Hydraulic line repair data

Hitachi ZX270LC-3 Attachments Hose List

Hitachi ZX270LC-3 Attachments currently has 11 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 11 records
Full specifications: 11 records
Systems: 1 systems
Length range: 350–2,150 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 17

4644618

Installation route: 先导泵~吸油铁管

Length: 480 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: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封

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Diagram Pipe No. 61

4678903

Installation route: 中转接头~接线板(隔板)

Length: 1,650 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. 50

4425357

Installation route: 回转马达~过渡阀块(流速切换)

Length: 1,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 0

4313253

Installation route: 过渡阀块(隔板)~过渡阀块(分配阀)

Length: 1,250 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 18

4285799

Installation route: 先导泵~控制阀(辅助)

Length: 750 mm
Specification: DN12;4SP-08;34.5Mpa
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

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Diagram Pipe No. 2

4437282

Installation route: 分配阀前~接线板(隔板)

Length: 550 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 40

4451995

Installation route: 控制阀(辅助)~过渡阀块(辅助)

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. 49

9263866

Installation route: 控制阀(辅助)~回油铁管(液压油箱)

Length: 2,150 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. 4A

4392192

Installation route: 过渡阀块(辅助)~过渡阀块(流速切换)

Length: 1,500 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 49A

4641744

Installation route: 控制阀(辅助)~回油铁管(液压油箱)

Length: 2,150 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. 57

4678902

Installation route: 中转接头~接线板(隔板)

Length: 1,600 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°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 ZX270LC-3 Attachments?

There are 11 published records. 11 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX270LC-3 Attachments?

Based on published records with valid lengths, the range is 350–2,150 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX270LC-3 Attachments?

The most frequent raw specifications in the current published records are: DN6;1SN-4;7Mpa (4 records), DN19;1SN-12;7Mpa (3 records), DN6;1SN-04;22.5MPa (2 records), DN10;1SN-6;7Mpa (1 records), DN12;4SP-08;34.5Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX270LC-3 Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 4644618: left American female thread, flat-face seal; right 90° elbow, American female thread, flat-face seal; 4678903: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4425357: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi ZX270LC-3 Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 17 (4644618), Pipe No. 61 (4678903), Pipe No. 50 (4425357), Pipe No. 0 (4313253). Open a record to compare its installation position with the linked manual page.