Individual hose record

142-7439 Hose Repair Specifications

Excavator · Caterpillar · CAT®M312 · Boom Assembly

Finished length680 mm

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Installation diagram — Pipe No. 9

Locate Pipe No. 9 in the diagram, then confirm part number 142-7439 before removing the hose.

Part number: 142-7439
Diagram pipe number: 9
Installation route: 分节油缸右(前段)
Hose specification: DN19;4SP-12;35Mpa
Finished length: 680 mm
Working pressure: 35 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. 6

Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左

Length: 1,045 mm
Specification: DN19;4SP-12;35Mpa
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. 8

Installation route: 铲斗油缸~分流阀(小臂)

Length: 1,020 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

Diagram Pipe No. 26

Installation route: 大臂(中段)~大臂(后段)

Length: 5,000 mm
Specification: DN19;4SP-12;35Mpa
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. 23

Installation route: 大臂左2(分节油缸规格)

Length: 4,920 mm
Specification: DN19;4SP-12;35Mpa
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. 15

Installation route: 大臂左1/左4(分节油缸规格)

Length: 3,950 mm
Specification: DN19;4SP-12;35Mpa
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.