If you turn counterclockwise to open the valve (1) Tracked still tight, second-hand digging machine business, or to grease nipple (2) adding the lubricant track still loose, hand digging machine manufacturers, 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 specified, used digging machine, providing 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. Excavator in use among the general failure is digging machine running deviation, the reasons may be assigned to walk seal damage, used digging machines offer two hydraulic pumps flow sample sizes, while walking motor problems. Quick discharged hydraulic cylinder as a safety relief valve may be closed lax, or serious damage to cylinder seals and so on. So whether it is new or routine maintenance excavator used excavators have to take seriously, in order to prevent the excavator's failure, in the course of daily use requires careful attention to the maintenance of the excavator. Used digging machines, Jin Hao used excavators, used digging machine suppliers by the Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Used digging machines, Jin Hao used excavators, used digging machine supplier 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.