Exchange contaminated or degraded fluid promptly utilizing producer-advisable specs. 3. Cooling measures: Ensure proper ventilation and cooling for the hydraulic system during operation. Keep away from overloading the machine beyond its advisable capability to stop excessive strain on the pump. Four. Timely servicing: Adhere to scheduled maintenance intervals offered by Hyundai for your excavator main pump model. This includes changing worn-out elements, cleaning filters, conducting overall system checks, and making certain the correct upkeep of hydraulic oil. First test the ability unit. Is the engine struggling? Principally, if the engine is just not working accurately or in want of a service, then it can not present the mandatory energy for the hydraulic pumps to supply the stream to run the system. Secondly, verify the flexible drive coupling. This could be worn, shattered and even slipping on the drive shaft.