Launch Tech X631WAPR User Manual
LAUNCH X-631/X-631+ Wheel Aligner
General Notice
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TECH. CO., LTD. (short for LAUNCH) in China and
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in this manual may be trademarks of their respective
owners. You may not use any trademarks, service
marks, domain names, logos, or company names of
LAUNCH or any third party without permission from
the owner of the applicable trademarks, service
marks, domain names, logos, or company names.
You may contact LAUNCH by visiting Launch at
http://www.cnlaunch.com
Industrial Park, North of Wuhe Rd., Banxuegang,
Longgang, Shenzhen, Guangdong, P. R. China, to
request written permission to use Materials on this
manual for purposes or for all other questions relating
to this manual.
, or writing to Launch
Other product names used herein are for
identification purposes only and may be trademarks
of their respective owners. LAUNCH disclaims any
and all rights in those marks.
Copyright Information
Copyright © 2010 by Launch Tech Co., Ltd. All rights
reserved. No part of this publication may be
reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic,
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information contained herein is designed only for the
use of this unit. LAUNCH is not responsible for any
use of this information as applied to other units.
Neither LAUNCH nor its affiliates shall be liable to the
purchaser of this unit or third parties for damages,
losses, costs, or expenses incurred by purchaser or
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of this unit, or unauthorized modifications, repairs, or
alterations to this unit, or failure to strictly comply with
LAUNCH operating and maintenance instructions.
LAUNCH shall not be liable for any damages or
problems arising from the use of any options or any
consumable products other than those designated as
Original LAUNCH Products or LAUNCH Approved
Products by LAUNCH.
i
LAUNCH X-631/X-631+ Wheel Aligner
of measurement.
Precautions
z Please read the User’s Manual and the
Installation and Parts Manual carefully before
operating X-631/X-631+.
z Only the qualified technician can operate the
Wheel Aligner.
z The operator must have knowledge of computer
application and basic theory of wheel alignment.
z The power voltage of X-631/X-631+ is
AC230V±10% 50±1Hz / AC110V±10% 60±1Hz
˄AC220V±10% 60±1Hz for South Korea. It can
be customized according to the requirements of
customer˅. The power outlet must be a 3PIN
socket and its earth pin must be well
grounded. Otherwise, the equipment will be
damaged! If the power voltage is not stable,
please purchase and use AC voltage stabilizer.
z X-631/X-631+ is operated with image sensing. Do
not stop the light beam between sensors. Avoid
reflection light of the ground and direct light to the
probe rod while testing.
z Charge the probe rod for 4 hours if it is not
operated for over 30 days. Turn off the power of
the probe rod before charging it.
z The probe rods are precision parts of the wheel
aligner. Do not plug or unplug the connecting
cable when the power is turned on. Otherwise,
the built-in sensor may be damaged. Special care
should be taken during installation and operation
to prevent the casing from being distorted and
the internal parts from being damaged.
z Install the lift according to specifications before
installing X-631/X-631+, for it is necessary to lift
the vehicle when adjusting vehicle wheels. The
vehicle may need lift for two times for
compensation of rim run-out. Check the lift
regularly for fixedness and levelness to ensure
personal safety and correct measurement.
Remove the obstacles around the lift for
convenient operation.
z Don’t place X-631/X-631+ on a vibrated object or
an oblique surface. Avoid direct sunlight and
moisture.
z Avoid splashing water on the surface of
X-631/X-631+, for it may cause permanent
damage to the system.
z The wires inside the cabinet and the probe rod
sensors are connected compactly. Any
disconnection may cause damage to the sensor.
Damage due to unauthorized disconnection is not
covered by warranty.
z The battery for the probe rod is the consumable
goods. After finishing its span life, the user should
change it in his own charge.
z Maintain X-631/X-631+ periodically for accuracy
z Turn off the power after operation. Check all bolts
and parts after maintenance, and tighten the
slackened bolts and parts in turn for safety.
z Check the packing list before installing. Do not
hesitate to contact LAUNCH or LAUNCH
distributors for any questions.
General Safety Instructions
Safety equipment may not be removed
and/or disabled.
Any work on the electrical installation may
only be performed by electricians.
The wheel alignment system may not be
operated in explosion-prone surroundings.
The operator must provide appropriate fire
protection measures at the measuring platform. In
particular, any flammable or self-combusting items
(such as cloths soaked in solvents or oil) and fluids, or
foreign items and other ignition sources, should not be
stored in the tool trolley.
Warning symbol tags used:
Legend: Pull the power plug before
opening the housing!
Obligation by the operator to be
considerate and avoid negligent acts:
The equipment was designed and constructed with
consideration to required harmonized standards, as
well as additional technical specifications. It therefore
corresponds with the current state of technology and
provides the maximum standard in safety during the
operation.
The machine safety, however, can only be
implemented during the operation, if all of the
required steps have been taken. The operator of the
machine has the obligation to plan these actions and
check their compliance.
The operator must specifically verify that:
• The machine is only used according to
specifications.
• The machine is only operated in perfect operational
condition and that the safety equipment is routinely
ii
LAUNCH X-631/X-631+ Wheel Aligner
inspected as to their operational condition.
• The necessary personal safety equipment for
operating, maintenance and repair personnel is
available and being worn.
• The operating instructions are always in a legible
condition and are completely available at the
machine location.
• The machine is only operated, maintained and
repaired by qualified and authorized personnel.
• This personnel is instructed routinely in all pertaining
questions of work safety and environmental
protection, and knows the operating instructions,
especially the safety instructions contained therein.
• All safety and warning labels attached to the
machine are not removed and are legible.
Concrete safety instructions
and applied symbols
Concrete safety instructions are provided in the
following operating instructions which will point out
any unavoidable remaining risks during the machine
operation. These remaining risks contain hazards for:
Persons
Product and machine
The environment
Symbols used in the operating instructions should
draw attention to the safety signs!
This symbol points out that specifically
personal injury risks may be anticipated (Mortal
danger, risk of injuries).
completely read!
Basic safety measures during normal
operations:
The machine may only be operated by trained and
authorized personnel who know the operating
instructions and are capable of working with them!
Prior to switching the machine on, check and verify
that:
Only authorized personnel are located within the
working range of the machine.
No one can be injured when the machine is activated!
Check the machine for visible damages prior to use
and verify that it is only operated in perfect condition!
Report any problems immediately to the supervisor!
Prior to each operating start, check and verify that all
safety equipment operates perfectly!
Basic safety measures during service
and maintenance:
Adhere to the inspection and maintenance intervals
specified in the operating instructions!
Block access to the work area of the machine
to unauthorized personnel prior to performing
maintenance or repairs! Attach or set up a warning
sign that points out maintenance or repair work!
Pull the power plug prior to any maintenance
or repair work or switch off the main switch for the
power supply and secure with a lock, if the power
supply is installed.
The key to this lock must be in the hands of the
person that is completing the maintenance or repair
work! Only use perfect load suspension and lifting
equipment when replacing heavy machine parts!
This symbol signifies that especially
hazards for the machine, material and the
environment may be encountered.
The most important objective of the safety signs
exists in the prevention of personal injuries.
If the warning triangle with the wording “danger” is on
a safety notice, hazards for the machine, material and
the environment are not excluded.
If the warning triangle with the wording “caution” is on
a safety reference, personal injuries are not
anticipated.
The applied symbol cannot replace the text of the
safety reference. The text must therefore always be
Properly dispose of environmentally
hazardous lubricants, coolants or cleaning agents!
Working on the electrical equipment:
Repairs on electrical equipment of the
machine may only be performed by trained
iii
LAUNCH X-631/X-631+ Wheel Aligner
electricians!
Electrical equipment must be routinely inspected!
Re-attach any loose connections!
Immediately replace damaged lines/cables!
Always keep housings of electrical equipment closed!
Access is only permitted for authorized personnel
with key/tools!
Never spray the housing of electrical equipment with
a hose when cleaning!
Pay attention to rechargeable battery
references and disposal regulations:
Lithium Rechargeable batteries:
• Do not throw into fire
• Only charge in the chargers provided in the delivery
• Protect from water sprays
• Do not open or short-circuit electrical contacts
• Do not use if the housing has been damaged or if
the electrical contacts have been damaged
Observe environmental regulations:
The legal regulations for waste prevention and
proper recycling/disposal must be adhered to for all
operations on and with the machine.
Especially during installation, repair and maintenance
operations, water-polluting materials, such as:
Lubricants and oils - hydraulic oils - coolants.
Solvent-containing cleaning liquids may not pollute
the ground or reach the sewage system!!
These materials must be stored, transported,
collected and disposed of in suitable containers!
iv
LAUNCH X-631/X-631+ Wheel Aligner
Ta ble of Contents
Introduction .................................................................1-1
Definition.................................................................1-1
When Is Wheel Alignment Required.......................1-1
Main Vehicle Alignment Parameter.........................1-1
Toe-in and Toe-out..............................................1-1
Kingpin Inclination (SAI).....................................1-1
Caster.................................................................1-2
Thrust angle .......................................................1-2
Wheelbase Difference........................................1-2
Track Width Difference.......................................1-3
Functions................................................................1-3
Features .................................................................1-3
Specifications .........................................................1-4
Requirements on Surroundings..............................1-4
Working Principle....................................................1-4
Structures....................................................................2-1
Overall Structure.....................................................2-1
Wheel Aligner Main Unit .........................................2-1
Probe Rods.............................................................2-1
Wheel Clamps ........................................................2-3
Wheel Clamp Hanging Bracket...............................2-3
Turntables...............................................................2-3
Steering Wheel Holder ...........................................2-3
Brake Pedal Depressor...........................................2-4
Calibrating Frame and its Converter Connector
(Optional)................................................................2-4
Basic Operation Procedures .......................................3-1
Get Vehicle Information ..........................................3-1
Wheel Alignment Checking.....................................3-1
Adjustment..............................................................3-1
Test-drive................................................................3-1
Operation Instructions.................................................4-1
Preparation.............................................................4-1
Operation procedures.............................................4-1
Standard Measurement ..........................................4-1
Quick Measurement .............................................4-10
Additional Measurement....................................... 4-11
System Measurement........................................... 4-11
Print ......................................................................4-22
3D Interface / 2D Interface....................................4-23
Help ......................................................................4-23
Exit........................................................................4-23
New Functions of X-631+ Wheel Aligner..............4-23
Maintenance ...............................................................5-1
Computer................................................................5-1
Wheel Clamp and Probe Rod.................................5-1
Printer.....................................................................5-1
v
LAUNCH X-631/ X-631+ Wheel Aligner Introduction
If the road wheel leans outwards from the vertical, it
Introduction
Thank you for using X-631/X-631+ wheel aligner
manufactured by Launch Tech Co., Ltd.
has positive camber and when leaning inwards from
the vertical - negative camber, looking from the front
or rear of the vehicle. See Fig.1.1.
Definition
X-631/X-631+ CCD wheel aligner adopts the charge
coupled device (CCD) with high resolution, the
clinometer with high precision and the accurate optics
imaging system.
X-631/X-631+ is a device designed to measure the
wheel alignment parameters and compare them with
the specifications provided by vehicle manufacturer. It
also gives instructions to the user for performing
corresponding adjustments so as to get the best
steering performance and reduce tire wear.
The wheel aligner compares the measured results
with the original data of vehicle manufacturer and
gives instruction to the user for adjustment, so its
databank should contain enough information.
X-631/X-631+ Wheel Aligner contains wheel
alignment databank of over 10,000 vehicle types all
over the world. User can also add new vehicle wheel
alignment data in the databank when necessary.
When Is Wheel Alignment
Required
Fig.1.1
Camber is measured in degrees.
Toe-in and Toe-out
The toe setting is the amount by which the front or
rear wheels point inwards or outwards at the front of
the wheel in relation to each other (see Fig.1.2).
When the wheels point inwards they are said to toe-in.
Toe-in figures are given a positive value. Conversely
when the wheels point outwards they are toe-out and
the figures are shown as a negative value.
z The driver has to firmly hold the steering wheel
to maintain a straight-ahead driving.
z Abnormal wear of tires occurs, such as single
side wear, concave-convexity wear and
featheriness wear.
z Too heavy or too light steering, or shaking at
high-speed driving.
z When the tire(s), steering knuckle or shock
absorber are replaced.
z When the vehicle is impacted.
z When the vehicle has covered the first 3000km
or 10000km.
Main Vehicle Alignment
Parameter
The wheel alignment mainly consists of camber,
toe-in, kingpin inclination, caster, etc. They are
designed mainly to improve the steering performance
and driving stability of the vehicle, and reduce tire
wear.
Camber
Camber is the leaning of the wheel inwards or
outwards from the vertical.
Fig.1.2
The purpose of correct toe is to ensure that the
wheels run parallel when the vehicle is driving. An
incorrect toe setting may affect the stability and
controllability of the vehicle.
Kingpin Inclination (Steering Axle
Inclination SAI)
Kingpin Inclination (KPI or SAI) is the angle of
inclination of the king pin towards the centre-line of
the vehicle from the vertical (see Fig.1.3).
1-1
LAUNCH X-631/ X-631+ Wheel Aligner Introduction
steering. To increase the tendency of the steering to
self-centre, the steering will normally be designed
with positive caster.
Thrust angle
The thrust angle is defined according to the driven
mode of vehicle.
z Rear wheel driven: the thrust angle equals half of
the toe-in difference between the two rear wheels.
As shown in Fig.1.5.
z Front wheel driven: the thrust angle equals half
of the toe-in difference between the two front
wheels.
Fig.1.3
Correct Kingpin Inclination can equalize the loads
applied on bearings so that the life of bearings can be
prolonged and the controllability of steering is
improved.
Without the inclination, the controllability of the
steering may be affected; further more, the vehicle
weight and the ground counterforce may cause
significant stress in the axle and finally damage the
axle.
z Four-wheel driven: the thrust angle equals half of
the toe-in difference between the two front
wheels plus half of the toe-in difference between
the two rear wheels.
The thrust angle is defined as positive when the
thrust line is towards left and negative when the line
is towards right.
If the thrust angle is not zero, the vehicle will have the
side-moving trend. In this case, adjust the front toe-in
of the drive wheels first, and then adjust the toe-in of
driven wheels.
Correct inclination of king pin is also helpful for the
vehicle to restore its straight-ahead position after
steering.
Kingpin Inclination is determined when the vehicle
suspension is designed. It is not service adjustable.
Caster
Caster is the tilting of the kingpin either forwards or
backwards from vertical, as viewed from side of the
vehicle. See Fig.1.4
Fig.1.4
When the king pin is tilted backwards from the vertical,
caster is positive. When the king pin is tilted forwards,
caster is negative.
Caster angle influences the directional stability of the
Fig.1.5
Wheelbase Difference
Wheelbase difference is defined as the angle
between the joint line of the centre of two rear wheels
and that of the front wheels. It is positive when
distance between the centre of the right wheels is
large than that of left wheels; and negative otherwise.
If the tread is available from the vehicle specifications,
then the wheelbase difference can be also expressed
by angle. See Fig. 1.6
1-2
LAUNCH X-631/ X-631+ Wheel Aligner Introduction
function.
z The probe rods provide LCD display function.
z Electronic level function.
z Black box self-diagnosis function.
z Front and rear probe rods interchangeable.
z Special test for Mercedes-Benz and BMW
vehicles.
Features
z Infrared 8-beam and 16-sensor loop
measurement, accurate and stable.
Fig. 1.6
Track Width Difference
Track width difference is defined as the angle
between the joint line of the ground-contact point of
left wheels and that of the right wheels. It is positive
when distance between the centre of the rear wheels
is large than that of front wheels; and negative
otherwise. If the wheelbases are available from the
vehicle specifications, then the tread difference can
be also expressed by angle. See Fig. 1.7.
Fig. 1.7
Functions
z Complete test: The X-631/X-631+ Wheel Aligner
can be used to measure the most wheel
alignment parameters, such as front wheel
toe-in, front wheel camber, caster, Kingpin
inclination, rear wheel toe-in, rear wheel camber,
thrust angle, wheelbase difference, tread
difference, axle offset, front wheel setback and
rear wheel setback, etc.
z Complete databank: wheel alignment data of
over 10,000 vehicle models is stored in the
system. User can also add new data to the
databank.
z Kingpin and camber adjustment real time
display function.
z HELP information for vehicle adjustment.
z Language operating prompt function.
z Emergency power supply and in-time charging
z Newly developed CCD signal processing
technology, nearly uninfluenced by the strong
sunlight.
z Complete system upgrading function.
z Unique voice prompt function and visualized
animation, very easy to understand.
z Trustworthy operating system to give more
convenient and safe operations.
z Keyboard quick switch operation.
z Both special version and common version are
provided for user to select.
z Both normal version and demonstration version
are provided to make user’s training more
convenient and quick.
z Large capacity (4000mAh) Lithium battery with
low power consumption and dormancy mode of
design.
z Camber, toe-in, battery electricity quantity,
charging status and electronic level, etc. can be
real-time displayed by LCD.
z In-block type of casting Aluminum alloy probe
rods can strongly guarantee the stability and the
test precision of the product.
1-3
LAUNCH X-631/ X-631+ Wheel Aligner Introduction
Specifications
Item Range
Front total toe-in f40嘙
Front toe-in f20嘙
Front camber f8.0嘙
Caster f20嘙
Kingpin inclination f20嘙
Rear total toe-in f40嘙
Rear toe-in f20嘙
Rear camber f8.0嘙
Thrust angle f5.0嘙
Notes:
1. The above measurement ranges can be confirmed only when the user follows the specified operation
procedures.
Requirements on Surroundings
Item Specification
Ambient temperature -10~+50ć
Relative humidity İ85%
Exterior magnetic
field strength
Lifter gradient İ1e
İ400A/m
Working Principle
The working framework of X-631and X-631+ Wheel
Aligner is as shown in Fig.1.8.
Fig.1.8
1-4
LAUNCH X-631/X-631+ Wheel Aligner Structures
top platform of the cabinet. Mouse and keyboard are
Structures
on the keyboard drawer. Printer is on the drawer in
the middle of the cabinet. The
the lower compartment of the cabinet.
computer host is in
Overall Structure
X-631/X-631+ Wheel Aligner mainly consists of the
wheel aligner main unit, probe rods, wheel clamps,
turntables (optional), steering wheel holder, and brake
pedal depressor, etc.
Wheel Aligner Main Unit
The main unit is an operation control platform. It
consists of cabinet, computer group, interface circuit,
power supply assembly, etc., as shown in Fig.2.1.
The computer group includes computer, monitor,
keyboard, mouse, and printer. The monitor is on the
The interface circuit includes the RF main emitter box.
The main emitter box is placed in the cabinet.
The power supply assembly includes power lead,
power socket, switch, and switch power. The power
switch is at the sideboard of cabinet. The power lead
is at the rear of the lower compartment inside the
cabinet. The power socket is at the spacer board and
near to the sideboard. The switch power supply is
also on the backboard of the cabinet.
Probe Rods
X-631/X-631+ is equipped with four probe rods. They
are FL, RL, FR and RR probe rods, as shown in
Fig.2.2. The front probe rods and the rear probe rods
can be across interchanged each other. If one of the
probe rods is changed, it is only necessary to
calibrate the changed probe rod, and the other three
probe rods needn’t be re-calibrated.
Fig.2.2 probe rod
Each probe rod is equipped with a CCD sensor at
end, and a blue-teeth emitter/receiver at the middle.
The CCD sensor picks-up the light pot coordinate and
Fig.2.1
transmit them to the computer through the blue-teeth
emitter. The computer processes the received
coordinate data signal.
There is a button/LCD panel in the middle of each
probe rod as shown in Fig.2.3.
Run-out
compensation
indicator
Power
indicator
2-1
Previous
LCD Rear Light
Power
Switch
Next
Fig.2.3
LCD Display
area
Level
bubble
Run-out
compensation
LAUNCH X-631/X-631+ Wheel Aligner Structures
Ģ
LCD display area has six functions: take the X-631 as
an example.
[Display start interface]: “Welcome to use X-631” is
displayed on LCD as shown in Fig.2.4.
Fig.2.4
[Display charging status]: “Battery Charging” is
displayed on LCD as shown in Fig.2.5. It indicates
that the battery is being charged.
Fig.2.5
“Charge Finished!” is displayed on LCD as shown in
Fig.2.6. It indicates that the battery charging is
finished.
Fig.2.6
Notes: When the characters of “>>>” are
displayed on LCD, it indicates that the probe rod
is being charged
When “=D-”is displayed, it
indicates that the charging is finished, and the
cables are connected, the probe rod is powered
by the power supply from outside.
[Display electric level]: “level” is displayed on LCD. It
indicates that the level position adjustment is being
performed, and the black float mark indicates the
position of the bubble level as shown in Fig.2.7.
[Display for run-out compensation]: To display the
current compensation status of the probe rod: 0
indicates the run-out compensation operation should
be started for the current probe rod. The interface is
as shown in Fig.2.9.
Fig.2.9
90,180, 270 and 360 indicates respectively the
corresponding angles by which the tire should be
rotated. The interface is as shown in Fig.2.10.
Fig.2.10
After finishing the compensation operation for the
probe rod, the level status of the probe rod will be
displayed on LCD, and the run-out compensation
indicator on the control panel of the probe rod will turn
green. The interface is as shown in Fig.2.11.
Fig.2.11
[Display probe rod measurement]: Real-time display
Camber (C), Toe-in (T) and Battery electricity quantity
(B) as shown in Fig.2.12.
Fig.2.7
The probe rod is level when the black float mark turns
to “OK” as shown in Fig.2.8.
Fig.2.8
Fig.2.12
[Display probe rod status]: Display the position of
probe rod and the electricity quantity of battery as
shown in Fig.2.13.
Fig.2.13
2-2
LAUNCH X-631/X-631+ Wheel Aligner Structures
[Display Standby status]: “Stand By…” is displayed
on LCD. It indicates that the probe rod is in standby
mode for saving electricity. The standby mode can be
switched to normal working mode as shown in
Fig.2.14.
Fig.2.14
Button area includes 5 buttons:
[Backlight]: Key to switch on/off the backlight of LCD.
[Next]: To perform the test according to the default
sequence (Select Vehicle Model Run-out
Compensation Kingpin Measurement Rear
Axle Measurement Front Axle Measurement
Print Report Form ) of the system.
[Previous]: To return to the previous operating
procedure during test.
[Run-out compensation]: It is the special key-press for
run-out compensation operation.
[Power switch]: Switch on/off the battery power
supply of the probe rod.
There is a 9V power supply socket on the side wall of
the probe rod box. It is used for charging the battery
of the probe rod. When the electricity quantity of the
battery is full, the charging circuit will automatically
stop charging.
Caution! Make sure to turn off the power of the
probe rod before charging it. The probe rod is a
precision component; please handle it with care
to ensure measuring accuracy.
Wheel Clamps
X-631/X-631+ has 4 wheel clamps (see Fig.2.15).
Turn the adjusting knob to adjust the span between
wheel claws, and then attach the clamp to the wheel
rim. Adjust the knob to make the wheel clamp fixed
on wheel rim tightly. Use the wheel clamp tie to bind
the wheel clamp and the wheel rim together.
The installation of wheel clamp is crucial to the test
result. The claws should be in even contact with the
wheel rim without touching the lead weight.
Avoid hitting during operation. Otherwise, distortion
may be caused and the test result may be influenced.
Wheel Clamp Hanging Bracket
X-631/X-631+ wheel aligner is equipped with 4 wheel
clamp hanging brackets as shown in Fig.2.16.
Fig.2.16
After unpacking, it is necessary to install these 4
hanging brackets on left and right side wall of the
cabinet.
Turntables
X-631/X-631+ has two mechanical turntables
(standard configuration, see Fig.2.17).
Fig.2.17 mechanical turntables
When testing, the turntables should be placed at the
front wheel position of vehicle on the lift.
Use the lock pin to lock the turntable before driving
the vehicle on. Pull out the lock pin after the vehicle is
stopped and the front wheels are at the center of the
turntables.
While testing, try your best to keep the vehicle front
wheel at the center of the turntable.
Steering Wheel Holder
X-631/X-631+ has a steering wheel holder as shown
in Fig.2.18. Use the steering wheel holder to lock the
steering wheel according to the tips on the screen.
Fig.2.15
Fig.2.18 Steering wheel holder
2-3
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