iopalliance.blogg.se - Reflector 2 manual

You must fail a British American type lamp if its ‘hot spot’ centre is any of the following: The generally also have a circular lens marked with a figure ‘1’ followed by an arrow indicating the direction of dip. Criteria for European beam headlamp aimīritish American headlamp - check on main beamīritish American type headlamps are checked on main beam if they have an asymmetric main beam pattern with a central area of maximum intensity, known as a ‘hot spot’.

white light does not show in the zone formed by the 0% vertical and 0.5% horizontal lineĭiagram 1.

for headlamps with centres more than 850mm from the ground, the beam image horizontal cut-off is between the 1.25% and 2.75% horizontal lines.

for headlamps with centres at 850mm or less from the ground, the beam image horizontal cut-off is between the 0.5% and 2.75% horizontal lines.

beam image ‘kick up’ is visible on the screen, unless it has been masked or it has a flat top beam pattern.

a wedge of light above the horizontal towards the left, known as the ‘kick up’įor European type lamp to pass, you must make sure that:.

European type - check on dipped beamĮuropean type lamps have one of the following: You must not carry out repairs during an MOT test, but you can make minor adjustments to the headlamp aim. Position the vehicle on the designated headlamp aim standing area.Īlign the headlamp aim testing equipment to the vehicle in accordance with the manufacturer’s instructions.ĭetermine the appropriate headlamp beam image and its aim (see Diagrams 1, 2 and 3).įor complex lens systems - meaning those that have more than one lamp behind a single lens - make sure the test equipment is aligned exactly on the centre of the dipped beam pocket. On vehicles with hydro-pneumatic suspension systems, it’s necessary to have the engine running when checking headlamp aim. If this would result in failure for beam aim being too low, you should re-check the beam aim with the control set at its ‘highest’ position. If driver’s beam aim controls are fitted, you should test the beam aim without altering the control setting. It’s acceptable for masks or converter kits to be fitted to right hand dip headlamps to temporarily alter the lamp for use in the UK by removing the beam ‘kick-up’ to the right.

The type of headlamp will determine whether the aim must be checked on dipped or main beam (see Diagrams 1, 2 and 3).Ī flat top or other alternative headlamp dipped beam pattern is acceptable as long as all of the beam upper edge, including any ‘peak’ is contained within the appropriate tolerance band. You must inspect all dipped beam headlamps fitted. (ii) missing, inoperative or more than ½ not functioning in the case of LED (i) with up to ½ light sources not functioning in the case of LED Tricycles and quadricycles classed as mopeds do not need a main beam headlamp.Ī ‘light source’ means any bulb, LED or other means of emitting light.

motorcycle derived tricycles with a maximum width over 1,700mm.

tricycles and quadricycles with a maximum width over 1,300mm.

The following must have a pair of main beam headlamps and a pair of dipped beam headlamps – can be separate or a single pair of headlamps:

mounted symmetrically - if there’s 2 lamps.

mounted symmetrically about the centre - if they’re adjacent to another lamp, such as there’s one dipped beam lamp and one main beam lamp.

mounted centrally - if there’s only one lamp.

Tricycle and quadricycle headlamps must be: You must assess damaged or repaired lamps for security, colour, light output and durability. If 2 are fitted, neither the main beam or dipped beams need to be a matched pair. Vehicles first used before 1 January 1931 do not need headlamps.īuses first used before 1 October 1969 only need one headlamp.

not used at times of seriously reduced visibility.

You do not need to test headlamps on vehicles that are not fitted with position lamps, or have such lamps permanently disconnected, painted over or masked, that are:

are the same size and shape that they are symmetrical to each other.

emit light of substantially the same colour and intensity.

These can be separate or a single pair of headlamps. ‘Mandatory headlamps’ are a matched pair of main beam headlamps and a matched pair of dipped-beam headlamps.