7T-8004 7T8004 404.39 mm outer diameter inner retaining ring of D9N D9 D9 GC

1. Quick Details of  seal 7T-8004:

2. 7T-8004 picture:

3.Service part number:

4.FAQ

Q: What kind of construction machine does part number 7T-8004 fit on?
A: Part number 7T-8004 piston seal ring is manufactured for bulldozer hydraulic lift cylinder.

Q: Please tell me the part name and classification of spare part 7T-8004.
A: The part name of 7T-8004 is piston seal ring and it belongs to piston seal ring category.

Q: What material is used to produce this piston seal ring?
A: It is high grade cast iron with good anti-abrasion property and stable mechanical performance.

Q: What is the main sealing function of this component inside hydraulic cylinder?
A: It blocks internal hydraulic oil leakage so the piston can keep steady pushing force for blade lifting.

Q: Where is this piston seal ring installed on the bulldozer hydraulic assembly?
A: It is fitted into the annular groove on the piston of bulldozer blade lift cylinder.

Q: What pressure range can this cast iron seal ring withstand in daily operation?
A: It can sustain high hydraulic pressure during heavy pushing and dozing work continuously.

Q: What point needs extra attention during installation of this seal ring?
A: Prevent sharp edges on piston groove from scratching the outer surface of the cast iron ring.

Q: What visible problem will happen if this piston seal ring gets worn?
A: The bulldozer blade will drop down when stationary and the lifting power will decline.

5. Exhibition and Wearhous

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