When it comes to engine oil changes, many people don’t replace all the oil at once. Instead, they simply top up the crankcase with fresh oil, thinking this will keep the system running smoothly and save money. However, this practice is misleading. Over time, used oil degrades, accumulates impurities, and loses its lubricating effectiveness. Even if you keep adding new oil, the overall quality won’t meet the required standards, which can lead to increased wear on engine components like cylinder liners and pistons, significantly shortening their lifespan. Additionally, the buildup of impurities in the oil can clog oil passages, potentially causing serious issues such as bearing failure or even engine seizure.
Adjusting valve clearance without proper tools is another common mistake. Some operators rely on feel rather than using the correct instruments to measure the gap. This can lead to improper adjustments, increasing fuel consumption and reducing engine power. In more severe cases, it may cause the piston to hit the valve, leading to catastrophic damage like a bent connecting rod, broken crankshaft, or even a damaged cylinder block.
Ignoring the cleaning of exhaust pipe carbon deposits is also a big no-no. Many operators neglect this maintenance task, allowing soot and debris to accumulate over time. This narrows the exhaust passage, restricts airflow, and causes the engine to work harder, resulting in higher fuel consumption, reduced power, and overheating. To prevent these issues, it's recommended to clean the exhaust pipes every three months under normal operating conditions.
Putting a new machine into heavy load without a proper break-in period is another risky move. After purchasing a new engine or agricultural equipment, it’s crucial to follow the manufacturer’s run-in procedure. This involves gradually increasing speed and load to allow the internal parts to settle and wear in properly. Skipping this step can lead to premature mechanical failure and a much shorter service life for the equipment.
Finally, not performing pre- and post-operation checks is a dangerous oversight. Many operators skip these essential steps, leading to loose or missing parts during operation, which can result in accidents or equipment damage. Before and after each use, it’s important to inspect bolts, nuts, washers, and other fasteners to ensure they are tight. Any worn or deformed parts should be repaired immediately to avoid small problems turning into major failures.
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