故障三：螺杆旋转困难，运行时泵内产生不正常的机械摩擦声，甚至发生螺杆"咬死"现象
1、泵内滑动轴承或螺杆螺旋段内的间隙中卡有介质
清除杂质，并检查过滤器是否损坏，必要时修理甚至更换磨损零件
2、螺杆螺旋面已经损坏
更换磨损的螺杆
3、滚动轴承配合松动或已磨损造成主动螺杆和螺杆衬套的同轴度超差或无法正常运转
更换轴承
4、推力轴承磨损
检查进入推力轴承的油路是否被垫片或杂质堵塞，清除或清除进入推力轴承的杂质，更换磨损的推力轴承
5、螺杆衬套与泵体的配合松动或位置发生变动
重新装配，调整好位置
6、联轴器与主动螺杆的同轴度超差
调整好同轴度
SNH卧式三螺杆泵型号(SNH卧式安装、SNS立式安装、SNF法兰式安装、SNE插装式安装)(R为右旋，L为左旋)
SNH40R38E6.7W23 SNH40R38U8W23 SNH40R38U12.1W23 SNH40R38UHJ92NW23 SNH40R38UM3NW23 SNH40R38K2W23
SNH40R46E6.7W23 SNH40R46U8W23 SNH40R46U12.1W23 SNH40R46UHJ92NW23 SNH40R46UM3NW23 SNH40R46K2W23
SNH40R54E6.7W23 SNH40R54U8W23 SNH40R54U12.1W23 SNH40R54UHJ92NW23 SNH40R54UM3NW23 SNH40R54K2W23
SNH80R36E6.7W23 SNH80R36U8W23 SNH80R36U12.1W23 SNH80R36UHJ92NW23 SNH80R36UM3NW23 SNH80R36K2W23
SNH80R42E6.7W23 SNH80R42U8W23 SNH80R42U12.1W23 SNH80R42UHJ92NW23 SNH80R42UM3NW23 SNH80R42K2W23
SNH80R46E6.7W23 SNH80R46U8W23 SNH80R46U12.1W23 SNH80R46UHJ92NW23 SNH80R46UM3NW23 SNH80R46K2W23
SNH80R54E6.7W23 SNH80R54U8W23 SNH80R54U12.1W23 SNH80R54UHJ92NW23 SNH80R54UM3NW23 SNH80R54K2W23
SNH120R42E6.7W23 SNH120R42U8W23 SNH120R42U12.1W23 SNH120R42UHJ92NW23 SNH120R42UM3NW23 SNH120R42K2W23
SNH120R46E6.7W23 SNH120R46U8W23 SNH120R46U12.1W23 SNH120R46UHJ92NW23 SNH120R46UM3NW23 SNH120R46K2W23
SNH120R54E6.7W23 SNH120R54U8W23 SNH120R54U12.1W23 SNH120R54UHJ92NW23 SNH120R54UM3NW23 SNH120R54K2W23
SNH210R40E6.7W23 SNH210R40U8W23 SNH210R40U12.1W23 SNH210R40UHJ92NW23 SNH210R40UM3NW23 SNH210R40K2W23
SNH210R46E6.7W23 SNH210R46U8W23 SNH210R46U12.1W23 SNH210R46UHJ92NW23 SNH210R46UM3NW23 SNH210R46K2W23
SNH210R54E6.7W23 SNH210R54U8W23 SNH210R54U12.1W23 SNH210R54UHJ92NW23 SNH210R54UM3NW23 SNH210R54K2W23
SNH280R43E6.7W23 SNH280R43U8W23 SNH280R43U12.1W23 SNH280R43UHJ92NW23 SNH280R43UM3NW23 SNH280R43K2W23
SNH280R46E6.7W23 SNH280R46U8W23 SNH280R46U12.1W23 SNH280R46UHJ92NW23 SNH280R46UM3NW23 SNH280R46K2W23
SNH280R54E6.7W23 SNH280R54U8W23 SNH280R54U12.1W23 SNH280R54UHJ92NW23 SNH280R54UM3NW23 SNH280R54K2W23
SNH440R40E6.7W23 SNH440R40U8W23 SNH440R40U12.1W23 SNH440R40UHJ92NW23 SNH440R40UM3NW23 SNH440R40K2W23
SNH440R42E6.7W23 SNH440R42U8W23 SNH440R42U12.1W23 SNH440R42UHJ92NW23 SNH440R42UM3NW23 SNH440R42K2W23
SNH440R46E6.7W23 SNH440R46U8W23 SNH440R46U12.1W23 SNH440R46UHJ92NW23 SNH440R46UM3NW23 SNH440R46K2W23
SNH440R54E6.7W23 SNH440R54U8W23 SNH440R54U12.1W23 SNH440R54UHJ92NW23 SNH440R54UM3NW23 SNH440R54K2W23
SNH660R40E6.7W23 SNH660R40U8W23 SNH660R40U12.1W23 SNH660R40UHJ92NW23 SNH660R40UM3NW23 SNH660R40K2W23
SNH660R44E6.7W23 SNH660R44U8W23 SNH660R44U12.1W23 SNH660R44UHJ92NW23 SNH660R44UM3NW23 SNH660R44K2W23
SNH660R46E6.7W23 SNH660R46U8W23 SNH660R46U12.1W23 SNH660R46UHJ92NW23 SNH660R46UM3NW23 SNH660R46K2W23
SNH660R51E6.7W23 SNH660R51U8W23 SNH660R51U12.1W23 SNH660R51UHJ92NW23 SNH660R51UM3NW23 SNH660R51K2W23
SNH660R54E6.7W23 SNH660R54U8W23 SNH660R54U12.1W23 SNH660R54UHJ92NW23 SNH660R54UM3NW23 SNH660R54K2W23
SNH940R42E6.7W23 SNH940R42U8W23 SNH940R42U12.1W23 SNH940R42UHJ92NW23 SNH940R42UM3NW23 SNH940R42K2W23
SNH940R46E6.7W23 SNH940R46U8W23 SNH940R46U12.1W23 SNH940R46UHJ92NW23 SNH940R46UM3NW23 SNH940R46K2W23
SNH940R50E6.7W23 SNH940R50U8W23 SNH940R50U12.1W23 SNH940R50UHJ92NW23 SNH940R50UM3NW23 SNH940R50K2W23
SNH940R54E6.7W23 SNH940R54U8W23 SNH940R54U12.1W23 SNH940R54UHJ92NW23 SNH940R54UM3NW23 SNH940R54K2W23
