Hydraulic line repair data

Hitachi ZX370 Attachments Hose List

Hitachi ZX370 Attachments currently has 7 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 7 records
Full specifications: 7 records
Systems: 1 systems
Length range: 350–1,000 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 17

4451995

Installation route: 液压泵~过渡阀块(先导泵)

Length: 350 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 13

4437944

Installation route: 进回油阀~电磁阀(进回油阀)

Length: 650 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 16

4442331

Installation route: 分配阀后~电磁阀

Length: 500 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 27

4452733

Installation route: 过渡阀块(分节大臂)~过渡阀块(分节大臂)

Length: 450 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 17

4313427

Installation route: 液压泵~控制阀(辅助)

Length: 1,000 mm
Specification: DN13;1SN-08;16MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 11

4323278

Installation route: 先导泵~吸油铁管

Length: 650 mm
Specification: DN19;1SN-12;7Mpa
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

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Diagram Pipe No. 20

4313427

Installation route: 先导泵~控制阀(辅助)

Length: 1,000 mm
Specification: DN13;1SN-08;16MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

How many hoses are currently listed for Hitachi ZX370 Attachments?

There are 7 published records. 7 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX370 Attachments?

Based on published records with valid lengths, the range is 350–1,000 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX370 Attachments?

The most frequent raw specifications in the current published records are: DN6;1SN-04;22.5MPa (3 records), DN13;1SN-08;16MPa (2 records), DN10;1SN-06;18MPa (1 records), DN19;1SN-12;7Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX370 Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 4451995: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4437944: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4442331: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi ZX370 Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 17 (4451995), Pipe No. 13 (4437944), Pipe No. 16 (4442331), Pipe No. 27 (4452733). Open a record to compare its installation position with the linked manual page.