Hydraulic line repair data
Current machine
Use a system name, the number on the diagram, a part number, connection point, length, hose size, or fitting.
Hose repair details
Hose record
Installation route: Installation route — English review pendingOriginal Chinese: 分配阀右边—电磁阀
Hose record
Installation route: Installation route — English review pendingOriginal Chinese: 大臂左边
Hose record
Installation route: Installation route — English review pendingOriginal Chinese: 中心油道—回油铁管
Hose record
Installation route: Installation route — English review pendingOriginal Chinese: 回转马达—回油铁管
No hose in this list matches those words. Clear the box or search another machine.
Digitized data and source sheets
The table is a searchable transcription of the Hitachi ZX270-HHE workshop notes. The complete original handwritten sheets are shown below without cropping.
| Part number | Recorded length |
|---|---|
| 3050MMLR | 3,100 mm |
| 4313443 | 2,500 mm |
| 4388131 | 810 mm |
| 4468525 | 1,100 mm |
| 9206186T1L | 1,100 mm |
| 44448946 | 750 mm |
Complete pages are shown in their original proportions without cropping.
Workshop guide
For Hitachi ZX270-HHE, identify the exact model and hydraulic system on the machine first. A part number or diagram pipe number is the fastest way to narrow a replacement hose; if neither is visible, compare the installation route and the existing hose.
Check whether a listed dimension is finished assembly length, hose-only length, or cut length. These are not interchangeable. Confirm hose specification and pressure rating, then compare both ends separately: thread, sealing seat, size, angle, and orientation.
Where an installation drawing or manual figure is available, match its callout to the part number and physical route. A hydraulic circuit diagram explains connections but does not show the exact routing of a hose on the machine. Take the old hose or clear end-fitting photographs to the workshop if any dimension is missing.
Based on current published data
Questions appear only when a published record or linked PDF page provides the answer.
Each record keeps the left and right fitting descriptions separate. Current examples: 4468525: left Fitting type — English review pending; right Fitting type — English review pending; 4388131: left Fitting type — English review pending; right Fitting type — English review pending; 4313443: left Fitting type — English review pending; right Fitting type — English review pending. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.
Optional cross-check
The question is already written for this machine or hose. Use a tool with web search enabled; treat its answer as a starting point and verify on the machine.
I am checking hydraulic hose repair information for "Hitachi ZX270-HHE Hose Repair Data". Use web search and cite a source for every factual point. Compare this HoseSeek page with manufacturer manuals and reliable parts documentation: https://www.hoseseek.com/machines/hitachi/zx270-hhe--5a583237302d484845/ Verify, where applicable: 1. Exact machine model and any serial-number range. 2. Hydraulic system and installation route. 3. Hose part number and diagram pipe number. 4. Finished length, hose specification, and pressure rating. 5. Both end fittings, including thread, sealing seat, size, and angle. 6. Installation-diagram position and routing. State explicitly what you could not verify. Do not infer a missing dimension or fitting. End with a short on-machine checklist for a hose repair technician.
