Individual hose record

443-8311 Hose Repair Specifications

Excavator · Caterpillar · CAT®312E L · Attachments – Quick Coupler

Finished length5,980 mm

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Installation diagram — Pipe No. 6

Locate Pipe No. 6 in the diagram, then confirm part number 443-8311 before removing the hose.

Caterpillar CAT®312E L installation diagram showing hydraulic hose 443-8311 at Pipe No. 6 — **Caterpillar CAT®312E L**Part 443-8311 · Pipe No. 6Open full-size diagram

Repair specifications

Part number: 443-8311
Diagram pipe number: 6
Installation route: 大臂(前段)~小臂
Hose specification: DN6;2SN-4;40Mpa
Finished length: 5,980 mm
Working pressure: 40 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: 2

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Diagram Pipe No. 9

344-6276

Installation route: 大臂(前段)~小臂

Length: 6,260 mm
Specification: DN10;6SH-6;42Mpa
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

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Diagram Pipe No. 14

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Installation route: 大臂(快换)~电磁阀(液压泵上)

Length: 2,260 mm
Specification: DN6;2SN-4;40Mpa
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

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Diagram Pipe No. 4

087-5760

Installation route: 电磁阀(液压泵上)~吸油铁管

Length: 1,030 mm
Specification: DN10;-6;10.3Mpa
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

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Diagram Pipe No. 2

382-7079

Installation route: 大臂(快换)~小臂(快换)

Length: 1,580 mm
Specification: DN13;6SH-8;42Mpa
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

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Diagram Pipe No. 19

462-5211

Installation route: 大臂(快换)~电磁阀(液压泵上)

Length: 2,140 mm
Specification: DN10;6SH-6;42Mpa
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

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Diagram Pipe No. 20

462-5214

Installation route: 大臂(快换)~电磁阀(液压泵上)

Length: 2,160 mm
Specification: DN10;6SH-6;42Mpa
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

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Diagram Pipe No. 11

337-1286

Installation route: 分配阀前右~铁管(大臂)

Length: 860 mm
Specification: DN19;6SH-12;42Mpa
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

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Diagram Pipe No. 15

358-7418

Installation route: 大臂(快换)~电磁阀(液压泵上)

Length: 2,320 mm
Specification: DN6;2SN-4;40Mpa
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

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For reference only. Confirm the actual hose before fabrication.