Yuchai YC6A Series, Operation & Maintenance Manual

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检查电器线路各连接点的接触情况
Check the contact
of the circuit connection
检 查 所 有 重 要 螺 栓 螺 母 的 拧 紧 情 况
Check the
tightening of all key bolts and nuts.
若冷却系统结垢严重，水温高的应及时除垢
The furring
shall be removed if there is much furring in the cooling
system.
清洗呼吸器滤芯
Clean the element of the respirator
更换机油
Replace the oil
三
级
保
养
Third-level
maintenance
每
1500
小时
Every 1500 hour
解体整机清除油污、积炭、结焦等
Disassemble the
engine to emove the oil dirt, carbon deposit and coking
检查各摩擦副、运动件的磨损变形情况
Check the
wearing and distortion of friction parts and moving
parts.
检查喷油泵的工作情况
Check the working condition of
the fuel injection pump
检查喷油器的工作情况
Check the working condition of
the fuel injector
检查机油泵的工作情况
Check the working condition of
the oil pump
检查发电机及起动马达的使用情况，清洗轴承及其它机
件，加注润滑脂
Check the operation of the generator
and the start motor; clean the bearing and other parts;
fill lubricating grease
检 查 气 缸 垫 及 其 它 垫 片 的 使 用 情 况
Check the
operation condition of the cylinder gasket and other
gaskets
排除各种隐患
eliminate other malfunctions
更换机油
Replace the oil