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叉车虽然是机器但是它也会像人一样“生病”，叉车一旦病了就会影响到企业物品运输线的运作，因此了解学习叉车的“常见疾病”是很有必要的，这样才能在它生病时对症下药。下面我们就带领大家一起看一看济南二手叉车的几个“常见疾病”以及如何这些“常见疾病”。

Although the forklift is a machine, it will also be "sick" like people. Once the forklift is sick, it will affect the rapid operation of the enterprise's goods transportation line. Therefore, it is necessary to understand and learn the "common diseases" of the forklift, so as to quickly prescribe the right medicine when it is sick. Let's take a look at several "common diseases" of second-hand forklifts in Jinan and how to treat them.

病症一

Disease 1

症状：作业时升降油缸回油管处严重漏油且自动下降

Symptom: the oil return pipe of the lifting cylinder leaks seriously and drops automatically during operation

病因分析：位于起落油缸与活塞杆之间的油封受损

Cause analysis: the oil seal between the landing cylinder and the piston rod is damaged

方法：替换油封。建议用活口硬铁皮将油封稳定，用钳子放入缸桶，可有效防止油封再次出现破损。

Treatment: replace the oil seal. It is recommended to stabilize the oil seal with flexible hard iron sheet and put it into the cylinder barrel with pliers, which can effectively prevent the oil seal from being damaged again.

病症二

Disease II

症状：作业时左右升降油缸活塞杆起升不同步

Symptom: the lifting of the piston rod of the left and right lifting cylinders is not synchronized during operation

病因分析：位于起落油缸与活塞杆之间的尼龙导向套扩张

Cause analysis: expansion of nylon guide sleeve between landing cylinder and piston rod

方法：先对导向套进行适宜调整，用钢锯锯掉3mm导向套，使导向套留有一定的开口缝隙，保障扩张参数。

Treatment method: adjust the guide sleeve properly first, and saw off the 3mm guide sleeve with a hacksaw to leave a certain opening gap for the guide sleeve to ensure the expansion parameters.

病症三

Disease III

症状：作业时无升降、方向

Symptoms: there is no lifting or direction during operation

病因分析：液压油不足、液压油中有杂质、滤网破损

Cause analysis: insufficient hydraulic oil, impurities in hydraulic oil and damaged filter screen

方法：治标：液压油不足或油中有杂质，更换液压油标准线上；滤网破损，更换滤网。

Treatment method: symptom: if the hydraulic oil is insufficient or there are impurities in the oil, replace the hydraulic oil to the standard line; If the filter screen is damaged, replace it.

治本：拆卸液压体系，清理疏导液压体系。

Root cause: dismantle the hydraulic system, clean and dredge the hydraulic system.

病症四

Disease IV

症状：作业时转向轮不灵敏

Symptom: the steering wheel is not sensitive during operation

病因分析：转向设备定位弹簧片出现损坏或转向油缸渗漏

Cause analysis: the positioning spring of steering equipment is damaged or the steering cylinder leaks

方法：在静止时，若转动方向盘不费力，则转向设备定位弹簧片损坏，更换弹簧片即可；若转动方向盘费力，则油缸活塞油封破损导致转向油缸渗漏，更换新活塞油封即可。

Treatment: when the steering wheel is stationary, if it is not laborious to rotate the steering wheel, the positioning spring piece of the steering equipment is damaged, and the spring piece can be replaced; If the steering wheel is hard to rotate, the oil seal of the oil cylinder piston will be damaged, resulting in the leakage of the steering cylinder. Replace the oil seal with a new one.

通过学习，叉车出现小毛病时我们就能解决问题，让叉车重新投入工作。但是一旦叉车出现什么较为麻烦的病症我们又该如何是好呢？这时候就需要找到叉车购买方，由他们进行相关服务了。更多相关事项可以来我们网站http://www.jnhgjx.net咨询了解。

Through learning, we can quickly solve the problem when the forklift has a small problem, so that the forklift can be quickly put back into work. But what should we do once there is any more troublesome disease in the forklift? At this time, we need to find the forklift buyer to provide relevant professional services. For more information, please visit our website http://www.jnhgjx.net Consultation and understanding.