Before using a new or overhauled tractor, a break-in test run is essential. Otherwise, its lifespan will be reduced, and in severe cases, it may cause cylinder scoring, bearing failure, and other accidents. Tractor break-in is divided into three stages: engine no-load operation, tractor idle operation, and load operation.
The break-in time and load levels for each stage should be specified in the instruction manual. Each stage should have its own emphasis and precautions.
1. Engine no-load operation: During operation, focus on checking the stability and rotation of the engine at various speeds. Pay attention to the operating sound, exhaust color, instrument readings, and check for and eliminate any leaks.
2. Tractor idle operation: By running the tractor at various speeds, check whether the steering, brakes, clutch, and travel mechanism are normal, and check whether the temperature of each bearing is normal. If any abnormalities are found, adjust or eliminate them promptly.
3. Tractor load operation: By strategically changing gears, check the engine's speed regulation performance, engine oil and water temperature, fuel consumption, exhaust color, and odor. Check for clutch slippage, brake performance, and coasting distance after disengaging from gear. These checks and adjustments provide a reliable basis for normal use.
During the break-in period, frequently check the lubricating oil. If excessive metal shavings are found in the oil, carefully inspect it and, if necessary, clean and replace the lubricating oil.
After the break-in period, perform thorough maintenance. In addition to the items specified in the instruction manual, the scope of maintenance should be determined based on the break-in process, manufacturing quality, and overhaul quality, and whether further maintenance is required.
