180000 kilometers of the buick lacrosse bearing damage, owners thumb up the disposal measures to repair the master

Today the old buick lacrosse years ago in machine, our factory just overhaul by today was the first time owner after overhaul a machine maintenance in our factory, major maintenance project for delayed fangdongye shortage and chassis sound. Because the owner from our factory some interval, so delayed fangdongye shortage problem in the middle of the other checked, other repair shop is given as a result of the water pipe, water tank, and the heater tank works, there is no signs of leakage. We all knew the buick lacrosse car owner is a very careful person, he said portray antifreeze before long will be a little less, we really believe antifreeze will be less. After maintenance master inspection found that the owner of discriminant yes if there is leakage phenomenon. Only if the location of the leaking points very shade and water leakage is too small, not serious look hard to find. Antifreeze after find out the reasons of leakage is very good, but the teacher maintenance master sound change in the disposal of the chassis front wheel bearing encountered some trouble, because between shaft and bearing suspected foreign body or rust too serious, can't get the ball bearing assembly and half shaft cage don't leave. Last maintenance master disposal process not only preserves the ball cage universal joint and horns, also has obtained the owner's thumb up. Above, the smooth oil duct due to long time not to change the oil from severe infarction buick lacrosse, but it would be said to the owner the paint and appearance of care is not the common good, if not because of the contours of the basic can't see it is a car once the factory 10 years old. Driving the car for more than 180000 kilometers, the owner said because of frequent use this car on business office, so the car's chassis parts can all once, in the light, the left front wheel bearing of the formed sound also in other repair shop to change, but the damage again. First the teacher first check the disposal of a leaking problem, due to the owner in the repair shop didn't check out other problems, so the teacher this check cannot be routine inspection. Master the application of the high pressure leak air pump to the high pressure gas into the kettle, the high voltage is applied to the test leaking watertight than a car more accurate check leakage more easily. Above circles for leak detection tool, because is very hard to find, so the teacher as much as possible without causing damage to the pipe and other parts of cooling at the same time, the pressure to high. After high pressure in the leaking point soon reveal the true colors. Leak point is above the kettle, can see from the above circles, this only for the bottom of the kettle cracked a very tiny crack, crack and crush tests about 30 seconds or so there will be a drop of water flow, as long as a change in the kettle abilities deal with leaking problem. To find the cause of the leakage, maintenance teacher beginning disposal site sounded a change in the front wheel bearing. When maintenance master remove the tires to see big half shaft nut was thinking of the bearing is not easy to change, because the rust from the above half shaft ball cage can see once very long very long no one hurt, is likely to mesh ball bearing cage once and tightly together, even if direct pull down behind fixed bearing three Ruth also can remove the bearings smoothly. So the teacher with rust remover disposal the rust around the big nut first, and then pull down above the big nut inside the circle, finally put on a few teeth grain big nut from the position of the big nut hitting with a hammer. Due to the large master afraid of using energy, formed inside the ball cage with gearbox is damaged, so the master resolution down horn cohesion within the fixed screw to damping ball cage set of some larger space, and then tap. Above a circle is the claw cohesion suspension screw, because the screw itself has the role of positioning four-wheel positioning, so don't need do not attack Angle parameter changes. After, after maintenance they take turns to hit finally knocked away. Knocked all the master maintenance simply put horns together also to break down, pull down after the horn can be clearly seen above the ball cage universal joint, alveolar intermediate above circles all once it is rust, no wonder the mesh so fast. If do not have rust disposal, clean the rust will directly affect the new bearing assembly, so maintenance master with a small first word screw tooth groove of the rust off. So while shovel brush, 10 minutes after the reluctant recovery car as is. Master conjecture, rusty reason may be the last time to change the bearing on the alveolar besmear butter as smooth and the butter gradually become a long period of time the final details of the iron and ball cage up a rusty, so maintenance master resolution with launch machine external detergent washing clean the butter in the new bearing assembly. Had changed the teacher all knew of the buick series models, the bearing design is very reasonable, only need remove the above represents the three screws in front of the bearing can be easily added. But as the ball bearing cage and mesh is too tight can not be removed, incur more down a lot of things. Thankfully the owner is very understand our approach, not only not to delay his time angry, also for our thumb up refueling.