How to solve the problem of oil leakage from the upper and lower joint surfaces of the RV50-10-0.25KW reducer box

‌Oil leakage occurs on the upper and lower joint surfaces of the RV50-10-0.25KW reducer case‌. The core is static seal failure, which is common in uneven joint surfaces, improper bolt tightening or sealant failure. Here are the systemic solutions:

1. ‌Prioritization and processing steps‌

‌1. Check and tighten the bolts‌

Tighten the connecting bolts of the upper and lower boxes evenly in diagonal order and step by step to prevent the joint surface from warping due to force on one side.

Refer to the "standard torque value" specified in the equipment manual for retightening. Do not blindly apply force to prevent the seal from being crushed or the box deformed.

‌2. Clean the joint surface and replace the sealing material‌

Disassemble the joint surface (if necessary), thoroughly remove the old sealant, oil and residue, clean and dry with absolute ethanol.

Re-apply anaerobic flat sealant (such as Loctite 515) and apply glue evenly along the inside of the bolt hole. The thickness should be controlled at 0.2~0.5mm to prevent glue from flowing into the inside of the box.

3‌. Check the flatness of the joint surface‌

Use a standard flat plate or knife-edge ruler to check the flatness of the upper and lower box joint surfaces, and the required error is ≤0.05mm/m.

If there are scratches, dents or deformations, they need to be repaired by scraping or machining to ensure a tight fit.

2. ‌Advanced treatment plan (emergency treatment without disassembly)‌

If the equipment cannot be shut down or is difficult to disassemble, ‌polymer composite materials‌ can be used for online management:

1. Use a polymer material such as Belzona and apply it directly on the clean and dry leakage area.

2. The material has excellent ductility and bonding strength, and can deform without falling off as the equipment vibrates, achieving "disassembly-free sealing of leakage".

3. Suitable for minor oil leakage scenarios, but it is still recommended to shut down and repair completely for long-term operation.