A repeated avoidance of the accelerator pedal before start-up Since the diesel engine has not yet rotated, the fuel injection pump has not been operated. Repeatedly stepping on the throttle will only increase the wear of the fuel injection pump control device and the oil quantity adjustment mechanism, and will not allow diesel fuel to be injected into the cylinder. The second avoids starting the throttle to the maximum position The diesel engine generally adopts the full-standard governor. When the accelerator is stepped on a certain position when starting, the fuel supply adjusting rod is at the maximum fuel supply position. If it continues to increase the throttle, The amount of oil will not change, but the larger the throttle, the higher the speed after starting. However, the temperature of the diesel engine that has just started is low and the lubrication is not enough. The immediate high-speed operation will inevitably increase the wear. ? Three bogey abrupt throttle Some of the machine friends in the use of the throttle, suddenly increase or decrease the throttle, will make the engine speed increased sharply. This will increase the amount of carbon deposits in the combustion chamber, increasing wear, resulting in unstable speed and power reduction. Four bogey consistent large throttle operation tractor in the job, should be based on changes in the load and road conditions, change the gear and change the throttle to adjust the speed. Some operators consistently use large throttles and never change the throttle position. This not only wastes fuel, but also accelerates the wear of various components. ? Five avoid the throttle when the horn to use some of the machine likes to bang the throttle, so that the exhaust pipe emits large and small exhaust sound, when the horn to rush to give way. This will not only speed up machine wear, but may also cause traffic accidents due to unstable hand speeds. 6. Avoid dragging when clutch pedals are not reduced When some operators are disengaging the clutch, they do not reduce the throttle in time. This will cause the engine to run under the wide throttle, causing the engine speed to suddenly increase and accelerate the wear of the engine.