Hydraulic line repair data

Hitachi ZX450LC-3 Attachments Hose List

Coverage details

Hoses: 10 records
Full specifications: 10 records
Systems: 1 systems
Length range: 250–3,300 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 9

4635256

Installation route: 配重自卸手柄~蓄能器(配重自卸)

Length: 2,700 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. 12

4316023

Installation route: 先导泵~吸油铁管

Length: 480 mm
Specification: DN25;2SN-16;16.5MPa
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. 59

4655903

Installation route: 蓄能器~过渡阀块(分配阀)

Length: 850 mm
Specification: DN6;1SN-04;22.5MPa
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. 8

4454734

Installation route: 配重自卸手柄~过渡阀块(配重自卸)

Length: 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. 24

4667430

Installation route: 散热器下~铁管(散热器)

Length: 740 mm
Specification: DN19;2SN-12;21.5MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 16

4637942

Installation route: 风扇马达~

Length: 450 mm
Specification: DN19;2SN-12;21.5MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 10

4636859

Installation route: 铁管(液压泵)~铁管(散热器)

Length: 680 mm
Specification: DN19;2SN-12;21.5MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 5

4636854

Installation route: 先导滤芯~铁管(液压泵)

Length: 750 mm
Specification: DN25;2SN-16;16.5MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 18

4475912

Installation route: 中转接头~过渡阀块(流速切换)

Length: 2,900 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. 12

4614223

Installation route: 分配阀上左~过渡阀块(配重自卸)

Length: 3,300 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. 20

4282549

Installation route: 风扇马达~过渡阀块(风扇马达)

Length: 600 mm
Specification: DN12;1SN-8;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

4468265

Installation route: 辅助踏板~进回油阀

Length: 730 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 90°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. 21

4374495

Installation route: 配重自卸油缸~过渡阀块(配重自卸)

Length: 1,050 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: 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. 17

4623658

Installation route: 先导泵~控制阀(辅助)

Length: 1,000 mm
Specification: DN12;4SP-8;27.5MPa
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. 7

4667676

Installation route: 装载踏板~过渡阀块(装载踏板)

Length: 380 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 90°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. 19

9268882

Installation route: 分配阀左~过渡阀块(流速切换)

Length: 2,600 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. 11

4457107

Installation route: 配重自卸手柄~过渡阀块(配重自卸)

Length: 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. 18

9268883

Installation route: 中转接头~过渡阀块(流速切换)

Length: 2,900 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

4665948

Installation route: 过渡阀块(装载踏板)~

Length: 420 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. 31

4710441

Installation route: 大臂(辅助)~回油铁管(液压油箱)

Length: 2,400 mm
Specification: DN10;2SN-6;27.5MPa
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

4665948

Installation route: 装载踏板~过渡阀块(装载踏板)

Length: 420 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. 23

4389106

Installation route: 分配阀左~过渡阀块(配重自卸)

Length: 2,000 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: 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. 59

9265074

Installation route: 蓄能器~过渡阀块(分配阀)

Length: 850 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. 19A

4461271

Installation route: 分配阀左~过渡阀块(流速切换)

Length: 2,600 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. 24

4639651

Installation route: 散热器下~铁管(散热器)

Length: 700 mm
Specification: DN19;4SP-12;38Mpa
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. 22

4366744

Installation route: 过渡阀块右(分配阀)~过渡阀块前(分配阀)

Length: 300 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. 16

4427781

Installation route: 分配阀前~电磁阀

Length: 1,050 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 90°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. 11

4639212

Installation route: 配重自卸手柄~过渡阀块(配重自卸)

Length: 480 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 90°美制内螺纹37°内锥
Right fitting: 90°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 ZX450LC-3 Attachments?

There are 10 published records. 10 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX450LC-3 Attachments?

Based on published records with valid lengths, the range is 250–3,300 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX450LC-3 Attachments?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (3 records), DN19;2SN-12;21.5MPa (3 records), DN25;2SN-16;16.5MPa (2 records), DN10;1SN-06;18MPa (1 records), DN6;1SN-04;22.5MPa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX450LC-3 Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 4635256: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4316023: left American female thread, flat-face seal; right American female thread, flat-face seal; 4655903: left 美制内螺纹74°内锥; right 90°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 ZX450LC-3 Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 9 (4635256), Pipe No. 12 (4316023), Pipe No. 59 (4655903), Pipe No. 8 (4454734). Open a record to compare its installation position with the linked manual page.