Individual hose record

123-2744 Hose Repair Specifications

Excavator · Caterpillar · CAT®311B · Boom Assembly

Finished length680 mm

Locate this hose

Installation diagram — Pipe No. 5

Locate Pipe No. 5 in the diagram, then confirm part number 123-2744 before removing the hose.

Caterpillar CAT®311B installation diagram showing hydraulic hose 123-2744 at Pipe No. 5
Caterpillar CAT®311BPart 123-2744 · Pipe No. 5Open full-size diagram

Repair specifications

Part number
123-2744
Diagram pipe number
5
Installation route
小臂油缸
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
2

Same system

Related Hoses

Diagram Pipe No. 3

123-2636

Installation route: 大臂油缸

Length
760 mm
Specification
DN16;6SH-10;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
View full repair specifications

Diagram Pipe No. 4

123-2735

Installation route: 小臂左3

Length
950 mm
Specification
DN16;6SH-10;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
View full repair specifications

Diagram Pipe No. 2

124-0841

Installation route: 铲斗油缸左(长臂)

Length
1,500 mm
Specification
DN16;6SH-10;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
View full repair specifications

Diagram Pipe No. 1

124-0868

Installation route: 大臂油缸

Length
722 mm
Specification
DN16;1SN-10;10.5Mpa
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
View full repair specifications

Diagram Pipe No. 8

146-7060

Installation route: 小臂左4

Length
940 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
View full repair specifications

Diagram Pipe No. 20

129-6078

Installation route: 小臂左1

Length
910 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
View full repair specifications

Diagram Pipe No. 21

139-1796

Installation route: 小臂左2

Length
910 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
View full repair specifications

For reference only. Confirm the actual hose before fabrication.

Scroll to Top