As the automobile industry continues to develop, private car owners are becoming increasingly aware of vehicle maintenance. However, many newcomers often felt unable to do so in the face of lin’s full-fledged maintenance tools. The normative use of basic tools not only improves maintenance efficiency, but also is a central prerequisite for ensuring operational safety and avoiding damage to vehicles。
Manual tool
Manual tools are the most basic and most commonly used part of a car repair operation. It is common to have an open wrench, a clubs wrench, a condom wrench, etc. For white, the first is to learn to choose a matching tool according to the specification of the bolt, and to strictly prohibit the use of the big one tool to force it, otherwise it is highly likely to lead to a spiral of the bolt. The principle of non-pushing shall always be followed in the operation, i. E. The force should be directed towards itself, so that, even if the tools slide, the body will tilt backwards and avoid the impact of the hand on sharp parts of the engine。
In dealing with bolts in narrow space, the thorn wrench is the best option. The one-way conveyor of the thorn wrench allows us to swing back and forth within the limited space to do the twisting or dismantling. It needs to be noted, however, that the turrets are sophisticated and cannot be used for the first waver release with severe rust. In case of severe rusty bolts, the “break force” should be performed using a long pole or a clubs wrench, which should be released before the thorn wrench is replaced to increase efficiency。
In addition, the specifications of the kit are divided into both public and english. Today, 2026, the vast majority of domestic cars are subject to public standards, but some old-age cars or imported cars still retain british specifications. White must make sure that, when selecting for purchase, mixing may lead to the loss of the prism of the nut. At the same time, hexagonal tubes are larger than the 12-angular tubes and are more difficult to slip when bearing a big twist and are the preferred option for home maintenance。
Power control
In the car repair industry, there's a famous negative textbook called "the big wonder." a lot of newcomers think that the tighter the screws, the safer it is, it's actually a fatal mistake. Each bolt is designed with its specific pre-heavy force, which over-heavy can cause the bolt stretching to deform and even break. Therefore, the wrench is a tool that must be configured for entry. When installing spark plugs, wheel bolts or engine panels, the standard rectangular values in the maintenance manual must be consulted。
When a twister is used, the force should be applied smoothly and stopped immediately when the sound or sense of a “single” is heard until the vibration feedback is received. It is strictly forbidden to continue to increase after reaching the intended twist, which would render precision ineffective. In addition, when the wrench is used, it must be zero. Because the wrench works internally on spring pressure, prolonged pressure can lead to permanent plastic transformation of the spring, thus seriously affecting the accuracy of the measurements and resulting in safety risks in subsequent maintenance work。
For multiple bolt-fixed components, such as rims or tatter covers, the tightening of the order is equally critical. A “cross-the-border” or “star” approach should be used for multiple cycles. The first one was pre-empted with a manual tool, the second with a twister to 50 per cent of the grader and the third with 100 per cent. This step-by-step approach ensures uniform stress and avoids the failure of parts or sealed gaskets due to excessive local pressure。
Raise security
If screw is about the lifetime of the vehicle, the lifting of the vehicle is directly related to the safety of life. The car's own clipped jacks, which are used only for emergency replacements, are extremely unstable and cannot be drilled under the vehicle without the support of the jacks. The correct approach is to accompany the use of the security stool. The jacks are responsible for raising the vehicle, while the safety support is responsible for bearing the weight of the vehicle during maintenance。
In the search for lift points, the vehicle instructions are always checked. The wrong lifting point may lead to the fragmentation of the side skirt plastics and even to the distortion of the chassis due to the lack of stress point strength. The lifting shall be preceded by operation on a flat and hard surface and by the tightening of the hand brakes and the placement of block blocks around unlifted wheels. Once the vehicle has been raised and placed on a shelf, the vehicle should be moved gently to confirm that the frame is secure and that it is the professional practice of each senior technician。
With the spread of new energy vehicles, large power battery packages are usually placed below the chassis. When lifting such vehicles, the edge of the battery tray shall be avoided. The new type of aircraft in 2026 usually has a clear orange mark or a special stress reinforcement. If it is not possible to locate white, it is preferable not to ascend or try blindly. Once the top battery bag is in place, the cost of maintenance will be astronomical and there are significant risks of electrochemical safety。
Circuit measurements
Modern automobiles are a combination of mechanical and electron, so a universal watch becomes a necessity for the improvement of the car. Intuitive data can be obtained from cells holding voltage, sensor signals or circuit break-ups. For newcomers, a distinction is made between direct current voltage (dcv) and communication voltage (acv). Motor circuits are mostly 12v or 24v currents, but in high voltage systems of new energy vehicles, voltage may be as high as 800v, and the measurement of orange wire beams is strictly forbidden by white。
When measuring currents, a life-cycle watch must be linked to the circuit, while the measurement of voltage is combined. A common error is the use of a one-size-fits-all meter current slot to measure the two-end voltage of the battery, which can lead to the instant burning of the one-in-one fuse. The core of the use of the universal scale is to develop a habit of checking the quantities before each measurement, which protects the tools from damage. At the same time, electrical resistance must be measured by cutting off the power source, otherwise sensor currents can disrupt readings or even damage instrumentation。
When checking whether the lines are well connected, the beeping bins of the watch are very useful. If both ends of the guide, the instrument will sound clear. It is important to note, however, that some circuits with faulty phenomena, although the beeper will sound, may have exceeded the barometer values. Gradient whites should be able to observe resistance values and generally good conductive connections should be close to zero. When values are found to be volatile, they often mean that there is oxidation or a loose foot within the plug。
Electric tools
With the rapid progress of lithium electricity technology, in 2026, the great twirling electric wrench and electric screwdrivers became widespread. Electric tools can significantly reduce labour intensity, but their power is difficult to control precisely. For beginners, a strategy of “electric hand-picking” is recommended. That is, when the bolts are removed, they are quickly removed using the force of the electric wrench, which is installed using the hand in a few circles to ensure that the thread is right and then slowly rotated with the electric tools。
When the electric shock wrench tightens the wheel bolt, remember that it cannot directly pass through the shock force. Even if the tool is labelled as a twister, the error is relatively large. The most sound operation is to pre-empt it with electric tools and then to calibrate it with a manual twister. In addition, lithium battery tools should be stored in such a way as to avoid high temperatures and extreme temperatures, and around 50 per cent of electricity should be maintained for long periods of time, in order to extend the life of the battery and ensure robust power when needed。
Personal protection
Finally, the efficiency of the use of tools is always subordinated to physical security. In auto repair operations, motor oils, anti-freeze fluids and brake oils are of a certain corrosivity, and long-term skin contact may cause allergies or dermatitis. Therefore, the wearing of the tritium gloves is the first step in basic protection. When cleaning the brake dust or cleaning the gas-saving door with a decontaminator, eye glasses must be worn to prevent chemical liquids from spilling into the eye. When the high-pressure gas gun clears a small gap, splattered pieces are equally lethal。
Metal accessories such as watches, rings and long hair and sleeves should be removed during the operation of the engine compartment. Metallic accessories produce short, high temperatures and even skin burns if they are accidentally touched by the battery and the body metal. It is equally important to keep the area of work clean, to clean up the oil stains on the ground and to prevent the fall or fall of tools to the toe caused by slips on the soles. Good occupational literacy and awareness of protection are the hallmarks of the advancement of white。
And those who want to do good deeds, they will surely be able to take advantage of their means. Capital repairs are not only a skill, but also an exploration of mechanical logic. By regulating the use of manual, twisting, lifting and measuring tools, you not only enjoy the sense of accomplishment that dey brings, but also have a profound understanding of the structure of car love in the context of security. It is recommended that you start with simple replacement of air cores, air-conditioning cores and gradually build hands on tools. What's the biggest difficulty you're having in trying to fix? Or do you want to know what practical skills of progressive tools? Welcome to the comment section. We'll share the progress。
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