Yuchai YC6A Series, Operation & Maintenance Manual, Page: 66 / 99

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at least 1 minute; the start time shall not exceed 10 sec to avoid the damage due to overheat.
It is forbidden to press the start button again when the diesel engine and motor operate,
otherwise, the gear and gear ring will hit each other to cause damage. When the engine
starts to operate, release the button to reset the small gear.
发电机为
JF
型硅整硫无刷发电机，工作电压为
28V
，根据不同的机型，其功率有
0.5KW
、
0.75KW 两种，不允许超负荷使用。发电机为负极接地（搭铁），不能接错，否则将会烧坏电机。
并严禁将发电机
“+”
与
“F”
或
“-”
极接线端头相碰，否则将会损坏电压调节器。
JF silicon rectifying brushless generator is adopted with working voltage of 28V, and there are
2 powers of 0.5 KW and 0.75 KW depending on the different models. It is not allowed to
operate overload. The generator is of negative ground type, and it must be connected
correctly to avoid the motor from burnt.
It is forbidden to connect the terminal “+” to terminal
“F” or “-”, otherwise, the voltage adjustor will be damaged.
电压调节器的作用是当发电机转速发生变化时，自动地将发电机输出的电压稳定在一定
的范围内，供用电器使用并向蓄电池充电。电压调节器安装时应垂直安装，接线柱向下，调
节器是较精密的电器，切勿随意调整，当确认有故障时，应将盖子拆下，先检查触点有否污
染不通，触点弹簧仅起调节电压数值的大小作用，拉长弹簧电压上升，反之下降。每经工作
350
小时后，应检查电压数值并整修触点，调节器衔铁与铁芯间隙应为
1.4
～
1.5mm
。
The voltage adjustor is used to stabilize the output voltage within a certain range
automatically when the rotation speed of the generator changes, and it also serves the
electrical device and battery charging. The voltage adjustor shall be installed vertically with
the terminal post downwards. It is not allowed to adjust the adjustor since it is a precise
device. When malfunction occurs, remove the cover first, then check whether there is dirt on
the contact. The contact spring is used to adjust the voltage: the voltage increases when the
spring extends, otherwise, the voltage decreases. Every after 350 hours working, check the