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Three major wear factors and maintenance methods for truck mounted tires

Update Date: 2015/12/30 comes from: jyrcpr.cn Author: clicks:


As more and more owners turn their trucks into "freak trucks", safety risks are also increasing. Some of the irregular ways lead to a decline in the service life of the tires, thus affecting the lifespan of the lorry. Tires are the "four feet" on which the car is based on the ground. Normally, a good driving method can protect the tire from wear and tear, prolong the service life of the tire, and improve the driving safety at the same time. The following are ways to protect tires, which may be useful for you:

Air pressure factor

Low air pressure causes tire side deformation to intensify, heat generation increase, tire life greatly reduced, and can cause many problems and safety hazards. For example, when the tire strength is reduced and the impact of external force is reduced, it is easy to cause damage and fracture of carcass cord. For example, when tire is heated at high speed, it will cause damage to the side tire and tire burst. In addition, low air pressure will also lead to increased rolling resistance and higher fuel consumption.

When the air pressure is too high, the grounding area of the tread will be reduced, the stiffness of the carcass will increase, and the cushioning property will be reduced, which will cause excessive wear of the central position of the tread and increase the possibility of rupture or even tire burst when the tyre is subjected to external force impact. And the reduction of grounding area will lead to a decline in handling and prone to tail skating and other dangerous situations. Naturally, riding comfort will also drop. Long term air pressure is too easy to cause damage to vehicle chassis.

Emergency braking factors

First, do not start too fast, so as not to accelerate the tread wear due to the drag of the tire and the ground.

The two is the downhill of the vehicle. The appropriate speed should be controlled according to the size, length and road condition of the slope, so that emergency braking can be avoided or less, and tire wear can be reduced.

Three, vehicle turning should be slow down according to the curve road condition and turning radius, so as not to accelerate the tire wear due to inertial force and centrifugal force.

The four is in the uneven road soil driving, we should try to choose flat pavement, reduce the tire and road bump, avoid the damage of machine parts and tires.

Five, during the turning, meeting, overtaking, crossing, narrow road, railway crossing and other areas, we should master the appropriate speed and pay attention to the road, pedestrians, vehicle dynamics, brake preparation, reduce frequent braking, avoid emergency braking, thereby reducing tire wear;

Six is in the highway maintenance construction area driving, the application of low speed and slow way to pass, to avoid tire overshot or even stabbed or scratched;

The seven is through the muddy area, should choose a solid, non slippery place to pass, so as not to tire subsidence, in situ idle, severe heat caused tire and sidewall serious cuts and scratches.

The eight is to park vehicles, choose flat, clean, oil free ground parking, to avoid stones against tyres or tires to contact oil pollution.

Centrifugal force factor of piston connecting rod

??? The resultant force of reciprocating motion of piston connecting rod group and the centrifugal force of the rotary movement of the connecting rod at large ends act as the resultant force acting on the inner side of the connecting rod journal of the truck crane, and the direction is always outward along the crank radius, so that the connecting rod head is always pressed on the inner side of the connecting rod journal, thereby causing the largest wear on the inner side of the connecting rod journal, causing oval shape, removing the front fender lining plate, and loosening the driving belt tensioner lock. Tighten the nut, then adjust the tension of the driving belt by adjusting the bolt with the rotary driving belt tensioner, remove the driving belt, pull the idler wheel in the loose direction, and temporarily tighten the locking nut.

??? Install the driving belt on each wheel, adjust the tension of the driving belt by adjusting the landing bolt, adjust the tightening nut of the driving belt, confirm that the tension of each driving belt is within the standard range, rotate the crankshaft timing pulley clockwise, rotate the crankshaft to the compression stop point, fix the crankshaft timing pulley with the timing belt fixing tool, loosen and take out the crankshaft timing belt bolt, and The timing wheel pulley is installed in the threaded hole of the crankshaft timing belt pulley, and then the crankshaft timing pulley is removed. If it is found that the parts are damaged, it must be repaired or replaced.

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