Auto parts which to use grease? What should I pay attention to?

February 09, 2024

Auto parts which to use grease? What should I pay attention to?

Cars, like the human body, are complex. Depending on the shape and design of each car, there will be more than 30,000 to 35,000 different parts, so many to make you dazzling!

Grease is used in many parts of cars. Such as ball head, rearview mirror, cable, electrical switch, brake system, skylight motor, window lift motor, wiper motor, etc., as long as the car through the movement of the parts to use grease. So, the selection and use of auto parts grease is extremely important, what should we pay attention to?

1) Grease for chassis system

It is mainly the car cable, flexible shaft, clutch booster, brake booster, universal joint and other parts of the car chassis. Chassis grease features: excellent water resistance, extreme pressure and wear resistance, long life, high and low temperature resistance; Some automobile chassis need pumping grease to meet the needs of centralized grease supply, therefore, the vehicle chassis grease should be used according to the working environment and temperature of the lubrication part, choose different applicable greases.

2) Grease for power system

That is, the engine, including the automobile engine bearing, starting motor one-way gear, car starter gear 3 parts need to be used.

3) Grease for electrical systems

Such as automotive combination switch plastic parts, headlight regulator, seat regulator, electric external rearview mirror, combination switch contact, damper actuator, switch contact, wiper motor, EPS (electric power steering), ignition switch, glass regulator and glass regulator motor.

4) Grease for body and accessory system

Door limiter, car tire pump, central lock gear, control panel precision, car door lock frame and its mechanism all need to use grease.

5) Grease for car maintenance

Car, "seven points, three points repair", car battery pile head, door glass guide, high temperature/high load, low speed sliding/swinging parts lubrication, such as high temperature bushing, latch, bolt, shaft and joint or brake pad.

What do you need to pay attention to when using auto parts grease?

1. Suitable grease should be used according to the requirements of different lubrication parts

Under normal circumstances, there will be no big problems in accordance with the provisions of the car instruction manual.

2, different greases can not be mixed at will

Because of the different types, its composition and properties are also different, and it is likely to have adverse effects when mixed and affect normal lubrication. When changing to a different new grease, the parts must be cleaned and blow-dried by solvent oil before greasing, and then re-greased. Even the same kind of grease can not be mixed with old and new. Because the old grease contains a lot of organic acids and impurities, it will accelerate the oxidation of the new grease, so when changing the grease, it is necessary to clean the used grease before adding the new grease.

3. Strict attention should be paid to the cleaning of the filling container tools before receiving and filling

The mouth of the grease should be wiped clean first to prevent the mixing of mechanical impurities. When filling, pay attention to prevent dust, sand and so on from mixing.

4, the dosage should be appropriate

The lubrication of wheel bearings is the most important on the car, and the amount of grease is also the most. When the hub bearing grease is replaced, as long as the bearing ball (or roller) is filled with grease, and the hub cavity is "no-load lubrication", that is, the hub cavity only needs to be thinly coated with a layer of grease to prevent rust. This is easy to heat in order to reduce the working temperature of the grease, but also to save the amount of grease. Never fill the hub cavity with grease, which is wasteful and unscientific. Because in the case of frequent braking and too long braking time, it is likely to cause the wheel hub to overheat and make the grease flow to the surface of the brake friction plate, so that the brake failure affects the driving safety.

Often maintain the cleaning and lubrication of the various systems of the vehicle can achieve "maintenance on behalf of maintenance, maintenance to avoid repair", which not only saves a lot of maintenance costs, but also extends the service life of the vehicle, which is the significance of car maintenance.

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