MAINTENANCE G. HYDRAULIC OIL LEVEL 1. Place the machine in the oil check position on a firm level surface as shown in Figure 4.16A. 2. Check the sight glass through the openning of the hydraulic tank side cover, as shown in Fig- ure 4.16B. WARNING FIGURE 4.16A FOR SAFE OPERATION ON INCLINES, THE HY- DRAULIC OIL LEVEL MUST BE MAINTAINED BE- TWEEN “PROPER LEVEL” AND “UPPER LIMIT” MARK. DO NOT OPERATE MACHINES ON INCLINED SURFACES WITH A SLOPE GREATER THAN 35є. 3. To add hydraulic oil, proceed as follows: a. Release hydraulic tank pressure. See Fig- ure 4.16C. 4 CAUTION Gasses from hydraulic tank may be hot. Wear safety equipment. FIGURE 4.16B RELEASE HYDRAULIC TANK PRESSURE b.
Slowly remove the six mounting bolts from the hydraulic return filter cover plate. Cover is under pressure by the spring. See Figure 4.16D. c. Add hydraulic oil through the return filter, fill- ing hydraulic tank to the proper level. See Figure 4.16B. d. Before replacing filter cover, replace “O”Ring. Order KOBELCO Part Number ZD11G20000. See Figure 4.16D. e. Lubricate the new “O”-Ring and place it prop- erly in seat. Place cover over opening and install mounting bolts with lockwashers. f. Torque mounting bolts to proper value. Re- fer to Torque Specifications Table. FIGURE 4.16C WARNING CLEAN UP ALL SPILLED OIL TO PREVENT FIRES.
DISPOSE OF HAZARDOUS WASTE ACCORDING TO ENVIRONMENTAL LAWS AND REGULATIONS. FIGURE 4.16D NOTE Machine is shipped from factory with SHELL TELLUS 46 Hydraulic oil. 4-16 SK210(LC)/SK250(LC)–VI Dynamic Acera OM, 09/00 Rev.2 HYDRAULIC OIL CHECK POSITION UPPER LIMIT PROPER LEVEL LOW (ADD OIL) UPPER LIMIT PROPER LEVEL LOW (ADD OIL)