What do you know about car maintenance tools? Talking about the commonly used vehicle maintenance to

First, general tools

    General tools are hand hammer, screwdriver, pliers, wrenches and so on.

    (A) hand hammer hammer, composed of hammer and handle. Hammer weight of 0.25 kg, 0.5 kg, 0.75 kg, 1 kg and so on. Hammer shape with round head and square head. Hand made with hardwood, long generally 320-350 mm.

    (2) screwdriver (also known as screwdriver), is used to tighten or loosen the tool with slotted screws. Screwdriver, screwdriver, screwdriver, screwdriver, screwdriver, screwdriver. Screwdriver specifications (pole length) points: 50 mm, 65 mm, 75 mm, 100 mm, 125 mm, 150 mm, 200 mm, 250 mm, 300 mm and 350 mm. When using the screwdriver, the screwdriver should be flush with the width of the screw groove, and the screwdriver on the screwdriver. Let the mouth of the screw and the screw groove fully coincide, screwdriver centerline and screw center line concentric, twist the screwdriver, you can screw tightening or loose.

    (Three) pliers pliers a lot of types of car repair commonly used lithium fish pliers and needle nose pliers two. 1, carp pliers: hand holding a flat or cylindrical parts, with the edge of the metal can be cut off. When used, wipe the grease on the pliers to avoid slipping during work. After clamping the parts, then bend or twist; hold large parts, the jaws to enlarge. Do not twist the bolts or nuts with pliers. 2, needle nose pliers: used to hold parts in a small place.

    (4) Wrenches are used to fold angular bolts and nuts. Car repair commonly used open wrench, plum wrench, socket wrench, active wrench, torque wrench, pipe wrench and special wrench.

    1, open wrench: opening width of 6 to 24 mm range of 6, 8 two. Applicable to the general standard specifications of the bolts and nuts.

    2, the flower wrench: for folding 5 to 27 mm range of bolts or nuts. Each set of wrenches has 6 pieces and 8 pieces. Plum wrenches at both ends of the sleeve, there are 12 horns, can bolt or nut head cover, work is not easy to slip off. Some bolts and nuts are limited by the surrounding conditions, especially for plum blossoms.

    3, socket wrench: each set of 13, 17, 24 three. Suitable for folding some of the bolts and nuts due to limited position, ordinary wrench can not work place. When folding bolts or nuts, use different sleeves and handles as needed.

    4, active wrench: This wrench opening can be freely adjusted for irregular bolts or nuts. When used, adjust the jaws to the same distance as the bolts or nuts, and keep them tight, so that the wrenches can move the jaws and hold the jaws. Wrench length of 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 375 mm, 450 mm, 600 mm.

    5, torque wrench: to match the sleeve tightening bolts or nuts. In the car repair torque wrench is indispensable, such as cylinder head bolts, crankshaft bearing bolts and other fastening are required to use torque wrench. The torque wrench used in the car repair is 2881 Nm. 6, special wrench: or ratchet wrench, should be used with the socket wrench. Generally used for bolts or nuts in a narrow place to tighten or disassemble, it can change the wrench angle can be removed or fitted with bolts or nuts.

    Second, special tools

    Car repair commonly used special tools are spark plug sleeve, piston ring loading and unloading pliers, valve spring loading and unloading pliers, grease guns, pounds and so on.

    (A) spark plug sleeve spark plug sleeve for the disassembly of the engine spark plug. Sleeve with hexagonal side dimensions of 22 to 26 mm for use in folding 14 mm and 18 mm spark plugs; hexagon with hexagonal edges of 17 mm for 10 mm spark plugs.

    (B) of the piston ring loading and unloading clamp piston ring loading and unloading clamp for loading and unloading engine piston ring, to avoid the piston ring uneven force and disassembly. When used, the piston ring loading and unloading clamp to catch the piston ring opening, light grip, slowly shrink, the piston ring slowly open, the piston ring into or out of the piston ring groove.

    (C) valve spring loading and unloading forceps spring spring clamp for loading and unloading valve spring. When used, shrink the jaws to the minimum position, insert the valve spring seat, and then turn the handle. Left palm straight forward, so that the jaws close the spring seat, loading and unloading the valve lock (pin), the opposite direction of the valve spring spring handle, remove the loading and unloading clamp.

    (4) grease gun grease gun for the lubrication point of filling grease, from the nozzle, pressure valve, plunger, into the oil hole, club head, lever, spring, piston rod and other components. When using a grease gun, install the grease into the tub and remove the air. After decorating, tighten the end cap to use. When grease is added to the grease nipple, the nipple should not be skewed. If you do not enter the oil, should stop the oiling, check the nozzle is blocked.

    (5) jack jack has screw jack, hydraulic jack and hydraulic lift. Common hydraulic jacks. Jack lift force of 3 tons, 5 tons, 8 tons and so on. Hydraulic jacks for lifting cars and other heavy objects. Its structure consists of the top block, screw rod, storage cylinder, cylinder, rocking handle, pressure plunger, plunger cylinder, inlet and outlet valve, oil valve, plug and shell and so on. The use of jacks before the use of triangular wooden mats good car; in the use of soft pavement should be in the jack under the bottom of the wood; lift, the jack should be perpendicular to the weight of the positive; Work in the car. When using jacks, first tighten the switch, put the jack, is the top position, press the handle, it will weight up. When the jack down, the switch slowly open, the weight gradually decreased.