As one of the biggest automotive tools & hand tools manufacturers and exporters in China ,Auto Tools Depot tell you that the special tools commonly used in auto repair are Spark plug sockets,Piston Ring Plier, Valve Stem Seal Plier, grease guns, jacks, etc. Let's introduce it in detail:
The Spark plug socket is used to disassemble the engine spark plug.
The size of the opposite side of the socket hexagon is 22 ~ 26 mm, which is used to fold the spark plugs of 14 mm and 18 mm; the size of the opposite side of the socket hexagon is 17 mm, which is used to fold the 10 mm spark plug.
Piston ring loading and unloading tongs are used for loading and unloading the piston rings of the engine to prevent the piston rings from being disassembled due to uneven force.
When in use, hold the piston ring tongs to the piston ring opening, gently grip the handle, and slowly shrink, the piston ring will slowly open, and the piston ring will be inserted into or removed from the piston ring groove.
Valve spring unloading tongs are used to load and unload valve springs.
When in use, shrink the jaws to the minimum position, insert under the valve spring seat, and then rotate the handle. Press the left palm firmly forward to make the jaw close to the spring seat. After the valve lock (pin) is installed and removed, turn the valve spring loading and unloading handle in the opposite direction to remove the loading and unloading pliers.
The grease gun is used for filling grease at each lubrication point. It consists of grease nipples, oil pressure valves, plungers, oil inlets, rod heads, levers, springs, piston rods, etc.
When using a grease gun, put small lump of grease into the oil reservoir to remove air. After decorating, tighten the end caps and use. When filling the grease nipple, the grease nipple should be straight and not skewed. If oil does not enter, stop filling and check if the oil nozzle is blocked.
5.Jacks
Jacks have screw jacks, hydraulic jacks and hydraulic lifters
Hydraulic jacks are commonly used in automobiles. The lifting force of the jack is 3 tons, 5 tons, 8 tons, etc. Hydraulic jacks are used to lift cars and other heavy objects. Its structure is composed of a top block, a screw rod, an oil storage cylinder, an oil cylinder, a rocking handle, an oil pressure plunger, a plunger barrel, an oil inlet and outlet valve, an oil valve, a screw plug and a housing. Before using the jack, use triangular wood to pad the car; when using it on soft roads, add a pad under the jack; when lifting, the jack should be perpendicular to the heavy object; before the jack is not supported and when it is dropped, it is forbidden Working under the car. When using a jack, first tighten the switch, place the jack, align the top, press the handle, and lift the heavy object. When the jack is dropped, slowly turn the switch off, and the weight will gradually drop.
The above are the special tools commonly used in car repair. Hope these materials can help you!