DVSA testing equipment approval requirements

1. INTRODUCTION
This document details the facilities and equipment which should be provided when new equipment is to be assessed for approval for use for statutory vehicle testing. All facilities and equipment detailed in this paper shall be provided and financed by the applicant.
Note: All written documentation shall be submitted in English.

2. REQUIREMENTS
Note: The information and requirements specified below are in addition to the items listed in the ‘Approval Procedure for Test Equipment to be used for Statutory MOT Testing’ document and its associated ‘Application for Approval’ forms. The information and requirements detailed below, which are different for each type of equipment, state what facilities and/or additional equipment needs to be made available at the time of approval to allow the approval work to be completed in one visit by the nominated engineer, as a further visit will carry an additional fee.

2.1 Decelerometer
A sample of the Decelerometer to be submitted for approval, including the items specified in the ‘Approval Procedure …’ document and details of the calibration procedure, should be sent to a site designated by the GEA. When the approval work has been carried out the Decelerometer will be either returned to the applicant or to an agreed destination.

2.2 Diesel Smoke Meter
Diesel Smoke Meters are tested by third party organisations and the specific requirements of the selected organisation(s) will have to be followed. Once satisfactory reports have been obtained the ‘Approval Procedure …’ paper details what is required to obtain approval and get the make and model number(s) of the new equipment added to the list of approved equipment.

2.3 Exhaust Gas Analyser
Exhaust Gas Analysers are tested by third party organisations and the specific requirements of the selected organisation will have to be followed. Once a satisfactory report has been obtained the ‘Approval Procedure …’ paper details what is required to obtain approval and get the make and model number(s) of the new equipment added to the list of approved equipment.

2.4 Headlamp Beam Tester
A sample of the Headlamp Beam Tester (HBT) to be submitted for approval should be properly installed on a level surface in an undercover location which is suitable to be used for testing the headlamp alignment of a four wheeled vehicle. Three four wheeled vehicles, one fitted with headlamps conforming to the European ‘E’ Beam pattern, another fitted with Gas Discharge and the third with clear-lens type headlights should be available. (See ‘MOT Inspection Manual for Cars & Light Commercial Vehicle Testing for details of beam patterns) Prior to approving the HBT, a demonstration of the calibration device will be necessary. Each part of the calibration device should carry an identity number. The principle of HBT calibration devices varies but when a laser beam is used in conjunction with a spirit level, a certificate will be required to confirm that the laser beam is level when the spirit level shows level. In other cases, a suitable
certificate will be required to cover the pertinent aspects of the calibration device. Photocopies of the paperwork will be required for record purposes.

2.5 Plate Brake Tester
A sample of the Plate Brake Tester (PBT) to be submitted for approval should be properly installed on a level surface in an undercover location which is suitable for testing the brakes of the maximum weight of vehicle for which the PBT has been designed. Prior to approving the PBT, a demonstration of the device to calibrate the brake force measurement will be necessary and, if the PBT has a means of weight measurement (either incorporated or
separate), a demonstration of that calibration device will be necessary also. Each part of each calibration device should be identified as a part of a particular set and the relevant certificate showing that the whole device is traceable to a national physical standard should be available for inspection. If fixed weights are used to calibrate the weight measurement, each of the weights should be identified and copies of the relevant proof certificates should be available. Photocopies
of the paperwork will be required for record purposes. The sub-sections below define the particular vehicle types which should be available to assess the
PBT. If a PBT is to be approved to cover more than one group of vehicle Classes, an example of a vehicle from the ‘largest’ Class should be made available.

2.5.1 Class I & II
A full sized motorcycle at the upper end of the weight range with a competent rider should be available. The specification for a PBT for testing Class I/II vehicles states that the PBT should be suitable for testing a motorcycle with either a left or right mounted sidecar but that is an installation issue which is assessed during approval of premises, a motorcycle with sidecar is not necessary at PBT approval.

2.5.2 Class III & IV
Class III/IV covers cars and light goods vehicles with a Gross Vehicle Weight (GVW) of up to 3000 kg. A goods vehicle, partly or fully laden, with an axle load of not less than 1200 kg should be available. The goods vehicle could be a Class VII vehicle provided that the axle weight does not exceed the design limit for the PBT and the track width is suitable, eg. Nissan Cabstar. If there is no weight measurement included with the PBT, as it is not required for a Class III/IV PBT, the vehicle should be weighed at a public weighbridge and the weight tickets should show weights for each axle individually. The specification for Class III/IV states that the PBT shall be capable of testing the single wheel of a three-wheeled vehicle but it is not necessary to supply a three-wheeled vehicle provided the requirement can be checked using one wheel of a four-wheeled vehicle.

2.5.3 Class VII
Class VII covers light goods vehicles with a GVW in the range 3001 to 3500 kgs. A goods vehicle, partly or fully laden, with an axle load of not less than 1500 kg should be available.

2.6 Roller Brake Tester
A sample of the Roller Brake Tester (RBT) to be submitted for approval should be properly installed within a level area in an undercover location which is suitable for testing the brakes of the maximum weight of vehicle for which the RBT has been designed. Prior to approving the RBT, a demonstration of the device to calibrate the brake force measurement will be necessary and, if the RBT has a means of weight measurement, a demonstration of that calibration device will be necessary also. Each part of each calibration device should be identified as a part of a particular set and the relevant certificate showing that the whole device is traceable to a national physical standard should be available for inspection. If fixed weights are used to calibrate the weight measurement, each of the weights should be identified and copies of the relevant proof certificates should be available. Photocopies of the paperwork will be required for record purposes. The sub-sections below define the particular vehicle types which should be available to assess the RBT. If a RBT is to be approved to cover more than one group of vehicle Classes, an example of the smallest vehicle from the ‘smallest’ Class and the largest vehicle from the ‘largest’ Class should be available.

2.6.1 Class I & II
Two motorcycles with a competent rider should be available;

i) a full sized motorcycle at the upper end of the weight range, and
ii) a small, low ground clearance scooter, with 10″ wheels, eg. a Honda Vision.

The specification for a PBT for testing Class I/II vehicles states that the PBT should be suitable for testing a motorcycle with either a left or right mounted sidecar but that is an installation issue which is assessed during approval of premises, a motorcycle with sidecar is not necessary at PBT approval.
Note: The means of weight measurement, with its associated calibration device, shall be available also.

2.6.2 Class III & IV
Class III/IV covers cars and light goods vehicles with a GVW of up to 3000 kg. Two vehicles should be available;

i) a small, low ground clearance vehicle, eg. an early Mini or a low sports car, and
ii) a goods vehicle, partly or fully laden, with an axle load of not less than 1200 kg.

The goods vehicle could be a Class VII vehicle provided that the axle weight does not exceed the design limit for the RBT and the track width is suitable, eg. Nissan Cabstar. If there is no weight measurement included with the RBT, as it is not required for non-ATL Class III/IV, the goods vehicle should be weighed at a public weighbridge and the weight tickets should show weights for each axle individually. The specification for Class III/IV states that the RBT shall be capable of testing the single wheel of a three-wheeled vehicle. However, it is not necessary to supply a three-wheeled vehicle provided the requirement can be checked using one wheel of a four-wheeled vehicle.

2.6.3 Class V
Class V covers privately-owned buses over a very wide range of GVW. The range of vehicles goes from small van derived 13-seater buses to a maximum size three axle double deck bus. To check several aspects of the specification a heavily laden vehicle is required. The vehicle need not be a bus; a tipper lorry would be ideal. The vehicle needs to have one axle with a load of not less than 9000 kgs. Assuming the RBT has a coefficient of friction of 0.6 (when wet), each wheel should then produce a brake effort of around 2700 kgf which is necessary to check the more demanding aspects of the specification properly. To minimise the time the laden vehicle is on site, a smaller vehicle of not less than Class VII size, could be used for the majority of approval work. If there is no weight measurement included with the RBT, as it is not required for Class V, the laden vehicle should be weighed at a public weighbridge and the weight tickets should show the
weights for each axle individually.

2.6.4 Class VII
Class VII covers light goods vehicles with a GVW in the range 3001 to 3500 kgs. A goods vehicle, partly or fully laden, with an axle load of not less than 1500 kg should be available. If there is no weight measurement included with the RBT, as it is not required for Class VII, the vehicle should be weighed at a public weighbridge and the weight tickets should show the weights for each axle individually.

2.6.5 ATL annexes
When a RBT is part of an Automated Test Lane (ATL), the test follows an automatic procedure. A suitable vehicle should be made available to allow our engineer to drive the vehicle on to the RBT and check that the procedure is correct to that laid down in annexs-1, 2 and 3 of the RBT specification. Classes III and IV ATL RBT’s require the ability to weigh axles and record these weights (either by a device which is incorporated in the equipment or a remote facility that automatically transfers axle weight data to the equipment). In order to check the accuracy of the weighing device, a vehicle should be weighed at a public weighbridge and the weight tickets should show the weights for each axle individually. Failing this, a second weighing device can be used to compare the reading from the RBT’s weighbridge, however if this is the method used, then a recently dated and credible calibration certificate for the second weighing device must be presented to the engineer.

2.7 Tyre Tread Depth Gauge
A sample of the Tyre Tread Depth Gauge to be submitted for approval should be sent with the items specified in the ‘Approval Procedure …’ paper to a site designated by the GEA. When the approval work has been carried out the Tyre Tread Depth Gauge will be either returned to the applicant or to an agreed destination.

2.8 Wheel Play Detector Plates
A sample of the Wheel Play Detector Plates to be submitted for approval should be properly installed on a level surface in an undercover location which is suitable for assessing the performance of the equipment using the maximum weight of vehicle for which the equipment has been designed. A suitable vehicle with at least one axle loaded at or near to the maximum weight for which the equipment has been designed should be available on site. The vehicle should have been weighed at a public weighbridge and the weight tickets should show the weights for each axle individually. Technical specifications must be available to allow the engineer to calculate the amount of force being applied to the wheel movement plate/plates.

2.9 Wheel Turning Plates
A sample of the Wheel Turning Plates to be submitted for approval should be properly installed on a level surface in an undercover location which is suitable for assessing the performance of the equipment using the maximum weight of vehicle for which the equipment has been designed. A suitable vehicle with the front axle loaded at or near to the maximum weight for which the equipment has been designed should be available on site. The vehicle should have been weighed at a public weighbridge and the weight tickets should show the weights for each axle individually.

2.10 Speed Limiter Testing Devices
A sample of the Speed Limiter Testing Device to be submitted for approval should be delivered to a site designated by the GEA together with the associated calibration equipment, the performance of which forms part of the approval procedure. A member of the supplier’s staff should be present during the approval procedure. The supplier is responsible for removal of the equipment from the site.

2.11 Brake pedal Application Device
A pressure pad/ force measuring device should be provided to allow the engineer to check that the Brake Pedal Applicator can apply a force of 25kg on the service brake pedal for a minimum period of 5 minutes.