Yuchai YC310LC-8, Руководство по эксплуатации

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Hydraulic System
2. Safe operation of high-pressure hose
If the high-pressure hose leaks oil or fuel oil, it will cause a fire or failure of operations, resulting in
serious injury or damage. If you find the bolt is loose, you should stop working and tighten the bolt to
the specified torque. The welding of the machine cannot be carried out under the condition that the
hydraulic lines (hoses) are not isolated. And stop operation to have bolts to be tightened to the specified
torque. If you find any damages of the hose, please immediately stop the operation, and contact the
agents of Yuchai.
If the following questions are found, the hose should be replaced:
1) Damage or leakage of hydraulic fittings;
2) Cladding frayed or broken or strengthening layer exposed;
3) Partially expansion of the cladding
4) The movable part distorted or crushed
5) Impurities in the cladding.
3. Safety rules of hydraulic oil
The hydraulic oil in the work or after work that has not cooled is of high temperature and high pressure.
Before the inspection or release of oil, the oil should be cool enough that you can touch the oil cap or
plug to prevent burns caused by the spraying oil or the contact with hot parts. Even if the oil has cooled,
before removing the cap or plug, you should also release them slowly to drain the hydraulic pressure
inside the tank.
1. Safety rules of high-pressure oil
There is always pressure inside the hydraulic system.
When checking or replacing the pipe or the soft line,
be sure to check whether the pressure within the
hydraulic oil has been released. The pressure in the
oil line can cause serious injury or damage. So, you
must do in accordance with the following provisions:
1) When the pressure is within the hydraulic system,
do not work for inspection or replacement.
2) If there is any leak in the pipe or soft line, the
surrounding area is wet. So, we must check if the
pipe or soft line is broken and if the hose is
inflated. When checking, you should wear
goggles and leather gloves.
3) High pressure oil leaking from the hole will
penetrate the skin. If you have direct contact with
it, your eyes may be blind. If you are hit by the
high oil flow and the skin or eyes are injured,
rinse immediately with plenty of water and seek
medical care immediately
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