Gear pump common fault and maintenance methods
(1) Symptom: Pump can not discharge Failure reasons: a, the opposite direction of rotation; b, suction or discharge valve is closed; c, no inlet or pressure is too low; d, viscosity is too high, the pump can not bite material Countermeasures: a, confirm the direction of rotation; b, confirm whether the valve is closed; c, check the valve and pressure gauge; d, check the liquid viscosity to low-speed operation by the speed ratio of the flow rate is there, (2) Symptom: Insufficient pump flow Failure reasons: a, suction or discharge valve is closed; b, the inlet pressure is low; c, the outlet pipe plugging; d, packing box leakage; e, low speed Countermeasures: a, confirm whether the valve is closed; b, check the valve is open; c, confirm the discharge volume is normal; d, tighten; a large number of leaks affect production, should stop running, disassembly inspection; ; (3) Symptom: abnormal sound Failure reasons: a, coupling eccentric or poor lubrication b, motor failure; c, reducer abnormalities; d, shaft seal at the installation of bad; e, shaft deformation or wear Countermeasures: a, find or fill grease; b, check the motor; c, check the bearings and gears; d, check the shaft seal; e, parking disintegration inspection (4) Symptom: the current is too large Failure reasons: a, the outlet pressure is too high; b, melt viscosity is too large; c, shaft seal assembly bad; d, shaft or bearing wear; e, motor failure Countermeasures: a, check the downstream equipment and pipelines; b, test viscosity; c, check the shaft seal, appropriate adjustments; d, check after parking, hand crank car is too heavy; (5) Symptom: Pump suddenly stopped Failure reasons: a, power failure; b, motor overload protection; c, coupling damage; d, the outlet pressure is too high, interlocking reaction; e, abnormal bite into the pump; f, shaft and bearing stuck stuck Countermeasures: a, check the power; b, check the motor; c, open the safety cover, disk inspection; d, check the instrument interlock system; e, after parking, reversing confirmation; f,
30mm Dovetail Scope Rings are a specific type of dovetail mounting system designed to accommodate rifle scopes with a 30mm main tube diameter. These rings feature a dovetail design that slides into a corresponding dovetail-shaped groove on the firearm's receiver or rail system. The 30mm measurement refers to the internal diameter of the scope rings, which is the size of the scope tube they are designed to hold securely.
As with other dovetail scope rings, 30mm Dovetail Scope Rings offer certain advantages, such as:
Low profile: The dovetail design provides a streamlined and low-profile setup, which can be aesthetically pleasing and reduce the overall bulk of the firearm.
Secure fit: The interlocking design of the dovetail system ensures a stable and secure connection between the scope and the firearm, minimizing the chance of the scope shifting during use.
Easy installation and removal: Dovetail scope rings can be easily installed or removed, making it simple to adjust, maintain, or swap scopes between firearms.
However, it is essential to note that 30mm Dovetail Scope Rings are designed specifically for scopes with a 30mm main tube diameter, and they may not be compatible with scopes of other sizes. Additionally, dovetail mounting systems may not be as versatile as other systems like Picatinny or Weaver rails, which can offer more mounting options and are compatible with a wider range of accessories.
Optics Mounts, Rifle Scopes Accesspries Guangzhou Miaozhun Jie Trade Co.,Ltd. , https://www.focuhunter.shop