Hydraulic line repair data

Hitachi ZX220W-3 Attachments – Lock Valve Hose List

Coverage details

Hoses: 8 records
Full specifications: 8 records
Systems: 1 systems
Length range: 350–2,750 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 7A

4436269

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 350 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 90°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. 6A

4436267

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 420 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. 5A

4677419

Installation route: 液压油箱~接线板(锁止阀)

Length: 2,400 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. 2A

4663050

Installation route: 右大臂油缸锁止阀~分配阀上右

Length: 2,750 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. 3A

4677420

Installation route: 液压油箱~接线板(锁止阀)

Length: 2,450 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. 4A

4674168

Installation route: 回油铁管(液压油箱)~接线板(锁止阀)

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. 31A

4674168

Installation route: 接线板(大臂)~接头(锁止阀)

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. 2

9271205

Installation route: 右大臂油缸锁止阀~分配阀上右

Length: 2,750 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. 28

9285728

Installation route: 分节油缸锁止阀~接头(锁止阀)

Length: 4,150 mm
Specification: DN6;2SN-4;34.5MPa
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. 28A

4679010

Installation route: 分节油缸锁止阀~接头(锁止阀)

Length: 4,150 mm
Specification: DN6;2SN-4;34.5MPa
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. 2

9271213

Installation route: 控制阀(分节大臂)~接线板(锁止阀)

Length: 1,250 mm
Specification: DN10;1SN-6;7Mpa
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. 3

9284365

Installation route: 液压油箱~接线板(锁止阀)

Length: 2,450 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. 6

9190082

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 420 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. 3

9271214

Installation route: 液压油箱~接线板(锁止阀)

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. 2A

4663057

Installation route: 控制阀(分节大臂)~接线板(锁止阀)

Length: 1,250 mm
Specification: DN10;1SN-6;7Mpa
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

9190075

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 340 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 90°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. 32

9271214

Installation route: 接线板(大臂)~接头(锁止阀)

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. 5

9284364

Installation route: 液压油箱~接线板(锁止阀)

Length: 2,400 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

View full repair specifications

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 ZX220W-3 Attachments – Lock Valve?

There are 8 published records. 8 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX220W-3 Attachments – Lock Valve?

Based on published records with valid lengths, the range is 350–2,750 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX220W-3 Attachments – Lock Valve?

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

How can I identify the left and right hose fittings for Hitachi ZX220W-3 Attachments – Lock Valve?

Each record keeps the left and right fitting descriptions separate. Current examples: 4436269: left 90°美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4436267: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4677419: 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 ZX220W-3 Attachments – Lock Valve hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 7A (4436269), Pipe No. 6A (4436267), Pipe No. 5A (4677419), Pipe No. 2A (4663050). Open a record to compare its installation position with the linked manual page.