Individual hose record

277-1251 Hose Repair Specifications

Excavator · Caterpillar · CAT®312D2 · Attachments – Quick Coupler

Finished length1,400 mm

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Installation diagram — Pipe No. 2

Locate Pipe No. 2 in the diagram, then confirm part number 277-1251 before removing the hose.

Caterpillar CAT®312D2 installation diagram showing hydraulic hose 277-1251 at Pipe No. 2
Caterpillar CAT®312D2Part 277-1251 · Pipe No. 2Open full-size diagram

Repair specifications

Part number
277-1251
Diagram pipe number
2
Installation route
大臂(快换)~小臂(快换)
Hose specification
DN13;6SH-8;42Mpa
Finished length
1,400 mm
Working pressure
42 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. 25

486-0122

Installation route: 大臂(快换)~快速联轴阀(液压油箱后上)

Length
2,190 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
View full repair specifications

Diagram Pipe No. 26

486-0125

Installation route: 大臂(快换)~快速联轴阀(液压油箱后上)

Length
2,250 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
View full repair specifications

Diagram Pipe No. 16

337-1286

Installation route: 大臂(快换)~压力传感器(分配阀前)

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
View full repair specifications

Diagram Pipe No. 1

177-8506

Installation route: 大臂(快换)~小臂(快换)

Length
1,800 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
View full repair specifications

For reference only. Confirm the actual hose before fabrication.

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