Specifies the maximum allowable size
Accordingly, the draft stipulates that when connected to a trailer, the length of a trailer (a car pulling a trailer), a semi-trailer (a tractor pulling a semi-trailer) must not exceed 20m; the width must not exceed 2.5m; the height must not exceed 4.0m.
The draft Circular stipulates that when connected to a trailer, the length of a trailer or semi-trailer must not exceed 20m (illustrative photo).
Meanwhile, the ground clearance is not less than 120mm (except for special vehicles).
Regarding the cargo compartment regulations, the draft requires a solid structure to ensure the safety of the transported goods. There must not be structures to install parts or assemblies that lead to an increase in cargo volume.
For vehicles with cargo bed locking devices higher than 1,950 mm above the parking surface, the vehicle must have suitable mechanisms to ensure easy opening and locking of the cargo bed.
The draft also stipulates that the passenger compartment, passenger seats, seat belts, luggage compartment, doors, emergency exits, safety glass on the vehicle and other equipment on the vehicle must satisfy the same requirements as for regular cars when converted.
In addition, the draft also stipulates that semi-trailers must be equipped with a stand to support the front of the vehicle when it is separated from the tractor. The stand must be able to withstand the load applied to it when the vehicle is fully loaded; there must be a drive control mechanism.
In the fully loaded state, when the side stand is raised to the highest position and the floor of the semi-trailer is horizontal, the distance between the lowest point of the side stand and the parking surface must not be less than 400 mm. In the case where the total mass distributed on each axle is greater than 6 tons, this distance must not be less than 320 mm.
The locking latches and locking pins on trailers and modified semi-trailers must not be opened by themselves (illustrative photo)
The latch and locking pin cannot be opened by themselves.
Regarding the regulations on connecting and pulling devices and steering mechanisms, the draft stipulates that connecting and pulling devices must be securely installed and ensure sufficient durability during operation. The locking latch and locking pin must not open by themselves.
In addition, trailers with two or more axles must have a fork ring retention mechanism to facilitate attachment and disengagement of the trailer from the towing vehicle. The fork ring end must not contact the road surface when the trailer is disengaged from the towing vehicle.
At the same time, there must be a steering mechanism. For turntable type steering mechanism, the turntable assembly and the steering carriage must be able to rotate in both directions at an angle of not less than 600.
The towing pin of the semi-trailer must have dimensions and assembly tolerances in accordance with current regulations.
According to experts, detailed and clear regulations on technical safety requirements for modified trailers and semi-trailers are the basis for units designing and modifying automobiles to conveniently apply them during the construction and modification process, helping to improve vehicle quality and ensure traffic safety.
Meanwhile, the axle must have a solid structure and be designed to ensure sufficient durability under normal operating conditions.
For wheel regulations, it is required to have a solid structure and be properly installed. Tires on the same axle of a vehicle used under normal operating conditions must be of the same type. Tires must be of sufficient quantity, pressure, and tire specifications (tire size, speed class or velocity, load index or load capacity of the tire) must be consistent with the vehicle's technical documents and design.
Tires used for each type of vehicle must meet the requirements specified in QCVN 34:2011/BGTVT "National technical regulations on pneumatic tires for automobiles".
In addition, the vehicle must have wheel covers if the vehicle's parts do not ensure this function (except for specialized trailers and semi-trailers).
The cover must ensure that soil, rocks and other objects from the road surface do not splash directly onto the vehicle body during operation;
For vehicles with a spare wheel, the lifting mechanism must not be located on the left side of the vehicle's forward direction.
Source: https://www.baogiaothong.vn/cai-tao-ro-moc-va-so-mi-ro-moc-can-dap-ung-yeu-cau-ky-thuat-nao-192231123171021024.htm
Comment (0)