Hydraulic line repair data

Hitachi ZX800 Grease Lines Hose List

Hitachi ZX800 Grease Lines currently has 21 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 21 records
Full specifications: 21 records
Systems: 1 systems
Length range: 230–4,600 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 14

4305746

Installation route: 小臂黄油管

Length: 350 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. 15

4314548

Installation route: 分流阀(黄油)~过渡阀块(大臂下)

Length: 450 mm
Specification: DN6;1SN-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. 0

4342975

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

Length: 4,600 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. 40

4607460

Installation route: 大臂黄油管

Length: 230 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. 7

4267669

Installation route: 小臂黄油管

Length: 2,500 mm
Specification: DN6;2层纤维-04;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. 6

4290146

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

Length: 1,000 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. 41

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. 3

4317872

Installation route: 右大臂销黄油管

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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Diagram Pipe No. 7

4252853

Installation route: 小臂黄油管

Length: 2,960 mm
Specification: DN6;2层纤维-04;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. 5

4297998

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

Length: 800 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

4314983

Installation route: 大臂油缸黄油管

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. 2

4214424

Installation route: 小臂销黄油管

Length: 450 mm
Specification: DN6;2层纤维-4;14MPa
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

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. 55

4367714

Installation route: 铲斗油缸黄油管

Length: 700 mm
Specification: DN6;1SN-4;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. 54

4367712

Installation route: 大臂油缸黄油管

Length: 500 mm
Specification: DN6;1SN-4;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. 43

4203161

Installation route: 大臂黄油管

Length: 450 mm
Specification: DN6;2SN-04;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. 6

4351853

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

Length: 900 mm
Specification: DN6;2SN-04;28Mpa
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

4340881

Installation route: 铲斗油缸黄油管

Length: 600 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. 5

4203102

Installation route: 铲斗油缸黄油管

Length: 550 mm
Specification: DN6;1SN-04;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. 16

4314547

Installation route: 分流阀(黄油)~过渡阀块(大臂下)

Length: 400 mm
Specification: DN6;1SN-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. 4

4301447

Installation route: 小臂黄油管

Length: 3,020 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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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 ZX800 Grease Lines?

There are 21 published records. 21 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX800 Grease Lines?

Based on published records with valid lengths, the range is 230–4,600 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX800 Grease Lines?

The most frequent raw specifications in the current published records are: DN6;1SN-4;7Mpa (5 records), DN6;2SN-4;27.5MPa (4 records), DN6;2层纤维-4;14MPa (3 records), DN6;1SN-04;22.5MPa (2 records), DN6;1SN-4;14MPa (2 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX800 Grease Lines?

Each record keeps the left and right fitting descriptions separate. Current examples: 4305746: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4314548: left 美制内螺纹37°内锥; right 90°美制内螺纹37°内锥; 4342975: 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 ZX800 Grease Lines hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 14 (4305746), Pipe No. 15 (4314548), Pipe No. 0 (4342975), Pipe No. 40 (4607460). Open a record to compare its installation position with the linked manual page.