The base of a groove in the original tread design shall be visible on the remaining quarter of the tread. You can use this guide if you are a driver or service inspector to make consistent decisions regarding tire wear, defects, and damage. Do not use a sharp probe – this may further damage the tire during inspection. Tire disposal companies may be responsible for removing used tires and transporting them to shred. The Tire Industry Federation`s Responsible Recycling Program offers such a service to fleet companies. It is operated under license from the Tyre Recovery Association and collector members of the system can be found by zip code on the www.tyrerecover.org website. After refurbishment, tire products can then be used for various purposes, such as: for landfill drainage, coastal protection, road pavement products and children`s playgrounds. Failed tread – dangerous* – worn below the legal minimum of a steered axle tyre and/or 50 % or more of the total number of tyres fitted to non-steered axles. Fault with exposed cable. (Dangerous* – PG9 can be issued if tire failure is likely) The survey of 90 drivers of light commercial vehicles was carried out during three tyre inspections in the Stafford North, Strensham North and Warwick South departments. Cuts deep enough to reach the cords or position, but less than 25 mm or 10% of the width of the cross-section (whichever is greater) and that have not damaged or exposed the cords or layers, do not violate the legal requirements for tires.
4. Premature tire wear Inflating the tires to the vehicle`s recommended pressure level ensures even tire pressure distribution, optimal handling and, as a result, a more uniform wear rate, allowing tires to stay in service longer. More than two-thirds of drivers surveyed were unaware of the new EU label for fuel-efficient tyres and what it means. Only 41% of respondents correctly identified the five factors tires can use to influence fuel consumption. This publication is available at www.gov.uk/government/publications/tyre-defects-and-damage-hgvs-buses-and-trailers/tyre-defects-and-damage-hgvs-buses-and-trailers 3. Fuel consumption By keeping tires at the right pressure, drivers can continue to drive with every fuel tank and help reduce CO2 emissions. If the tires are inflated too little, the footprint increases with the road surface, resulting in increased drag, which puts more stress on the engine. The rolling resistance of a tire with too low air pressure increases because it requires more energy to return to its original shape after each contact with the road. Proper tire inflation helps commercial fleets minimize their costs per kilometer. while saving fuel costs. The legal minimum tread depth in the UK for lorries (over 3500 kg) is given below. Andy Timms, Regional Director of the Freight Transport Association`s VIS Team, said: “It is important to remember that the tyres are the only part of the vehicle, whether it is a 7.5-tonne rigid assembly or a 44-tonne trailer, which are in contact with the road surface and therefore play a crucial role in the vehicle`s road safety and the daily safety of drivers.” Misalignment of the wheels can lead to stronger friction of the tires against the road, which increases wear and rolling resistance.
If one of the wheels of a tractor and a 12-wheel trailer is not properly aligned, the overall strength of the vehicle increases. Misalignment can also result in higher drag if the tractor and trailer are not moving parallel to the direction of travel. Tyres older than 10 years shall not be fitted to the front steering axle(s) and to a wheel configuration independent of a minibus. If it is a retreaded tire, check the age code of the retread. OR If the grooves of the original tread do not exceed three-quarters of the width of the tread, each groove shown in the original tread design shall be at least 1.0 mm deep. The tyre shall have a minimum cutting depth of 1,0 mm on a continuous strip measuring at least three-quarters of the width of the tread and circumventing the entire outer circumference of the tyre. Tread section partially separated: risk of rubber detachment. The sections of the tread shall not be partially separated from the tyre. From tire pressure and tread depth to wheel alignment and grooves, we show you why truck tire safety is so important. A survey conducted by Goodyear and the Vehicle Inspection Service (VIS) of the Freight Transport Association (FTA) found that while 92% of drivers checked their tires before each new trip, the majority of them were unable to determine the legal tread depth of 1mm. Most car tires have tread wear indicators, usually at least six small ribs above the bottom of the main tread grooves, and if the tread is the same with these ribs, the tire is at the legal limit and needs to be replaced.
