Individual hose record

4I-3988 Hose Repair Specifications

Excavator · Caterpillar · CAT®312D · Control Lever

Finished length2,250 mm

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Installation diagram — Pipe No. 3

Locate Pipe No. 3 in the diagram, then confirm part number 4I-3988 before removing the hose.

Part number: 4I-3988
Diagram pipe number: 3
Installation route: 中转接头~分配阀上右
Hose specification: DN10;1SN-6;10.4Mpa
Finished length: 2,250 mm
Working pressure: 10.4 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. 11

Installation route: 中转接头~模式转换阀

Length: 520 mm
Specification: DN10;-6;10.3Mpa
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. 16

Installation route: 中转接头~分配阀下右

Length: 1,400 mm
Specification: DN10;1SN-6;10.4Mpa
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. 11

Installation route: 中转接头~模式转换阀

Length: 540 mm
Specification: DN10;1SN-6;10.4Mpa
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. 18

Installation route: 中转接头~分配阀上左

Length: 2,050 mm
Specification: DN10;-6;10.3Mpa
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. 17

Installation route: 中转接头~分配阀上左

Length: 1,700 mm
Specification: DN10;1SN-6;10.4Mpa
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.