How To Prevent Air Intrusion Hydrau...
How To Prevent Air Intrusion Hydraulic System
To prevent air and water intrusion hydraulic system
The hydraulic system to prevent air intrusions
The hydraulic system to prevent air intrusions
At room temperature at atmospheric pressure and hydraulic oil contains volume ratio of 6 to 8% of the air, when the pressure is lowered, the air will be freed from the oil bubble burst so that hydraulic components "cavitation", producing the noise.
A lot of air into the oil will turn the "cavitation" phenomenon intensified hydraulic fluid compressibility increases, job insecurity, reduced work efficiency, the implementation of components, there work, "crawl" and other adverse consequences. In addition, the air will allow hydraulic oil oxidation, accelerate the deterioration of oil. To prevent air intrusion should note the following points:
1. After the maintenance and oil change according to random "manual" for excluding the air system to normal operation.
2. Hydraulic pump nozzles shall not be exposed to oil absorption of oil, Oil pipeline must be sealed well.
3. Oil pump drive shaft seal should be good, pay attention to replace the oil seals should be used where "lips" Genuine oil seal, can not use "single lip" seal replaced because the "single lip" seal can only be a one-way closure oil, do not have the gas sealing function.
The unit had a major overhaul after the ZL50 loaders, hydraulic pump consecutive "cavitation" noise, such as elevated tank oil level automatic failure, upon inquiry, hydraulic pump repair process, namely, hydraulic pump drive shaft was found misuse of the seal "single lip" seal due.
