Hydraulic line repair data

Hitachi EX17U Boom Assembly Hose List

Coverage details

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 490–820 mm

Current system

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Use the number on the diagram, a part number, connection point, length, hose size, or fitting.

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 23

4453160

Installation route: 大臂油缸~大臂右1

Length: 630 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 25

4453162

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

Length: 820 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 26

4453163

Installation route: Arm cylinder — rightOriginal Chinese: 小臂油缸右

Length: 490 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 24

4453161

Installation route: 大臂油缸~大臂右2

Length: 760 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 7

4453392

Installation route: 大臂左4

Length: 2,010 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 90°英制内螺纹30°外锥

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Diagram Pipe No. 9

4453394

Installation route: 大臂右1

Length: 2,160 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 90°英制内螺纹30°外锥
Right fitting: 英制外螺纹30°内锥

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Diagram Pipe No. 9

4453394

Installation route: 大臂右1

Length: 2,160 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 90°英制内螺纹30°外锥
Right fitting: 英制外螺纹30°内锥

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Diagram Pipe No. 8

4453393

Installation route: 大臂左1

Length: 1,860 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 90°英制内螺纹30°外锥

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Diagram Pipe No. 26

4453164

Installation route: Bucket cylinderOriginal Chinese: 铲斗油缸

Length: 820 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 12

4453397

Installation route: 大臂左2

Length: 1,790 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 90°英制内螺纹30°外锥

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Diagram Pipe No. 11

4453396

Installation route: 大臂左3

Length: 1,900 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 90°英制内螺纹30°外锥

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Diagram Pipe No. 26

4453405

Installation route: 大臂摆动油缸后

Length: 1,550 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 90°英制内螺纹30°外锥

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Diagram Pipe No. 10

4453395

Installation route: 大臂右2

Length: 2,060 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 90°英制内螺纹30°外锥
Right fitting: 英制外螺纹30°内锥

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Diagram Pipe No. 10

4453395

Installation route: 大臂右2

Length: 2,060 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 90°英制内螺纹30°外锥
Right fitting: 英制外螺纹30°内锥

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Diagram Pipe No. 25

4453404

Installation route: 大臂摆动油缸前

Length: 1,880 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 90°英制内螺纹30°外锥

View full repair specifications

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 EX17U Boom Assembly?

There are 4 published records. 4 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi EX17U Boom Assembly?

Based on published records with valid lengths, the range is 490–820 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX17U Boom Assembly?

The most frequent raw specifications in the current published records are: DN6;1SN-4;20.5MPa (4 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX17U Boom Assembly?

Each record keeps the left and right fitting descriptions separate. Current examples: 4453160: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥; 4453162: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥; 4453163: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi EX17U Boom Assembly hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 23 (4453160), Pipe No. 25 (4453162), Pipe No. 26 (4453163), Pipe No. 24 (4453161). Open a record to compare its installation position with the linked manual page.