First, the universal tool
Common tools include hand hammers, screwdrivers, pliers, wrenches, etc.
320 mm. ~350
(1) Hand hammer hammer, consisting of a hammer head and a handle. The weight of the hammer head is 0.25 kg, 0.5 kg, 0.75 kg, 1 kg, and the like. The shape of the hammer head has a round head and a square head. The handle is made of hard wood, and the length is generally
(2) A screwdriver (also known as a screwdriver) is a tool used to tighten or loosen a slotted screw. The screwdriver is divided into a wooden handle, a heart screwdriver, a gripper, a cross screwdriver and an eccentric screwdriver. The specifications of the screwdriver (header) are divided into 50 mm, 65 mm, 75 mm, 100 mm, 125 mm, 150 mm, 200 mm, 250 mm, 300 mm and 350 mm. When using a screwdriver, it is required that the edge of the screwdriver should be flush and consistent with the width of the screw groove, and the screwdriver is free of oil. After the screwdriver is completely aligned with the screw slot, and the centerline of the screwdriver is concentric with the center line of the screw, turn the screwdriver to tighten or loosen the screw.
(3) There are many types of pliers, and there are two kinds of lithium fish pliers and needle-nosed pliers for automobile repair. 1, squid pliers: hold flat or cylindrical parts by hand, with a cutting edge to cut the metal. When using, wipe off the oil on the pliers to avoid slipping during work. After clamping the part, bend or twist it; when clamping the large part, enlarge the jaw. Do not twist the bolt or nut with pliers. 2, needle nose pliers: used to hold parts in small places.
(4) The wrench is used to fold the bolts and nuts with angular edges. Commonly used in automobile repair are open end wrenches, plum wrenches, socket wrenches, adjustable wrenches, torque wrenches, pipe wrenches and special wrenches.
1. Open-end wrench: There are 6 pieces and 8 pieces in the range of opening width 6~24 mm. Suitable for bolts and nuts of general standard specifications.
2, Torx wrench: suitable for folding bolts or nuts in the range of 5~27 mm. Each set of Torx wrenches is available in 6 pieces and 8 pieces. The end of the plum wrench is sleeve-like and has 12 corners. It can cover the head of the bolt or nut and it is not easy to slip off during work. Some bolts and nuts are limited by the surrounding conditions, and the plum blossoms are especially suitable.
3, socket wrench: each set has 13, 17 pieces, 24 pieces of three. Applicable to the folding of some bolts and nuts due to the position, the ordinary wrench can not work. When fitting bolts or nuts, different sleeves and handles can be used as needed.
4, adjustable wrench: the opening of this wrench can be freely adjusted, suitable for irregular bolts or nuts. When using, adjust the jaws to the same width as the opposite side of the bolt or nut, and make it close to allow the wrench to move the jaws to withstand the thrust and the fixed jaws to withstand the tension. The length of the wrench is 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 375 mm, 450 mm, 600 mm.
5, torque wrench: used to tighten the bolt or nut with the sleeve. Torque wrenches are indispensable in auto repair. For example, cylinder wrench bolts, crankshaft bearing bolts, etc. must be tightened with a torque wrench. The torque wrench used in automobile repair has a torque of 2881 Nm.
6, special wrench: or ratchet wrench, should be used with a socket wrench. Generally used for bolts or nuts to be tightened or disassembled in a narrow place, it can be folded or assembled with bolts or nuts without changing the Angle of the wrench.
Second, special tools
Special tools commonly used in automobile repair include spark plug sleeves, piston ring loading and unloading pliers, valve spring loading and unloading pliers, grease guns, and jacking items.
(1) Spark plug sleeve The spark plug sleeve is used to disassemble the engine spark plug. The inner hexagon of the sleeve is 22~26mm, which is used to fold the 14mm and 18mm spark plugs; the inner hexagon of the sleeve is 17mm, which is used to fold the 10mm spark plug.
(2) Piston ring loading and unloading pliers Piston ring loading and unloading pliers are used to load and unload the engine piston ring to prevent the piston ring from being unevenly broken and broken. When in use, the piston ring loading and unloading pliers are caught in the piston ring opening, the handle is lightly shrunk, the piston ring is slowly opened, and the piston ring is slowly opened to insert or remove the piston ring into the piston ring groove.
(3) Valve spring loading and unloading caliper The valve spring detaching tong is used to load and unload the valve spring. When in use, retract the jaws to the minimum position, insert under the valve spring seat, and rotate the handle. Press the left palm forward to make the jaws close to the spring seat. After loading and unloading the valve lock (pin), turn the valve spring loading and unloading handle in the opposite direction to remove the loading and unloading pliers.
(4) Grease gun The grease gun is used to fill grease at each lubrication point, and is composed of a grease nipple, a pressure oil valve, a plunger, an oil inlet hole, a club head, a lever, a spring, a piston rod and the like. When using a grease gun, put a small mass of grease into the oil reservoir to remove air. After decorating, tighten the end caps to use. When filling grease on the grease nipple, the grease nipple should be handled without being skewed. If oil is not in use, stop filling and check if the nozzle is clogged.
(5) Jack jacks have screw jacks, hydraulic jacks and hydraulic lifts. Common hydraulic jacks for cars. The lifting force of the jack is 3 tons, 5 tons, 8 tons and so on. Hydraulic jacks are used to lift cars and other heavy objects. The structure is composed of a top block, a screw rod, a oil storage cylinder, a cylinder, a rocking handle, a pressure oil plunger, a plunger barrel, an inlet and outlet oil valve, an oil valve, a screw plug and a casing. Before using the jack, use a triangular wooden mat to support the car; when using it on a soft road, it should be padded under the jack; when lifting, the jack should be vertically aligned with the heavy object; when the jack is not supported before and when it falls back, it is forbidden Work under the car. When using the jack, first tighten the switch, put the jack, put it on the top position, press the handle, and push the heavy object up. When the jack is dropped, the switch is slowly unscrewed and the weight gradually descends.
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Tags: car repair tools Daquan
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