How to replace the air conditioning belt on the Sany 135 excavator

Introduction How to replace the air conditioning belt of Sany 135 excavator 1. First open the engine hood and remove the belt guard from the top of the air conditioning compressor. 2. Second, for easier disassembly and assembly, disassemble the fan impeller. 3.

How to replace the air conditioning belt on the Sany 135 excavator

1. First open the engine hood and remove the belt guard from the top of the air conditioning compressor.

2. Second, for easier disassembly and assembly, disassemble the fan impeller.

3. Finally, loosen the generator belt tensioner bolts, loosen the generator anchor bolts and replace the belt with a new one.

How to replace a badly worn engine belt

The generator belt is usually replaced every 3 years or 8 W kilometers. It is the most important belt in the car, connecting the generator, air conditioning compressor, booster pump, idler pulley, tensioner pulley, crankshaft pulley, etc. The car generator fan belt should be replaced every 60,000 kilometers. If you experience a squealing noise coming from the starter belt when the car is cold, car owners should go to the store as soon as possible.ible to check if this is caused by the aging of the generator belt. If not replaced in time, the vehicle drive belt battery will run out quickly. Checking the generator belt in store is a basic necessity. Because no matter what type of belt is used for a long time, it will age. The same goes for the car's alternator belt, which causes the starter belt to squeal when the car is cold. Go to the store to check if this is due to the aging of the generator belt. If it is not replaced in time, the vehicle drive belt will break and the battery will run out quickly. All car owners have time to go to the garage to check the generator belt. The car generator generates electricity through the motor connected to the belt, and the belt connects to the generator; it generates electricityity in operation; Most of them need to be replaced every 3 years or 8 W kilometers.

How to change a truck belt?

The engine belt is one of the most important parts of the car engine. How should car owners check the condition of the engine belt and how to replace it?

< strong>How to install the engine belt and pulley correctly?

< p>How to replace a badly worn engine belt

Some engines use a flat fan belt, which is installed over the pulley. Check the fit of the belt and pulley during installation. Flat belts must fit well over the pulleys, otherwise the belt will not last long. Some models use V-belts. If errors occur, they must be corrected in time.

Phenomenon: There are abnormal noises when the engine is running, such asrustles, squeaks, squeaks, etc. When the engine stops rotating, you can use your hands to move the intermediate belt pulley and check if there is If you notice significant play, the intermediate belt pulley needs to be replaced.

When driving without a quick replacement, the intermediate pulley sometimes oscillates a lot, causing accelerated wear of the belt. Sometimes the middle pulley of the belt gets stuck and the belt becomes polished. the pulley itself falls, causing the belt to come out of the groove, and the engine generator, water pump, power steering pump, air conditioning pump and other components requiring engine power lose their power source, causing the vehicle to break down and unable to drive normally.

When the car engine runs between 60,000 and 90,000 kilometers, we need to check the wearof the belt and also pay attention to the working condition of the intermediate pulley of the engine belt. If there is any abnormality, it must be replaced. Even if the belt wear is not serious, the intermediate pulley of the engine belt must be replaced.

Daily belt inspection methods

Belt inspection mainly includes two aspects: belt tension and wear.

First check the belt tension. At this point you can use your thumb to press firmly on the belt between the two pulleys. The pressing force is approximately 10 kg. If the amount of belt pressure is around 10mm, the belt tension is considered appropriate. If the vacuum is too great, the belt is considered to have insufficient tension. If the belt has almost no compression, it is considered to have too much tension. WhenIf the tension is insufficient, the belt tends to slip. When the voltage is too high, it is easy to damage the bearings of various auxiliary machines. For this reason, the corresponding adjusting nuts or bolts must be loosened to adjust the belt tension to the optimal state.

In addition, you should also pay attention to the wear of the belt. The old belt is very worn, which leads to a sharp reduction in the contact area between the belt and the pulley. At this time, as long as you press the belt hard, the belt will sink deep into the pulley groove. The belt rubber also has an aging problem. If the rubber of the belt is seriously aged, the belt should be replaced with a new one in time.

There are several belts on the front of the engine, and each belt plays an important role. On the engine, various auxiliary machines aredriven via belt transmission, such as air conditioner compressor, power steering oil pump, alternator, etc. If the belt breaks or slips, the related auxiliary machines will lose their function or their performance will be reduced, thereby affecting the normal use of the car. This is why a daily inspection of the belt is very important.

The function of the belt is to transmit power.

1. Accessory belt, which transmits the power supplied by the crankshaft to the air conditioning compressor, power steering pump, water pump, generator, etc. ;

2 . Timing belt, The power delivered by the crankshaft is transmitted to the camshaft to drive the timing system;

3. Some engines equipped with a balance shaft also drive the camshaft Balancing via a belt.

1. Install firstthe motor pulley.

2. Hook the bottom of the generator belt to the crankshaft sprocket.

3. Press the tensioner spring. As shown in the image below:

4. Tighten the tensioner spring screw.

5. Hook the upper part of the motor belt to the motor pulley, and the operation is completed.

Detailed information:

There are usually five wheels on the motor belt of the truck. . These are:

1. The crankshaft pulley, the power source is locked, and the rotation of the belt is provided by this pulley.

2. The water pump pulley rotates to circulate cooling water inside the engine ring.

3. The generator pulley rotates to rotate the generator and provide additional power to the vehicle.

4. The compressor pulley rotates to achieve the functioncompressor, supply low temperature refrigerant to the air conditioner and reduce the temperature inside the car.

5. Tension pulley to ensure the belt is running at proper tension.

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