The configuration rate of air suspension in buses of more than 8 meters is close to 80 percent . Correct and standardized use of air suspension can reduce or avoid its failure and reduce maintenance costs.
After the suspension parts are correctly positioned on the axle, they should be tightened, and the errors should be controlled strictly according to the drawings and installation process.
When the axle with the suspension components installed is assembled with the frame, it should be ensured that the axle is positioned correctly, in line with the front axle positioning and wheelbase requirements of the OEM, and adjustment pads should be used to adjust when it is out of tolerance; in order to avoid mass assembly In case of frequent adjustment in the frame, the positional accuracy of the connection points of the suspension guide mechanism (such as the thrust rod support on the frame, the guide arm mounting hole) should be strictly controlled during the welding of the frame.
After the suspension assembly is inflated, the suspension height should be controlled within the design height A plus 5mm (usually, the installation height of the Air Spring assembly can also be measured instead).
All fasteners should be tightened to the specified torque. If more than two fasteners are in a group, they should be tightened according to the specified torque, and then check the tightening torque again.
When inflating and deflating, the height valve works normally, and there is no movement interference between the yaw rod and the vertical adjustment rod and the frame, and the airbag is inflated and exhausted normally.
When the Air Spring is fully exhausted, there should be proper clearance between the tire and the bottom surface of the vehicle and any other parts, and the same is true when the front wheel is turned to the extreme left and right positions.
The Air Spring should have 10-15mm clearance around it when fully loaded and fully inflated.
According to the experience of previous OEMs, vehicles with air suspensions should run on paved roads above grade 2; when running to roads with poor road conditions, they should slow down and pass.
The vehicle is not allowed to be overloaded, and the vehicle should be loaded strictly according to the limited load of the whole vehicle. Even if it is driving on good roads such as expressways and first-class roads, the overload should not be greater than 10 percent .
The air supply pressure of the air suspension system should be kept between 618bar.
Rubber parts (except polyurethane parts) in the air suspension system should be prohibited from using and contacting lubricating oil and grease.
Carry out daily inspection, maintenance and upkeep as required.
When the air pipeline leaks or the Rubber Air Spring is accidentally damaged and the Air Spring leaks, the buffer blocks in the Air Spring form a rubber pad support, and the vehicle should be driven at a low speed to the nearest service station for inspection.
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