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Daily Maintenance and Inspection Methods for Cranes (Part 1)

Daily Maintenance and Inspection Methods for Cranes (Part 1)

When it comes to lubricating cranes, let’s first address the issue of replacing the gearbox oil. For cranes that were installed earlier, the gearbox oil should be changed for the first time after 200 operating hours—or every 2 months, whichever comes first. During this initial oil change, be sure to flush the gearbox thoroughly with fresh oil, and don’t forget to clean the magnetic drain plug as well. After this first oil change, under normal conditions, the oil should be replaced annually. However, for larger gearboxes, you may extend the oil-change interval slightly, depending on the oil’s condition. When adding new oil, take care to prevent dirt and dust from entering, ensuring the oil remains clean and free from contaminants. Remember, though, that adding too much oil isn’t necessarily better—it can lead to unnecessary waste and potential issues down the line.

2020-02-13

Daily Maintenance and Inspection Methods for Lifting Machinery (Part 2)

Daily Maintenance and Inspection Methods for Lifting Machinery (Part 2)

3. Motor Inspection: Check if the wiring is loose and verify that the junction box is securely fastened. 4. Brake Inspection: Ensure the brake can open smoothly, measure whether the brake gap falls within the permissible range, and assess the wear and thickness of the friction pads—replace them immediately if necessary. Also, inspect the brake’s mounting bolts and adjusting nuts for any signs of loosening. 1.4 Control Panel Inspection: Begin by examining the cable entry point into the control box—check that the seal is intact and the cable connectors are tightly secured. Next, confirm the remote receiver is functioning properly, verify that all indicator lights are working as expected, and ensure the signal output plug is firmly and reliably connected. Then…

2020-02-13

Crane Maintenance Guidelines: Protective Measures for Crane Electrical Equipment

Crane Maintenance Guidelines: Protective Measures for Crane Electrical Equipment

To protect the electrical equipment of cranes and ensure the safety of personnel, crane electrical control systems must incorporate essential electrical protection measures. 1. Main isolating switch: When performing maintenance or inspections on electrical equipment, it is generally recommended to work under de-energized conditions. Therefore, there should be an isolating switch or other isolation measures between the electrical equipment and the power supply network. When the isolating switch is in the open position, it must maintain a sufficient breaking distance and provide a clearly visible break point, allowing maintenance staff to visually confirm that the power circuit has been safely disconnected. It is particularly important to note that air switches and molded-case circuit breakers do not have a clearly visible break point when in the open position, and thus cannot be used as proper isolating switches.

2020-02-13

The domestic mini-crane market may soon usher in a transformation.

The domestic mini-crane market may soon usher in a transformation.

In recent years, China’s mini crane market has experienced remarkable growth, serving as a key driver for both the country’s micro-crane industry and the broader lifting and material-handling sector. It has become a vital force behind the profitability expansion of China’s lifting and transportation equipment industry, solidifying its pivotal role in the market. Thanks to continuous innovation by lifting equipment manufacturers, mini cranes—with their compact size, exceptional flexibility, convenience, and high efficiency—have increasingly emerged as the ideal solution for lightweight lifting applications, steadily meeting expanding user demands. Since entering the market, these lifting machines have quickly become the industry’s latest favorite, sparking a transformative shift toward lighter, more efficient lifting solutions. As a result, the lifting machine market continues to heat up, reflecting an inevitable trend in societal and industrial development.

2020-02-13

Precautions for the Break-In Period of New Starter Hoists

Precautions for the Break-In Period of New Starter Hoists

Proper running-in of a new crane or hoist is a critical phase to ensure its long-term, safe operation. During this period, the surfaces of moving components are fully conditioned, which helps extend the lifespan of the truck crane chassis. Therefore, it’s essential to carefully carry out the running-in process for new vehicles, ensuring the vehicle is already in proper working condition before starting. Running-in precautions: 1. The recommended mileage for running-in a new vehicle is 2,000 km. 2. Within the first 50 km of driving and after each wheel change, always tighten the wheel nuts to the specified torque. 3. Regularly check the tightness of all bolts and nuts, paying special attention to the cylinder head bolts, especially after the vehicle has traveled 300 km.

2020-02-13

Bridge Crane Safe Operation Procedures: The Twelve Commandments of Crane Operation

Bridge Crane Safe Operation Procedures: The Twelve Commandments of Crane Operation

1. Drivers must have received professional training, be familiar with the mechanical structure and operational performance of the equipment, and hold the required certification before operating. 2. Only authorized drivers are permitted to operate the crane; unauthorized personnel are strictly prohibited from doing so. Additionally, drivers must not operate the crane if they are under the influence of alcohol or while ill. 3. Before starting operation, always sound a warning signal to alert others to proceed with caution. 4. After major overhauls or when bridge cranes are disassembled for reassembly, a thorough testing procedure must be conducted. The equipment can only be put into use once it has been confirmed to meet all technical performance standards. 5. Prior to commencing work, inspect the safety and lubrication conditions of all braking systems and structural components. Also, verify that all limit switches and safety devices are functioning smoothly and reliably. 6. Bridge cranes must be equipped with reliable grounding systems, and the casings of all electrical equipment should be properly connected to the crane’s mainframe. 7. All

2020-02-13

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Wind power equipment: Keep half your mind awake, and let the other half drift in a dreamy haze.

2020-02-13

The industry is experiencing explosive growth, reshaping the competitive landscape of the wind power equipment sector.

2020-02-13

The Ministry of Finance clarifies the detailed rules for the use of special funds allocated to the wind power equipment industry.

2020-02-13

Three Major Favorable Policies Supporting the Machinery Industry in 2009

2020-02-13

National Administration of Quality Supervision: Notice on Opinions Regarding the Rectification Work for Metallurgical Lifting Machinery

2020-02-13

A 4 trillion yuan investment boost fuels hopes for the lifting equipment industry's rebirth.

2020-02-13

Chengdu Chengde Heavy Forging Co., Ltd.

Contact: Mr. Feng
Mobile phone: +86-13982279038
Landline: +86-2883066386

Mobile phone: +86-18980030810 (Sales Director, Minister Wang)

Mailbox: 423136809@qq.com
Address: Jinniu Village, Xinmin Town, Xindu District, Chengdu City, Sichuan Province

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