Hydraulic line repair data

Hitachi EX400LC-3 Hose Repair Data

Hitachi EX400LC-3 currently has 92 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 92 records
Full specifications: 92 records
Systems: 13 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. 2

4308037

Installation route: 先导泵~吸油铁管

Length: 400 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. 1

4308639

Installation route: 分配阀下右~过渡阀块(手柄)

Length: 2,100 mm
Specification: DN10;1层纤维-6;14MPa
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. 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. 34

4366756

Installation route: 液压油箱~电磁阀

Length: 465 mm
Specification: DN10;2SN-6;33MPa
Left fitting: 美制内螺纹74°内锥双六角
Right fitting: 美制内螺纹74°内锥双六角

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Diagram Pipe No. 57

4268958

Installation route: 过渡阀块(破碎器)~破碎器滤芯

Length: 700 mm
Specification: DN32;2SN-20;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. 1

4366784

Installation route: 中转接头(行走踏板)~分配阀下左

Length: 1,850 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. 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. 34

4344301

Installation route: 分配阀下左~过渡阀块(踏板)

Length: 3,400 mm
Specification: DN10;1层纤维-6;14MPa
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

4210340

Installation route: 破碎器踏板~进回油阀

Length: 1,350 mm
Specification: DN10;1层纤维-6;14MPa
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. 54

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. 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. 31

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. 35

4281535

Installation route: 行走踏板~过渡阀块(行走踏板)

Length: 1,050 mm
Specification: DN10;1层纤维-6;14MPa
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. 45

4327907

Installation route: 液压油箱~过渡阀块(回转马达)

Length: 2,700 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. 31

4366780

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. 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. 49

4342269

Installation route: 分配阀右~液压油箱

Length: 2,250 mm
Specification: DN6;2层纤维-4;14MPa
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

4281530

Installation route: 行走踏板~进回油阀

Length: 1,200 mm
Specification: DN10;1层纤维-6;14MPa
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. 6

4299086

Installation route: 左手柄~中转接头(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. 46

4308648

Installation route: 分配阀上左~分配阀上右

Length: 450 mm
Specification: DN10;1层纤维-6;14MPa
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. 55

4366763

Installation route: 电磁阀~中转接头(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. 8

4345675

Installation route: 铲斗油缸左

Length: 900 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: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 54

4317684

Installation route: 分配阀下~分配阀上左

Length: 1,050 mm
Specification: DN10;1层纤维-6;14MPa
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. 51

4317671

Installation route: 分配阀上左~液压油箱

Length: 650 mm
Specification: DN6;2层纤维-4;14MPa
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. 29

4366749

Installation route: 中转接头(踏板)~过渡阀块(踏板)

Length: 560 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

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. 1

4210341

Installation route: 破碎器踏板~行走踏板

Length: 1,200 mm
Specification: DN10;1层纤维-6;14MPa
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. 7

4287097

Installation route: 左手柄~中转接头(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. 46

4333713

Installation route: 过渡阀块(回转马达)~过渡阀块(分配阀)

Length: 1,100 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. 15

4343795

Installation route: 液压泵~先导滤芯

Length: 650 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. 56

4366747

Installation route: 分配阀右~过渡阀块(分配阀)

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. 37

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. 30

4311057

Installation route: 小臂油缸

Length: 1,000 mm
Specification: DN32;6SP-20;31MPa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 30

4366750

Installation route: 中转接头(踏板)~过渡阀块(踏板)

Length: 560 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

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. 1

4362977

Installation route: 过渡阀块(锁止阀)~回油铁管(液压油箱)

Length: 2,650 mm
Specification: DN32;2SN-20;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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Narrow the selection

Control Valve20 hoses Control Lever17 hoses Attachments12 hoses Attachments – Breaker11 hoses Pedal9 hoses Hydraulic Tank5 hoses Swivel Joint4 hoses Attachments – Lock Valve4 hoses Boom Assembly3 hoses Hydraulic Pump3 hoses Grease Lines2 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 EX400LC-3?

The current published data covers 13 systems and 92 hose records. Systems with more listed records include: Control Valve (20 hoses), Control Lever (17 hoses), Attachments (12 hoses), Attachments – Breaker (11 hoses), Pedal (9 hoses), Hydraulic Tank (5 hoses).

What is the hose length range for Hitachi EX400LC-3?

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 EX400LC-3?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (32 records), DN10;1层纤维-6;14MPa (24 records), DN10;1SN-06;7Mpa (5 records), DN6;1SN-4;7Mpa (4 records), DN10;1SN-06;18MPa (3 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX400LC-3?

Each record keeps the left and right fitting descriptions separate. Current examples: 4308037: left American female thread, flat-face seal; right American female thread, flat-face seal; 4308639: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4366778: 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 EX400LC-3 hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 2 (4308037), Pipe No. 1 (4308639), Pipe No. 10 (4366778), Pipe No. 34 (4366756). 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