Beginners should pay attention to safety precautions used excavators but it is still a lot of. Machine hand in strict accordance with outside practices should remember excavator operation in enclosed spaces, be sure to pay attention to ventilation, to avoid their own because the machine engine poisoning or inhaling too much dust. Depending on conditions, the price of second-hand excavator sales, different environment, the rational use of safety excavator, used excavator sales market, to ensure that their personal and property safety. If you turn counterclockwise to open the valve (1) Tracked still too tight, or after to grease nipple (2), adding oil track is still loose, hand digging machine sales, all is not normal phenomenon. At this time, second-hand excavator sales network, do not attempt to disassemble the track or tracks to the 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. Used excavator sales _ _ Kim Ho used excavators digging machine sales platform used by the Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Used excavator sales _ _ Kim Ho used excavators digging machine sales platform used 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.