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中文简体Common automobile maintenance tools and use
Commonly used tools are: hand-held hammer, mainly composed of hammer head and handle. The hammer weight is 0.25kg, 00.5kg, 0.75kg, 1kg, etc. The hammer weight is 0.25kg, 00kg, 75kg, 1kg, etc.
2. The screwdriver, also known as screwdriver, can be divided into two types according to its function and cross screwdriver, and can be divided into screwdriver, wooden handle screwdriver, threading screwdriver, insulating screwdriver and eccentric screwdriver according to its material and shape.
A screwdriver is a tool used to tighten or loosen slotted screws. The specifications of the screwdriver (rod length) are divided into dozens of 50mm, such as mm. When using the screwdriver, it is required that the blade end of the screwdriver is flat, consistent with the width of the screw groove, and there is no oil stain on the screwdriver. Make the screwdriver mouth completely consistent with the screw groove. After the center line of the driver is concentric with the center line of the screw, tighten or loosen the screw. Tip: Now many elevators have magnetism at the top. Nickname of needle nose pliers: repair pliers, needle nose pliers, needle nose pliers. The utility model is composed of a sharp head, a knife edge and a clamp handle.
3. The handle of pointed nose pliers is sheathed with insulating sleeve of rated voltage. It is a commonly used clamp tool.
It is mainly used for cutting single strand and multi strand wires with thin wire diameter, bending single strand conductor joints, stripping plastic insulation layer, etc. It can be operated in a small working space. It can only clamp work without a blade, and the blade can cut small parts. Be careful not to point the blade at yourself to avoid injury.
4. Perch pliers are used to clamp flat or cylindrical parts, and the metal can be cut with a blade. When using, wipe the oil stain on the pliers to avoid slipping during operation. Bending or twisting after clamping parts; When clamping large parts, enlarge the jaw. Do not tighten with pliers
Bolts or nuts.
5. Snap ring pliers are mainly used for the assembly and disassembly of internal and external elastic snap rings, which are very common in the maintenance of automobile internal parts.
Precautions:
(1) Stabilize with force to prevent falling off or breaking.
(2) Wear gloves to prevent injury after the snap ring is broken.
(3) Wear goggles as well.
6. Open end wrench
Open end wrench is the most basic open end wrench with fixed size, also called fork wrench. Since the opening of this wrench is fixed, bolts and nuts of different sizes and specifications need to correspond to the wrench one by one. The size of the opening is usually marked on the wrench. The distance between hexagon or quadrangle nuts is the model of the wrench opening. Although open-end wrenches are fixed and targeted, they are stable and durable in structure, and are much more convenient to use than adjustable wrenches. Box spanner is suitable for folding bolts or nuts within the range of 5~27mm. There are 6 and 8 box wrenches in each set. The two ends of the box wrench are like a socket, with two hexagon 12 corners, which can cover the head of the bolt or nut, and is not easy to slide when working. Box spanners are especially suitable for some bolts and nuts subject to the surrounding conditions.
Precautions:
(1) Do not use a box spanner with damage or cracks, or you will be injured.
(2) Hexagon box wrench is more antiskid than 12 sided box wrench.
(3) The box spanner shall be selected according to the size of the bolt or nut.
(4) Tighten the bolts or nuts, otherwise the bolts or nuts will be damaged.
(5) Do not put a pipe on the wrench to increase the length of the wrench, which may damage the wrench or the bolt and nut.
7. Socket wrench is applicable to some bolts and nuts that cannot work with ordinary wrench due to limited position. When folding bolts or nuts, different sleeves and handles can be selected as required. Similarly, these tools also have 27 sets of Taoshida
8 Special wrenches: or ratchet wrenches, quick flight wrenches, etc., should be used together with socket wrenches. It is generally used to tighten or disassemble narrow bolts or nuts, and can be folded or assembled without changing the wrench angle.
9. Pointer torque wrench: used to tighten bolts or nuts with sockets. Torque wrench is indispensable in automobile maintenance, such as cylinder head bolt and crankshaft bearing bolt. The torque of the torque wrench used in automobile maintenance is Newton meters.
10. The preset torque wrench has a preset torque value and sound device. When using, first set the upper limit of the required torque value. When the applied torque reaches the set value, the wrench will make a rattling sound or bend a little at the connection of the wrench, accompanied by obvious hand vibration, which means that no additional force should be applied after tightening, indicating that the work is completed. After the work capacity is released, the relevant parts of the wrench can be reset automatically. I hope it can help you and I hope to adopt it.
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