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rotation speed of 500
~
1400r/min and fuel supply angle advance of 5°
~
6°; there is scale
showing fuel supply time at outer round of the advance device, and when the scale is aligned
to the scale on the pump body, the fuel supply of the fuel injection pump first cylinder begins.
The user shall check the lubricating oil quantity in the advance device, and fill full when
inadequate. (Fig-2-17).
Fuel supply advance angle is important quality control item, and
the adjustment shall be carried out by the special staff of Yuchai service station.
高压油泵的输油泵的结构如图
2—18
,输油泵上设有手动驱动装置,用来排除燃油管路内
的空气,使用时拧开手柄紧帽,手柄即会升起,然后向下压手柄,如此往复运动,即能从油箱
里吸取柴油供给油路各油腔,同时,松开放气螺塞,排除掉管路内空气,使用完毕,应将手柄
紧帽旋紧,以免柴油机工作时空气进入供油系统中,另外,进油接头螺栓内有一小滤网,用了
一段时间后应取下清洗,以免因堵塞而影响供油。
The fuel transfer pump structure of the high
pressure fuel pump is shown as Fig 2-18; manual drive device is designed on the fuel transfer
pump tp exhaust the air in the fuel pipe; loose the lever screw when using, and the lever will
raises; press the lever downwards and repeat the operation, the diesel oil will be suck from
the tank to the fuel path, meanwhile, release the exhaust plug to exhaust the air in the pipe.
Tighten the crew after using to avoid the air from entering the fuel supply system when the
engine works. There is a small filtering net in the fuel inlet connector bolt, and it could be
cleaned after using for some time to avoid blockage to affect the fuel supply.
Summary of Contents for YC6A Series
Page 11: ...4 YC6J...
Page 12: ...Fig 4 Assembly Layout for YC6J Diesel Engine may differ from the practical configuration...
Page 13: ...13 YC6A A8700 YC6A series construction engine A8700 external characteristic curve...
Page 15: ...15 YC6B B7700 YC6B series construction Turbocharged engine B7700 external characteristic curve...
Page 16: ...16 YC6J J8000 YC6J series construction engine J8000 external characteristic curve...
Page 64: ...64 2 31 Thethermostator is of wax type and installed in the water outlet of the pipe It is not...
Page 98: ...98 the engine to check repair and replace damaged parts...