TROUBLESHOOTING *) These measures must be performed by your local Komatsu dealer. *) These measures must be performed by your local Komatsu dealer.
6-8 HYDROSTATIC DRIVE UNIT (CONTINUED) FAULT CAUSES REMEDY Unusual noise Oil level in hydraulic oil tank too low Top off hydraulic oil Inclusions of air in lines and units of the hydraulic system (faulty bleeding) Bleed hydraulic system WORK HYDRAULIC SYSTEM FAULT CAUSES REMEDY Lifting power too low Oil level in hydraulic tank too low Top off hydraulic oil Lifting power too slow Filter insert of hydraulic oil filter dirty Replace filter insert of hydraulic oil fil- ter Air bubbles in hydraulic oil Wrong hydraulic oil quality Fill in prescribed hydraulic oil Oil level in hydraulic oil tank too low Top off hydraulic oil Cylinders move jerky Oil level in hydraulic oil tank too low Top off hydraulic oil