Hydraulic line repair data

Hitachi EX120-5 Attachments Hose List

Hitachi EX120-5 Attachments currently has 17 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 17 records
Full specifications: 17 records
Systems: 1 systems
Length range: 370–2,700 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 10

4378646

Installation route: 控制阀(推土铲)~过渡阀块(推土铲)

Length: 430 mm
Specification: DN12;1SN-8;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. 8

4375673

Installation route: 过渡阀块(推土铲)~过渡阀块(控制阀(推土铲))

Length: 480 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. 44

4368892

Installation route: 电磁阀~电磁阀(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. 1

4368893

Installation route: 流速切换阀~过渡阀块(流速切换)

Length: 800 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. 7A

4366088

Installation route: 推土铲油缸~铁管(推土铲)

Length: 910 mm
Specification: DN10;2SN-6;34.5MPa
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. 20

4361509

Installation route: 回转接头~铁管(推土铲)

Length: 370 mm
Specification: DN12;4SP-8;41.5Mpa
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. 14

4366794

Installation route: 先导泵~卸压阀(推土铲)

Length: 380 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. 47

9155313

Installation route: 分配阀左~电磁阀(流速切换)

Length: 2,400 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. 12A

4378641

Installation route: 分配阀上右~过渡阀块(分配阀)

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. 8

4373640

Installation route: 偏置大臂踏板~分配阀上

Length: 2,700 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

4365784

Installation route: 推土铲手柄~行走踏板

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. 15

4365779

Installation route: 先导泵上~先导泵前

Length: 580 mm
Specification: DN19;4层纤维-12;3.5MPa
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. 10

4375674

Installation route: 推土铲手柄~过渡阀块(推土铲)

Length: 1,750 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. 5

4368703

Installation route: 偏置大臂踏板~进回油阀

Length: 1,180 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. 47A

4368894

Installation route: 分配阀左~电磁阀(流速切换)

Length: 2,400 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

4375675

Installation route: 推土铲手柄~过渡阀块(推土铲)

Length: 1,700 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. 9

4365785

Installation route: 推土铲手柄~行走踏板

Length: 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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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 EX120-5 Attachments?

There are 17 published records. 17 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi EX120-5 Attachments?

Based on published records with valid lengths, the range is 370–2,700 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX120-5 Attachments?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (12 records), DN10;2SN-6;34.5MPa (1 records), DN12;1SN-8;7MPa (1 records), DN12;4SP-8;34.5Mpa (1 records), DN12;4SP-8;41.5Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX120-5 Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 4378646: left American female thread, flat-face seal; right American female thread, flat-face seal; 4375673: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4368892: 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 EX120-5 Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 10 (4378646), Pipe No. 8 (4375673), Pipe No. 44 (4368892), Pipe No. 1 (4368893). Open a record to compare its installation position with the linked manual page.