MAINTENANCE K. STEPS AND HANDRAILS 1. Inspect daily all mounting steps and handrails on the machine to make sure they are clean and in safe working condition. See Figure 4.18A. 2. Repair or replace all areas before allowing any operation of the machine. CAUTION Use steps, and handrails when mounting and dismount- ing the machine. Keep steps, handrails and step rails clean and in safe working condition. FIGURE 4.18A L. FRAME STRUCTURE 1. Carefully inspect the entire frame structure for signs of damage, broken welds etc.. DISCONNECT BATTERY NEGATIVE (-) CABLE WHEN INSPECTING ELECTRICAL OR WELDING 4 NOTE Remove any excessive grease form the attachment pin connecting areas to inspect welding.
See Figure 4.18C. 2. Repair or replace all frame components found to be damaged before allowing any operation of the machine. FIGURE 4.18B SK32004046 3. In cases where welding repair is required, con- sult an authorized KOBELCO Service Dealer for proper procedures concerning weld repairs. Use only certified welding personnel familiar with structural welding methods to perform repairs requiring welding. WARNING DISCONNECT BATTERIES BEFORE WELDING ON THIS MACHINE. SEE FIGURE 4.18B. CONNECT WELDER GROUND CABLE WITHIN 1M (3’-3”) AWAY FROM AREA TO BE WELDED FIGURE 4.18C M. TRACKS & COMPONENTS 1. Track Shoes a. Visually inspect track shoes for signs of ex- cessive wear or damage. See Figure 4.46.
b. Have all repair or replacement work done by an authorized KOBELCO Service Dealer. c. Check tightness of shoe mounting bolts and nuts. If loose, remove bolt, clean thread, apply engine oil and torque to 853 ± 27 N•m (628 ± 36 ft•lbs). See Figure 4.18D. FIGURE 4.18D 4-18 SK210(LC)/SK250(LC)–VI Dynamic Acera OM, 09/00 Rev.2 Align upper and lower structures for easy access to cab and maintenance areas Keep steps clean Make sure to clean these areas during the inspection