In short, the sort used digging machine time, you must have some hand digging machine selection techniques and methods. Dulwich College Shanghai second-hand excavator sales company in this presentation to our customers specific selection method. 1, to the second-hand excavator market to experience the performance of second-hand excavator digging and view couplers used machines. 2, in the selection of second-hand digging machine when it is best to select a good brand reputation, Shanghai second-hand excavator direct business, pay attention to after-sales service and maintenance period of second-hand digging machine. 3, one of the factors is the appearance of second-hand excavator digging machine quality, Shanghai second-hand digging machine manufacturers, the appearance of a color instructions before working conditions difficult, Shanghai second-hand excavator, used excavator natural quality is compromised. 4, check the used excavator is necessary to start the engine, by seeing, hearing, smell used excavators to check the performance in the end how. 5, when the purchase of second-hand excavator working hours watching the meter on, look excavators use of time, the length of working time is a direct reflection of a used excavator quality is good or bad. If you turn counterclockwise to open the valve (1) Tracked still tight, Shanghai second-hand excavator business, or to grease nipple (2) adding the lubricant track still loose, all is not normal phenomenon. At this time, do not go trying to dismantle track or tracks regulator, because the high-pressure grease inside the track regulator be dangerous, you should immediately contact your local dealer designated to provide after-sales support. Reasonable adjustment of track tension can give digging machines provide continuous, stable driving force, and to avoid unnecessary damage to the track shoe. I believe these rules can help to you, you can utilize the actual work and maintenance of the device. Shanghai second-hand excavator | Used excavator Kim Ho | Shanghai second-hand excavator quotes provided by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Shanghai second-hand excavator | Used excavator Kim Ho | Shanghai second-hand excavator offer is Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Mr. Chairman.