Hydraulic line repair data

Hitachi ZX270LC Hose Repair Data

Hitachi ZX270LC currently has 86 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 86 records
Full specifications: 86 records
Systems: 16 systems
Length range: 400–6,680 mm

Hose repair details

Hose Length and Fitting List

Showing 36 representative records. Return to the finder for a more specific search.

Diagram Pipe No. 15A

4313443

Installation route: 回转接头~回油铁管(液压油箱)

Length: 2,500 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. 13

4459263

Installation route: 行走踏板~中转接头

Length: 3,050 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

4607850

Installation route: 行走踏板~中转接头

Length: 3,200 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. 23A

4331726

Installation route: 回油铁管(液压油箱)~先导滤芯

Length: 1,700 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. 24

4284508

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

Length: 2,300 mm
Specification: DN25;4SP-16;32Mpa
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. 40A

4437638

Installation route: 快换踏板~过渡阀块(快换)

Length: 2,950 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. 40

4402701

Installation route: 分配阀右~液压油箱

Length: 720 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. 53

4453683

Installation route: 分配阀左~流速切换阀

Length: 850 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. 3

4437634

Installation route: 左手柄~中转接头

Length: 2,950 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. 28

4462262

Installation route: 大臂(辅助)~控制阀(辅助)

Length: 3,000 mm
Specification: DN10;2SN-6;34.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 45°美制内螺纹37°内锥

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Diagram Pipe No. 22

4444720

Installation route: 右手柄~中转接头

Length: 2,800 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. 25

4444735

Installation route: 分配阀后~液压油箱

Length: 950 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. 7

4459641

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

Length: 2,550 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. 14

4250888

Installation route: 大臂(后段)~卸压安全阀(破碎器)

Length: 1,200 mm
Specification: DN25;4SH-16;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. 33A

4625780

Installation route: 机油管

Length: 1,350 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° 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. 9

4442133

Installation route: 液压泵~堵头(减震管)

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. 33A

4435692

Installation route: 机油管

Length: 1,350 mm
Specification: DN16;1SN-10;13Mpa
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. 1

4427111

Installation route: 中转接头~分配阀右

Length: 700 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. 33

4452733

Installation route: 过渡阀块(辅助)~过渡阀块

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. 13

4388131

Installation route: 大臂油缸左1/左4

Length: 810 mm
Specification: DN25;4SH-16;38.8MPa
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. 3

4374912

Installation route: 大臂油缸黄油管

Length: 6,580 mm
Specification: DN5;2层纤维-3;14MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 4

4437636

Installation route: 左手柄~中转接头

Length: 3,050 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. 33

9243511

Installation route: 机油管

Length: 1,350 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° 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. 0

4437273

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

Length: 3,900 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

4465617

Installation route: 进回油阀~中转接头

Length: 3,200 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. 15

4438288

Installation route: 右手柄~进回油阀

Length: 1,700 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. 14

4607964

Installation route: 行走踏板~中转接头

Length: 3,000 mm
Specification: DN10;1SN-06;18.0MPa
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. 7

4452263

Installation route: 小臂破碎器截止阀

Length: 1,800 mm
Specification: DN25;4SH-16;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. 28

4462262

Installation route: 大臂(辅助)~回油铁管(液压油箱)

Length: 3,000 mm
Specification: DN10;2SN-6;34.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 45°美制内螺纹37°内锥

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Diagram Pipe No. 19A

4374424

Installation route: 大臂油缸黄油管

Length: 2,800 mm
Specification: DN6;1SN-4;10.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 7

4285795

Installation route: 先导泵~控制阀(辅助)

Length: 500 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. 7

4438098

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

Length: 2,400 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. 0

4437653

Installation route: 左手柄~进回油阀

Length: 1,950 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. 8

4442173

Installation route: 进回油阀~中转接头

Length: 3,150 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. 13

4608801

Installation route: 行走踏板~中转接头

Length: 3,150 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

4388137

Installation route: Boom cylinder — left 2 / left 3Original Chinese: 大臂油缸左2/左3

Length: 810 mm
Specification: DN19;4SH-12;42MPa
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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Narrow the selection

Control Lever15 hoses Attachments15 hoses Swivel Joint11 hoses Pedal8 hoses Grease Lines8 hoses Control Valve4 hoses Hydraulic Tank4 hoses Attachments – Quick Coupler4 hoses Boom Assembly3 hoses Engine Oil Lines3 hoses Attachments – Breaker3 hoses Solenoid Valve2 hoses Supply and Return Valve2 hoses Attachments – Lock Valve2 hoses

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 ZX270LC?

The current published data covers 16 systems and 86 hose records. Systems with more listed records include: Control Lever (15 hoses), Attachments (15 hoses), Swivel Joint (11 hoses), Pedal (8 hoses), Grease Lines (8 hoses), Control Valve (4 hoses).

What is the hose length range for Hitachi ZX270LC?

Based on published records with valid lengths, the range is 400–6,680 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX270LC?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (26 records), DN6;1SN-04;22.5MPa (16 records), DN6;1SN-4;7MPa (7 records), DN10;1SN-6;7Mpa (4 records), DN13;1SN-08;16MPa (4 records). Verify the specification together with length, pressure, and fitting details.

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

Each record keeps the left and right fitting descriptions separate. Current examples: 4313443: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4459263: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4607850: 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 ZX270LC hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 15A (4313443), Pipe No. 13 (4459263), Pipe No. 12 (4607850), Pipe No. 23A (4331726). Open a record to compare its installation position with the linked manual page.

Hose Length and Fitting List

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Common Repair Questions