Individual hose record

155-6478 Hose Repair Specifications

Excavator · Caterpillar · CAT®M312 · Attachments

Finished length7,700 mm

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Installation diagram — Pipe No. 7

Locate Pipe No. 7 in the diagram, then confirm part number 155-6478 before removing the hose.

Caterpillar CAT®M312 installation diagram showing hydraulic hose 155-6478 at Pipe No. 7 — **Caterpillar CAT®M312**Part 155-6478 · Pipe No. 7Open full-size diagram

Repair specifications

Part number: 155-6478
Diagram pipe number: 7
Installation route: 大臂(前段)~大臂(后段)
Hose specification: DN10;2SN-6;33Mpa
Finished length: 7,700 mm
Working pressure: 33 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. 8

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Installation route: 分配阀~大臂(中段)

Length: 5,800 mm
Specification: DN10;2SN-6;33Mpa
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. 6

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Installation route: 推土铲油缸~电磁阀(推土铲油缸)

Length: 500 mm
Specification: DN10;2SN-6;33Mpa
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. 1

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Installation route: 推土铲油缸~铁管(大臂下)

Length: 800 mm
Specification: DN10;2SN-6;33Mpa
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. 12

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Installation route: 蓄能器电磁阀(驾驶室升降架下)~大臂(前段)

Length: 5,000 mm
Specification: DN10;2SN-6;33Mpa
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. 5

138-1904

Installation route: 推土铲油缸~铁管(大臂下)

Length: 800 mm
Specification: DN10;2SN-6;33Mpa
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. 7

139-1941

Installation route: 电磁阀(推土铲油缸)~铁管(大臂下)

Length: 650 mm
Specification: DN10;2SN-6;33Mpa
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. 5

179-5694

Installation route: 分配阀~大臂(前段)

Length: 6,950 mm
Specification: DN10;2SN-6;33Mpa
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

145-4969

Installation route: 蓄能器电磁阀(驾驶室升降架下)~大臂(前段)

Length: 2,500 mm
Specification: DN10;2SN-6;33Mpa
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.