THE HISTORY OF BRAKE SAFETY
The brake system is arguably the most important part of a vehicle. There are a variety of regulations for the design and implementation of each system, but brakes remain the only element that are comprehensively regulated.
In Australia the first Australian Design Rules (ADRs) for braking performance of vehicles were published in the mid 1970s as ADR 31 for cars, ADR 33 for motorcycles and ADR 35 for heavy vehicles. All these ADRs classified deceleration and documented the test procedure required to be undertaken.
These requirements mirrored many of the regulations existing under the ECE directive and provided a comprehensive evaluation of the vehicle’s performance in both its laden and unladen conditions and under conditions of partial brake failure. In addition, certain tests were introduced to document the performance of the vehicle under high-fade conditions, which ensured that the vehicle’s braking performance could sustain the decelerations documented in the ADR even under the most arduous conditions.
These regulations remain in force in almost exactly the same form as they were introduced in the mid 1970s. While the method of measuring their performance has changed, the overall numbers have varied minimally despite a continuing process to harmonise the new-vehicle design regulations between countries.
In recent times under new World Trade Organisation initiatives, most countries have agreed to adopt the new United Nations/ECE regulations as the overall worldwide guide for vehicle safety performance, particularly in relation to braking performance. All countries will likely maintain their own rules but harmonise them to effectively reflect on the same common technical requirement, which will make certification and homologation of motor vehicles considerably easier than in the past.
The latest heavy-vehicle brake regulations:
New Australian Standard
AS 3450:2021 Earth-moving machinery – Wheeled or high-speed rubber-tracked machines – Performance requirements and test procedures for brake systems (ISO 3450:2011, MOD).
The new standard adopts ISO 3450:2011 with modifications for Australia, which specifies the minimum performance requirements and test procedures for the service, secondary and parking-brake systems of wheeled and high-speed rubber-tracked earth-moving machines, for the uniform assessment of those brake systems.
The new standard supersedes AS 2958.1-1995 and is an important step in moving away from the inadequacies of AS2958. It focuses on performance measured in average deceleration, which makes it more consistent with other standards and methods. It also provides reasonable criteria that maps on to the standard outputs from an electronic brake meter. AutoTest’s AutoStop Heavy complies completely with this requirement.
Brake testing with GPS
Many jurisdictions are changing their requirements for conducting dynamic brake tests to include the GPS location of where the test was conducted. This ensures that the test was conducted in a suitable location and road surface/grade. Most recently the Queensland government has adopted this requirement for all tests that are reported to the Department of Transport for mobile Approved Inspection Station (AIS) or personalised transport vehicles. All of AutoTest’s brake meters can be purchased with a GPS module or are able to be retrofitted with the module.
AUTOSTOP HEAVY BRAKE METER
How does it work?
AutoStop Heavy is an electronic in-vehicle brake-testing device that is fully compliant with transport-authority requirements across Australia, including AS2958 Australian Standard and ISO 3450 testing.
This brake meter is designed to test the service and emergency brakes of heavy and slow-moving vehicles, off-road transport and even forklifts. Designed to be portable and user friendly, AutoStop Heavy brake-performance tester measures average and maximum deceleration, stopping distance, test speed and pedal-force required to stop a heavy vehicle.
Once the vehicle has come to a stop, the brake tester evaluates the brake performance and prints the results of the test. AutoStop Heavy comes with a data-logging facility that allows stored tests to be downloaded to a PC for storage and analysis.
By providing an accurate report and confirming braking performance, employers can protect personnel and ensure that vehicles comply with occupational health and safety concerns. Calibration is also internationally traceable through the National Association of Testing Authorities (NATA).
AutoStop Heavy is capable of providing physical evidence of brake performance before and after any vehicle alterations, mitigating risks. The device is designed to be easy to set up and records the test GPS location, providing the latitude and longitude of the test position.
Brake testing with AutoTest
Victorian-based manufacturer AutoTest Products takes an innovative approach to testing equipment to ensure a brake’s capabilities and operating performance are factored into the safety of a vehicle.
AutoTest provides a range of state-of-the-art automotive testing and diagnostic products designed to improve the accuracy of the test results used to meet safety regulations. It offers product lines to cover all corners of brake testing, from brake-friction material and brake fluid to suspension.
AutoTest supplies workshops, regulatory authorities and service testing stations across the world, including Australia, New Zealand, the US, UK, South Africa, Malaysia, Holland, France and Germany, with products from the AutoStop range.
The user manual is stored inside the USB drive that came in the box as a PDF file. The manual can be download from AutoTest Product website as well.
Adjust the contrast by using the ‘O’ menu command and pressing the up or down arrows. Refer to your manual for more information.
Charge the battery.
It is okay to leave the unit on charge all the time.
Check that the charge light is on. Measure the output voltage of the charge. Batteries normally have a life of 2-3 years. If the problem persists, call our Service Team.
After a test, press Y to print out the results. If the results displayed are not correct, press NO and repeat the test. Call our Service Team if the problem persists.
Wrong paper type – replace the paper roll. Clean dust and dirt from the printer with a dry brush.
No. Under no circumstances should you oil your printer, this will void your warranty.
The ribbon should be changed with every second roll of paper.
Where do I buy paper and ribbons?
From the online shop on our website or your local distributor. A paper pack consists of 2 paper rolls and 1ribbon.
No. Each sensor is individually calibrated; this must be done by Service Team.
Call our Service Team, and a technician will help you to adjust the meter.
Every test has the same pedal force reading. The pedal sensor wire is broken. Send the meter back for repair to AutoTest Products, or via your local distributor.
The cap should be loose for correct operation.
The brake meter was not firmly secured in the car – repeat the test.
The sensors may need adjustments – turn the brake meter off, then on again to perform a self-check.
Call the Service Team if the problem persists.
A moderate stop from approximately 35 km/h is best. Do not skid the vehicle, as this will provide poor results.
Maxi – 2 years.
It may take one business day to calibrate (excluding shipping and repairs).
Send it to AutoTest Products or through your local distributor.
What should I send when my AutoStop Brake Tester needs service and calibration?
Please send your brake meter, charger, business card
and up to date contact details.
Yes, we require a bond paid by credit card and
dispatch will be same day.Contact us for the hire forms.
AutoStop brake meters measure deceleration (braking efficiency) directly (which is the design parameter used in original homologation) to an accuracy of 2%. Distance is calculated by the meter in its internal computer using the average deceleration measurement, time to stop (from the internal real time clock – accuracy 1.0%) and the assumption that the final speed is zero. The double integration process involved in the mathematics compounds these measurement accuracies and dependent on the shape of the deceleration versus time trace can generate a different result. The difference will be much less than that obtained from using any peak deceleration instrument such as a Tapley meter. The difference is due solely to the mathematics and is not a function of the AutoStop meter. Regulators in certain jurisdictions still use “distance to stop” – because in the 70’s and 80’s direct measurement of braking efficiency to an accuracy of 2%. The regulations will “catch-up” eventually.
No, only one ID can be stored. Please press “N” on the Examiner ID prompt to reset it.
12 months parts and labour. 3 months parts and labour for repairs.
If the time is incorrect by one hour, check the daylight saving setting. Otherwise, contact us and a technician will assist you.
How do I get the latest version of the download software for my brake meter? The latest version of the download software is available for free download on our website.
Check that all cables are connected securely and are not damaged. If you are running Windows 2000, you must use the new Windows-based software, since the old MS-DOS data logging software is not compatible. You can download the latest download software free from AutoTest website.
At the Ready > prompt, press “L” to enter the datalogger menu. Press “C” at the datalogger menu to wipe all saved test data.
The device is not fastened properly, or has been turned on before fastening in the test position. Figure 1 shows correct test position. Needs to be seat belted into the passenger seat with the lid open and closer to the windscreen, not resting on the back
of the chair. Alternatively, you can place on the floor of the passenger seat facing the same direction.
Never hold on your lap for the test, between your legs, or on the floor of the driver’s side
Figure 1: AutoStop brake meter in position ready for testing. Secure in position before turning on and starting any testing.
You can download the latest version of our product manuals on the AutoTest website.
At “ready” press “x” then “A”, pressing “A” repeatedly will toggle between units.
At ready press “T” then “D”, an asterisk will be displayed beside the time indicating Daylight saving.
Press “B” at Ready > screen.
Please check pedal sensor reading. Press “c” at Ready>. Press “c” again, screen should show 0.XX N. Press on pedal sensor and see if the reading goes up accordingly. If there is a delay or the reading is not rising, please contact us.
Please contact our service department with the unit’s serial number at the ready and they will assist you in generating a new code.
The battery is not holding charge and needs to be replaced. Send it in to us for a replcement.
The charging socket may be damaged, or the LED may be blown. Send it in to us for repair. Please also send in with the charger you are using.
The battery is not holding charge and needs to be replaced. Send it in to us for a replacement.
That means 12V non-regulated. It should be shown as 14V if the charger output is regulated. We recommend using the charger that came with the Brake Meter only. Never use a 12V regulated charger, it will drain the battery. You can purchase a new charger through our website or your local distributor.
The charging light only indicate if a charger is plugged in, it won’t change according to the battery level.
My computer does not recognise my brake meter when plugged in via USB.
Please install the USB drivers included with the Brake Meter software, these are located in the ‘USB drivers’ sub-folder of the main folder where the datalogger was installed to (Typically: C:\Program Files (x86)\AutoTest\ Maxi and Heavy Datalogger).
Please contact us for further assistance if this still doesn’t recognise your Brake Meter.
Open ‘Device Manager’ and expand ‘Ports(Com & LPT)’. Search the list of devices for ‘USB Serial Device’ and to the right of its name will be the Com port number.
It is still possible to use a Brake Meter with serial connection on newer PCs that lack serial ports by using a USB-to-serial converter. Compatibility with individal converters may vary however and AutoTest can only offer minimal support in assisting you when using one.
How do I change the display views for km / mph, the unit of acceleration, graph mode etc? Refer to the manual, Section 4.
Battery may be flat- charge unit for 12 to 16 hours. Battery charger has failed – check battery charger output with multimeter, also check condition of fittings. Battery or internal electronics have failed – return unit for servicing.
Battery may be flat- refer below.
Battery may be flat- refer below.
Out of paper = remove printer cover plate and check paper roll. Refer manual Section 4.
Printer ribbon needs replacing- Refer manual Section 5.
Unit not secured into position properly.Foot has been lifted from pedal before vehicle has stopped.
Internal flash memory is not responding or it is faulty. Swtich off the unit and return it for servicing.
Internal flash memory is corrupt or unreadable.Press ‘N’ key to skip formatting. Switch off the unit and return it for servicing. Note: If ‘Y’ key is pressed, all existing data might get erased.
Clock memory is corrupt. Clock battery may be flat. Do NOT press ‘Y’. Press ‘N’and switch off the unit and return the unit for serviing.
Accelerometer chip is faulty. Return the unit for servicing.
Press and hold the POWER button down for 2-3 seconds, or until the power indicator light turns red.
When the printer is on, but has been inactive for a time, the red light will flash as the printer has en- tered power saving mode. To print again, press the Power button and the red light will stop flashing.
When connecting, it can take up to 20 seconds for the printer to pair. You will see the blue light flash- ing when it is paired. Restart the Bluetooth printer and make sure it is charged up.
This means that the printer is almost flat. Charge your printer, and it will print darker.
That the battery is almost flat. This means you must charge the device. (If the printer is charging, refer to the question below).
Yes. While the printer is charging the blue light will turn on. When the printer is off the light will be solid. When the printer is turned on while charging the blue light will flash.
Refer to your Printer User Manual point 3.2.7 BATTERY CHARGING on your USB, or download from our website – https://autotest.net.au/product/autostop-mini-plus-brake-meter/
Firstly, ensure batteries are correctly inserted. If they are, they may be flat. Replace the batteries. If the light tester will still not turn on, please contact our service department.
AutoLight won’t stay on.
The lamp only stays illuminated for approx. 3 secs, then a result is shown.
The light globe is not working.
Return unit for servicing.
AutoLight turns itself off during use.
The batteries may be flat. Replace them.
My AutoLight briefly flashed an incorrect reading and switched off quicker than normal.
The batteries in your unit are low and don’t have enough charge to power the unit. Please replace BOTH with 9-volt batteries.
How long does a battery last?
Many hundreds of Tests.
Can I use a rechargeable battery?
No. Rechargeable batteries have lower voltage and are not suitable.
How often do I need to calibrate my AutoLight Tester?
Every 12 months.
How long does it take to calibrate my AutoLight?
It may take one business day to calibrate (Excluding shipping and any repairs).
Where do I send my AutoLight for calibration?
Send it to AutoTest Products (see contacts) or your local distributor.
What should I send when my AutoLight needs service and calibration?
Please send the device, a business card and updated contact details.
How long does the warranty last?
12 months parts and labour.3 months parts and labour for repairs.
Can I get a longer cord?
Yes. A longer cord can be purchased as an optional extra, which is double in length. The unit must be recalibrated after the modification.
The manual for the Headlight Align is on the USB that is included with the unit. Additionally, it can be downloaded from our website.
Refer to the manual and follow the steps starting from Page 9, where the Fig 1 shows all the parts / pieces. You may also call us if you need further help.
The user manual is stored inside the USB drive that came in with the unit. The manual can also be downloaded on AutoTest Product website.
Go to “View Clock?” and Press number “1” to toggle daylight saving. If the time is out, please contact us.
No. The batteries are soldered on the circuit board. Please send the unit to us if your batteries are faulty.
This is normal. Please turn off the meter before putting it to charge.
The AutoStop Mini has been superseded by the Mini Plus and we no longer have a product page for it. Please contact our service department and they will arrange a download link for you.
Mini Plus -1 Year
Calibration due date is shown on the screen & shown on every test print out.
Go to the Program Files directory on the C Drive
Find the AutoTest folder
Right click on the folder
Click on the “Security” tab
For your user account which should be under your name or administrator click on the “Edit” button
Under the “permissions for everyone” list, tick “Allow” for “full control” and “modify”
Click Apply and ok
The installer should now work
Every 12 months. Send it directly to us, or via your local distributor for recalibration.
The Gas Analyser needs to be connected to the PC via the supplied cable. Earlier cables are RS232 and will need an RS232 to USB adapter to plug into a USB port. Current cables connect directly through the USB port to the Gas Analyser.
The user manual is stored inside the USB that came in the box. The manual can also be downloaded from our website.
You can purchase a paper pack through our website or your local distributor. A paper pack consists of 4 paper rolls.
Yes. You can purchase these directly through our website.
No. The Gas Analyser needs to be recalibrated after changing any sensors. Please contact AutoTest Products.
This is normal. Please turn off the meter before putting it to charge.
No. The batteries are soldered on the circuit board. Please send to AutoTest Products if your products are faulty.
The cable is broken. Send it to AutoTest Products or via your local distributor for repair.
You can purchase a paper pack through our website or your local distributor. A paper pack consists of 9 paper rolls.
Where is the user manual?
The user manual is stored inside the USB drive that came in the box as a PDF file. The manual can be downloaded from AutoTest Product website as well.
Adjust the contrast by using the ‘O’ menu command and pressing the up or down arrows. Refer to your manual for more information.
Charge the battery.
It is okay to leave the unit on charge all the time.
Check that the charge light is on. Measure the output voltage of the charge. Batteries normally have a life of 2-3 years. If the problem persists, call our Service Team.
After a test, press Y to print out the results. If the results displayed are not correct, press NO and repeat the test. Call our Service Team if the problem persists.
Wrong paper type – replace the paper roll. Clean dust and dirt from the printer with a dry brush.
No. Under no circumstances should you oil your printer, this will void your warranty.
The ribbon should be changed with every second roll of paper.
From the online shop on our website or your local distributor. A paper pack consists of 2 paper rolls and 1 ribbon.
No. Each sensor is individually calibrated; this must be done by Service Team.
I need to push the brake pedal very hard to get the AutoStop brake tester to work.
Call our Service Team, and a technician will help you to adjust the meter.
Every test has the same pedal force reading. The pedal sensor wire is broken. Send the meter back for repair to AutoTest Products, or via your local distributor.
The plastic cap on my load cell is loose.
The cap should be loose for correct operation.
The brake meter was not firmly secured in the car – repeat the test.
The sensors may need adjustments – turn the brake meter off, then on again to perform a self-check.
Call the Service Team if the problem persists.
A moderate stop from approximately 35 km/h is best. Do not skid the vehicle, as this will provide poor results.
Heavy – 1 Year.
It may take one business day to calibrate (excluding shipping and repairs).
Send it to AutoTest Products or through your local distributor.
What should I send when my AutoStop Brake Tester needs service and calibration?
Please send your brake meter, charger, business card
and up to date contact details.
Yes, we require a bond paid by credit card and
dispatch will be same day. Contact us for the hire forms.
AutoStop brake meters measure deceleration (braking efficiency) directly (which is the design parameter used in original homologation) to an accuracy of 2%. Distance is calculated by the meter in its internal computer using the average deceleration measurement, time to stop (from the internal real time clock – accuracy 1.0%) and the assumption that the final speed is zero. The double integration process involved in the mathematics compounds these measurement accuracies and dependent on the shape of the deceleration versus time trace can generate a different result. The difference will be much less than that obtained from using any peak deceleration instrument such as a Tapley meter. The difference is due solely to the mathematics and is not a function of the AutoStop Meter. Regulators in certain jurisdictions still use “distance to stop” – because in the 70’s and 80’s direct measurement of braking efficiency to an accuracy of 2%. The regulations will “catch-up” eventually.
No, only one ID can be stored. Please press “N” on the Examiner ID prompt to reset it.
12 months parts and labour. 3 months parts and labour for repairs.
If the time is incorrect by one hour, check the daylight saving setting. Otherwise, contact us
and a technician will assist you.
How do I get the latest version of the download software for my brake meter? The latest version of the download software is available for free download on our website.
My download software / datalogger isn’t working.
Check that all cables are connected securely and are not damaged. If you are running Windows 2000, you must use the new Windows-based software, since the old MS-DOS data logging software is not compatible. You can download the latest download software free from AutoTest website.
How do I clear the datalogger?
At the Ready > prompt, press “L” to enter the datalogger menu. Press “C” at the datalogger menu to wipe all saved test data
Why is the speed wrong?
The device is not fastened properly, or has been turned on before fastening in the test position. Figure 1 shows correct test position. Needs to be seat belted into the passenger seat with the lid open and closer to the windscreen, not resting on the back
of the chair. Alternatively, you can place on the floor of the passenger seat facing the same direction.
Never hold on your lap for the test, between your legs, or on the floor of the driver’s side
Figure 1: AutoStop brake meter in position ready for testing. Secure in position before turning on and starting any testing.
You can download the latest version of our product manuals on the AutoTest website.
At “ready” press “x” then “A”, pressing “A” repeatedly will toggle between units.
At ready press “T” then “D”, an asterisk will be displayed beside the time indicating Daylight saving.
Press “B” at Ready> screen.
Please check pedal sensor reading. Press “c” at Ready>. Press “c” again, screen should show 0.XX N. Press on pedal sensor and see if the reading goes up accordingly. If there is a delay or the reading is not rising, please contact us.
Please contact our service department with the unit’s serial number at the ready and they will assist you in generating a new code.
The battery is not holding charge and needs to be replaced. Send it in to us for a replacement.
The charging socket may be damaged, or the LED may be blown. Send it in to us for repair. Please also send in with the charger you are using.
The battery is not holding charge and needs to be replaced. Send it in to us for a replacement.
That means 12V non-regulated. It should be shown as 14v if the charger output is regulated. We recommend using the charger that came with the Brake meter only. Never use a 12v regulated charger, it will drain the battery. You can purchase a new charger through our website or your local distributor.
The charging light only indicate if a charger is plugged in, it won’t change according to the battery level.
My computer does not recognise my Brake Meter when plugged in via USB.
Please install the USB drivers included with the Brake Meter software, these are located in the ‘USB drivers’ sub-folder of the main folder where the datalogger was installed to (Typically: C:\Program Files (x86)\AutoTest\ Maxi and Heavy Datalogger).
Please contact us for further assistance if this still doesn’t recognise your Brake Meter.
Open ‘Device Manager’ and expand ‘Ports (Com & LPT)’. Search the list of devices for ‘USB Serial Device’ and to the right of its name will be the Com port number.
It is still possible to use a Brake Meter with serial connection on newer PCs that lack serial ports by using a USB-to-serial converter. Compatibility with individual converters may vary however and AutoTest can only offer minimal support in assisting you when using one.
How do I change the display views for km / mph, the unit of acceleration, graph mode etc? Refer to the manual, Section 4.
Battery may be flat- charge unit for 12 to 16 hours. Battery charger has failed – check battery charger output with multimeter, also check condition of fittings. Battery or internal electronics have failed – return unit for servicing.
Battery may be flat- refer below.
Battery may be flat- refer below.
Out of paper = remove printer cover plate and check paper roll. Refer manual Section 4.
Printer ribbon needs replacing- Refer manual Section 5.
Unit not secured into position properly. Foot has been lifted from pedal before vehicle has stopped.
Internal flash memory is not responding or it is faulty. Swtich off the unit and return it for servicing.
Internal flash memory is corrupt or unreadable.Press ‘N’ key to skip formatting. Switch off the unit and return it for servicing. Note: If ‘Y’ key is pressed, all existing data might get erased.
Clock memory is corrupt. Clock battery may be flat. Do NOT press ‘Y’. Press ‘N’ and switch off the unit and return the unit for servicing.
Accelerometer chip is faulty. Return the unit for servicing.
IMPORTANT THINGS TO KNOW
READ YOUR MANUAL INC. ACTIVATION STEPS – This can be found in the USB stick provided in the box, or on our website.
You need to be connected to Wi-Fi to activate your license
New users must activate their license through the Workshop Manager App
You cannot renew your license until it has expired.
BLUETOOTH PRINTER:
To turn on, hold ON button for a few seconds.
Follow prompts in BrakePro app to connect and print.
Hold Power button and Volume Down button at the same time for a couple of seconds.
This screen shot will be saved on the tablet. Go to FILES app and click on IMAGES tab. Then click on the SCREEN SHOT folder at the top to find your image.
You can email this image if you set up your emails on this tablet.
Your unit is having trouble acquiring a signal, take the unit outside. Alternatively connect your unit to a Wi-Fi network to assist in establishing a connection, this can reduce start up time considerably.
Through the Workshop Manager App. You will need to make sure you have downloaded it, and refreshed the app, as well as the Brake Pro app. You will need to calibrate and pay for your license every 12-months.
Go to: SETTINGS > ABOUT > VERSION
(See Fig 1 below)
Go to: SETTINGS > ABOUT > TABLET SERIAL
(See Fig 1 below)
When should I calibrate my Workshop Pro? Calibration is required yearly. Every time you renew the license. This can be done yourself through Workshop
Manager app.
*IN NSW YOU MUST SEND YOUR WORKSHOP PRO AND PEDAL EFFORT SENSOR TO US FOR YEARLY CALIBRATION.
When do I need to send in my Workshop Pro? You do not need to*. If you are having issues with the Workshop Pro (i.e. Won’t charge or won’t turn on),
you can take the device to your nearest Distributor. Alternatively, call our service line ( 3 8840 3016 ) for advice before sending your unit back.
Contact Service Team and they’ll walk you through this issue.
When activating my unit, I get an error such as ‘Address field too long’ or similar.
Please check your address. If the address is very long you may need to abbreviate it. Do not use special characters such as commas or slashes, as these will trigger errors. Just leave a space in their place when possible
Figure 1: The About screen shows your softwear version number, tablet serial number, android ID, and your GPS location zone.
Figure 2: Workshop Pro in position ready for testing. If the unit is moving in the seat, place on the floor of the passenger seat. Supplied velcro will secure in place.
Please clean up tests regularly by transferring them to the computer using the USB cable.
The time on my unit is wrong, how do I fix this? Change the time to AUTOMATIC if you had changed it manually. If it’s on network time but still incorrect, connect
to a network to get the updated time.
The time zone may be wrong, so swipe up on the bottom of the screen and press the circle button. Once you’re on the home screen swipe on the middle of the screen to open up the list of apps. Open ‘Settings’ and scroll down to select System Settings. Then select Date & Time. Switch off Automatic Time Zone if it’s on and then set correct Time Zone manually if that is wrong.
Open Settings from the Brake Pro app’s main menu and then select Test Results Settings. Choose your desired Units and then press either the house or gears icons to save your choice. You can also change the units for decelaration on the test results screen by pressing on the decelaration readings and choosing from the menu that pops up.
The Workshop Pro is moving relative to the vehicle.
This is a common error when the unit is not secured properly to the vehicle. See Figure 2 on previous page. The supplied Velcro will stop your Workshop Pro from moving,when attached to the carpet floor on the passenger side of the vehicle.
Never hold in your hand for the test, or between your legs, or on the floor of the driver’s side.
To delete individual saved test results, open Database on the main App menu. Hold your finger down on the test you want deleted and it will be highlighted in red. You can then select multiple tests to be deleted. Click the trash can in top right corner to delete the selected tests.
