Summary excavator engine failure analysis Daquan Construction Machinery engine failures have occurred in the course, for visits and investigated a number of construction machinery repair shop and have a lot of construction machinery and construction units. The survey found that the use of the engine failure was mainly due to the use of the engine caused by improper maintenance. Since some machine hand or thinking skill level is not high enough to pay attention to when using the machinery can not strictly enforce the relevant regulations and rules, and even use some wrong operation and maintenance methods, resulting in premature engine failure. 1, the new engine or overhaul the engine is not running-new or overhauled replacement engine cylinder liners, pistons, piston rings and bearing and other parts, which were not fully run-in with a load of work, resulting in early wear parts, and some Pull the cylinder occurs, bush-burning phenomenon. 2, after the cold engine at high speed immediately after starting the engine cold start due in cold state, the oil viscosity is high, the flow resistance is also large, so that the oil into the friction of the time lag, the parts are not adequately lubricated engine, causing the engine to the gear and Adverse damaged wheel bearing lubrication excavator price, but also intensified the cylinder and bearing wear. Especially the supercharged engine will cause the turbocharger shaft ablation. For this reason, after starting the supercharged engine should idle for a while, the standby oil temperature rises, improved liquidity, improving the speed booster to give only after sufficient lubrication wheeled excavator, which is all the more important in the cold winter. 3, the engine suddenly stalled when the supercharged engine suddenly stalled at high speeds, the oil pump stops immediately, within the turbocharger oil stopped flowing. If at this time the temperature of the exhaust manifold high wheeled excavator factory outlets, the heat will be absorbed into the booster housing, will stay there baked into coke oil, blocking the inlet, resulting in bush oil, accelerated wear of the shaft and sleeve, and even "killed" serious consequences. Therefore, the supercharged engine stall before the load must first be lifted to idle a few minutes, then turn off until the engine temperature drops. Taian Jia and Heavy Machinery Co., Ltd. slewing Big Wheel repair and maintenance skills, very useful! Rotating turntable portion includes a slewing ring, gear, and other parts of the center section. Usually we open the cover next to the base of the boom can be observed cavity ring gear lubrication, and ring wear. With the use of the machine, dust-turn center section will appear at the aging, in case of rain, the rain will follow the rotational center section slatted infiltrated the ring gear of the cavity used wheeled excavator, causing turntable water. This will greatly affect the love machine rotating ring gear life. Excavator Excavator operation, butter cavity due to the dilution water, lubrication not up to standard, it will exacerbate the wear ring, another long soak will ring on iron peeling, eventually leading to rotation abnormal sound. The most serious is the ring gear failure. Inspection and maintenance: general rotary gear inspection and oil change cycles every 2000 hours or one year, 20 tons of butter filling machine capacity of 36 liters (two barrels). To open the arm base on a regular basis, four types cover the front of the frame to check the ring and lubrication. Maintenance or water can be found at the bottom of the digging machine X Overhead chamber to open the cover release water. Rotary bearing maintenance and maintenance on the swing bearing maintenance customer widespread misunderstanding that the rotary bearing lubricating oil with the same period the size of the arm, spank. In fact, such as but played the opposite role. If the lubrication cycle is too short, too much oil will make the bearing, thereby bursting the dust seal leaked. There will also be leakage of contaminants into the interior of the bearing, never harm the normal operation of the bearing. Caterpillar slewing bearing lubrication intervals recommended every 250 hours. Butter and down while playing, in play while rotating machines, each 15 ° Catch a gun lubricant that is enough. In various applications the lubrication cycle can be adjusted according to the intensity of your job, usually about 1 week lubricated once.泰安嘉 and Heavy Machinery Co., Ltd. Wheel Excavators how much money | Zhangjiakou Wheel Excavators | Kerry and Heavy (View) by 泰安嘉 and Heavy Machinery Co., Ltd ..泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) strong, credible, in Tai'an, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kerry and heavy and you hand in hand into the brilliant, for a better future!