When a Siemens reducer leaks oil, you can perform maintenance according to the following steps:
1. Determine the oil leakage position
Carefully observe the reducer shell and find the source of the oil trace. Common oil leakage areas include oil seals, end cap joint surfaces, oil drain screw plugs, oil marking holes, etc.
2. Analyze the causes of oil leakage
Oil seal aging or damage: After long-term use, the rubber material of the oil seal will gradually age and harden, lose its elasticity, resulting in a degradation of sealing performance. Or during installation, damage to the oil seal can also cause oil leakage.
The end cap joint surface is uneven: During operation of the reducer, due to vibration, thermal expansion and contraction, the bolts on the end cap joint surface may loosen, causing gaps in the joint surface, resulting in oil leakage. In addition, there is a plane degree error in the bonding surface during processing, which will also affect the sealing effect.
Loose or damaged oil drain plug: The oil drain plug is not tightened or the thread of the screw plug is damaged, which will cause oil to seep out of the screw plug.
Poor sealing of oil mark holes: The sealing gasket of the oil mark hole is damaged or improperly installed, which will cause oil to leak from the oil mark hole.
Cracked in the box: The reducer has a large load for a long time or is impacted by external forces, which may cause cracks in the box and oil will seep out of the cracks.
3. Develop a mainten
When a Siemens reducer leaks oil, you can perform maintenance according to the following steps:
1. Determine the oil leakage position
Carefully observe the reducer shell and find the source of the oil trace. Common oil leakage areas include oil seals, end cap joint surfaces, oil drain screw plugs, oil marking holes, etc.
2. Analyze the causes of oil leakage
Oil seal aging or damage: After long-term use, the rubber material of the oil seal will gradually age and harden, lose its elasticity, resulting in a degradation of sealing performance. Or during installation, damage to the oil seal can also cause oil leakage.
The end cap joint surface is uneven: During operation of the reducer, due to vibration, thermal expansion and contraction, the bolts on the end cap joint surface may loosen, causing gaps in the joint surface, resulting in oil leakage. In addition, there is a plane degree error in the bonding surface during processing, which will also affect the sealing effect.
Loose or damaged oil drain plug: The oil drain plug is not tightened or the thread of the screw plug is damaged, which will cause oil to seep out of the screw plug.
Poor sealing of oil mark holes: The sealing gasket of the oil mark hole is damaged or improperly installed, which will cause oil to leak from the oil mark hole.
Cracked in the box: The reducer has a large load for a long time or is impacted by external forces, which may cause cracks in the box and oil will seep out of the cracks.
3. Develop a maintenance plan
Replace the oil seal: If it is determined that it is an oil seal problem, the oil in the reducer needs to be discharged cleanly, then remove the relevant parts, remove the old oil seal, and replace it with a new oil seal. During installation, make sure the oil seal is installed in place to avoid damage to the oil seal lip.
Repair the end cap joint surface: If the end cap joint surface is uneven, clean the joint surface first to remove impurities such as oil stains, rust and other impurities. If the plane error of the bonding surface is small, it can be repaired by grinding; if the error is large, the bonding surface needs to be reprocessed to achieve the specified plane degree requirements. After repair, replace the new gasket and tighten the end cap bolts evenly.
Treat oil drain screw plug: Check whether the thread of the oil drain plug is damaged. If there is any damage, a new screw plug needs to be replaced. During installation, apply an appropriate amount of sealant to the threads of the screw plug, and then tighten the screw plug to ensure a good seal.
Repair oil marking holes: Replace the sealing gasket of the oil marking holes to ensure that the gasket is installed smoothly and without twisting or deformation. If the threads of the oil mark hole are damaged, repair or replacement is also required.
Repairing box cracks: For cracks on the box, welding can be used for repair. Before welding, clean the cracks first, and then select the appropriate welding rod and welding process according to the material of the box. After welding, the welding parts must be polished and trimmed to make the surface flat, and a leakage test should be carried out to ensure that there is no oil leakage in the cracks.
4. Carry out maintenance operations
According to the formulated maintenance plan, prepare the required tools and materials, such as wrenches, screwdrivers, oil seals, gaskets, welding rods, grinding tools, etc. During the maintenance process, we must strictly follow the operating procedures to ensure the quality of the maintenance.
5. Inspection and testing after maintenance
After the maintenance is completed, add an appropriate amount of lubricating oil to the reducer, then start the reducer to observe whether there is any oil leakage in each part. At the same time, check whether the operating sound, temperature, etc. of the reducer are normal. If there is any abnormality, the machine must be shut down and checked in time, find out the cause and deal with it.
