The 1075 combine harvester's electronic fuel pump is manufactured in France. Due to issues with the electrical circuit and oil quality, it is designed to avoid fuel-related failures. However, if problems do occur, they are typically related to either the electrical system or the condition of the diesel fuel.
a. Circuit Failure
If the electronic fuel pump does not operate when the power switch is turned on, first disconnect the pump from its wiring harness. Then, directly connect the positive and negative terminals of the battery to the corresponding wires of the pump. If the pump runs properly, this indicates a problem with the vehicle’s electrical circuit. In this case, you should inspect the wiring for any damage, loose connections, or corrosion. If the pump still doesn’t respond after this test, it likely means there is an internal fault within the pump itself, and replacement will be necessary.
b. Oil Quality Issue
If the diesel fuel is excessively dirty, the electronic pump may produce a weak or intermittent sound even when the circuit is activated. This can be a sign that debris or contaminants are clogging the internal components of the pump. To resolve this, the pump should be removed and disassembled carefully. The internal filter and pump components should then be cleaned thoroughly using clean diesel fuel. After cleaning, reassemble the pump and reinstall it. This process can often restore normal operation and prevent further damage.
Regular maintenance and using high-quality fuel can help reduce the likelihood of these issues occurring. Always make sure to follow the manufacturer’s guidelines when working on the electronic fuel system to ensure safety and proper function.
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