Yuchai U35, Руководство оператора

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5-2
Common sense for maintenance
New machine running-in
The initial 100 hours of the machine are the running-in period. During this period, it is
important to use the machine with caution and not use it for tasks with excessive load or
work intensity. During the first 50 hours of the running-in period, only 80% of the working
load is allowed. The quality of the running-in period affects the service life of the machine.
After the first 50 hours of work, the first inspection and maintenance of the machine should
be carried out according to the inspection and maintenance checklist. At the same time,
check the contamination level of hydraulic oil, and the value should not exceed grade NAS9.
Otherwise, replace the hydraulic oil.
When the hydraulic system is not working, the engine should not be run at high speed. Only
when the hydraulic oil temperature exceeds 20 degrees Celsius can the attachment be
operated.
Construction on a dusty site
Operation on dusty site shall be done with the following procedure finished:
● It is necessary to frequently check the air filter for blockage with the air filter blockage
sensor, and the filter element shall be cleaned frequently.
● Clean the radiator core frequently to avoid blockage.
● Frequently clean and replace the fuel filter element.
● Clean the electrical components, especially starting motors and alternators, to avoid dust
accumulation.
● During checking or replacing the oil, move the machine to a dust-free place to prevent dust
from entering the oil.
● Clean the debris adhered to the piston rod of each oil cylinder and keep the piston rod
clean.
Oil and filter element
Please use clean oil and grease, and prevent impurities from entering the container of the
oil.
After replacing the oil or the filter, check the waste oil and filter element for metal chips or
impurities. If a large amount of metal chips or impurities are found, report it to the person in
charge of the machine and take appropriate measures.
Do not mix different grades of oil together. If different oil brand need to be added, the old oil
should be drained and replaced with the new brand oil.
Timer reading
Check the timer on the dashboard every day to check if it is time for maintenance according
to the number of working hours.
Use original accessories
The use of original Yuchai accessories is an important factor in ensuring the normal
operation of the machine and prolonging the service life of the machine.