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HOWO T7H HOWO A7 HOWO NX380 DUMP TRUCK Fuel Injection Pump 1001830368
FUNCTION
1. High-Pressure Diesel Generation: It pressurizes diesel-received from the low-pressure fuel supply pump-to an extremely high level and delivers it to the injectors of each cylinder via high-pressure fuel lines.
2. Precise Metering and Timed Injection: Based on engine speed, load, and operating conditions, it supplies diesel to the combustion chamber with precise timing, quantity, and pressure, thereby ensuring complete combustion, robust power output, and economical fuel consumption.
3. Engine Operation Control: Through an internal mechanical governor, it automatically regulates the fuel injection volume to maintain stable engine speed and power output.
Brief Description of Operating Principles
1. High-Pressure Fuel Supply:After low-pressure diesel enters the injection pump, it is compressed by the plunger assembly (consisting of a plunger and a barrel) under the drive of a camshaft, thereby generating high-pressure diesel.
2. Distribution and Injection Control:In accordance with the engine's firing order (1-5-3-6-2-4), the high-pressure diesel is sequentially delivered to the injectors of the six cylinders, ensuring uniform fuel injection across all cylinders.
3. Speed Governing and Protection:A mechanical governor automatically adjusts the fuel injection volume-increasing or decreasing it-in response to changes in engine load, thereby preventing over-speeding or stalling; it also incorporates a fuel shut-off function to facilitate engine shutdown.
4. Auxiliary Functions:Certain models also integrate auxiliary devices-such as a fuel transfer pump and an injection timing advance mechanism-to further optimize the injection timing advance angle and the overall fuel supply.
Installation Location
The high-pressure fuel injection pump is mounted on the mid-to-rear section of the right side of the engine.
Specific Location: It is situated near the gear case cover on the right side of the engine block. It engages with the engine's camshaft or an intermediate gear via a drive gear, and is driven in rotation by the engine crankshaft.
Mounting Method: It is secured by 3 to 4 bolts to a dedicated mounting flange located on the side of the engine block. Although its position is somewhat concealed, it becomes visible once the side cover on the right side of the engine is opened or specific protective panels are removed.
DETAILS
| DESCRIPTION | Fuel Injection Pump | PART NUMBER | 1001830368 |
| WEIGHT |
25KG |
VOLUME |
460 mm × 300 mm × 200 mm |
| TRUCK MOLDE | WEICHAI | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Routine Maintenance Recommendations
1. Daily or Per Shift (for Long-Haul Heavy-Duty Trucks):
Check the diesel filter for accumulated water and drain it promptly.
Observe the engine during operation for any abnormalities (such as emitting black smoke, lack of power, or difficulty starting); these may be early warning signs of fuel injection pump failure.
Inspect the low-pressure fuel circuit for any fuel leaks or vapor lock issues.
2. Weekly or Every 1,000–2,000 Kilometers:
Check the exterior of the fuel injection pump for any fuel leaks (particularly at the high-pressure fuel line connections and pump body seals).
Ensure that the diesel tank and filters remain clean; avoid refueling with substandard or water-contaminated diesel.
3. Monthly or Every 5,000–10,000 Kilometers:
Thoroughly drain any accumulated water and impurities from both the primary and secondary diesel filters.
Check the fuel injection pump's mounting bolts for looseness, and inspect surrounding fuel lines for signs of aging or leakage.
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