Glavni 708-3T-00252 hidraulična pumpa za Komatsu PC78US-6 mini bagera
Ako odlučite da kupite opremu po niskoj ceni, proverite da li komunicirate sa pravim prodavcem. Saznajte više o vlasniku opreme. Jedan od načina prevare je da se predstavi kao prava kompanija. U slučaju sumnje, obavestite nas o tome radi dodatne kontrole, putem obrasca za povratne informacije.
Pre nego što odlučite da napravite kupovinu, pažljivo pregledajte nekoliko prodajnih ponuda kako biste razumeli prosečnu vrednost izabranog modela opreme. Ako je cena ponude koja vam se sviđa mnogo niža od sličnih ponuda, razmotrite je. Značajna razlika u ceni može ukazati na skrivene nedostatke ili pokušaj prodavca da izvrši prevaru.
Ne kupujte proizvode čija je cena suviše različita od prosečne cene slične opreme.
Ne dajte saglasnost na sumnjive zaloge i plaćanje robe unapred. U slučaju sumnje, ne bojte se da pojasnite detalje, tražite dodatne fotografije i dokumente za opremu, proverite autentičnost dokumenata i postavjate pitanja.
Najčešća vrsta prevare. Nepošteni prodavci mogu zatražiti određenu količinu kapare da "rezervišu" vaše pravo na kupovinu opreme. Dakle, prevaranti mogu sakupiti veliki iznos i nestanu, i više se ne pojave.
- Prenos pretplate na karticu
- Nemojte plaćati unapred bez izdavanja dokumenata koji potvrđuju postupak prenosa novca, ako je vam tokom komunikacije prodavac postao sumnjičav.
- Prenos na račun "poverenika"
- Takav zahtev treba biti alarmantan, najverovatnije komunicirate sa prevarantom.
- Prenos na račun kompanije sa sličnim nazivom
- Budite oprezni, prevaranti se mogu sakriti iza poznatih kompanija, neznatno menjajući njihov naziv. Nemojte prenositi sredstva ako vam je naziv kompanije sumnjiv.
- Zamena sopstvenih podataka u fakturi stvarne kompanije
- Pre prenosa proverite da li su navedeni podaci tačni i da se odnose na navedenu kompaniju.
Kontakti prodavca
+86 199 246...
Prikaži
+86 199 2461 6345
Kina
Kina
Kina
Kina
Kina
Kina
Kina
Kina
Kina
Kina
Kina
Kina
Rumunija
Španija
Rumunija, Satu Mare
This pump assembly is a direct "bolt-on" replacement for the following Komatsu factory part numbers:
Primary OEM Part Number: 708-3T-00252
Interchangeable Numbers: 708-3T-00114, 708-3T-00215, 708-3T-00216
Machine Fitment: Komatsu PC78US-6, PC78UU-6, and PC78MR-6 series excavators.
2. Technical Specifications
Type: Tandem Variable Displacement Axial Piston Pump.
Control System: Integrated Load-Sensing (LS) and Pressure Compensator (PC) valves.
Rated Pressure: Nominal operating pressure of 28.5 MPa (285 bar).
Construction: Heavy-duty cast iron housing with precision-lapped valve plates and hardened cylinder blocks.
Design Benefit: Compact tandem design allows for high power density, fitting perfectly within the tight engine compartment of the "Ultra Short" (US) chassis.
3. Why Choose Our Professional Grade Pumps?
Precision Calibration: Every pump is pre-set to Komatsu factory pressure and flow specifications. This ensures the machine tracks straight and the boom/arm speeds match original performance.
100% Bench Tested: Each unit undergoes a rigorous dynamometer test. We verify volumetric efficiency, case drain leakage, and response times of the LS valves under full load.
Material Quality: We use premium internal components (piston sets, friction plates, and seals) that meet or exceed OEM hardness and thermal expansion standards.
Express Logistics: Units are secured in shock-proof export wooden crates. Express delivery via DHL, FedEx, or UPS typically arrives in 3 to 7 business days.
4. Critical Installation Requirements
To protect your investment and ensure a valid warranty, the following steps are mandatory:
Case Priming: Before starting the engine, you must fill the pump housing with clean hydraulic oil via the highest case drain port. Running the pump "dry" for even a few seconds will cause catastrophic failure of the piston shoes.
System Decontamination: If the previous pump suffered a mechanical failure (metal in the system), the hydraulic tank must be cleaned, and the oil cooler and main control valve must be flushed.
Filter Replacement: Always install a new high-efficiency suction strainer and return filter (ISO VG46 oil is recommended).
Air Bleeding: After installation, run the engine at low idle and cycle all hydraulic cylinders to their stroke ends several times to purge air from the system.
5. Ordering & Support
To ensure 100% accuracy for your machine, please have the following ready:
Machine Serial Number (Found on the chassis plate).
Photos of your existing pump’s data plate if possible.