Sealey GA70.V2 User manual

INSTRUCTIONS FOR:
FOUR-WHEEL LASER WHEEL ALIGNER
MODEL No: GA70.V2
Thank you for purchasing a Sealey product. Manufactured to a high standard this product will, if used according to these instructions
and properly maintained, give you years of trouble free performance.
1. SAFETY INSTRUCTIONS
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS.
USE THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE
DAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
1.1 GENERAL SAFETY
WARNING! Ensure Health & Safety, local authority, and general
workshop practice regulations are adhered to when using this
equipment.
Maintain the wheel aligner in good condition (use an
authorised service agent).
Replace or repair damaged parts. Use genuine parts only.
Non-authorised parts may be dangerous and will invalidate
the warranty.
Locate wheel aligner in a suitable working area, keep
area clean and tidy and free from unrelated materials.
WARNING! Use aligner on vehicles that are parked on level
and solid ground.
Keep the gauge clean to ensure accurate performance.
DO NOT use outside in damp or wet weather conditions.
DO NOT allow untrained persons to operate the aligner.
DO NOT leave the aligner unattended.
WARNING! When setting front end alignment on commercial
vehicles never make adjustments to drop arms or
interconnecting links. Doing so could result in serious tyre,
wheel and steering problems.
 WARNING! The warnings, cautions and instructions
contained within this document cannot cover all possible
conditions and situations that may occur. It must be
understood that common sense and caution are factors
which cannot be built into this product, but must be
applied by the operator.
Any alignment changes deemed necessary as a result of
using this equipment must be made strictly in accordance
with the vehicle manufacturer’s recommendations.
1.2 LASER SAFETY
The GA70 utilises a Class II laser that emits low levels
of visible radiation (i.e. wavelengths between 400 and
700 nanometres) which are safe for the skin but not
inherently safe for the eyes. The Class II emission limit is set at the
maximum level for which eye protection is normally afforded by
natural aversion responses to bright light. Accidental eye exposure
is therefore normally safe, although the natural aversion response
can be overridden by deliberately staring into the beam, and can
also be influenced by the use of alcohol or drugs.
WARNING!DO NOT look or stare into the laser beam as
permanent eye damage could result.
DO NOT direct the laser beam at any person’s (or animal’s)
eyes as eye damage could result. If the beam is obstructed by
a person during use, release the contact switch immediately.
DO NOT use the equipment while under the influence of
alcohol, drugs or whilst on medication.
 Be aware that reflections of the laser beam from mirrors or
other shiny surfaces can be as hazardous as direct eye
exposure.
2. INTRODUCTION
Fast, simple and accurate alignment of both front and rear wheels.
Optimises vehicle performance and set up after installation or
modification of steering or suspension components. Simple and fast
to use, it is ideal for the busy professional workshop and has a fast
return on investment - potentially adding value to every steering or
suspension job. This fully portable kit is also ideal for track-day set
up for the enthusiast. Works on practically all cars and light
commercials with rim diameters between 320mm and 540mm.
Supplied with steering wheel clamp, wheel turn plates and wheeled
storage rack. Supplied with comprehensive operating instructions.
3. CONTENTS
The GA70 kit consists of: Mobile storage unit (see above)
1. Laser Measuring Head x 2 3. Steering Wheel Clamp
2. Alignment Assembly Flags x 2 4. Dished Turning Plate x 2
5. Extension Bobbins x 6 6. 13" Wheel Spacers
Original Language Version
Original Language Version GA70.V2 Issue: 1- 19/02/14
©Jack Sealey Limited

4.1. Accurate four wheel alignment should always take place with
reference to the vehicles centre line to avoid problems similar
the one shown in fig.1 where the vehicle will steer to the left
resulting in the steering wheel having to be turned to the right
to compensate. Basically, rear wheel tracking must be kept
equal to the centre line and correctly toed in or out according to
the vehicle manufactures specification in order for the vehicle
to handle correctly. Check thrust lines are equal to centre line
before proceeding.
Prior to use, check that the tyre pressures are correct and if
wheel covers are fitted, remove them. Ensure that the vehicle is
on a smooth level surface with the wheels pointing straight
ahead. DO NOT reverse the vehicle into position, but drive straight
ahead into position. Ideally vehicle should be on a ramp or lift
for easier access to the track rods, if adjustment is necessary.
5.1 FRONT TO REAR WHEEL ALIGNMENT.
5.1.1 Place both dished turn plates in front of the front wheels, with
their curve facing downwards. Drive the vehicle onto the turn
plates, ensuring they are central to the wheels (see fig.2).
5.1.2 Set steering wheel in straight ahead position and lock using the
steering wheel clamp, (see fig.3).
5. OPERATION
4. FOUR WHEEL ALIGNMENT
5.1.4 Hang the alignment assembly flags onto the top of the rear tyres
and make adjustments, so that the horizontal bar is sitting at
approximately the centre of the wheel and touching the tyre at
both ends. Ensure that the scale is at 90° to the wheel. Check the
spirit level to ensure the correct position is achieved, (see fig.5).
fig.3
fig.2
fig.4
fig.4
fig.4
fig.5
5.1.3 Hang both laser measuring heads on the front wheels with toe
 scalespositionedtothefrontofthevehicle,(seeg.4).Note:
Extension bobbins are used for vehicles that have dished
wheels (eg 4x4 or vans) where the silver bobbins won't reach
 ontothewheelrim.TheExtensionBobbinstoverthesilver
bobbins to give an extra 40mm of reach. Note: use 13" Wheel
Spacers under the Laser Measuring Heads when necessary.
Original Language Version
Original Language Version GA70.V2 Issue: 1 - 19/02/14
©Jack Sealey Limited
fig.1

fig.6
5.2 CHECKING TOE ON FRONT WHEELS Refer to fig.7
5.2.1 Now that you have aligned front wheels with rear wheels, (using
5.1.5 instructions) you next have to check your toe readings on
the front laser measuring head scales.
5.2.2 To obtain the toe, a small calculation is required. The reason for
this is because you cannot ensure that both the O/S/F and
N/S/F laser heads are positioned 100% equal to each other
when fitted to the wheels.
5.2.3 Rules for calculation
If both lasers are hitting in the same colour zones, you have to
add them together to obtain the vehicle's toe.
Example 1:
O/S/F Scale N/S/F Scale
- 1 Red -2 Red (Your toe is currently -3 toe out)
Example 2:
O/S/F Scale N/S/F Scale
+ 1 Green + 2 Green (Your toe is currently +3 toe in)
If the lasers are hitting in two different colour zones, you have to
subtract the lesser number from the higher number.
Example 3:
O/S/F Scale N/S/F Scale
- 3 Red + 4 Green (Your toe is currently + 1 toe in)
If the lasers are hitting in different colour zones but have
equal readings, then the toe is 0.
Example 4:
5.3 ADJUSTING TOE
Now that you have obtained the vehicle's toe using 5.2
calculations, you may now need to adjust the toe according to
the manufacturer's specifications.
When adjusting track rod ends, you must make sure you
adjust equally on both sides. So if you adjust half a turn on the
O/S/F then you must adjust half a turn on the N/S/F. Once you
have obtained the desired toe, using the calculations, you
must then check the rear flags to see whether they have equal
readings on both sides.
Please note: If you have adjusted the toe then the rear flag
reading will have changed from what you had originally set
them to in step 5.1.5. If they are still equal then the job is
complete.
If the rear flags are not equal then this would suggest you
have not adjusted the O/S/F and N/S/F track rod ends equally
when adjusting the toe, or the thrust angle is not equal on the
rear wheels in relation to the centre line.
fig.7
5.1.5 Turn on both front laser measuring heads. Now look to rear flags,
refer to fig.6, you will have a reading on both sides, (the
readings may not be the same). If you have two different readings
on the rear flags, this means you now have to adjust both front
track rod ends. You are now ensuring that the front wheels are in
line with the rears.
The first step to achieving this, is to add both rear scale readings
together and divide by 2.
For example:
N/S/R reading 2 O/S/R reading 4 (2 + 4 = 6 ÷ 2 = 3)
You now need to adjust both front track rod ends until you achieve
3 on both rear flags.
6. MAINTENANCE
6.1. After use, always secure all tools and measuring units back
onto the mobile storage unit to minimise damage.
6.1.1. If a laser beam becomes difficult to see on the gauge, the
batteries in question may need changing.
6.1.2. To replace the batteries, slide back the battery covers on the
laser alignment unit to reveal the battery compartments and fit
new batteries. Dispose of old batteries correctly (see Battery
Removal section on next page). Refit the covers.
6.1.3. Periodically clean all the measuring units and tools with a
slightly dampened cloth.
6.1.4. The lasers should be calibrated on a yearly basis and in
particular if the units are damaged and there is doubt that the
laser heads are still in alignment. Contact your Sealey dealer
to arrange returning the unit for re-calibration.
6.1.5 Alternatively, a calibration rig (Model No: GA70CR) is available
for purchase if required.
Original Language Version
Original Language Version GA70.V2 Issue: 1- 19/02/14
©Jack Sealey Limited

NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT: No liability is accepted for incorrect use of this product.
WARRANTY: Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INFORMATION: For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.
Environmental Protection.
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should
be sorted, taken to a recycle centre and disposed of in a manner which is compatible with the environment.
When the product is no longer required, it must be disposed of in an environmentally protective way. Contact
your local solid waste authority for recycling information.
Battery Removal.
1.Remove the battery covers on each laser alignment unit by unscrewing the cover screws, to reveal the battery compartment.
2.Remove the 4 AA batteries from their holder and dispose of the batteries according to local authority guidelines.
Under the Waste Batteries and Accumulators Regulations 2009, Jack Sealey Ltd are required to inform potential
purchasers of products containing batteries (as defined within these regulations), that they are registered with Valpak’s
registered compliance scheme. Jack Sealey Ltd’s Batteries Producer Registration Number (BPRN) is BPRN00705
Parts support is available for this product. To obtain a parts listing and/or diagram, please log on to www.sealey.co.uk, email
[e-mail] or phone [phone].
fig.8 fig.9