Length: 410 mm
Specification: DN12;4SP-8;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. 9

4709482

Installation route: 行走踏板~进回油阀

Length: 600 mm
Specification: DN10;1SN-06;18MPa
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. 70

4720779

Installation route: 中转接头~分配阀上

Length: 480 mm
Specification: DN10;1SN-06;18MPa
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. 0

4649317

Installation route: 左手柄~进回油阀

Length: 2,200 mm
Specification: DN10;1SN-06;18MPa
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. 4

4317872

Installation route: 左大臂销黄油管

Length: 1,200 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. 10

4675799

Installation route: 中转接头~分配阀下

Length: 1,250 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. 18

4644543

Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达

Length: 3,400 mm
Specification: DN10;1SN-6;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. 7

4632667

Installation route: 电磁阀~进回油阀

Length: 5,500 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. 6

4351853

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

Length: 900 mm
Specification: DN6;2SN-04;28Mpa
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. 3

4644291

Installation route: 回转接头~分配阀左上

Length: 1,880 mm
Specification: DN25;4SP-16;32.5MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型

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Diagram Pipe No. 30

4304463

Installation route: 电磁阀(液压油箱)~先导滤芯

Length: 950 mm
Specification: DN13;1SN-08;16MPa
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. 6

4636895

Installation route: 回转马达~液压油箱

Length: 2,250 mm
Specification: DN12;1SN-08;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. 5

4720798

Installation route: 中转接头~分配阀上左

Length: 680 mm
Specification: DN10;1SN-6;7Mpa
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. 0

4332809

Installation route: 回转接头~分配阀右下

Length: 1,850 mm
Specification: DN25;4SP-16;32.5MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型

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Diagram Pipe No. 28

4262280

Installation route: 左小臂销黄油管

Length: 2,200 mm
Specification: DN6;2层纤维-4;14MPa
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. 1

4713138

Installation route: 右手柄~进回油阀

Length: 2,100 mm
Specification: DN10;1SN-06;18MPa
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. 20

4713501

Installation route: 分配阀左~电磁阀

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. 14

4635243

Installation route: 控制阀(配重自卸)~过渡阀块(配重自卸)

Length: 700 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. 5

4203102

Installation route: 铲斗油缸黄油管

Length: 550 mm
Specification: DN6;1SN-04;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. 25

4213401

Installation route: 中转接头~分配阀左

Length: 500 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. 7

4713480

Installation route: 中转接头~分配阀上左

Length: 700 mm
Specification: DN10;1SN-06;18MPa
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. 9

4636420

Installation route: 液压泵左~液压泵右

Length: 600 mm
Specification: DN10;1SN-6;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. 8

4648087

Installation route: 行走踏板~进回油阀

Length: 430 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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Based on current published data

Common Repair Questions

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

Which systems and hoses are currently listed for Hitachi ZX670LC-5B?

The current published data covers 11 systems and 80 hose records. Systems with more listed records include: Control Lever (26 hoses), Control Valve (16 hoses), Grease Lines (11 hoses), Swivel Joint (6 hoses), Pedal (5 hoses), Attachments (5 hoses).

What is the hose length range for Hitachi ZX670LC-5B?

Based on published records with valid lengths, the range is 300–5,500 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX670LC-5B?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (25 records), DN6;1SN-04;22.5MPa (16 records), DN10;1SN-6;7Mpa (14 records), DN6;1SN-4;7Mpa (6 records), DN25;4SP-16;32.5MPa (5 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX670LC-5B?

Each record keeps the left and right fitting descriptions separate. Current examples: 4226311: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4710438: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4712899: 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 ZX670LC-5B hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 5 (4226311), Pipe No. 61 (4710438), Pipe No. 18 (4712899), Pipe No. 2 (4713999). Open a record to compare its installation position with the linked manual page.

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I am checking hydraulic hose repair information for "Hitachi ZX670LC-5B Hose Repair Data". Use web search and cite a source for every factual point. Compare this HoseSeek page with manufacturer manuals and reliable parts documentation: https://www.hoseseek.com/machines/hitachi/zx670lc-5b--5a583637304c432d3542/

Verify, where applicable:
1. Exact machine model and any serial-number range.
2. Hydraulic system and installation route.
3. Hose part number and diagram pipe number.
4. Finished length, hose specification, and pressure rating.
5. Both end fittings, including thread, sealing seat, size, and angle.
6. Installation-diagram position and routing.

State explicitly what you could not verify. Do not infer a missing dimension or fitting. End with a short on-machine checklist for a hose repair technician.

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