321-7048 3217048 Wholesale High-Quality Hot-Selling D6M D6N

1. Quick Details of  seal 321-7048:

2.  321-7048 picture:

3. Service part number :

4. FAQ

Q: Do we need to apply sealant during assembly?
A: No extra sealant is required. It may block oil passages and cause unexpected hydraulic failures.

Q: What if a seal gets damaged while installing?
A: Replace it with a new one at once. Even tiny damage will lead to continuous oil leakage later.

Q: How to judge if the seals need replacement?
A: If you see oil seepage around the rod, or the cylinder moves sluggishly, the seals have worn out and need to be changed.

Q: Can I use cheap replacement seal kits?
A: It is not suggested. Inferior parts fail quickly under high pressure and increase frequent maintenance work.

Q: How to keep spare seals well preserved?
A: Store them flat in cool and dry places. Avoid sunlight, oil liquid and sharp items to prevent deformation.

Q: Why replace the whole kit instead of single parts?
A: All seals wear at similar speeds. Partial replacement will cause unbalanced sealing and new leaks soon.

Q: Any tips for tightening cylinder bolts?
A: Tighten all bolts evenly per standard torque. Uneven force will squeeze the seals and shorten their service life.

5. Exhibition and Wearhous

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