Yuchai YC25-8, Руководство пользователя

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Hydraulic Digger
5-2
General Knowledge of Maintenance
New machine’s break-in
The incunabulum 100 hours is the break-in period. It need to use
the machine careful in the period. No let the machine do the works
which overload and the work intensity too high. First 50hours,it only
allow to bear overload work abut 80%.
After the first 50hours,it should to do the first Check & repair as the
list of the Check& maintenance, replace the oil and the filter. And
the Check the pollute grade, too. The value not exceed NAS9
grade. Otherwise, it needs to replace the hydraulic oil.
When the hydraulic system doesn’t work, it doesn’t allow the
engine run with the high-speed. It could operate the operation
device when the temperate of the hydraulic oil exceed 20
0
.
Operation at the place which has much dust
When the machine operated at the place which has mush dust,
please do as follow:
●
Use the air obstruct sensor to Check whether the air filter
obstructed regular. It requests to clean the core the filter
●
Clean the core of the radiator regular to avoid obstruct
●
Clean and replace the core of the fuel filter regular
●
Clean the electric part, especially the start motor and the AC
engine
●
It need to move the machine to the place where not have the
dust when it Checked or replace the oil
Hydraulic oil and the filter core
Please use the clean machine oil and lube, don't allow the impurity
into the container of the machine oil
After replace the oil and the filter core, it need to check whether the
old oil and the filter core have the metal scraps or the impurity. If it
finds have many the metal scraps or the impurity, it should tell the