Car run-in period, but also known as "walking together" period refers to the beginning of a new car or overhaul operation stage, typically 1000-1500 km, which is to ensure sufficient mechanical contact, friction, fit, shape the basic mileage. Car run-in period as the athletes in the competition before the warm-up exercise, the purpose is to enable all parts of the body the ability to function can be adjusted to adapt to the environment improved. The merits of running vehicles, will auto life, safety and economy have a major impact. Car run-in period is characterized by:
1) parts wear faster. Although automobile factory was run according to regulations dealing with, but parts are still rough surface, combined with new parts between the metal particles have more off, so wear and tear.
2) failure-prone. As the parts in the processing, assembly deviations, and also contains a number of difficult to find the hidden dangers in walking together is likely to occur during the stuck parts, heat and leakage and other faults.
3) oil perishable. As the parts go together with the smaller gap during the period, film quality is poor, large temperature rise, oil easily oxidized. More metal particles mixed with oil, so oil quality.
4) fuel consumption. Take in period in order to ensure a small load operation, carburetor installed speed film, resulting in partial thick mixture. Meanwhile, large parts of the friction between the fuel consumption also increased.
5) easy to loose fasteners. To address the above situation, and go together in the period should be noted: limit load, speed, high quality lubricating oil, start the "cold roll slowly forward, low temperature," Slow start, slow refueling, timely shift, brake slowly, strictly control water temperature, always check the transmission, drive axle and wheel temperature. Car run-in period, if any exception should be properly handled, they could not make claims. Car driving to a certain mileage, they should repair and routine maintenance. Running-in oil should be replaced expiration, removal of speed film, full adjustment, fastening of the vehicle to normal technical condition.
Improve the running quality should note the following issues:
1) start the first warm-up, brake separation together. Avoid emergency braking, or not only will run in the brake system has been hit hard and will increase the impact of load on the engine chassis. "From the rear brake first" approach is very time in the running, and in the very situation (emergency brake), the measures taken to protect the engine. Cut can not be used as a good long-term use. When the vehicle had a run-in period, from the clutch and maintenance perspective, it should be "after the first brake off."
2) constant speed running gear of vehicles in motion should be gradual, starting with the most low and gradually add high-end place, must not use the high-bit low speed or low-bit high speed. And frequently changes the gear, do not use a gear driving a long time. Road should pay attention to the engine, transmission, drive axle of the working conditions and temperature changes, control vehicle speed.
3) As for gasoline, high octane gasoline plant run-in period should be preferred to prevent deflagration, the ignition in case of difficulties, should be delayed ignition time, and time shift and avoid hard acceleration. Run-in period is over, inspection and maintenance before entering the period of normal use, maintenance as follows: Check and adjust the fan and water pump drive belt tension; check and adjust the camshaft timing belt tension; adjust the valve clearance; check the engine cylinder head screws tight degree; replace the engine oil filter; replace the engine oil; added radiator coolant; adjust ignition timing; remove air filter dust; adjust the idle speed and idle speed mixer pedal clearance; check the brake fluid volume to see if there no leakage; adjust the brake pedal travel; check hand brake lever and cable travel; check and tighten the wheel nuts and wheel connection; check the transmission and differential oil; check other key female tightening torque; Check Steering System gap tightness and oil leaks, steering wheel free travel is appropriate. Therefore, the car running period must ground observation, ground inspection, found fault and remove, to do regular maintenance work, making the car always in good technical condition operation.
1) parts wear faster. Although automobile factory was run according to regulations dealing with, but parts are still rough surface, combined with new parts between the metal particles have more off, so wear and tear.
2) failure-prone. As the parts in the processing, assembly deviations, and also contains a number of difficult to find the hidden dangers in walking together is likely to occur during the stuck parts, heat and leakage and other faults.
3) oil perishable. As the parts go together with the smaller gap during the period, film quality is poor, large temperature rise, oil easily oxidized. More metal particles mixed with oil, so oil quality.
4) fuel consumption. Take in period in order to ensure a small load operation, carburetor installed speed film, resulting in partial thick mixture. Meanwhile, large parts of the friction between the fuel consumption also increased.
5) easy to loose fasteners. To address the above situation, and go together in the period should be noted: limit load, speed, high quality lubricating oil, start the "cold roll slowly forward, low temperature," Slow start, slow refueling, timely shift, brake slowly, strictly control water temperature, always check the transmission, drive axle and wheel temperature. Car run-in period, if any exception should be properly handled, they could not make claims. Car driving to a certain mileage, they should repair and routine maintenance. Running-in oil should be replaced expiration, removal of speed film, full adjustment, fastening of the vehicle to normal technical condition.
Improve the running quality should note the following issues:
1) start the first warm-up, brake separation together. Avoid emergency braking, or not only will run in the brake system has been hit hard and will increase the impact of load on the engine chassis. "From the rear brake first" approach is very time in the running, and in the very situation (emergency brake), the measures taken to protect the engine. Cut can not be used as a good long-term use. When the vehicle had a run-in period, from the clutch and maintenance perspective, it should be "after the first brake off."
2) constant speed running gear of vehicles in motion should be gradual, starting with the most low and gradually add high-end place, must not use the high-bit low speed or low-bit high speed. And frequently changes the gear, do not use a gear driving a long time. Road should pay attention to the engine, transmission, drive axle of the working conditions and temperature changes, control vehicle speed.
3) As for gasoline, high octane gasoline plant run-in period should be preferred to prevent deflagration, the ignition in case of difficulties, should be delayed ignition time, and time shift and avoid hard acceleration. Run-in period is over, inspection and maintenance before entering the period of normal use, maintenance as follows: Check and adjust the fan and water pump drive belt tension; check and adjust the camshaft timing belt tension; adjust the valve clearance; check the engine cylinder head screws tight degree; replace the engine oil filter; replace the engine oil; added radiator coolant; adjust ignition timing; remove air filter dust; adjust the idle speed and idle speed mixer pedal clearance; check the brake fluid volume to see if there no leakage; adjust the brake pedal travel; check hand brake lever and cable travel; check and tighten the wheel nuts and wheel connection; check the transmission and differential oil; check other key female tightening torque; Check Steering System gap tightness and oil leaks, steering wheel free travel is appropriate. Therefore, the car running period must ground observation, ground inspection, found fault and remove, to do regular maintenance work, making the car always in good technical condition operation.
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