Nihajni motor 842140002 za mini bager Komatsu PC12R-8, PC15R-8
Če se odločite za nakup opreme po nizki ceni, se prepričajte, da ste komunicirati z resničnim prodajalcem. Izvedite čim več informacij o lastniku opreme. Eden od načinov goljufanja se je predstavljati za resnično podjetje. V primeru suma o tem obvestite nas za dodatno kontrolo preko obrazca za povratne informacije.
Preden se odločite za nakup natančno preglejte več prodajnih ponudb, da boste razumeli povprečno ceno izbrane opreme. Če je cena ponudbe, ki vam je všeč, veliko nižja od podobnih ponudb, pomislite na to. Pomembna razlika v ceni lahko kaže na skrite napake ali pa na poskus prodajalca na goljufivo ravnanje.
Ne kupujte izdelkov, katerih cena je preveč drugačna od povprečne cene za podobno opremo.
Ne dajajte soglasja za dvomljive obljube in predplačane izdelke. V primeru dvoma se nikar ne bojte pojasniti podrobnosti, zahtevajte dodatne fotografije in dokumente za opremo, preverite pristnost dokumentov in postavite vprašanja.
Gre za najpogostejšo vrsto goljufije. Nepošteni prodajalci lahko zahtevajo določen znesek - predplačilo - torej "rezervacijo" vaše pravice do nakupa opreme. Tako goljufi lahko zberejo veliko količino denarja in izginejo, mi pa ne moremo več stopiti z njimi v stik.
- Prenos predplačila na kartico
- Ne opravite predplačila brez dokumentov, ki potrjujejo postopek prenosa denarja, če prodajalec v sporočilu izraža dvom.
- Prenos na račun "skrbnika" (agenta)
- Takšna zahteva bi morala biti zaskrbljujoča, verjetno komunicirate z goljufi.
- Prenos na račun podjetja s podobnim imenom
- Bodite previdni. Goljufi se lahko prikrijejo kot znane družbe, saj opravijo manjše spremembe imena. Ne prenesite sredstev, če je ime podjetja sumljivo.
- Zamenjava lastnih podatkov na računu resničnega podjetja
- Pred prenosom poskrbite, da so navedeni podatki pravilni in da se nanašajo točno na določeno podjetje.
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Component: Swing Motor Device Assembly (High Quality Aftermarket new)
Machine Compatibility:
Komatsu PC12R-8 Mini Excavator
Komatsu PC15R-8 Mini Excavator
Condition: Genuine New / Original Brand
System Function: Drives the upper structure swing mechanism for precise 360-degree cabin rotation.
2. Technical Specifications
Type: Fixed Displacement Axial Piston Motor
Design Integration: Includes the hydraulic motor block, mechanical parking brake system, and relief valve network in a single compact housing.
Performance: Factory-calibrated to deliver maximum starting torque and smooth deceleration braking without hydraulic shock.
Standards: Manufactured to exact Komatsu OEM metallurgy and engineering clearances to guarantee factory-standard swing speed.
3. Critical Installation Requirements
Case Priming (Mandatory)
You must manually fill the swing motor housing with clean hydraulic oil through the highest case drain port before operating the machine. Running the motor dry for even a few seconds will cause immediate mechanical failure of the piston shoes and cylinder block.
Clear the Case Drain Line
Ensure the case drain line back to the hydraulic tank is completely unobstructed and free of backpressure. A blocked or restricted drain line will instantly blow out the main shaft seal, leading to external oil leaks.
Gear Greasing & Cleanness
Clean the mounting face on the excavator chassis thoroughly. Liberally grease the output shaft pinion and the main swing bearing ring gear with heavy-duty lithium grease during installation.
System Decontamination
If the previous swing motor failed mechanically (sending metal fragments into the oil), you must flush the swing circuit hoses, clean the hydraulic reservoir, and change all system filters before startup.
4. Frequently Asked Questions (FAQ)
Q: Are the swing motors for the PC12R-8 and PC15R-8 fully interchangeable?
A: Yes, the PC12R-8 and PC15R-8 share the same structural frame size and hydraulic platform for the upper swing drive system. However, always verify your exact Machine Serial Number prior to shipping to ensure matching hydraulic line port fittings.
Q: My mini excavator cabin drifts or rotates slowly on a slope when joysticks are neutral. Is the swing motor bad?
A: This symptom usually points to a worn internal mechanical parking brake disc stack or leaking swing relief valves within the motor device. Replacing the complete genuine motor assembly resolves both issues.
Q: How is this component packaged for safe transit?
A: The genuine swing motor is preserved with anti-corrosion oil, sealed in a moisture-proof vapor barrier, and packed securely inside a heavy-duty, impact-resistant shipping box to prevent any shaft or port damage during logistics.
5. Shipping & Logistics
Packaging: Export-grade reinforced protective casing.
Transit Time: Global express air freight via DHL/FedEx/UPS typically delivers within 3 to 7 business days.