707-98-25520 7079825520 SERVICE KIT,BOOM SWING CYLINDER OF PC40-7 PC38UUM-2

1. Quick Details of  seal 707-98-25520:

2. 707-98-25520 parts on group :

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4. Service part number :

 
5. FAQ

Q: What road‑building construction machine does part number 707‑98‑25520 apply for cylinder overhaul service?
A: Part number 707‑98‑25520 cylinder seal kit is specially engineered for motor grader lift cylinder assembly maintenance and full overhaul service.

Q: What sealing performance can part number 707‑98‑25520 deliver for motor grader lift cylinder hydraulic circuit?
A: Part number 707‑98‑25520 cylinder seal kit sustains stable hydraulic pressure during grader blade lifting and lowering operations, reduces internal bypass loss under heavy road‑scraping load, and prevents abrasive road gravel dust and muddy slush from entering cylinder chamber to safeguard piston and rod sliding surfaces.

Q: What raw materials constitute this lift cylinder seal kit?
A: Dynamic rod seals adopt high‑elongation PU polyurethane, static sealing O‑rings use heat‑resistant FKM fluoro‑rubber, and PTFE torsion‑resistant backup rings withstand twisting side force and avoid seal squeeze damage under frequent pressure fluctuation.

Q: What color features do these sealing spare parts have?
A: PU sealing elements are matte jet‑black, FKM rubber fittings are dark brown‑black, PTFE buffer‑resistant backup rings are light ivory‑white.

Q: What color appearance do these sealing spare parts feature?
A: PU sealing elements are deep dark‑black, HNBR rubber fittings are glossy jet‑black, PTFE pressure‑resistant backup rings are light ivory‑white.

Q: Can this product prevent hydraulic oil leakage effectively?
A: The precise size design effectively reduces internal leakage and external oil seepage.

Q: What construction scenarios often require this arm cylinder seal kit for regular maintenance?
A: It is widely used for maintaining mini excavators working on villa foundation projects, landscape engineering, pipeline trenching and rural road reconstruction.

6. Exhibition and Wearhous

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