吊重时，伸缩缸无杆腔是高压腔，苗圃吊有杆腔是低压腔，内泄漏是从无杆腔流向有杆腔。液压缸活塞初始密封性能由密封件质量、活塞沟槽尺寸、活塞与缸筒内表面的加工质量等因素决定。活塞和密封件完好的液压缸在相同负载，不同活塞位置内泄漏量的变化，由缸筒内表面的加工质量决定，只要压差相同，无论无杆腔向有杆腔还是有杆腔向无杆腔，内泄漏量相同。也就是说缸筒内表面缺陷引起的泄漏与泄漏方向无关。苗圃吊

　　进行中间位置内泄漏检测目的是进一步确定缸筒内表面的加工质量引起的内泄漏，关键是在密封件两侧建立一定压力差。当将液压缸无杆腔闭锁，向有杆腔注入压力油时，活塞的受力情况。此时活塞(活塞杆)有向左运动的趋势。苗圃吊

国骏牌农林吊运机能为您*省时、省力、省钱的原因是：苗圃吊

Guojun brand agricultural and forestry lifting machine can s*e time， effort and money for you because:

1. Guojun crawler-type agricultural and forestry crane {Jing} replaced the era of lifting trees completely by manpower for more than half a century， and realized a portable and fast way of work.

2. In the tronlsplantation of garde*ees， we solved the problems of high labor cost (300-500 yuan per person per day) and low work efficiency (7-15 trees per person per working day with a diameter of 80-120

With this equipment，苗圃吊， the production efficiency can be increased by 20-30 times under the same conditionls. A Guojun brand farm and forestry crane = 14 tree workers.

3. Guojun Agricultural and Forestry Lifting Machine has the characteristics of "high intensity， low fuel conlsumption， easy operation， durability， beautiful appearance， low failure rate， easy maintenance， safety and reliability". It enables operators to work effectively in a relaxed working environment. It is a modern ideal tool and equipment in line with the characteristics of gardening production and national conditionls in China. It is suitable for lifting and transporting in different working environments. It is easy to lift big trees with earth balls less than 1.4 meters in diameter and 1.5 tonls in weight. More than 6 trees are hoisted every hour， which i*atched with the tree di*er and has higher efficiency. It can also be used for lifting，苗圃吊车， lo*g and unlo*g and soil conlsolidation in conlstruction projects. The operation efficiency i*ore than 20 times that of manpower.

1、液压油泵压力低，噪声大 苗圃吊

原因：液压系统有空气，液压油少，苗圃吊批发，超x速运转，零件有损坏

排除方法：排除系统中的空气，加足液压油，苗圃吊树机，按规定速度运转，更换已损元件！

2、液压油泵前端及轴端处漏油苗圃吊

原因：密封圈损坏，输入轴损坏，轴端跳动太大，损坏了油封。

排除方法：更换密封圈，更换轴套，更换轴端油封。

3、液压油泵温度过高苗圃吊

原因：超负荷运转，零件有损坏