Products Description
|
Product name |
Fuel Injection Pump |
|
Part number |
DB4427-5213 |
|
Excavator model |
1004.40T |
|
Lead time |
1-3 days after payment |
|
Packing |
neutral/original |
|
MOQ |
1 PC |
|
Quality |
high quality |
|
Warranty |
3-6 months |
|
Shipping |
DHL, UPS, FedEx, Air, Sea, DDP |
|
Payment |
TT/Alibaba Trade Assurance/Credit card/Western Union/Alipay/Wechat |
DETAILED PHOTOS
Component and Environmental Inspection
Inspect the DB4427-5213 fuel pump to ensure the pump body, gears, and interfaces are free from damage such as dents and cracks, and that the seals are intact and free from aging. Clean the fuel pump mounting area on the engine to remove oil, rust, and impurities, ensuring the mounting surface is flat and clean. Inspect the connecting fuel lines for damage and aging, and check that the wiring harness is free from breaks.
Small Tips
| Maintenance Dimension | Mechanical Fuel Pump | Electric Fuel Pump |
|---|---|---|
| Core Maintenance Focus | Focus on wear and clearance adjustment of mechanical components (e.g., pump gears, plungers, camshafts). Regularly check camshaft axial clearance and plunger wear; calibrate fuel injection advance angle to avoid fuel supply timing deviation. | Focus on protecting electronic components (e.g., control unit, sensors, motor windings). Test circuit resistance and power supply stability to prevent short circuits or electrostatic damage; monitor electronically regulated oil pressure status. |
| Maintenance Frequency & Parts Replacement | High mechanical wear rate leads to frequent maintenance. Frequently inspect seal aging; replace vulnerable mechanical parts (e.g., gears, gaskets) at short intervals. | Low wear rate and long service life result in low maintenance frequency. Replace filters and aged seals on demand; conduct targeted repairs only when electronic components malfunction. |
| Special Operational Requirements | After disassembly, professional calibration of fuel supply clearance is required for precision pairs (e.g., plungers, delivery valves) - not feasible for non-professionals. | Strictly prohibit dry running; limit power-on test duration to within 10 seconds to prevent motor burnout. Avoid water contact with the electronic control unit during cleaning. |
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