Hydraulic line repair data

Hitachi ZX450LC Hose Repair Data

Hitachi ZX450LC currently has 136 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 136 records
Full specifications: 136 records
Systems: 16 systems
Length range: 230–3,600 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. 51

4484019

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. 13

4435310

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

Length: 2,900 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. 15

4446842

Installation route: 中转接头~分配阀上

Length: 1,900 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. 26

4442655

Installation route: 回转接头~电磁阀

Length: 2,000 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. 1

4446832

Installation route: 中转接头~分配阀下

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. 43

4450909

Installation route: 中转接头~过渡阀块(支架)

Length: 500 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. 55

4459256

Installation route: 中转接头~分配阀上

Length: 1,650 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. 19

4450428

Installation route: 行走踏板~进回油阀

Length: 650 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

4107297

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

Length: 600 mm
Specification: DN6;1SN-04;7MPa
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. 31

4450779

Installation route: 右大臂销黄油管

Length: 1,150 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. 25

4368895

Installation route: 分配阀左~过渡阀块(分配阀)

Length: 650 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

4484025

Installation route: 右手柄~中转接头

Length: 3,100 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. 3

4316572

Installation route: 回转接头~分配阀左下

Length: 1,450 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: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型

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Diagram Pipe No. 49

4484017

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. 15

4484031

Installation route: 左手柄~中转接头

Length: 3,000 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. 17

4437663

Installation route: 中转接头~分配阀下

Length: 1,600 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. 42

4450908

Installation route: 中转接头~过渡阀块(支架)

Length: 500 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. 18A

4367008

Installation route: 分配阀下~分配阀右

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. 10A

4462256

Installation route: 破碎器踏板~中转接头

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. 33

4305747

Installation route: 大臂黄油管

Length: 400 mm
Specification: DN6;2SN-4;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. 62

4459255

Installation route: 过渡阀块(分配阀)~过渡阀块(支架)

Length: 1,800 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. 37

9210754

Installation route: Swing motor → return steel line (hydraulic tank)Original Chinese: 回转马达~回油铁管(液压油箱)

Length: 1,500 mm
Specification: DN13;1SN-08;16MPa
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. 1

4218064

Installation route: 大臂油缸黄油管

Length: 3,400 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. 2

4437442

Installation route: 回转马达(左)~回转马达(右)

Length: 550 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. 57

4459258

Installation route: 中转接头~分配阀上

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. 34

4607461

Installation route: 大臂黄油管

Length: 280 mm
Specification: DN6;2SN-4;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. 102

4259804

Installation route: 大臂左3/左4/左5/左6

Length: 2,550 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 40

4323284

Installation route: 分配阀前~回转马达

Length: 420 mm
Specification: DN19;1SN-12;10.5MPa
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

4484027

Installation route: 右手柄~中转接头

Length: 3,100 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. 32

4447833

Installation route: 液压油箱~电磁阀

Length: 1,300 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. 18

4436267

Installation route: 过渡阀块(破碎器)~过渡阀块(破碎器)

Length: 420 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. 42

4450908

Installation route: 中转接头~过渡阀块(支架)

Length: 500 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. 55

4459266

Installation route: 进回油阀~中转接头

Length: 2,900 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. 24

4295191

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

Length: 3,120 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. 33

4458532

Installation route: 蓄能器~过渡阀块(分配阀)

Length: 1,340 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 45°美制内螺纹74°内锥

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Diagram Pipe No. 30

4317872

Installation route: 左大臂销黄油管

Length: 1,200 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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Narrow the selection

Control Lever35 hoses Control Valve22 hoses Grease Lines18 hoses Swing Motor10 hoses Swivel Joint8 hoses Hydraulic Tank7 hoses Pedal7 hoses Attachments – Breaker7 hoses Hydraulic Pump4 hoses Supply and Return Valve4 hoses Attachments4 hoses Boom Assembly3 hoses Solenoid Valve3 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 ZX450LC?

The current published data covers 16 systems and 136 hose records. Systems with more listed records include: Control Lever (35 hoses), Control Valve (22 hoses), Grease Lines (18 hoses), Swing Motor (10 hoses), Swivel Joint (8 hoses), Hydraulic Tank (7 hoses).

What is the hose length range for Hitachi ZX450LC?

Based on published records with valid lengths, the range is 230–3,600 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX450LC?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (56 records), DN6;1SN-04;22.5MPa (18 records), DN10;1SN-6;7Mpa (16 records), DN13;1SN-08;16MPa (8 records), DN25;4SH-16;38.8MPa (4 records). Verify the specification together with length, pressure, and fitting details.

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

Each record keeps the left and right fitting descriptions separate. Current examples: 4484019: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4435310: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4446842: 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 ZX450LC hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 51 (4484019), Pipe No. 13 (4435310), Pipe No. 15 (4446842), Pipe No. 26 (4442655). 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