Individual hose record

397-8257 Hose Repair Specifications

Excavator · Caterpillar · CAT®312D L · Hydraulic Pump

Finished length560 mm

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Installation diagram — Pipe No. 9

Locate Pipe No. 9 in the diagram, then confirm part number 397-8257 before removing the hose.

Part number: 397-8257
Diagram pipe number: 9
Installation route: 液压泵~液压泵吸油铁管
Hose specification: DN25;1SN-16;7Mpa
Finished length: 560 mm
Working pressure: 7 MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Quantity: 1

Same system

Diagram Pipe No. 5

Installation route: 液压泵~液压油过滤器

Length: 610 mm
Specification: DN19;1SN-12;8.7Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封

Diagram Pipe No. 9

Installation route: 液压泵~液压油箱

Length: 960 mm
Specification: DN10;1SN-6;10.4Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

Diagram Pipe No. 4

Installation route: 液压泵~液压泵吸油铁管

Length: 650 mm
Specification: DN25;1SN-16;7Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

For reference only. Confirm the actual hose before fabrication.