Hydraulic line repair data

Hitachi ZX120 Hydraulic Pump Hose List

Hitachi ZX120 Hydraulic Pump currently has 10 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 10 records
Full specifications: 10 records
Systems: 1 systems
Length range: 400–2,000 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 21

4436293

Installation route: 液压泵~先导滤芯

Length: 500 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. 12

4422976

Installation route: 液压泵~分配阀(进油)

Length: 740 mm
Specification: DN16;4SP-10;38MPa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型

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Diagram Pipe No. 23

4437927

Installation route: 液压泵~先导滤芯

Length: 400 mm
Specification: DN13;2SN-08;27.5MPa
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. 0

4250063

Installation route: 液压泵~堵头(减震管)

Length: 850 mm
Specification: DN13;4SP-08;41.5MPa
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. 2

4285801

Installation route: 液压泵~堵头(减震管)

Length: 850 mm
Specification: DN13;4SP-08;41.5MPa
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. 21A

4442655

Installation route: 液压泵~中转接头

Length: 2,000 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. 16

4446905

Installation route: 液压泵~液压油箱

Length: 850 mm
Specification: DN13;2SN-08;27.5MPa
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. 17A

4442766

Installation route: 液压泵~中转接头

Length: 2,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 45°美制内螺纹37°内锥

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Diagram Pipe No. 11

4217388

Installation route: 液压泵~吸油铁管

Length: 600 mm
Specification: DN19;2SN-12;21.5MPa
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

4446587

Installation route: 液压泵~堵头(减震管)

Length: 650 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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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 ZX120 Hydraulic Pump?

There are 10 published records. 10 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX120 Hydraulic Pump?

Based on published records with valid lengths, the range is 400–2,000 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX120 Hydraulic Pump?

The most frequent raw specifications in the current published records are: DN10;1SN-06;18MPa (2 records), DN13;2SN-08;27.5MPa (2 records), DN13;4SP-08;41.5MPa (2 records), DN10;1SN-6;7Mpa (1 records), DN16;4SP-10;38MPa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX120 Hydraulic Pump?

Each record keeps the left and right fitting descriptions separate. Current examples: 4436293: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4422976: left Heavy-series flange; right 45° heavy-series flange; 4437927: 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 ZX120 Hydraulic Pump hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 21 (4436293), Pipe No. 12 (4422976), Pipe No. 23 (4437927), Pipe No. 0 (4250063). Open a record to compare its installation position with the linked manual page.