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The purpose of a pre-heating device is to heat the engine in cold weather. They heat the glow plugs in the cylinders. The starter should only be operated when the indicator light goes out. On light vehicles, the most common coupling is an A-frame drawbar coupled to a 1 7/8 inch or 50mm tow ball. These drawbars transmit around 10% of the gross trailer weight through the coupling.
If you have been issued with protective clothing by your company for use while driving, it is your responsibility to wear it. Agricultural equipment is hauled by a tractor-mounted drawbar. Specialist agricultural tools such as ploughs are attached to specialist drawbars which have functions in addition to transmitting tractive force. This was partly made redundant with Ferguson's development of the three-point linkage in his famous TE20. The fifth wheel requires regular lubrication and inspection. This should be carried out either monthly or every 10,000 km whichever comes first. The oil filter collects sediment from the oil. This sediment comprises tiny metal fragments from the engine. The oil filter will usually be replaced at service intervals and this reduces friction. Fuel Options for 1-2 working day delivery and next day timed services available on most items Zone B Surcharge AreasLorry and bus tyres have codes on the tyre side walls which indicate the maximum load and the speed capability. Increased risks of punctures It is also a requirement for the manufacturer’s date code to be legible on all tyres fitted to LGV tractor units and trailers over 3.5 tonnes. The fifth wheel coupling is used to connect a tractor unit to a trailer. It allows articulation between the tractor and trailer.
Drawbar trailers have a specific method to couple them with the towing vehicle (this could be a rigid lorry or a prime mover/tractor unit that has the correct coupling). The drawbar towing eye fits inside the jaws of the coupling unit and a pin drops through the eye. If you notice your headlights not working, even if it’s daytime, get them fixed before setting off. Vehicle operators must have an effective system in place for drivers to report vehicle defects and have them repaired properly. Consistent high speeds for long distances on motorways can cause your tyres to overheat and disintegrate. This is more likely to be the case if they are under-inflated because this creates more rolling resistance that is dissipated in the form of heat.Aggressive reversing can break or bend the funnel which directs the towing eye into the jaw. In this case, the drawbar height was too low and the approach speed too fast. The funnel couldn’t direct the drawbar into the jaw, instead breaking through the funnel. Workshop manuals are available for advice about the maintenance and repair of your vehicle. These are essential for anyone who intends to service or repair their own vehicle. Older vehicles require double-declutching to change gear. On new vehicles with synchromesh gearboxes, double-declutching increases clutch wear and wastes fuel. Protective clothing Smoke coming from your tyres is not normal in every day driving and you should stop immediately if you see this as it could be rubbing on part of the bodywork which will eventually cause it to overheat or will rub through and cause a blowout. Changing a wheel or tyre
Energy-saving tyres keep fuel costs down because they have a lower rolling resistance and better grip than ordinary tyres. You should consider this when replacing your tyres. Overfilling your engine with oil could cause a loss of power. This is because moving engine parts could hit the oil. This can even damage the engine. Overfilling with oil can also cause excess pressure which can damage oil seals and cause leaks. If you see this warning light then you have a problem with your oil pressure. Continuing to drive with this light on could cause your engine to seize. If there’s not enough oil pressure the engine components won’t be lubricated. They will overheat and eventually will seize. The drawbar should not be confused with the fifth wheel coupling. The drawbar requires a trailer which either loads the drawbar lightly (for example a small boat trailer, or caravan, or the load is the weight of the coupling components only (larger trailers, usually but not always with a steerable hauled axle, front or rear). By contrast, the fifth wheel is designed to transmit a proportion of the load's weight to the hauling vehicle. Drawbar configuration is mostly seen on hydraulic modular trailer and ballast tractor combination to haul oversize loads which require special trailer and tractor.
Coupling and uncoupling a trailer
The first thing to do before uncoupling a trailer is to apply the parking brake. After leaving the cab, apply the trailer parking brake. Always park on a firm, level surface. When you start the engine the ignition light should go out. If it doesn’t, you have an electrical fault. If you are driving a vehicle fitted with a turbocharger these can heat up to 600 degrees Celsius. When you stop, allow your engine to idle a short time (around a minute) to help the turbo cool. Some vehicles will have a turbo timer fitted to allow this to happen without you waiting with the vehicle. Oil
If you notice a lump or bulge, a deep cut more than 25mm (1 inch) long, or exposed ply or cords, then the tyre is illegal to use on the road. You can see in this following video how much force a tyre on a heavy vehicle can explode with in a blowout. Damage can be caused by clumsy or aggressive coupling techniques, manoeuvring outside of the range of the coupling, and poor maintenance and care of the parts. Cables and air lines If you are driving along and notice that tread is coming away from one of your tyres (i.e. your tyre is delaminating), you must stop and change it. Different sized wheels
A high-pressure fuel injector delivers fuel into the cylinders. Most diesel engines use a high-pressure fuel injector system which will deliver pressurised fuel directly into the cylinders of the engine. This system is known as a direct injection engine. Diesel expands in the heat. If your fuel tank is filled to the brim and it’s a hot day, expansion of the fuel will cause it to spill on the road which is very dangerous, especially for motorcyclists. Don’t fill your fuel tank to the brim. If you detect a leak in your air braking system, leave the vehicle parked and find someone to fix it. Don’t drive it until it’s fixed otherwise you could end up with no brakes. Gearbox Reversing too fast into the jaws can squash the towing eye meaning the pin won’t drop through. Reverse slowly until the trailer is coupled. vc_column_text][/vc_column][/vc_row][ms-protect-content id=”1895,1478″][vc_row][vc_column width=”1/2″][vc_single_image image=”76108″ img_size=”medium”][/vc_column][vc_column width=”1/2″][vc_column_text] OVERVIEW
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