399-2947 hidraulična pumpa za Caterpillar 301.7D 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...
+86 199 2461 6345
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Meksiko, Chihuahua
Rumunija
Litvanija, Telšiai
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1. Product Overview
The 399-2947 and 399-3051 are high-performance axial piston pumps that serve as the primary power source for the CAT 301.7D mini excavator's hydraulic system. Engineered for precision and efficiency, these pumps provide the necessary flow and pressure for digging, traveling, and auxiliary tool operations. They are designed to meet the rigorous performance standards of Caterpillar’s compact machinery, ensuring smooth multi-function operation and fuel efficiency.
2. Technical Specifications & Parameters
Part Numbers: 399-2947, 399-3051, 3992947, 3993051.
Machine Compatibility: Caterpillar (CAT) 301.7D / 301.7D CR.
Pump Type: Variable Displacement Axial Piston Pump.
Operating Pressure: Calibrated to factory relief settings (typically 240–280 bar) to ensure maximum breakout force.
Construction: Heavy-duty cast iron housing with precision-engineered internal piston and swash plate assemblies.
Mounting: Direct OEM-standard flange and spline shaft for a "plug-and-play" replacement.
3. Why Partner With a 13-Year Industry Expert?
Technical Mastery: We understand the exact flow requirements and pressure curves of the CAT 301 series. Our pumps are calibrated to restore "like-new" speed and power to your machine.
Rigorous Bench Testing: Every unit is subjected to a comprehensive hydraulic test to verify volumetric efficiency, pressure stability, and response times before it is crated.
Factory-Direct Pricing: By leveraging our 13-year optimized supply chain, we offer competitive wholesale pricing that provides significant savings over local retail dealerships.
Global Logistics Expertise: All pumps are secured in reinforced, shock-proof export wooden crates. We offer rapid delivery via DHL, FedEx, or UPS, typically arriving in 3 to 7 business days.
4. Critical Installation & Maintenance Protocol
Case Priming (Mandatory): You must fill the pump housing with clean, fresh hydraulic oil through the highest drain port before starting the engine. Running the pump "dry" will cause immediate and irreversible internal damage to the bearings and pistons.
System Decontamination: If the previous pump suffered a mechanical failure, you must flush the hydraulic tank and lines. Residual metallic debris is the primary cause of premature failure in new pumps.
Filter Mandate: Always install a new high-efficiency hydraulic return filter and suction strainer during the pump replacement process to protect the precision-lapped surfaces of the new unit.
5. Ordering & Professional Support
Fitment Verification: To ensure 100% accuracy, please provide your machine Serial Number (e.g., Prefix LJ7) or a photo of your existing pump’s nameplate.
Instant Quote: Contact us today for up-to-date pricing, tiered quality options (Original New vs. Premium OEM), and current stock status.
Technical Guidance: Our expert team is available 24/7 to provide professional guidance on system flushing, initial startup procedures, and hydraulic troubleshooting.