Just like other stone crusher machines, jaw crusher also needs a regular repair and maintenance after a certain time of working, or it will get decreased service life because of severe wear of important parts.
So many customers have common misconception that jaw plates only need repair when appearing flat, holes, cracks. Actually if jaw plates wears badly, it is not only hard to repair but seriously affects the normal working of other parts, which then will take a great sum of money to change a jaw plate and maintain other parts.
The pitman drives the moveable jaw dies to push stone material towards stationary jaws, which would create strong pressing forces to both jaw dies. Therefore, if the pitman cannot get lubrication in time, it will be broken under the high pressure of material and interrupt the whole work.
Proper plan and preparation make the whole repair and maintenance ordered and effective, which helps operators save time, cost, and enhance their safety. You can make a checklist just like the following chart in which you can list need-checked jaw crusher parts with a different period then making a mark if you are done with them. This not only prevents missed inspections, but also makes the arrangement clear, and saves a lot of time.
The lubrication of the interface between the parts of the jaw crusher is very important. It can minimize the friction generated during the operation, make the whole jaw crusher run smoothly, and extend its service life.
Unlike gyratory crushers, the main lubrication used in jaw crushers is grease instead of oil. When using grease, there may be several different ways to inject it into the necessary lubrication points. It can be operated manually with a grease gun, an oiler or metering pump.
Eccentric shaft (pitman bearing): It is behind the moveable jaw plate, and together with flywheel with toggle plate to create a motion. So, the most important thing you must do is keeping a regular lubrication to eccentric shaft, or you will spend more than four hours in changing a new one when it is broken.
Main shaft To keep the main shaft in good lubricating situation, you need to guarantee enough geese between thrust plate.The grease added to the bearing box needs to occupy about 50% of its space and be replaced every 3-6 months. When changing the engine oil, please use clean gasoline or kerosene to clean the roller bearing raceways.
There are different jaw plates material in the market, and some of them suits for hard stone while other is not. Therefore, you have to choose the right jaw plate for your crusher. For example, generally the jaw plate of single toggle jaw crusher is not good at crushing strongly abrasive and hard stone material with large production.
The function of toggle plate is to adjust the outlet of the jaw crusher to the desired size. There are two specific methods: one is to replace the support pad between the toggle plate and the body frame, and the other is to adjust the two wedges between the toggle and the body frame.
Fote Company has more than 40-year manufacturing experience, mainly engineering different types of jaw crushers including PE jaw crusher, Dodge jaw crusher, Blake type jaw crusher(double toggle jaw crushers), single toggle jaw cruhser, etc., and all of them can be customized.
As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.
Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.
In other words, no formal root cause analysis is performed. The maintenance technician guesses at an answer and tries a fix. If the problem goes away (at least temporarily), the root cause has been discovered. If it does not go away, guess again!
This application of guessing as the primary tool for root cause analysis of equipment reliability and maintenance problems is probably the biggest challenge to achieving equipment reliability excellence.
One of the first problems I observed in helping maintenance professionals find root causes was that they didnt have the knowledge they needed to start finding root causes. They were trying to find root causes BEFORE they completed troubleshooting the problem.
Troubleshooting is trying to discover the physical or equipment cause of the failure. For example, if a pump is producing less than the rated flow, we might want to know why. If we discover that the impellor on a double volute pump was installed backward, we have completed the troubleshooting of the problem. We can reinstall the impellor and the problem will be solved. But we havent found the root cause of the failure.
But that Causal Factor is just the start of the root cause analysis. We need to take that Causal Factor through the Root Cause Tree Diagram to find the root cause (or more likely, root causes) of the error.
The information gained during the troubleshooting is added to a SnapCharT Diagram that displays what happened. Using the SnapCharT Diagram is also taught on Day 1. An example of an equipment failure related SnapCharT is shown below
How do you find the root causes of the mechanic installing the impeller backward? Thats a topic covered in the 2-Day Equifactor Troubleshooting and TapRooT Root Cause Analysis Courseon Day 2 when the TapRooT Root Cause Tree is taught.
What is the registration fee? $1,425 for the course. But you can save $200 by registering for the 2020 Global TapRooT Summit and the course at the same time. The cost of attending the course and the Summit is only $2320. CLICK HERE to register for both.
Why should you attend the 2020 Global TapRooT Summit? To learn best practices and network with people attending the Achieving Excellence and Reliability Track. What are the session is this track? Here a list: