Maintenance on heavy machinery requires following proper practices and procedures to implement repairs to equipment. Often times maintenance turns to welding over the top of the crack—which is comparable to throwing a Band-Aid on a deep cut that actually needs stitches: it’s not a sustainable, long-term fix. Therefore, General Kinematics wants to help teach the proper procedure for repairing a crack on a vibratory piece of equipment.
Here are the central step-by-step points for how to repair a crack while also ensuring welding best practices.
The first step to take in this process is troubleshooting possible causes that have lead to a crack. Check for possible upset conditions or buildup of material that has caused an over stroke condition on your machine. Once that is identified, implementing the proper techniques and solutions to solve this issue is key. After that is completed repair of the crack may begin.
For starters, a crack cannot be fixed by just filling it in.
“You need to properly prepare the welds and remove the crack,” said Joel Jacobson, Director of Manufacturing at General Kinematics, pointing to an example of customer’s attempt to fix a piece of steel.
“When a customer welds over the top of the crack, you can see from the cross-section view that the crack is still there.”
Here’s the proper procedure for repairing a crack:
Also, do not weld at the end of the fishplate, as this will cause an abrupt change in the cross section of the steel and will not allow the forces to travel down the length of the machine as intended.
There you have it, crack repair complete!
Using welding best practices are important for both the longevity and functionality of your vibratory machinery.
If you have any questions, please contact General Kinematics customer service. We are happy to help.