8915-652
原动机将
不接受全部
负载
调速器是否已满
燃料
是的-
1、悬挂机构是否调整正确？
2、负载是否过大？
电压调节器（如使用）是否设置正确？
4、原动机上的燃油挡块设置是否正确？
否-
1、负载极限是否超出范围，是否调整正确？
2、燃油限制（如有配备）是否设置得过低？
3、燃油限制器是否有足够的气压？
4、悬挂机构是否粘滞或调整不当？
如果电动起动燃油限制器有足够的电压
电磁阀？
针阀
调整确实
未消除
不稳定。
（1） 是振荡
周期性且平滑
（非间歇）？
是的-
转至问题（2）。
否-
检查以下各项：
1、燃料来源是否充足且稳定？
2、速度设定参考是否稳定？
3、调速器油位是否低？
4、负载是否不稳定？
调速器油是否干净？
（2） 是的频率
高于5的振荡
赫兹？
是的-
检查以下各项：
调速器传动系。
调速器对准。
弹簧驱动油阻尼球头脏污（如有配备）。
4、喷油器损坏或缺火？
否-
转至问题（3）。
（3） 是振荡
与速度设置相关
变化？
是的-
必须找到速度设置变化的原因，并
已更正。
否-
转至问题（4）。
（4） 振荡
消失时
阻塞调速器
输出或运行
手动油门？
是的-
1、连杆是否松动或磨损？
调速器零件号是否适用于此应用？
3、更换调速器。
否-
1、检查负载波动。
2、检查燃油供应。
3、检查连杆是否松动或粘滞。
阻塞调速器输出或操作手时
油门，系统不受调速器控制，以及
必须格外小心，防止超速。做
如果超速速度装置不工作，请勿尝试。
调速器不会
关闭原动机
向下
调速器是否小
燃油位置？
是的-
悬挂机构设置不当，导致停机。
否-
调速器上是否有停机驱动信号？
2、停机是否适当调整？
调速器中的停机带是否已正确调整？
4、关闭燃油，更换调速器。

Prime mover will not accept full load. Is the governor at full fuel? YES— 1. Is the linkage adjusted properly? 2. Is load excessive? 3. Is the voltage regulator (if used) set properly? 4. Is the fuel stop on the prime mover set correctly? NO— 1. Is the load limit out of the way, and adjusted properly? 2. Is the fuel limited (if so equipped) set too low? 3. Is there adequate air pressure for the fuel limiter? 4. Is the linkage sticky or improperly adjusted? 5. If electric start fuel limiter—is there adequate voltage for the solenoid? Needle valve adjustment does not eliminate instability. (1) Are the oscillations periodic and smooth (not intermittent)? YES— Go to question (2). NO— Check the following: 1. Is the fuel source adequate and constant? 2. Is the speed setting reference steady? 3. Is the governor oil level low? 4. Is the load erratic? 5. Is the governor oil clean? (2) Is the frequency of the oscillation above 5 Hz? YES— Check the following: 1. Governor drive train. 2. Governor alignment. 3. Dirty spring-driven oil damped ballhead (if so equipped). 4. Bad injector or misfire? NO— Go to question (3). (3) Are the oscillations related to speed setting variations? YES— The cause of the speed setting variation must be found and corrected. NO— Go to question (4). (4) Does the oscillation disappear when blocking governor output or operating hand throttle? YES— 1. Is linkage loose or worn? 2. Is governor part number correct for this application? 3. Replace governor. NO— 1. Check for load fluctuations. 2. Check fuel supply. 3. Check for loose or sticky linkage. When blocking governor output or operating the hand throttle, the system is not under governor control, and extreme caution must be taken to prevent overspeed. Do not attempt if overspeed speed device is not functioning. Governor will not shut prime mover down. Is governor at minimum fuel position? YES— Linkage is improperly set to allow shutdown. NO— 1. Is shutdown actuation signal available at the governor? 2. Are shutdowns properly adjusted? 3. Is shutdown strap in governor properly adjusted? 4. Close off fuel and replace governor.