Troubleshooting 4.6. Other troubles HYDROSTATIC DRIVE UNIT (continued) WORK HYDRAULIC SYSTEM *) Have this work performed by local dealer.
WA90-5 – VEAM270100 4-15 Fault Fault cause Remedy Hydrostatic drive unit overheated Faulty operation of charge pump *) Check function (pressure) of charge pump Hydraulic oil radiator (radiator surfaces, fins) dirty Clean hydraulic oil radiator (radiator surfaces, fins) Faulty operation of radiator Check tension of drive belt Hydraulic filter dirty Replace filter element of hydraulic filter Oil level in hydraulic oil tank either too high or too low Correct oil level in hydraulic oil tank Unusual noise Oil level in hydraulic oil tank too low Top up hydraulic oil Inclusions of air in lines and units of the hydraulic system (faulty bleeding) Bleed hydraulic system Fault Fault cause Remedy Lifting power too low Oil level in hydraulic tank too low Top up hydraulic oil Lifting power too slow Filter insert of hydraulic oil filter dirty Replace filter insert of hydraulic oil filter Air bubbles in hydraulic oil Wrong hydraulic oil quality Fill in prescribed hydraulic oil Oil level in hydraulic oil tank too low Top up hydraulic oil Cylinders move jerky Oil level in hydraulic oil tank too low Top up hydraulic oil