Yuchai YC6A Series, Operation & Maintenance Manual

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 Check the cooling fluid in radiator to make sure cooling smoothly.
 检查排除燃油管路的空气和柴油滤清器的水；
 Check and drain the air in fuel pipeline and water in diesel filter.

检查油箱，若不够，添加燃油
;
 Check fuel tank and add fuel if it is not enough.

检查电器系统（各连接线路、开关接线等是否牢固可靠，电瓶电解液是否充足，若不够，
加足电解液）
;
 Check electrical system (credibility and fastness of all connections and switch
connections; the capacity of battery electrolyte, add it if necessary).

检查皮带，松紧度应适宜，皮带过松打滑使水泵、风扇的工作不正常，冷却效果差，发动
机水温高，过紧则使皮带轮轴受力过大、皮带寿命缩短
;
 Check the strap, the tightness should be suitable; if too loose, water pump and fan will
work abnormally by strap skidding, the cooling effect will be very bad and water
temperature in engine will be very high; if tool tight, the load of sprat axle is too high and
cut service life of sprat.

检查汽车底盘和操纵装置，禁止汽车带病行驶。
 Check vehicle batholiths and control devices; avoid vehicle runs in danger.
4.1.2 起动
Starting
完成起动前准备工作并确认符合要求后，才可以起动发动机（冬天天气寒冷时需对柴油
机预热后才能起动），起动发动机时，持续起动时间不能超过
10
秒钟
;
二次起动的时间间隔不
应少于
1
分钟
;
若连续三次均无法起动，则应检查原因，排除故障，再行起动。起动后检查
:
Start the engine (In cold winter, diesel engine should be started after heating for a while) after
completing preparation and ensuring all requirements are satisfied. When starting engine,
continuous starting time should be limited in 10 seconds; the time gap for restart should be at
least one minute; if it can not be continuously started for three times, driver should check the
cause and eliminate faults and restart engine. After starting, driver should check:
润滑油压力
:
在怠速时不能低于
0.1Mpa
，压力过低，发动机润滑不良会造成各运动副磨损
;
Lubricant pressure: The pressure should not be lower than 0.1Mpa in ideal speed; if it is
too low, bad lubricating of engine will cause secondary worn of action.
水泵工作情况良好，确认冷却液已进入发动机水套内循环 ; 无 “ 三漏 ” 、异响现象 ;
Good working situation of water pump; make sure cooling fluid has entered the internal
cycle of engine water jacket; no “three leakages” and abnormal sound.