Hydraulic line repair data

Hitachi EX450LC-5 Hose Repair Data

Hitachi EX450LC-5 currently has 79 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 79 records
Full specifications: 79 records
Systems: 12 systems
Length range: 300–10,000 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. 8

4387236

Installation route: 左手柄~中转接头(手柄)

Length: 1,650 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. 34

4356518

Installation route: 前小臂油缸锁止阀~后小臂油缸锁止阀

Length: 850 mm
Specification: DN12;4SP-8;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. 2

4390433

Installation route: 先导泵~吸油铁管

Length: 430 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

4055122

Installation route: 黄油泵~黄油软管卷盘

Length: 1,350 mm
Specification: DN10;2SN-06;21Mpa
Left fitting: 英制锥形外螺纹
Right fitting: British female thread, 60° external cone seatOriginal Chinese: 英制内螺纹60°外锥

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Diagram Pipe No. 14

4373681

Installation route: 右手柄~过渡阀块(手柄)

Length: 1,650 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. 38

4366790

Installation route: 行走踏板~过渡阀块(行走踏板)

Length: 1,050 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. 9

4333397

Installation route: 左手柄~进回油阀

Length: 880 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. 1

4366775

Installation route: 中转接头(手柄)~分配阀下右

Length: 2,150 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. 77

4366742

Installation route: 分配阀下~分配阀上左

Length: 1,050 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. 44

4360932

Installation route: 行走踏板~过渡阀块(行走踏板)

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. 15

4346003

Installation route: 右手柄~过渡阀块(手柄)

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. 5

4366773

Installation route: 液压油箱~进回油阀

Length: 2,150 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. 68

4188905

Installation route: 分配阀左~回转马达(左)

Length: 850 mm
Specification: DN19;4SP-12;38Mpa
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. 21

4367008

Installation route: 分配阀右~分配阀下

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. 60

4357900

Installation route: 小臂油缸锁止阀~分配阀上左

Length: 3,600 mm
Specification: DN12;2SN-8;20.5MPa
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

4290170

Installation route: 配重自卸踏板~过渡阀块(配重自卸)

Length: 440 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. 84

4386259

Installation route: 电磁阀~中转接头(手柄)

Length: 1,800 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. 4

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

4366752

Installation route: 中转接头(手柄)~过渡阀块(手柄)

Length: 300 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. 0

4218064

Installation route: Left boom-cylinder grease lineOriginal Chinese: 左大臂油缸黄油管

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. 10

4366778

Installation route: 中转接头(手柄)~分配阀下左

Length: 1,950 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. 84

4398302

Installation route: 电磁阀~中转接头(手柄)

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. 4

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. 1

4297236

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

Length: 3,350 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. 10

4343209

Installation route: 大臂(后段)~卸压安全阀(破碎器)

Length: 900 mm
Specification: DN32;4SP-20;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. 18

4353626

Installation route: 黄油软管卷盘~黄油枪

Length: 10,000 mm
Specification: DN10;2SN-06;21Mpa
Left fitting: 英制外螺纹30°内锥
Right fitting: 英制外螺纹30°内锥

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Diagram Pipe No. 12

4322485

Installation route: 液压泵~先导滤芯

Length: 1,000 mm
Specification: DN13;2SN-08;27.5MPa
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. 17

4319149

Installation route: 分配阀上右~过渡阀块(分配阀)

Length: 3,600 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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Diagram Pipe No. 5

4316024

Installation route: 左手柄~过渡阀块(手柄)

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. 36

4366789

Installation route: 行走踏板~过渡阀块(行走踏板)

Length: 1,050 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. 32

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. 14

4387237

Installation route: 右手柄~过渡阀块(手柄)

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. 69

4197700

Installation route: 分配阀左~回转马达(左)

Length: 950 mm
Specification: DN19;4SP-12;38Mpa
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

4369200

Installation route: 中转接头(手柄)~分配阀上右

Length: 2,650 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. 19

4367009

Installation route: 分配阀下左~过渡阀块(手柄)

Length: 1,900 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. 31

4323290

Installation route: 行走踏板~进回油阀

Length: 1,100 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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Narrow the selection

Control Lever22 hoses Control Valve13 hoses Pedal7 hoses Attachments7 hoses Grease Lines7 hoses Boom Assembly4 hoses Attachments – Breaker4 hoses Attachments – Lock Valve4 hoses Swivel Joint3 hoses Hydraulic Tank3 hoses Hydraulic Pump3 hoses Solenoid 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 EX450LC-5?

The current published data covers 12 systems and 79 hose records. Systems with more listed records include: Control Lever (22 hoses), Control Valve (13 hoses), Pedal (7 hoses), Attachments (7 hoses), Grease Lines (7 hoses), Boom Assembly (4 hoses).

What is the hose length range for Hitachi EX450LC-5?

Based on published records with valid lengths, the range is 300–10,000 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX450LC-5?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (40 records), DN10;1SN-06;18MPa (7 records), DN10;1SN-06;7Mpa (3 records), DN25;4SH-16;38.8MPa (3 records), DN25;4SP-16;32Mpa (3 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX450LC-5?

Each record keeps the left and right fitting descriptions separate. Current examples: 4387236: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4356518: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4390433: left American female thread, flat-face seal; right American female thread, flat-face seal. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi EX450LC-5 hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 8 (4387236), Pipe No. 34 (4356518), Pipe No. 2 (4390433), Pipe No. 10 (4055122). 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