Cause: (10) hydraulic oil is too dirty. Remedy: cleaning systems, replacement of hydraulic oil. Cause: (11) pump filter is not blocked from the oil filter dirt effect Remedy: wash with clean oil filter to remove dirt. Cause: (12) oil shortage, oil position is too high, the oil suction pipe is exposed: Remedy: Come to the oil standard position of the hydraulic motor maintenance, lower oil absorption position. Cause: (13) on both sides of the pump body and pump cover is not cardboard pad; pump and pump cover is not perpendicular to the seal: KOS hydraulic piston pump plunger is generally divided into single and double piston hydraulic motor, typical representatives Germany Putzmeister solids pumps four hydraulic motors for sale, are: EKO single piston pump, KOS, KOV, HSP three kinds of double-piston pump. The pump belongs to positive displacement pumps, especially for high solid content, long distance pipeline viscous material, the advantage is to run very stable and reliable, but noisy, delivery pressures up 130Bar hydraulic motor repair, the displacement of up to 0.5 to 500 cubic meters / hour. Widely used in sewage treatment, solid waste treatment, mining and metallurgy, dredging, dredging, petrochemical, power plants, cement industry and other fields. [Edit this paragraph] Piston - piston principle has been around for decades, its popularity depends on two main reasons: 1. They do not need external energy - the force of water they provide the The energy required. 2, their equipment is extremely simple, with only two moving parts. Hydraulic motors agents, crystal creating hydraulic assurance (certification), a hydraulic motor provided by the Jinan Jing Chong Hydraulic Machinery Co., Ltd .. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal creating hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal creating hydraulic better future.