With the continuing rise in vehicle holdings in 2026, tyre services have become the basic core business of the garage. For newcomers to the industry, the replacement of the baby is a fundamental function, but the details of it often determine the safety of motor vehicles and their professional reputations, and mastery of regularization is a necessary route to employment。
I. Preparation
Prior to any tyre operation, environmental safety is a primary consideration. Vehicles must park on flat and hard ground and are strictly prohibited from carrying out top-up operations on slopes or soft mud. Ensuring that vehicles have been braked and placed in the p slot and should be placed in the first slot for manual block vehicles is the most basic safeguard against vehicle ramps。
The inspection of tools should also not be overlooked. Before starting operations, please confirm whether the rated load of the jack matches the vehicle type, especially in the face of the increasing number of new energy vehicles, where the self-heaviness increase in the battery pack places higher requirements on lifting equipment. At the same time, the wrench, the aerodynamic wrench, the crowbar and the brush for cleaning. The integrity of the inspection tool is an expression of professional probity and can effectively avoid the embarrassment or danger that may result from the failure of the tool in the middle of construction。
In addition, for starters, the placement of a block is a highly negligible detail. The placement of a block at the wheel of the top-lift vehicle opposite the corner would greatly improve the stability of operations. In the 2026 standardized workshop, the standardized process has become an important indicator of the professionalism of auto mechanics, with every minor preparatory move being made for safety。
Ii. Dismantling pits
The first step in removing tyres is not a direct lifting. When the vehicle does not leave the ground, it should first use a drum wrench to pine the wheel bolt around half to one circle. This is due to the fact that tyres on the ground are supported by ground friction, which can easily remove the initial great strangulations and avoid swaying or even falling vehicles after lifting too hard. Remember not to start working hard to screw the bolts when the vehicle is completely suspended。
The search for the jacks is the first “big pit” of the newcomers. Each car's instructions are marked with a dedicated top position, usually at the end of the side skirt. If the position is wrong, light results in the disfigurement of the chassis plastics and heavy damage to the battery casing of the new energy vehicle. In the maintenance standard of 2026, damage to battery packs means almost high compensation, and it is therefore necessary to confirm repeatedly that the feed points are secure and correct before a jack is placed。
The principle of a diagonal line shall be observed when removing bolts. Rather than breaking it down in a clockwise or reverse-clockwise sequence, it is to cross-dismantling, so as to ensure that the respiration of the wheel is even and to prevent stress distortion between the wheel and the flange. When the bolts are removed, if the wheel rims cannot be removed because of the coding of the rust, they may be kicked lightly on the side of the tyre, and they shall not be struck directly on the surface of the wheel rims with a hammer in order to avoid permanent damage to the aluminum alloy rims。
Iii. Clearance inspection
When the tyres were removed, the work was not finished, and the real details were reflected in the treatment of the face of contact with the french plate and the rotor. Long journeys lead to rust or mud from these points of contact, and if new fetuses are not cleaned directly, small bumps can lead to disequilibrium installation, resulting in a visible swing during high-speed travel. The complete removal of rust from the surface of the palette using wire or sandpaper is key to resolving such post-sale problems。
At the same time, the edge of the wheel is examined. Check for cracks, deformations or severe oxidation. In particular, the position of the aerobic door, in the case of rubber, is recommended for simultaneous replacement when new tyres are replaced. Because of the ageing of rubber over time, many slow leakages are caused not by nailing of tires, but by cracks in the mouth. Such preventive maintenance can significantly increase client satisfaction。
In addition, the location of the sensor must be confirmed when dismantled for the mainstream 2026 vehicle with tpms. It is extremely easy to break tire machines if the rods and heads are not removed from the sensors during their operation. The cost of a sensor is often offset by the cost of several changes of tires, and new entrants must learn to identify sensor markings and protect the electronic equipment of the owner。
Details of installation
The installation of new tyres depends first on the direction of their installation. Modern tyres are mostly mono-or asymmetrical. Placing a side with a “outside” label on the inside would seriously affect the drainage performance and gripping power of tyres. Single-directed tyres are shown with arrows indicating a rolling direction, which in turn leads to an increase in foetal noise and an abnormal increase in fuel consumption, which is the red line item in the professional examination of carpentry。
Color spots on tyres are also important references for installation. Typically, red dots represent the highest vertical volatility of tyres, while yellow dots represent the lowest. At the time of installation, the yellow dot should be directed to the air-gate position. Since the gas door is the most heavy point on the wheel, the combination of the two can offset some weight, thereby reducing the use of weights when balancing and smoothing the wheel。
The inflating process is also sophisticated. The initial inflating proposal is slightly higher than the standard pressure, allowing the lip to be fully ejected and attached to the edge of the wheel (two soundings of “pom-pom-pom”) and then adjusts the pressure to the plant's recommended rated value based on the symbol of the tyre pressure in column b. Do not blindly pursue high fetal pressure, which reduces exposure, increases the risk of flat tires and accelerates wear and tear of suspension systems。
V. Twisting tight
A lot of rookies like to hit the bolt with the air wrench (wind cannon) to the end, thinking that if it hits, it's solid. This is a huge mistake. Overstretching can lead to bolt stretching or even fractures, or to the deformation of the rotor snail. The correct approach is to spin the bolts into the screws first by hand, to ensure that the threads are aligned, then to move the wrench with air, and finally to use the wrench for final hardening。
A review of the maintenance manual obtained a standard rectangular value for the vehicle, usually between 100 and 140 nm. The rigidity also follows the diagonal principle, which is completed in two stages: the first with a smaller twist, and the second with a standard twist. When the wrench strikes the sound of a “twilight”, the force is stopped immediately. Standardized twist construction is a watershed that distinguishes between wild road and professional technicians。
Once secured, it is recommended that the habit of re-censorship be developed. Once the jack is down and the vehicle is completely on the ground, the bolts are checked again in sequence. This rigid working attitude is not only responsible to the owner, but also protects his career. In the car repair industry, an accident caused by a bolt break was sufficient to destroy the career prospects of a technician。
Vi. Modified balance testing
The balancing of items involving the removal of tyres is mandatory. Unbalanced tyres can cause disequilibrium during high-speed rotations, resulting in severe shaking of the body and damage to the shock-shield and to the steering pole. In the operation of the balancing machine, the original balance blocks on the inside of the wheel rim and the remaining film should be removed, otherwise the accuracy of the test results would be compromised。
On the smart balance machine in 2026, the points of imbalance are usually accurately shown. When pasting the balance block, the position is to be accurate and the pressure is to be firm. If it is found that the weight of a block of balance required for a given group of wheels exceeds 60 g, consideration should be given to rematching the tyre with a 180-degree rotation on the wheelbar, since a large imbalance often means that the tyre or wheelbow itself has a quality deviation or is not installed。
At the end of the test, the screen display is " 00 " or " ok " for delivery. For some high-performance vehicles or trams, the requirements for moving balance are higher, and minor deviations are magnified in the quiet cockpit. The pursuit of an extremely dynamic balancing effect is a sign of the progress of the auto mechanics to the higher levels. Quality is the central element in retaining clients without simplifying the process in order to save those three or five minutes。
Submission for review
There are also several closings before vehicles are delivered to clients. The first is the system for monitoring the pressure of the flat tires. Most of the vehicles now monitor the tire pressure through a wheel-speed sensor or a direct sensor, replace the tire or adjust the air pressure. If the system is not reset, the dashboard will soon bomb alarms and cause unnecessary panic among clients. Proficiency in the operation of system menus of various car types is also an essential skill for the repair of jobs。
Second, the tyre side wall should be wiped clean by checking if there are any remaining emulsions left during its installation. Clean construction results give clients a professional impression. Finally, a short distance test is recommended to confirm that there is no abnormal noise or vibration at different speeds. The details determine success or failure, the profession comes from standards, internalizes these steps into muscle memory, and you can stand on your feet in a car repair field。
In conclusion, tyre replacement is not simply manual work, but a technical undertaking that is safe, sophisticated and process-oriented. From environmental choices to the hardening of the recoil, every link is related to human security. As a new force in 2026, we need not only to work, but also to understand standards and pits. What's the hardest bolt you've ever met in practice or work? Or what more details have been found that can easily be ignored when changing a baby? Welcome to the comment section to share your experience, and we'll share our progress
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