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Jinan Ruihai Hydraulic Machinery Co., Ltd. is a leading domestic manufacturer specializing in the production of hydraulic lifts, lifting platforms, freight elevators, and aluminum alloy lifts. As a member of the China Lifting and Transportation Warehousing and Logistics Association, the company is committed to delivering high-quality products and maintaining a reputation for trustworthiness and reliability.
With years of research and development experience, Jinan Ruihai has compiled common faults and their causes related to aerial work platforms, aiming to provide useful insights and assistance to users.
**Common Failures of Aerial Work Platforms**
1. New hydraulic oil deteriorates quickly after installation.
2. The automatic transmission overheats and emits smoke from the fuel filler cap.
**Possible Causes of Aerial Work Platform Malfunctions**
1. Blockage in the hydraulic oil radiator piping.
2. Improper usage, such as frequent overloading or driving at high speeds.
3. Sticking of the pressure relief valve connected to the hydraulic oil radiator.
4. Low main oil circuit pressure causing clutch or brake slippage during operation.
5. Insufficient free clearance in the clutch or brake system.
**Diagnosis and Troubleshooting for Aerial Work Platform Issues**
Start by running the vehicle at low and medium speeds. Once the automatic transmission reaches normal operating temperature, check the temperature of the hydraulic oil radiator while the engine is running. Normally, the radiator should reach around 60°C. If the temperature is too low, it may indicate clogged pipes or a stuck pressure relief valve, which prevents proper cooling and leads to oil degradation.
If the temperature is excessively high, the issue could be due to excessive free clearance in the clutch or brake system. In such cases, the automatic transmission should be disassembled and adjusted.
Check if the throttle cable or throttle position sensor is properly installed. If not, disassemble the automatic transmission to inspect the oil pump for wear, check if the main oil pressure regulating valve and throttle valve are stuck, and look for any leaks in the main oil circuit.
If the hydraulic oil temperature is normal, measure the main oil pressure. If the pressure is too low, verify the adjustment of the elevator’s throttle cable or throttle position sensor.
If all previous checks show no issues, the problem might stem from frequent overloading or using incorrect-grade hydraulic oil. In this case, drain the old oil completely and replace it with the recommended grade and quantity.
Every component used in the elevators and lifting platforms produced by Jinan Ruihai is sourced from reputable domestic suppliers, and imported parts can also be customized according to customer preferences. By continuously improving product quality, the company ensures that its offerings meet customer expectations and supports long-term business growth. (http://)
In the past, conventional Elevator systems were comprised of individual elevator controller and Inverter, mounted and wired separately. This arrangement required significant engineering effort, hardware wiring and software programming.
