Hydraulic line repair data

Hitachi EX270LC-5 Hose Repair Data

Hitachi EX270LC-5 currently has 83 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 83 records
Full specifications: 83 records
Systems: 10 systems
Length range: 210–6,580 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. 4

4374912

Installation route: 大臂黄油管

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. 22

4345999

Installation route: 右手柄~中转接头

Length: 1,750 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. 30

4373559

Installation route: 左手柄~中转接头

Length: 2,050 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

4371504

Installation route: 电磁阀~进回油阀

Length: 2,900 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. 15

4272697

Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左

Length: 900 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

4374908

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

Length: 3,920 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. 22

4349819

Installation route: 模式转换阀~接线板(中转接头)

Length: 350 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. 103

4382551

Installation route: 流速切换阀上~流速切换阀右

Length: 380 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

4299672

Installation route: 小臂销黄油管

Length: 670 mm
Specification: DN6;2SN-4;68.5MPa
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. 29

4315872

Installation route: 左手柄~中转接头

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. 28

4346001

Installation route: 左手柄~中转接头

Length: 1,800 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. 11

4346008

Installation route: 行走踏板~进回油阀

Length: 1,100 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. 12

4368896

Installation route: 流速切换阀~过渡阀块(流速切换)

Length: 700 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. 1A

4374910

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

Length: 3,230 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. 22

4373562

Installation route: 右手柄~中转接头

Length: 1,850 mm
Specification: DN10;1SN-06;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. 36

4351165

Installation route: 中转接头~分配阀上

Length: 1,550 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. 0A

4374909

Installation route: 铲斗油缸黄油管

Length: 2,030 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. 8

4373557

Installation route: 左手柄~进回油阀

Length: 980 mm
Specification: DN10;1SN-06;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

4294425

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

Length: 2,250 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. 7

4373556

Installation route: 左手柄~进回油阀

Length: 880 mm
Specification: DN10;1SN-06;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. 7

4333394

Installation route: 左手柄~进回油阀

Length: 780 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

4333580

Installation route: 右手柄~进回油阀

Length: 1,200 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. 2

4355501

Installation route: 行走踏板~分配阀下右

Length: 3,050 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. 10

4360873

Installation route: 行走踏板~进回油阀

Length: 950 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. 36A

4275675

Installation route: 大臂(破碎器)~铁管(破碎器)

Length: 1,100 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. 0

4355500

Installation route: 行走踏板~分配阀下左

Length: 3,000 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

9154449

Installation route: 铲斗油缸黄油管

Length: 2,030 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. 46

4366653

Installation route: 中转接头~分配阀上

Length: 1,450 mm
Specification: DN6;2层纤维-4;14MPa
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. 1

9154450

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

Length: 3,230 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. 30

4315873

Installation route: 左手柄~中转接头

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. 17A

4346006

Installation route: 回转接头~电磁阀

Length: 1,500 mm
Specification: DN6;2层纤维-4;14MPa
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. 2

4374426

Installation route: Right boom-cylinder grease lineOriginal Chinese: 右大臂油缸黄油管

Length: 2,980 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. 30

4377481

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

Length: 2,400 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. 24

4346002

Installation route: 右手柄~中转接头

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. 2

4355420

Installation route: 电磁阀~进回油阀

Length: 2,650 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. 0A

4374424

Installation route: 黄油泵~大臂(黄油)

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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Narrow the selection

Control Lever32 hoses Grease Lines13 hoses Swivel Joint11 hoses Pedal6 hoses Boom Assembly5 hoses Control Valve4 hoses Solenoid Valve4 hoses Attachments – Breaker4 hoses Attachments3 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 EX270LC-5?

The current published data covers 10 systems and 83 hose records. Systems with more listed records include: Control Lever (32 hoses), Grease Lines (13 hoses), Swivel Joint (11 hoses), Pedal (6 hoses), Boom Assembly (5 hoses), Control Valve (4 hoses).

What is the hose length range for Hitachi EX270LC-5?

Based on published records with valid lengths, the range is 210–6,580 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX270LC-5?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (19 records), DN10;1SN-06;18MPa (18 records), DN6;1SN-4;7Mpa (7 records), DN10;1SN-06;7Mpa (6 records), DN25;4SP-16;32Mpa (6 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX270LC-5?

Each record keeps the left and right fitting descriptions separate. Current examples: 4374912: left 美制内螺纹37°内锥; right 公制卡套式; 4345999: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4373559: 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 EX270LC-5 hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 4 (4374912), Pipe No. 22 (4345999), Pipe No. 30 (4373559), Pipe No. 11 (4371504). 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