
1. Replace X24C45.
2. Self-calibrate over again.
Only display invalid value
00-00.
1. Memory X24C45 is
damaged.
2. Lead wire of sensor
breaks or is loose
contact.
3. Memory value loses.
1. Replace it
2. Connect over again.
3. Input over again.
The value of changed range
every rotation is more than 5g.
1. There are sundries in
the tire.
2. Sensor is affected
with damp.
3. The machine is place
unsteadily.
4. Harmful flow disturbs
the machine such as
electric portable drill and
electric welding
machine.
1. Replace tire.
2. Drying it and adjust again.
3. Tighten fang bolts.
4. Eliminate disturb and try
again.
The value of changed range
every rotation is more than
dozens of grams.
1. There are sundries in
the tire.
2. Main board or power
panel goes wrong.
3. Sensor is placed
unsteadily.
4. Outer power voltage
1. Replace tire.
2. Replace it.
3. Check sensors and
connecting line.
4. Examine and repair or install
the manostat.

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is lower.
Non-stopping time is more
than 10s.
1. Power supply is loose
contact.
2. Disturb.
1. Check outer power circuitry
or replace power supply.
2. Shut down and start again.
Balancing inaccurately and do
not up to 00
1. Sensor is affected
with damp.
2. Main board goes
wrong.
3. Program is
disordered.
1. Adjust again, drying it and
self-calibrate.
2. Replace main board.
3. Self-calibrate over again.
Display value but not brake. 1. Brake system is
damaged.
2. External disturbes.
1. Replace power panel.
2. Start over again.
Twice dismounting error is
more than 10g.
1. The inner hole of
wheel is not regular.
2. Adapter is installed
improperly.
1. Replace the wheel.
2. Check the assembly surface
over again.
Self-calibration displays Err8. 1. Power panel goes
wrong.
2. Lead wire of sensor
fall back.
1. Replace wheel and try again.
2. Connect it.
Display error value of several
hundred grams
1. Three memory
parameters are
disordered.
2. Tire error is much
greater.
3. Main board goes
wrong.
1. Input over again.
2. Replace a tire.
3. Replace main board.
6. Structure of pressure sensor and steps of adjustment
During the transportation or operation process, pressure sensors are affected with damp,
which results in balancing the tire inaccurately. Then drying pressure sensors. Operate the
machine after calibrating.

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Steps:
1. Loosen nuts ①, ②, ③, ④.
2. Drying sensors ⑤, ⑥.
3. First tighten nut ①, then tighten nut ②.
4. First tighten nut ③, then tighten nut ④.
Caution: The screw mandrel cannot touch the hole edge in the board.

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7. Accessories
Number Name Quantity
TD01 Lockwasher bolt 1
TD02 Calipers 1
TD03 Balancing plier 1
TD04 Screw mandrel 1
TD05 Flange 1# 1
TD06 Flange 2# 1
TD07 Cone 1# 1
TD08 Cone 2# 1
TD09 Cone 3# 1
TD10 Cone 4# 1
TD11 Cone 5# 1
Accessories figure as follows: