Hydraulic line repair data

Hitachi ZX350LC-5N Hose Repair Data

Coverage details

Hoses: 103 records
Full specifications: 103 records
Systems: 13 systems
Length range: 250–4,500 mm

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Control LeverAttachments – BreakerBoom AssemblyControl ValveSolenoid ValveSwivel JointHydraulic TankHydraulic PumpAttachmentsPedalGrease Lines

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Hose repair details

Hose Length and Fitting List

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

Diagram Pipe No. 9

4630934

Installation route: 中转接头~分配阀下

Length: 1,050 mm
Specification: DN10;1SN-06;18MPa
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. 5

4650194

Installation route: 大臂(前段)~大臂(后段)

Length: 1,700 mm
Specification: DN25;4SP-16;35Mpa
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. 11

4276003

Installation route: 回油铁管(液压油箱)~

Length: 2,000 mm
Specification: DN6;1SN-04;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. 12

4628957

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

Length: 900 mm
Specification: DN32;6SH-20;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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Diagram Pipe No. 10

4664514

Installation route: 模式转换阀~中转接头

Length: 1,550 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. 7

4630952

Installation route: 中转接头~分配阀下

Length: 750 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. 23

4707581

Installation route: 左手柄~进回油阀

Length: 2,200 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. 11

4630933

Installation route: 中转接头~分配阀下

Length: 1,150 mm
Specification: DN10;1SN-06;18MPa
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. 27

4447441

Installation route: 电磁阀~先导滤芯

Length: 2,500 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. 13

4655171

Installation route: 行走踏板~中转接头

Length: 3,400 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

4702035

Installation route: 破碎器踏板~中转接头

Length: 3,500 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

4312286

Installation route: 控制阀(风扇)~风扇马达

Length: 800 mm
Specification: DN12;2SN-8;21Mpa
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. 22

4656809

Installation route: 分配阀右~电磁阀

Length: 410 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. 19

4630937

Installation route: 中转接头~分配阀下

Length: 750 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. 9

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. 25

4661819

Installation route: 右手柄~模式转换阀

Length: 3,200 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. 21

4702987

Installation route: 控制阀(风扇)~铁管(风扇液压油泵)

Length: 750 mm
Specification: DN19;2SN-12;21Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 12

4639629

Installation route: 行走踏板~中转接头

Length: 3,450 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. 4

4648997

Installation route: 小臂破碎器截止阀右

Length: 2,550 mm
Specification: DN32;4SP-20;35Mpa
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. 14

4639630

Installation route: 行走踏板~中转接头

Length: 3,400 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

4648034

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

Length: 1,050 mm
Specification: DN32;4SP-20;35Mpa
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

4710123

Installation route: 液压油箱~进回油阀

Length: 4,500 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. 17

4630946

Installation route: 分配阀下~电磁阀

Length: 850 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. 36

FF502904

Installation route: 过渡阀块(破碎器)~回油铁管(液压油箱)

Length: 870 mm
Specification: DN31;1SN-20;6.3Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 17

4286814

Installation route: 大臂(中段)~大臂(后段)

Length: 1,050 mm
Specification: DN25;4SP-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. 11

4656788

Installation route: 液压泵~吸油铁管

Length: 850 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 16

4715355

Installation route: 中转接头~电磁阀(液压泵)

Length: 2,350 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. 32

4643029

Installation route: 分配阀上~分配阀右

Length: 550 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 45°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

4707585

Installation route: 左手柄~进回油阀

Length: 2,100 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

4698031

Installation route: 风扇液压油泵~控制阀(风扇)

Length: 1,300 mm
Specification: DN25;1SN-16;7Mpa
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. 12

4257291

Installation route: 大臂油缸黄油管

Length: 3,600 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. 22

4661819

Installation route: 右手柄~中转接头

Length: 3,200 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. 28

4468180

Installation route: 电磁阀~电磁阀(液压泵)

Length: 1,130 mm
Specification: DN6;1SN-04;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. 5

4642276

Installation route: 小臂破碎器截止阀右

Length: 1,650 mm
Specification: DN32;4SP-20;35Mpa
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. 13

4314983

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

Length: 3,700 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. 19

4656806

Installation route: 分配阀右~电磁阀

Length: 500 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 45°美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°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.

Which systems and hoses are currently listed for Hitachi ZX350LC-5N?

The current published data covers 13 systems and 103 hose records. Systems with more listed records include: Control Lever (32 hoses), Attachments – Breaker (16 hoses), Boom Assembly (14 hoses), Control Valve (7 hoses), Solenoid Valve (6 hoses), Swivel Joint (5 hoses).

What is the hose length range for Hitachi ZX350LC-5N?

Based on published records with valid lengths, the range is 250–4,500 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX350LC-5N?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (28 records), DN10;1SN-6;7Mpa (17 records), DN6;1SN-04;22.5MPa (15 records), DN25;4SH-16;34.5Mpa (5 records), DN32;4SP-20;35Mpa (5 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX350LC-5N?

Each record keeps the left and right fitting descriptions separate. Current examples: 4630934: left 美制内螺纹74°内锥; right 45°美制内螺纹74°内锥; 4650194: left American female thread, flat-face seal; right American female thread, flat-face seal; 4276003: left 美制内螺纹37°内锥; right 90°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 ZX350LC-5N hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 9 (4630934), Pipe No. 5 (4650194), Pipe No. 11 (4276003), Pipe No. 12 (4628957). Open a record to compare its installation position with the linked manual page.

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5. Both end fittings, including thread, sealing seat, size, and angle.
6. Installation-diagram position and routing.

State explicitly what you could not verify. Do not infer a missing dimension or fitting. End with a short on-machine checklist for a hose repair technician.

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