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  • Diesel particulate filters – and the MOT In late September, a labour Peer in the House of Lords, Lord Berkeley, asked the Government...
  • As Testers know, Special Notice 3 0 2013 took effect on 26th June this year. It mandated a new way of measuring and recording brake...
  • Last summer the EU Commission, just a year after their last load of MOT revisions issued a proposed new ‘Regulation’ about MOT Testing....
  • Guess what currently appears to be an 'heinous' word in the motor trade vocabulary ********?It is a little word which often can be used to...
  • Transponders have been around for some time on vehicles, in 1994 Ford Motor company started to fit transponders to Fiestas, Transits,...
  • Over last Saturday’s leisurely breakfast, I was reading the motoring section of the Weekend Telegraph and was intrigued by a column’s...
  • MOT test lanes come in various shapes and sizes, which all change according to the dimensions of the garage and the class of vehicle/s the...
  • Do you know the distinction between a repaired part and a remanufactured part? Is reconditioned any better than refurbished? At every level...
  • About 15 years ago the police identified an increasing risk on the roads from affluent middle-aged men attempting to recapture their lost...
  • As we reported when the formal consultation for exempting classic vehicles from MOT Testing was published, the Government claims there’s...
  • Theoretically vehicle servicing should ensure the vehicle is maintained in accordance with the manufacturers' recommendations. But it's not...
 
Friday, 07 September 2012 13:58

MOT Test Lanes, Equipment and the possibility of becoming a VTS Featured

Written by

MOT test lanes come in various shapes and sizes, which all change according to the dimensions of the garage and the class of vehicle/s the Vehicle Testing Station (VTS) intends to test. The Vehicle and Operator Services Agency (VOSA) provides recommended layouts and test lane specifications for all classes of vehicle, in a document entitled "requirements for authorisation", which can be downloaded from: www.businesslink.gov.uk

If you are thinking of applying to become a Vehicle Testing Station (VTS) all of the documents and application forms are available there. Simply go to the Businesslink web site, select "your business sector" then "transport and logistics"

However, please note that the specifications provided are the minimum test lane requirements for each class of vehicle. Meeting these minimum requirements will enable you to test most of the vehicles on the road in that class, but will not guaranty that you can physically test all of them. So be careful, if you intend to test a fleet of very large class-VII vans for example, it's worth checking that they fit into the test bay. Buying a class VII test bay does not mean that it will be able to test all class VII vehicles; it means that it meets the VOSA Class VII minimum requirements, so always check with your supplier who will be most likely be able to modify a standard lane to meet your requirements.

What type of lane?

Class IV and VII vehicles can be tested using a "standard test lane", a "one person test lane" (OPTL) or an "automated test lane" (ATL) all other classes can only be tested using a "standard test lane", so what's the difference? Well apart from the fact that a standard test lane requires a second person to act as an assistant, the only other difference is the level of equipment needed, for example a "standard test lane consists:

  • An inspection lift or pit
  • Jacking beam
  • Roller or plate brake tester
  • Headlamp beam setter
  • Exhaust gas analyser
  • Diesel smoke meter

A "One Person Test lane" requires the same as above, plus 3 additional pieces of equipment, which are:

  • Steering and wheel play detectors
  • Brake-pedal application device
  • Light inspection mirrors or colour CCTV system

The additional equipment basically removes the need for an assistant.

An "automated test lane" comprises of all for mentioned equipment, but also calls for the brake tester to be fully automated. Using a fully automated brake tester speeds up the test by checking both wheels of the same axle at the same time, guides the examiner through the test and keeps a data base of vehicles tested. Running both roller sets together greatly shortens the time taken to conduct a test. However, using an automated roller brake tester for the first time does take some getting used to. One of the biggest problem areas is that of the operator applying the brake too quickly, which can cause the vehicle to climb out of the rollers, thus aborting the test.

With both wheels rotating there's nothing to anchor the vehicle in the rollers, so the brake must be applied slowly, once the operator has learnt this the test becomes very quick.

If you are operating as a standard test lane, to become a OPTL or an ATL you must reapply to VOSA.

Equipment specification:

All equipment used for tests must meet VOSA's specifications and all apart from the lift/pit and jacking beam must be fully VOSA approved, a list of approved equipment can also be found on: www.businesslink.gov.uk or on www.gea.co.uk
Apart from the major equipment, there's also a requirement for the following miscellaneous equipment:

  • A tyre tread depth gauge selected from VOSA's latest list of acceptable equipment,
  • Corrosion assessment tool,
  • Suitable pinch bars,
  • Steel tape measure,
  • Wheel chocks for the class of vehicle to be tested
  • A hand held low voltage inspection lamp.
  • Adjustable captive bearing based turning plates
  • A calibrated decelerometer from VOSA's latest List of Acceptable Equipment

Calibration and maintenance:

All testing equipment must be kept in good working order. Measuring apparatus must be calibrated in accordance with VOSA's requirements. If an Item of mandatory test equipment is not re-calibrated by its due date then testing which uses that item will be prevented until the item is re-calibrated. Maintenance contracts and calibration certificates are inspected regularly by VOSA.

Headlamp Aim:

According to VOSA's website, incorrect headlamp aim is the largest MOT failure item, with around 21% of heavy goods vehicles (HGV's) failing on headlamp aim every year; around 13% of passenger service vehicles (PSV's); and, 16% of cars.

So checking that VTSs are measuring and setting the headlamp aim correctly is becoming an important issue, here are the basic rules:
For a vehicle with headlamps positioned at a height of 850mm or lower to pass an MOT, the beam image "cut-off line" of both lamps should be between the two red lines of the equipment's screen; these are set at 0.5% to 2% inclination.

A vehicle with headlamps higher than 850mm should show the "cut-off line" between the equipment's blue lines, which are at 1.25% and 2.75%

On all headlamps the beam image "break point" should be to the left of the equipment's 0% vertical line and to the right of the 2% vertical line and the beam image "kick-up" must be on the nearside. A guide to correct headlamp aim can be found on www.gea.co.uk

Please note that this is a rough guide to test lanes, VOSA are continuously updating their requirements for authorisation, so please download the latest documents from:

www.businesslink.gov.uk

Read 7825 timesLast modified on Wednesday, 06 February 2013 09:26
Dave Garratt

Chief Executive, GEA:
MOT Equipment.

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