Individual hose record

121-8659 Hose Repair Specifications

Excavator · Caterpillar · CAT®312F · Grease Lines

Finished length2,000 mm

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Installation diagram — Pipe No. 3

Locate Pipe No. 3 in the diagram, then confirm part number 121-8659 before removing the hose.

Caterpillar CAT®312F installation diagram showing hydraulic hose 121-8659 at Pipe No. 3
Caterpillar CAT®312FPart 121-8659 · Pipe No. 3Open full-size diagram

Repair specifications

Part number
121-8659
Diagram pipe number
3
Installation route
Right boom-cylinder grease lineOriginal Chinese: 右大臂油缸黄油管
Hose specification
DN6;-4;10.3Mpa
Finished length
2,000 mm
Working pressure
10.3 MPa
Left fitting
美制锥形外螺纹30°内锥
Right fitting
美制锥形外螺纹
Quantity
1

Same system

Related Hoses

Diagram Pipe No. 4

121-8662

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length
2,650 mm
Specification
DN6;-4;10.3Mpa
Left fitting
美制锥形外螺纹
Right fitting
美制锥形外螺纹30°内锥
View full repair specifications

Diagram Pipe No. 2

121-8659

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length
2,000 mm
Specification
DN6;-4;10.3Mpa
Left fitting
美制锥形外螺纹30°内锥
Right fitting
美制锥形外螺纹
View full repair specifications

Diagram Pipe No. 2

203-7400

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length
1,900 mm
Specification
DN6;-4;10.3Mpa
Left fitting
美制锥形外螺纹30°内锥
Right fitting
美制锥形外螺纹
View full repair specifications

Diagram Pipe No. 7

203-7401

Installation route: Left boom-cylinder grease lineOriginal Chinese: 左大臂油缸黄油管

Length
2,100 mm
Specification
DN6;-4;10.3Mpa
Left fitting
美制锥形外螺纹30°内锥
Right fitting
美制锥形外螺纹
View full repair specifications

For reference only. Confirm the actual hose before fabrication.

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