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The small crane is widely used in indoor power maintenance
Apr 27, 2018

The small crane is widely used in indoor power maintenance, engineering construction, curtain wall decoration and other places, is a lifting and handling machinery. Now is the time to enter the summer. What should you watch out for when driving a small crane in the summer? Xiao Bian made a list of some of the information we had collected here for a brief discussion:

Brake fluid in the high temperature environment, easy to vaporize, in the brake pipe to form air resistance, resulting in brake failure, so pay attention to adjust the brake system.

In summer, small cranes are prone to flat tires (especially wheeled). Xiao Bian reminds everyone to pay attention to check the tire pressure before driving the crane and reduce the tire pressure properly.

In summer, the temperature is relatively high, the viscosity of the oil will decrease, and it will cause poor lubrication. Therefore, check the amount of oil under the oil and add or replace it in time.

The engine of the small crane is also prone to overheating, so it is necessary to strengthen the inspection of the engine cooling system, and add cooling water in a timely manner. When the water temperature exceeds 100 degrees, it is necessary to stop and cool in a cool place.

The above are some of the precautions for operating the small crane in the summer and I hope to help you.

The oil spill of a small crane is a problem that many owners and drivers will encounter. It is rather annoying and wastes oil and makes the car dirty. In fact, under normal circumstances, Xiaobian does not recommend overhaul, as long as we find the cause of the oil spill to solve it.

The most common problem of oil leakage of small cranes is caused by aging damage of each seal ring of the oil cylinders, especially for small cranes that have been running for a long time. The rubber seal rings are subject to changes in thermal expansion and contraction for a long time and plasticizers are lost, resulting in seals. Ring contraction performance will lose its elasticity, and more serious ones will crack and break, causing oil leakage. Here Xiaobian gives you a brief explanation of how to solve the troubling problem of a small crane leaking oil:

Remove the leg of the lower part of the small crane cylinder and remove the two-way hydraulic lock on the fuel tank. Pay attention to the use of cotton gauze to block the interface of the small crane fitting tubing to prevent the oil from splashing out due to pressure.

Remove the two nuts on the lower part of the small crane cylinder and remove the cylinder upwards from the horizontal box.

Remove the spring on the guide sleeve, and use a suitable cylinder to throw the guide sleeve into the cylinder to expose the lower end of the card key. After removing the three-piece card, remove the piston rod with the guide sleeve piston.

In order, remove the piston and guide sleeve, clean it with clean kerosene, dry it, replace it with a new seal, and replace it with a new one. Use a rubber cover to flatten the keyway in the cylinder and use butter or hydraulic oil to install the piston into the cylinder. A flat-blade screwdriver inserts the seal's lip into the cylinder to drop in.


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