Hydraulic line repair data

Hitachi ZX370 Grease Lines Hose List

Hitachi ZX370 Grease Lines currently has 9 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 9 records
Full specifications: 9 records
Systems: 1 systems
Length range: 280–6,660 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 16A

4401540

Installation route: 黄油泵~大臂(黄油)

Length: 3,000 mm
Specification: DN6;1SN-4;10.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 34

4394216

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

Length: 280 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. 11

4289772

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. 24

4374427

Installation route: 大臂黄油管

Length: 3,560 mm
Specification: DN5;2层纤维-3;14MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 3

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. 25

4401234

Installation route: 大臂黄油管

Length: 6,660 mm
Specification: DN5;2层纤维-3;14MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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Diagram Pipe No. 23

4407364

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

Length: 3,400 mm
Specification: DN5;2层纤维-3;14MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 公制卡套式

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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. 13

4316009

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

Length: 3,650 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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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 ZX370 Grease Lines?

There are 9 published records. 9 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX370 Grease Lines?

Based on published records with valid lengths, the range is 280–6,660 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX370 Grease Lines?

The most frequent raw specifications in the current published records are: DN5;2层纤维-3;14MPa (3 records), DN6;1SN-04;22.5MPa (3 records), DN10;2SN-06;21Mpa (1 records), DN6;1SN-4;10.5MPa (1 records), DN6;1SN-4;7Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX370 Grease Lines?

Each record keeps the left and right fitting descriptions separate. Current examples: 4401540: left 美制内螺纹37°内锥; right 公制卡套式; 4394216: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4289772: 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 ZX370 Grease Lines hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 16A (4401540), Pipe No. 34 (4394216), Pipe No. 11 (4289772), Pipe No. 24 (4374427). Open a record to compare its installation position with the linked manual page.