Renewable Design for Chery Envy Gearbox - TOOL for CHERY TIGGO T11 – Qingzhi

1 A11-3900105 DRIVER SET
2 B11-3900030 ROCKER HANDLE ASSY
3 A11-3900107 OPEN AND WRENCH
4 T11-3900020 JACK
5 T11-3900103 WRENCH,WHEEL
6 A11-8208030 WARNNING PLATE – QUARTER
7 A11-3900109 BAND – RUBBER
8 A11-3900211 SPANNER ASSY

Automobile repair tools are the necessary material conditions for automobile maintenance. Its function is to complete various operations that are inconvenient for automobile repair machinery. In the repair work, whether the use of tools is correct or not is of great significance to improve work efficiency and vehicle repair quality. Therefore, the repair personnel must be familiar with the maintenance knowledge of common tools and tools for automobile repair.

1、 General tools

General tools include hand hammer, screwdriver, pliers, wrench, etc.

（1） Hand hammer

A hand hammer is composed of a hammer head and a handle. The hammer head weighs 0.25kg, 0.5kg, 0.75kg, 1kg, etc. The hammer head has round head and square head. The handle is made of hard miscellaneous wood and is generally 320 ~ 350 mm long.

（2） Screwdriver

Screwdriver (also known as screwdriver) is a tool used to tighten or loosen slotted screws.

The screwdriver is divided into wood handle screwdriver, through center screwdriver, clamp handle screwdriver, cross screwdriver and eccentric screwdriver.

The specifications of the screwdriver (rod length) are divided into: 50mm, 65mm, 75mm, 100mm, 125mm, 150mm, 200mm, 250mm, 300mm and 350mm.

When using the screwdriver, the edge end of the screwdriver shall be flush and consistent with the width of the screw groove, and there shall be no oil stain on the screwdriver. Make the opening of the screwdriver completely coincide with the screw groove. After the center line of the screwdriver is concentric with the center line of the screw, turn the screwdriver to tighten or loosen the screw.

（3） Pliers

There are many kinds of pliers. Lithium fish pliers and pointed nose pliers are commonly used in automobile repair.

1. Carp pliers: hold flat or cylindrical parts by hand, and those with cutting edge can cut metal.

When in use, wipe the oil on the pliers to avoid slipping during operation. After clamping the parts, bend or twist them; When clamping large parts, enlarge the jaw. Do not turn bolts or nuts with pliers.

2. Pointed nose pliers: used to clamp parts in narrow places.

（4） Spanner

Used to fold bolts and nuts with edges and corners. Open end wrenches, ring wrenches, socket wrenches, adjustable wrenches, torque wrenches, pipe wrenches and special wrenches are commonly used in automobile repair.

1. Open end wrench: there are 6 pieces and 8 pieces within the range of opening width of 6 ~ 24mm. It is suitable for folding bolts and nuts of general standard specifications.

2. Ring wrench: it is suitable for folding bolts or nuts in the range of 5 ~ 27mm. Each set of ring wrenches is available in 6 pieces and 8 pieces.

The two ends of the box wrench are like sockets with 12 corners. It can cover the head of the bolt or nut and is not easy to slip off during operation. Some bolts and nuts are limited by the surrounding conditions, and the plum blossom wrench is particularly suitable.

3. Socket wrench: each set has 13 pieces, 17 pieces and 24 pieces. It is suitable for folding and installing some bolts and nuts where the ordinary wrench cannot work due to the limited position. When folding bolts or nuts, different sleeves and handles can be selected according to needs.

4. Adjustable wrench: the opening of this wrench can be adjusted freely, which is suitable for irregular bolts or nuts.

When in use, the jaw should be adjusted to the same width as the opposite side of the bolt or nut, and make it close, so that the wrench movable jaw can bear the thrust, and the fixed jaw can bear the tension.

Wrenches are 100mm, 150mm, 200mm, 250mm, 300mm, 375mm, 450mm and 600mm in length.

5. Torque wrench: used to tighten bolts or nuts with socket. Torque wrench is indispensable in automobile repair. For example, torque wrench must be used to fasten cylinder head bolts and crankshaft bearing bolts. The torque wrench used in automobile repair has a torque of 2881 Newton meters.

6. Special wrench: or ratchet wrench, which should be used with socket wrench. It is generally used for tightening or dismantling bolts or nuts in narrow places. It can fold or assemble bolts or nuts without changing the wrench angle.

2、 Special tools

Special tools commonly used in automobile repair include spark plug sleeve, piston ring loading and unloading pliers, valve spring loading and unloading pliers, grease gun, kilogram item, etc.

（1） Spark plug sleeve

The spark plug sleeve is used for disassembly and assembly of engine spark plugs. The opposite side size of the inner hexagon of the sleeve is 22 ~ 26mm, which is used to fold 14mm and 18mm spark plugs; The opposite side of the inner hexagon of the sleeve is 17 mm, which is used to fold 10 mm spark plugs.

（2） Piston ring handling pliers

Piston ring loading and unloading pliers are used to load and unload the engine piston ring to prevent the piston ring from being broken due to uneven force.

When in use, clamp the piston ring loading and unloading pliers to the opening of the piston ring, gently grasp the handle, slowly shrink, the piston ring will slowly open, and install or remove the piston ring into or out of the piston ring groove.

（3） Valve spring handling pliers

Valve spring remover is used for loading and unloading valve springs. When in use, retract the jaw to the minimum position, insert it under the valve spring seat, and then rotate the handle. Press the left palm forward firmly to make the jaw close to the spring seat. After loading and unloading the air lock (PIN), rotate the valve spring loading and unloading handle in the opposite direction and take out the loading and unloading pliers.

（4） B. Qianhuang oil gun

The grease gun is used to fill grease at each lubrication point and is composed of oil nozzle, oil pressure valve, plunger, oil inlet hole, rod head, lever, spring, piston rod, etc.

When using the grease gun, put the grease into the oil storage barrel in small groups to eliminate the air. After decoration, tighten the end cap and use it. When adding grease to the oil nozzle, the oil nozzle shall be aligned and shall not be skewed. If there is no oil, stop oil filling and check whether the oil nozzle is blocked