Komatsu — 10 HOUR (SHIFT) LUBRICATION AND MAINTENANCE CHECKS

OM4012.1 03/01 Maintenance - Section 4 Lubrication & Service Page 4-5 10 HOUR (DAILY) INSPECTION (continued) 9. WHEELS AND TIRES - a. Inspect tires for proper inflation and wear. b. Inspect for debris embedded in cuts or tread. c. Inspect for damaged, loose, or missing wheel mounting nuts/studs. 10. BODY-UP SWITCH (NOT SHOWN) - Clean sensing area of any dirt accumulation and check that wiring is intact. 11. CAB AIR FILTER (NOT SHOWN) - Under normal operating conditions, clean every 250 hours. In extremely dusty conditions, service as frequently as required. Clean filter element with mild soap and water, rinse completely clean and air dry with maximum of 40 psi (275 kPa). Reinstall filter.

12. AUTOMATIC LUBE SYSTEM - a. Check grease reservoir; fill as required. Lube Key “D”. b. Inspect system and check for proper operation. Be certain the following important areas are receiv- ing adequate amounts of grease. Lube Key “D”. Final Drive Pivot Pin - Steering Linkage Rear Hydrair ® Suspension Pin Joints - Upper & Lower Body Hinge Pins - Hoist Cylinders Pins - Upper & Lower Anti-sway Bar - Both Ends 13. COOLING AIR DUCTWORK - Inspect ductwork from blower to rear drive case to be certain that ductwork is secure and undamaged and there are no cooling air restrictions. COMMENTS √’d INITIALS